21st Conference on Atmospheric and Oceanic Fluid Dynamics and the 19th Conference on Middle Atmosphere

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 1

Idealized Approaches to the Atmospheric and Oceanic Circulation -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Malte F. Jansen, The University of Chicago

8:20 AM

Introductory Remarks

8:30 AM

1.1

Intrinsic Variability and the Predictability of a Periodically Forced Ocean

Christopher L. Wolfe, SUNY, Stony Brook, NY, NY; and P. Cessi and B. Cornuelle

8:45 AM

1.2A

Warm-Route Versus Cold-Route Interbasin Exchange in the Meridional Overturning Circulation

Paola Cessi, UCSD, La Jolla, CA; and C. S. Jones

Recorded Presentation

Handout (6.8 MB)

1.2

On the Thermally-Driven Ocean with Realistic Bathymetry

9:00 AM

1.3

Dynamics of the Abyssal Ocean Circulation Driven by Bottom-Intensified Mixing on Slopes

Jörn Callies, Harvard University, Cambridge, MA; and R. Ferrari

9:15 AM

1.4

Size Matters: Another Reason Why the Atlantic is Saltier than the Pacific

C Spencer Jones, SIO/Univ. Of California, La Jolla, CA; and P. Cessi

Recorded Presentation

Handout (3.9 MB)

9:30 AM

1.5

A Thermodynamic Model of the Global Ocean Overturning Circulation

Emily R. Newsom, California Institute of Technology, Pasadena, CA; and C. M. Bitz

Recorded Presentation

9:45 AM

1.6

Eddy Saturation in a Barotropic Model

Navid Constantinou, SIO, La Jolla, CA; and W. R. Young

Recorded Presentation

Handout (12.6 MB)

Session 1

The 2015–2016 QBO

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Margaret M. Hurwitz, Science Systems and Applications, Inc.

8:30 AM

Welcoming Remarks

8:45 AM

1.1

The Disruption of QBO Westerlies by Shallow Easterly Jets (Invited Presentation)

Peter Hitchcock, NCAR, Boulder, CO; and P. Haynes, W. J. Randel, and T. Birner

Recorded Presentation

9:15 AM

1.2

Response of Trace Gases to the Disrupted 2015–2016 Quasi-Biennial Oscillation

Olga V. Tweedy, Johns Hopkins University, Baltimore, MD; and N. Kramarova, S. E. Strahan, P. A. Newman, L. Coy, W. J. Randel, M. Park, D. W. Waugh, and S. M. Frith

Recorded Presentation

9:30 AM

1.3

Analyzing the Unprecedented QBO "Disruption" of Early 2016

Cory A Barton, NRL, Washington, DC; and J. P. McCormack

Recorded Presentation

9:45 AM

1.4

Wave Spectra during the Unexpected Qbo Disruption

Pu Lin, Princeton University, Princeton, NJ

Recorded Presentation

Coffee Break

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 2

Idealized Approaches to the Atmospheric and Oceanic Circulation -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Spencer A Hill, UCLA & Caltech

10:30 AM

2.1

Predicting Zonal-Mean Climate Change with a Moist Energy Balance Model

Kyle Armour, Univ. of Washington, Seattle, WA; and G. Roe, A. Donohoe, N. T. Siler, and N. Feldl

Recorded Presentation

10:45 AM

2.2

The Annual Cycle of the ITCZ and its Changes under CO2 Quadrupling in the TRACMIP Ensemble

Michela Biasutti, Lamont-Doherty Earth Observatory, Palisades, NY; and A. Voigt

Recorded Presentation

11:00 AM

2.3

Idealized Modelling of Monsoon Dynamics

Ruth Geen, University of Exeter, Exeter, United Kingdom; and F. H. Lambert and G. K. Vallis

Recorded Presentation

11:15 AM

2.4

Dynamical Aspects of the Eastern Pacific ITCZ Boundary Layer

Alex Omar Gonzalez, University of California Los Angeles, Los Angeles, CA; and W. H. Schubert

Recorded Presentation

11:30 AM

2.5

A 2.5-Layer Diabatic Long-Wave Balance Model for the Equatorial Î²-Plane

Andrea Gabrielski, University of Reading, Reading, United Kingdom; and T. G. Shepherd and S. J. Woolnough

Recorded Presentation

11:45 AM

2.6

Dry and Semi-Dry Tropical Cyclones in Radiative-Convective Equilibrium

Timothy W. Cronin, MIT, Cambridge, MA; and D. R. Chavas

Recorded Presentation

Session 2

The Quasi-Biennial Oscillation: Processes and Variability

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Margaret M. Hurwitz, Science Systems and Applications, Inc.

10:30 AM

2.1

Quasi-Biennial Oscillation Initiative

Jadwiga H. Richter, NCAR, Boulder, CO; and J. Anstey, N. Butchart, K. Hamilton, and S. M. Osprey

Recorded Presentation

11:00 AM

2.2

The Momentum Budget of the Quasi-Biennial Oscillation in the Whole Atmosphere Community Climate Model

Rolando R. Garcia, NCAR, Boulder, CO; and J. Richter

Recorded Presentation

11:15 AM

2.3

QBO/Solar Modulation of the Boreal Winter Madden-Julian Oscillation

Lon L. Hood, Univ. of Arizona, Tucson, AZ

Recorded Presentation

11:30 AM

2.4

Variability of Reactive Nitrogen Species and Ozone linked to the Stratospheric QBO

Mijeong Park, NCAR, Boulder, CO; and W. J. Randel, D. Kinnison, A. E. Bourassa, D. A. Degenstein, C. Roth, and C. McLinden

Recorded Presentation

11:45 AM

2.5

Early Winter Upward Planetary Wave Life Cycles As a Pathway for a Radiative Ozone-Wave Influence of the Midlatitude Qbo Signal

Vered Silverman, Tel Aviv University, Tel Aviv, Israel; and N. Harnik, K. Matthes, S. Lubis, and S. Wahl

Recorded Presentation

Lunch (On Your Own)

Session 3

Change in the Middle Atmosphere

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Rolando Garcia, NCAR

1:30 PM

3.1

What Can Observed Temperatures Tell Us about Stratospheric Dynamics over the past 40 Years?

Aaron L. Match, Princeton University, Princeton, NJ; and S. Fueglistaler

Recorded Presentation

1:45 PM

3.2

Do Stratospheric Ozone Measurements Show Large Tropical Width Changes?

Sean M. Davis, NOAA/ESRL, Boulder, CO; and B. Hassler and K. H. Rosenlof

2:00 PM

3.3

The Climate Impacts of Hydrofluorocarbons (HFCs): From the Earth's Surface to the Middle Atmosphere

Margaret M. Hurwitz, Science Systems and Applications, Inc., Greenbelt, MD; and E. L. Fleming, F. Li, P. A. Newman, and Q. Liang

Handout (1.4 MB)

2:15 PM

3.4

Stratospheric Transport Variability Diagnosed From Surface Measurements of Long-Lived Trace Gases

Eric A. Ray, CIRES/Univ. of Colorado, Boulder, CO; and J. S. Daniel, S. Montzka, R. W. Portmann, P. Yu, K. H. Rosenlof, and F. L. Moore

Recorded Presentation

2:30 PM

3.5

Stratospheric Response to the 11-year Solar Cycle: Breaking Planetary Waves, Internal Reflection and Resonance

Hua Lu, British Antarctic Survey, Cambridge, United Kingdom; and L. J. Gray, I. White, and T. Bracegirdle

Recorded Presentation

2:45 PM

3.6

Mitigation of Global Cooling By Stratospheric Chemistry Feedbacks in a Simulation of the Last Glacial Maximum

Satoshi Noda, Kyoto University, Kyoto City, Japan; and K. Kodera, Y. Adachi, M. Deushi, A. Kitoh, R. Mizuta, S. murakami, K. Yoshida, and S. Yoden

Recorded Presentation

Session 3

Tropical Circulation and Its Interaction with the Extra Tropics -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Allison A. Wing, Florida State University

1:30 PM

3.1

Observations of Convective Organization by the MJO

George Kiladis, OAR, Boulder, CO; and J. Dias, K. Kikuchi, and N. Sakaeda

Recorded Presentation

1:45 PM

3.2

Tropical-Extratropical Interactions as a Dry Dynamical Pathway to the MJO

Stefan N. Tulich, CIRES/Univ. of Colorado and NOAA/ESRL, Boulder, CO; and G. N. Kiladis and J. L. Mitchell

Recorded Presentation

2:00 PM

3.3

Connecting Tropical Diurnal Variability to the Decadal and Longer Time Scales through Nonlinear Resonance

Pedro Leite Silva Dias, University of São Paulo, São Paulo, Brazil; and C. Raupp, E. Ramirez, and B. Raphaldini

Recorded Presentation

2:15 PM

3.4

Yanai Waves and the Classification of Westward Propagating Waves on the Rotating Spherical Earth

Nathan Paldor, Hebrew University of Jerusalem, Jerusalam, Israel; and I. fouxon, O. Shamir, and C. I. Garfinkel

Recorded Presentation

2:30 PM

3.5

Towards a Seamlessly Diagnosable Expression for the Energy Flux Associated with Both Equatorial and Mid-Latitude Waves

Hidenori Aiki, Nagoya University, Nagoya, Japan; and R. J. Greatbatch and M. Claus

Recorded Presentation

2:45 PM

3.6

Beyond Rigid Lids: Baroclinic Modes in a Structured Atmosphere

Jacob P. Edman, University of California, Berkeley, CA; and D. M. Romps

Recorded Presentation

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 4

Water Vapor & Convection

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Chaim I. Garfinkel, Hebrew University

3:30 PM

4.1

Large Anomalies in Lower Stratospheric Water Vapor and Ice During the 2015-2016 El Niño

Karen H. Rosenlof, NOAA ESRL, Boulder, CO; and M. A. Avery, S. M. Davis, H. Ye, and A. E. Dessler

Recorded Presentation

3:45 PM

4.2

Stratospheric Water Vapor Feedback and Its Modification by Interactive Ozone Chemistry

Feng Li, USRA, Greenbelt, MD; and P. A. Newman and M. M. Hurwitz

Recorded Presentation

4:00 PM

4.3

Temperature Control of the Variability of Tropical Tropopause Layer Cirrus Clouds

Hsiu-Hui Tseng, University of Washington, Seattle, WA; and Q. Fu

4:15 PM

4.4

Matthew H. Hitchman, University of Wisconsin, Madison, WI; and S. M. Rowe

Recorded Presentation

Session 4

Tropical Circulation and Its Interaction with the Extra Tropics -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Cochairs: Jonathan L. Mitchell, University of California; George N. Kiladis, NOAA/ESRL

3:30 PM

4.1

Phase-Speed Spectra of Tropical Kelvin Waves and Mean Flow Interactions Derived from GPS Radio Occultation Measurements

William J. Randel, NCAR, Boulder, CO; and M. Park and P. Hitchcock

Recorded Presentation

3:45 PM

4.2

Clouds, Circulation, and Climate Sensitivity in a Radiative-Convective Equilibrium Channel Model

Allison A. Wing, Florida State University, Tallahassee, FL; and T. W. Cronin

Recorded Presentation

4:00 PM

4.3

Severity of Double-ITCZ Tied to Land Surface Temperature in Atmospheric Models

wenyu zhou, SIO, La Jolla, CA; and S. P. Xie

Recorded Presentation

4:15 PM

4.4

Hadley Cell Extent Linked to Biases in Cloud-Circulation Coupling, with Implications for Climate Sensitivity

Bernard R. Lipat Jr., Columbia Univ., New York, NY; and G. Tselioudis, K. M. Grise, A. Voigt, and L. M. Polvani

Recorded Presentation

4:30 PM

4.5

Increasing Potential for Intense Tropical and Subtropical Thunderstorms Under Global Warming

Martin S. Singh, Monash Univ., Clayton, Australia; and Z. Kuang, E. D. Maloney, W. Hannah, and B. Wolding

Recorded Presentation

4:45 PM

4.6

Spiral Gravity Waves Radiating from Tropical Cyclones

David S. Nolan, Univ. of Miami, Miami, FL; and J. A. Zhang

Recorded Presentation

Formal Poster Viewing

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Poster Session 1

Middle Atmosphere Poster Session

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Organizer: Natalia Calvo, Universidad Complutense de Madrid

Cochairs: Nicholas A. Davis, Colorado State University; Margaret M. Hurwitz, Science Systems and Applications, Inc.; R. Alan Plumb, MIT

1

Predictability of Stratospheric Sudden Warming Events in Grims Model

Kanghyun Song, Seoul National University, Seoul, Korea, Republic of (South); and C. Rhee, S. W. Son, and M. S. Koo

2

Different Ozone Variability related to the Madden-Julian Oscillation in the Upper Troposphere and Lower Stratosphere in El Niño and La Niña winters

Yuli Zhang, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China

3

Nonlinear Response of Tropical Lower Stratospheric Temperature and Water Vapor to ENSO: Implications for the Millenium Drop

Chaim I. Garfinkel, Hebrew University, Jerusalem, Israel; and A. Gordon, L. Oman, F. Li, S. Pawson, and D. W. Waugh

4

Relative Role of the MJO and Stratospheric Variability in North Atlantic Climate Patterns During Boreal Winter

Chen Schwartz, Hebrew University of Jerusalem, Jerusalem, Israel

5

Predictability of Polar-night Jet Oscillation Events and Its Impact on the Skill of Tropospheric Forecasts

Shunsuke Noguchi, MRI, Tsukuba, Japan; and H. Mukougawa

6

How Well Do Reanalyses Capture the Lower Stratosphere Temperature Hiatus from 1994 to Present?

Craig S. Long, NOAA/NWS/NCEP, College Park, MD

Handout (1.1 MB)

7

Stratospheric Control of Madden Julian Oscillation and Its Impact on Subseasonal-to-Seasonal Prediction

Seok-Woo Son, Seoul National Univ., Seoul, Korea, Republic of (South); and Y. Lim, C. Yoo, A. G. Marshall, and H. H. Hendon

8

Modeling Seasonal Stratospheric Sudden Warming Climatology Based on Polar Vortex Statistics

Matt Horan, University of Utah, Salt Lake City, UT; and T. Reichler

9

Interannual Variability in Equatorial Kelvin Waves in the Upper Troposphere and Lower Stratosphere, and Relation to the Background Equatorial Wind

Junko Suzuki, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; and N. Nishi, M. Fujiwara, and K. Yoneyama

10

Using Elliptical and Zonal Mean Metrics to Examine Variability in Model Skill during the 7 January 2013 Sudden Stratospheric Warming Event

Jonathan L. Blufer, SUNY, Albany, NY; and A. L. Lang and L. F. Bosart

11

Impact of Planetary Wave Reflection on Polar Stratospheric Ozone

Sandro Lubis, University of Chicago, Chicago, IL; and V. Silverman, K. Matthes, N. Harnik, N. E. Omrani, and S. Wahl

12

Climate Forecast System Reanalysis Model-Level Data

Amy Hawes Butler, CIRES/Univ. of Colorado, Boulder, CO; and S. M. Davis, H. L. Miller, C. S. Long, and K. H. Rosenlof

Handout (2.0 MB)

13

Differences in Stratospheric Radiative-Dynamical Feedbacks in Middle versus Polar Latitudes

John R. Albers, University of Colorado, Boulder, CO; and J. Perlwitz, T. Birner, and E. J. Charlesworth

14

The Transient Response of the Southern Ocean to Stratospheric Ozone Depletion

William J. M. Seviour, Johns Hopkins University, Baltimore, MD; and A. Gnanadesikan, D. W. Waugh, and M. A. Pradal

15

Morphology of CALIPSO Laminar Cirrus and Its Role in the Cross-Tropopause Water Vapor Transport

Jie Gong, USRA, Greenbelt, MD; and D. L. Wu and V. Tsai

16

Recent Trends in Extreme Precipitation and Temperature over Southeastern South America: The Dominant Role of Stratospheric Ozone Depletion

Yutian Wu, Purdue University, West Lafayette, IN; and L. M. Polvani

17

Time Varying Changes in the Simulated Structure of the Brewer Dobson Circulation

Chaim I. Garfinkel, Hebrew University, Jerusalem, Israel; and V. Aquila, L. D. Oman, and D. W. Waugh

18

Weakening and Shift of the Arctic Stratospheric Polar Vortex: Internal Variability or Forced Response?

William J. M. Seviour, Johns Hopkins University, Baltimore, MD

19

Quasi-Biennial Oscillation in Warming Climate

Jadwiga H. Richter, NCAR, Boulder, CO; and N. Butchart, J. Anstey, A. C. Bushell, C. Cagnazzo, C. C. Chen, R. R. Garcia, K. Hamilton, Y. Kawatani, F. Lott, C. McLandress, H. Naoe, S. M. Osprey, J. F. Scinocca, F. Serva, and S. Watanabe

20

Comparing Stratospheric Influence on Tropospheric Ozone Across CCMI Models

Anne S. Glanville, NCAR, Boulder, CO; and D. E. Kinnison and J. Neu

Joint Poster Session 1

Troposphere-Stratosphere Dynamical Coupling Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Hosts: (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics; and the 19th Conference on Middle Atmosphere )

21

Seasonal and ENSO Variations in Southern Hemisphere Westerly Jets

Nathaniel Loeb, University of Wisconsin, Madison, WI; and M. H. Hitchman

22

Tropical Moisture Export, Precipitation and the Role of Upper Level Circulation

Xiaoyu Long, RSMAS, Miami, FL

Poster Session 1A

Coupling Between Moisture, Clouds, and Circulation Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

23

A Global Cooling System by means of Artificial Convection

24

Evaluation of Convection Parameterizations in Variable-Resolution CESM over the Southern Great Plains

Ashley E. Payne, University of Michigan, Ann Arbor, MI; and C. Jablonowski

25

Vertical Velocity Shape and the Scaling of Tropical Precipitation Extremes with Warming

Tristan H. Abbott, MIT, Cambridge, MA; and T. W. Cronin

26

Sources of Inter-Model Scatter in TRACMIP, the Tropical Rain Belts with an Annual Cycle and Continent—Model Intercomparison Project

Jacob Scheff, LDEO, Palisades, NY; and M. Biasutti, A. Voigt, and B. R. Lavon

Manuscript (373.6 kB)

27

Effect of Moisture on Wave-Mean Flow Interactions in Idealized Baroclinic Life Cycles

Ray Yamada, MIT, Cambridge, MA; and O. Pauluis

28

A Case for a New Step in the Model Hierarchy: The Impact of Convective Parameterization on the Circulation Response to Global Warming in a Model of an Idealized Moist Atmosphere (MiMA)

Edwin P. Gerber, Courant Institute of Mathematical Sciences, New York, NY; and M. Jucker, C. I. Garfinkel, and N. Lutsko

29

Assessment of Symmetric Instability from Global Reanalysis Data

Ting-Chen Chen, McGill University, Montreal, QC, Canada; and P. M. K. Yau and D. J. Kirshbaum

30

Estimating Entrainment Rates for an EDMF Closure of Deep Convection from Large-Eddy Simulations

Yair Cohen, JPL, Pasadena, CA; and T. Schneider, J. Teixeira, C. M. Kaul, and K. G. Pressel

31

Testing the Role of Westerly Jet in the Termination of Meiyu

Wenwen Kong, Univ. of California, Berkeley, CA; and J. C. H. Chiang

32

The Role of Convection in African Easterly Wave Dynamics

James O. H. Russell, North Carolina State Univ., Raleigh, NC; and A. Aiyyer

Handout (1.6 MB)

33

A Westward Propagating Intraseasonal Mode over the Western Pacific

Alex Omar Gonzalez, University of California Los Angeles, Los Angeles, CA; and X. Jiang

34

Changes in Extratropical Diffusivity with Uniform Surface Warming

Todd Mooring, The University of Chicago, Chicago, IL; and T. A. Shaw

35

A Framework for Assessing Multiscale Interactions in Cloud-Resolving Simulations of Tropical Convection

Noah D. Brenowitz, New York University, New York, NY; and A. J. Majda

36

Thermodynamic and Dynamic Mechanisms in the Hydrological Response to Idealized SST Warming in an Aquaplanet Model

Gang Chen, UCLA, Los Angeles, CA; and J. Norris, J. D. Neelin, and J. Lu

37

The Onset of Convective Self-Aggregation

Da Yang, Univ. of California, Davis, CA

38

A Moist Entropy Budget View of South Asian Summer Monsoon Onset

Ding Ma, Columbia University, New York, NY; and J. Nie, A. H. Sobel, Z. Kuang, and M. S. Singh

39

Which Way Will the Circulation Shift in a Changing Climate? Possible Nonlinearity of Extratropical Cloud Feedbacks

Neil F. Tandon, Environment and Climate Change Canada, Toronto, ON, Canada; and M. A. Cane

40

Non-local Second Order Closure Scheme for Boundary Layer Turbulence and Convection

41

The Influence of an Eddy-Diffusivity/Mass-Flux (EDMF) Turbulence Parameterization on Convective Self-Aggregation

Wolfgang Langhans, LBNL, Berkeley, CA; and W. D. Collins

42

A New Multi-Plume Stochastic Eddy-Diffusivity/Mass-Flux Model: A Step Towards Unified Turbulence and Convection Parameterization

Kay Suselj, JPL, Pasadena, CA; and J. Teixeira and M. J. Kurowski

43

Static Stability Associated with Blocking Onsets in the Southern Hemisphere

Li Dong, Auburn University, Auburn, AL; and S. J. Colucci

Poster Session 1B

Idealized Approaches to the Atmospheric and Oceanic Circulation Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

44

Transient vs. Equilibrium Response of the Deep Ocean to Atmospheric Temperature Change

Malte F. Jansen, The University of Chicago, Chicago, IL

45

The Formation of Southern Ocean Gyres

Ryan Declan Patmore, British Antarctic Survey, Cambridge, United Kingdom; and P. Holland, A. Naviera Garabato, D. R. Munday, M. P. Meredith, and D. Stevens

47

Climate Response to Changes in the Meridional Energy Transport: Role of Ocean Dynamics

Francis Codron, Université Pierre et Marie Curie, Paris, France

48

Flow Regimes and Vacillation Cycles in the Presence of Topography

49

Atmospheric Response to SST Anomalies: Seasonal and Background-State Dependence

Stephen I. Thomson, University of Exeter, Exeter, United Kingdom; and G. K. Vallis

50

Forcing of the Asian and North American Monsoon Anticyclones by Regional Diabatic Heating

Leong Wai Siu, Texas A&M University, College Station, TX; and K. P. Bowman

Handout (1.9 MB)

52

Numerical Solution of a 2-D Model for the Formation of Zonal Jets

Girish Nigamanth Raghunathan, Arizona State University, Tempe, AZ; and H. P. Huang

53

Hadley Cell Regimes in an Idealized GCM for a Broad Range of Astronomical and Atmospheric Parameters

Alexander Paterson, University of Exeter, Exeter, United Kingdom; and G. K. Vallis

54

The Time-Dependent Evolution of the Tropical Cyclone Low-Level Wind Field

Daniel R. Chavas, Purdue Univ., West Lafayette, IN; and K. A. Reed

55

Aquaplanet Hydrologic Cycle Sensitivities to Model Configration in Present and Future Climates

James J. Benedict, RSMAS, Fort Collins, CO; and A. C. Clement and B. Medeiros

Handout (5.0 MB)

56

Toward the Use of Convective Quasi-Equilibrium as a Predictor for Changes in the Seasonal Cycle of Tropical Precipitation in Aquaplanet Simulations

Bryce E. Harrop, PNNL, Richland, WA; and J. Lu and L. R. Leung

Handout (5.6 MB)

57

Understanding Summertime Regional Rainfall Projections through a Hierarchical Modeling Approach

Patrick Kelly, PNNL, Richland, WA; and J. Lu and L. R. Leung

58

Understanding the Dynamics of Ocean Heat Transport across the Antarctic Slope

Wilma Gerturd Charlotte Huneke, University of Tasmania, Hobart, Australia; and A. Klocker and B. Galton-Fenzi

59

Exploring the Relations between the Strength of Global Entropy Cycle and Equator-to-Pole Temperature Gradient in an Idealized General Circulation Model

Chiung-Yin Chang, Princeton University, Princeton, NJ; and I. M. Held

60

Understanding the Tropical Overturning Circulation: The Importance of Eddy Momentum Fluxes and Eddy Heat Fluxes

Martin S. Singh, Monash Univ., Clayton, Australia; and Z. Kuang

61

Resolved Entrainment in Thermals using Direct Numerical Simulations

Daniel Lecoanet, Princeton University, Princeton, NJ; and N. Jeevanjee

62

The Influence of Idealized Zonally-Varying Boundary Conditions on Zonally-Asymmetric ITCZ Migrations

Ho-Hsuan Wei, California Institute of Technology, Pasadena, CA; and S. Bordoni

63

Competing Effects of Surface Albedo and Orographic Elevated Heating on Regional Climate

Shineng Hu, Yale University, New Haven, CT; and W. R. Boos

Using the Weak Temperature Gradient Approximation to Diagnose Multiple Equilibria across a range of Sea Surface Temperatures

64

Roles of Upper- versus Lower-level Thermal Forcing in Shifting the Eddy-Driven Jet

Yang Zhang, Nanjing University, Nanjing, Jiangsu, China; and Y. Nie, G. Chen, and X. Yang

Poster Session 1C

Tropical Circulation and Its Interaction with the Extra Tropics Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Convectively Coupled Waves: A Mechanistic Picture

65

Classification of Eastward Propagating Waves on the Spherical Earth

Chaim I. Garfinkel, Hebrew University, Jerusalem, Israel; and I. fouxon, O. Shamir, and N. Paldor

66

Equatorial Wave Expansion of Instantaneous Flows for Diagnosis of Equatorial Waves from Data: Formulation and Illustration

Ming Cai, NSF, Arlington, VA; and C. A. Barton

67

Generation of Equatorial Kelvin, Yanai and Short n = 1 Rossby Waves Near a Western Boundary, and Long n = 1 Rossby Waves Near an Eastern Boundary

Dennis Wilson Moore, PMEL, Seattle, WA; and H. Hristova, T. S. Durland, and J. P. McCreary Jr.

Handout (6.6 MB)

68

A New Equation for the Inversion of Ertel's Potential Vorticity to be Used for the Model Diagnosis of Group-Velocity-Based Energy Flux Associated with Waves at All Latitudes

Hidenori Aiki, Nagoya University, Nagoya, Japan; and R. J. Greatbatch

Handout (8.2 MB)

69

Michael Goss, Pennsylvania State Univ., University Park, PA; and S. B. Feldstein

70

Scale Interactions in the Tropics from a Simple Multi-Cloud Model

Xiaoyun Niu, University of California, Davis, CA; and J. A. Biello

71

Land Surface Albedo Bias in Climate Models and Its Association with Tropical Precipitation

Xavier J. Levine, Yale University, New Haven, CT; and W. R. Boos

72

Relationship of Dynamical Variables with Precipitation Forecasts for Large Scale Tropical Convection in GFS and IFS

Maria Gehne, CIRES/Univ. of Colorado and NOAA, Boulder, CO; and J. Dias and G. N. Kiladis

73

Equatorial Superrotation at Earth's Surface

Rodrigo Caballero, Stockholm Univ., Stockholm, Sweden; and H. Carlson

74

Understanding Sources of Tropical Rainfall Forecast Errors

Juliana Dias, CIRES/Univ. of Colorado and NOAA/ESRL/Physical Sciences Division, Boulder, CO; and G. N. Kiladis and M. Gehne

75

Why Do Modelled and Observed Surface Wind Stress Climatologies Differ in the Trade Wind Regions?

Isla R. Simpson, Univ. of Texas, Richardson, TX; and J. T. Bacmeister, I. Sandu, and M. J. Rodwell

76

The Implication of Summer Monsoon Onset from Seasonally Migrating Linear Rossby Wave and Wave-Breaking Regimes

Hung-I Lee, University of California, Los Angeles, CA; and J. L. Mitchell, C. S. Y. Huang, S. A. Hill, J. M. Lora, G. Chen, and A. K. Tripati

77

Tropical Forcing of Atmospheric River Events in the North Pacific: Implications for Southern California

Jonathan L. Mitchell, University of California, Los Angeles, CA

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 5

Coupling Between Moisture, Clouds, and Circulation -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Cochairs: Kevin M. Grise, Univ. of Virginia; Naoko Sakaeda, NOAA

8:15 AM

5.1

Rainy-Benard Convection

Geoffrey K. Vallis, University of Exeter, Exeter, United Kingdom; and S. Tobias and D. J. Parker

8:30 AM

5.2

The Vertical Structure of Radiative-Convective Instability

Tom Beucler, MIT, Cambridge, MA; and T. W. Cronin and K. Emanuel

Recorded Presentation

8:45 AM

5.3

Vertical Velocity in the Gray Zone

Nadir Jeevanjee, GFDL, Princeton, NJ

Recorded Presentation

9:00 AM

5.4

Boundary Layer Height, Buoyancy, and the Size of Convective Self-Aggregation

Da Yang, Univ. of California, Davis, CA

9:15 AM

5.5

Simultaneous Characterization of the Dynamics of Tropical Precipitation Extremes on Mesoscales and Convective Scales

Benjamin Fildier, UC Berkeley, Berkeley, CA; and H. Parishani and W. D. Collins

Recorded Presentation

9:30 AM

5.6

Do We Need Parameterised Convection to Get the Model Climatology Right?

Penelope Maher, University of Exeter, Exeter, United Kingdom; and G. K. Vallis, M. J. Webb, and S. C. Sherwood

Recorded Presentation

9:45 AM

5.7

A New Model Hierarchy to Understand the Impact of Radiation and Convection on the Extratropical Circulation Response to Climate Change

Zhihong Tan, University of Chicago, Chicago, IL; and T. A. Shaw

Recorded Presentation

Session 5

Reanalyses and their Applications

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Nicholas A. Davis, Colorado State University

8:15 AM

5.1

Brewer-Dobson Circulation Inter-Comparison Based on Reanalyses and Models (Invited Presentation)

Thomas Birner, Colorado State Univ., Fort Collins, CO

8:45 AM

5.2

Dynamics of the Stratospheric Aleutian Anticyclone

Stephen J. Colucci, Cornell University, Ithaca, NY; and T. S. Ehrmann

Recorded Presentation

9:00 AM

5.3

Evaluation of Lower Stratosphere Temperatures in Reanalyses in the Southern High Latitudes

Craig S. Long, NOAA/NWS/NCEP, College Park, MD

Recorded Presentation

Handout (1.4 MB)

9:15 AM

5.4

The Role of Calbuco Volcanic Aerosols on 2015 South Polar Ozone Depletion

Kane A. Stone, MIT, Cambridge, MA; and S. Solomon, D. Kinnison, M. C. Pitts, L. R. Poole, M. Mills, A. Schmidt, R. R. Neely III, D. J. Ivy, M. J. Schwartz, B. Johnson, M. B. Tully, A. R. Klekociuk, and G. König-Langlo

Recorded Presentation

9:30 AM

5.5

Airborne Observations of Non-orographic Gravity Waves over the Southern Ocean: Tropospheric or Stratospheric Wave Excitation?

Tanja Christina Portele, DLR, Wessling, Germany; and A. Dörnbrack, B. P. Williams, P. D. Pautet, and N. Žagar

9:45 AM

5.6

Modification and Application of the Navy Global Environmental Model (NAVGEM) to Generate High-Altitude (0-100 km) Global Atmospheric Reanalyses of the 2014 Austral Winter for the Deep Propagating Gravity Wave Experiment (DEEPWAVE)

Stephen D. Eckermann, NRL, Washington, DC; and J. Ma, D. D. Kuhl, K. W. Hoppel, J. P. McCormack, J. Doyle, B. Ruston, N. L. Baker, K. C. Viner, T. R. Whitcomb, and T. F. Hogan

Recorded Presentation

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 6

Coupling Between Moisture, Clouds, and Circulation -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Da Yang, Univ. of California

10:30 AM

6.1A

A New Paradigm for Tropical Anvil Clouds

Jacob T. Seeley, University of California, Berkeley, CA; and N. Jeevanjee, W. Langhans, and D. M. Romps

Recorded Presentation

6.1

A thermodynamic constraint on the depth of the global tropospheric circulation

10:45 AM

6.2

Local and Remote Cloud Radiative Effect Impacts onto the Extratropical Atmospheric Circulation

Oliver Watt-Meyer, University of Washington, Seattle, WA; and D. M. W. Frierson

Recorded Presentation

11:00 AM

6.3

Contributions of Climate Feedbacks to Changes in Atmospheric Circulation

Paulo Ceppi, Univ. of Reading, Reading, United Kingdom; and T. G. Shepherd

Recorded Presentation

11:15 AM

6.4

Sensitivities of Arctic Clouds to Climate Change

Xiyue Zhang, California Institute of Technology, Pasadena, CA; and T. Schneider, K. G. Pressel, and C. M. Kaul

Recorded Presentation

11:30 AM

6.5

The Role of Downward Infrared Radiation in the Recent Arctic Winter Warming Trend

Tingting Gong, Chinese Academy of Sciences, Qingdao, China; and S. B. Feldstein and S. Lee

Recorded Presentation

11:45 AM

6.6

The Diurnal Cycle of Rainfall and Cloudiness Associated with ENSO

Naoko Sakaeda, NOAA, Boulder, CO; and T. O. Hurt Jr., G. N. Kiladis, and J. Dias

Recorded Presentation

Session 6

Observations

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Nicholas A. Davis, Colorado State University

10:30 AM

6.1

An Overview of OCTAV-UTLS (Observed Composition Trends and Variability in the UTLS), a SPARC Emerging Activity

Gloria L. Manney, NorthWest Research Associates & New Mexico Tech, Socorro, NM; and P. Hoor, I. Petropavlovskikh, A. E. Bourassa, G. Braathen, K. L. Chang, M. I. Hegglin, N. Kramarova, D. Kunkel, Z. D. Lawrence, T. Leblanc, N. J. Livesey, L. F. Millan, G. Stiller, S. Tegtmeier, V. Thouret, C. Voigt, and K. A. Walker

Recorded Presentation

11:00 AM

6.2

A Re-analysis for the Observed Responses of Mesospheric H2O to Solar Cycle Forcings

Ellis Remsberg, NASA/LaRC, Hampton, VA

Recorded Presentation

11:15 AM

6.3

Modulation of Stratospheric Kelvin Wave Activity from the Troposphere

George Kiladis, OAR, Boulder, CO; and K. B. Karnauskas and L. Zhang

Recorded Presentation

11:30 AM

6.4

Tropopause-Overshooting Convection from GridRad Radar Observations

John W. Cooney, Texas A&M Univ., College Station, TX; and K. P. Bowman and C. R. Homeyer

Recorded Presentation

11:45 AM

6.5

Wavelet Analysis of the effects of Gravity Waves on Water Vapor in the Tropical Tropopause Layer over Darwin, Australia

Andrew M. Dzambo, University of Wisconsin, Madison, WI; and M. H. Hitchman

Recorded Presentation

Lunch (On Your Own)

Town Hall Meeting 1

Town Hall Meeting: Simpler Models in CESM: Where We Are, and Where to Go from Here

Location: Salon F (Marriott Portland Downtown Waterfront)

Hosts: (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics; and the 19th Conference on Middle Atmosphere )

Facilitators: Edwin P. Gerber, New York Univ.; Aditi Sheshadri, Columbia University; Isla R. Simpson, Univ. of Texas

Joint Session 1

Troposphere-Stratosphere Dynamical Coupling (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics and the 19th Conference on Middle Atmosphere)

Location: Salon F (Marriott Portland Downtown Waterfront)

Hosts: (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics; and the 19th Conference on Middle Atmosphere )

Cochairs: Laura Holt, NorthWest Research Associates; Edwin P. Gerber, New York Univ.

1:30 PM

J1.1

Stratospheric Influence on Moist Convection in a Minimal Model of QBO-like Oscillation in a Stratosphere-Troposphere Coupled System

Shigeo Yoden, Kyoto Univ., Kyoto, Japan; and H. H. Bui and E. Nishimoto

Recorded Presentation

1:45 PM

J1.2

Stratospheric Influences on the Seasonality of Tropical Cyclone Potential Intensity

Daniel Gilford, MIT, Cambridge, MA; and S. Solomon and K. A. Emanuel

Recorded Presentation

2:00 PM

J1.3

On the Linkage between Asian Summer Monsoon and Tropopause Folds

Yutian Wu, Purdue University, West Lafayette, IN; and G. Chen

Recorded Presentation

J1.4

Coupling between Ozone and the Circulation: A Negative Feedback on Southern Hemispheric Climate Change

2:15 PM

J1.4A

Periodic Behavior of Finite-Amplitude Wave Activity in the Southern Hemisphere Storm Track

Lei Wang, Univ. of Chicago, Chicago, IL; and N. Nakamura

Recorded Presentation

2:30 PM

J1.5

The Circulation Response to Volcanic Eruptions: The Importance of Tropical Stratospheric Warming

Kevin DallaSanta, Courant Institute of Mathematical Sciences, New York University, New York, NY; and E. P. Gerber

Recorded Presentation

2:45 PM

J1.6

Stratospheric Variability Contributed to and Sustained the Recent Hiatus in Eurasian Winter Warming

Chaim I. Garfinkel, Hebrew University, Jerusalem, Israel; and S. W. Son, K. Song, V. Aquila, and L. Oman

Recorded Presentation

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Joint Session 2

Transport and Mixing (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics and the 19th Conference on Middle Atmosphere)

Location: Salon F (Marriott Portland Downtown Waterfront)

Hosts: (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics; and the 19th Conference on Middle Atmosphere )

Cochairs: John R. Albers, University of Colorado; R. Alan Plumb, MIT

3:30 PM

J2.1

How Will Climate Change Impact Large-Scale Transport in the Upper Troposphere and Lower Stratosphere (UTLS)?

Marta Abalos, NCAR, Boulder, CO; and W. Randel, R. R. Garcia, and D. Kinnison

Recorded Presentation

J2.2

Transport and Stirring by the Asian Monsoon Anticyclone

3:45 PM

J2.2A

Atmospheric Barotropic Energy Transfer Response to Global Warming

Rei Chemke, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

Recorded Presentation

4:00 PM

J2.3

Transport from the Northern Hemisphere Midlatitude Surface: Comparisons Between the CCMI Models

Clara Orbe, NASA, Washington, DC; and D. W. Waugh and H. Yang

Recorded Presentation

4:15 PM

J2.4

A Theory for Stratospheric Transport from Age of Air

Marianna Linz, MIT, Cambridge, MA; and R. A. Plumb, E. P. Gerber, and A. Sheshadri

Recorded Presentation

4:30 PM

J2.5

Marginally Unstable Turbulence in Forced, Stratified Shear Flows

William D Smyth, College of Oceanic & Atmospheric Sciences, Oregon State University, Corvallis, OR; and H. Pham, J. N. Moum, and S. Sarkar

4:45 PM

J2.6

Linear Analysis of Moisture Transport Due to Baroclinic Waves

Alfredo N Wetzel, Univ. of Wisconsin, Madison, WI; and L. M. Smith and S. N. Stechmann

Recorded Presentation

Formal Poster Viewing

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Joint Poster Session 2

Transport and Mixing Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Hosts: (Joint between the 21st Conference on Atmospheric and Oceanic Fluid Dynamics; and the 19th Conference on Middle Atmosphere )

78

Revisiting Eddy-Induced Oceanic Transport in a Qg Model.

Josephine Anne Park, Imperial College, London, United Kingdom

79

On the Relationship between Inertial Instability, Poleward Momentum Surges and Jet Intensifications near Midlatitude Cyclones

Shellie M. Rowe, University of Wisconsin, Madison, WI; and M. H. Hitchman

80

Synoptic Formation of Double Tropopauses

Chengji Liu, Colorado State University, Fort Collins, CO; and E. A. Barnes

81

Changes in Stratospheric Transport Induced by Sudden Stratospheric Warmings in Reanalysis and Model

Alvaro de la Camara, NCAR, Boulder, CO; and M. Abalos

82

Effects of Langmuir Turbulence on Upper Ocean Carbonate Chemistry

Katherine M. Smith, University of Colorado, Boulder, CO; and P. E. Hamlington, K. Niemeyer, B. Fox-Kemper, and N. S. Lovenduski

Poster Session 2A

Atmosphere-Ocean-Ice Interactions Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

83

Atmospheric Precursors of and Response to Anomalous Arctic Sea Ice in CMIP5 Models

Michael Ewens Kelleher, University of Exeter, Exeter, United Kingdom; and J. Screen

Handout (1.4 MB)

84

Isolating the Decadal Component of the Pacific Decadal Oscillation

Robert Wills, University of Washington, Seattle, WA; and D. S. Battisti, T. Schneider, and D. L. Hartmann

85

Sensitivity of Midlatitude Atmospheric Circulation Decadal Alteration to Observed Pacific-Indian SSTs during 1960–1999

Cuijiao Chu, Nanjing University, Nanjing, China

86

Understanding the Role of Oceanic Feedback in a Fully Coupled Ocean-Atmosphere Interaction

Oluwayemi Garuba, PNNL, Richland, WA; and J. Lu and F. Liu

Handout (3.0 MB)

87

Basin-Width Dependence of Northern Deep Convection

88

Sill-Controlled Circulation in Ice Shelf Cavities

Ken Zhao, UCLA, Los Angeles, CA; and A. L. Stewart and J. C. McWilliams

Handout (2.5 MB)

114A

Role of the Western Pacific Heat Buildup for the Timing, Magnitude and Prediction of ENSO

Desislava Petrova, Climate and Health Group, ISGLOBAL/Catalan Institute for Climate Sciences, Barcelona, Spain; and J. Ballester, S. Koopmans, S. Bordoni, B. Cash, M. García-Díez, and X. Rodo

Poster Session 2B

Dynamics of Past and Future Climates (Poster Session)

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

89

The Relationship Between Antarctic Sea Ice, Buoyancy Fluxes, Deep Ocean Stratification, and Overturning Circulation in Modern and Glacial Climate Simulations

Alice Marzocchi, The University of Chicago, Chicago, IL; and M. F. Jansen

90

Dynamics of the Three-Dimensional Ocean Overturning: Glacial Transitions and Inter-Hemispheric Coupling

Andrew F. Thompson, California Institute of Technology, Pasadena, CA; and J. Adkins and S. Hines

91

Direct Effects of Radiative Forcing on Ocean Heat Uptake

Molly Syme, McGill University, Montreal, QC, Canada; and T. M. Merlis

92

The Role of the Nonlinearity of the Stefan-Boltzmann Law on the Structure of Radiatively Forced Temperature Change

Matthew Henry, McGill University, Montreal, QC, Canada; and T. M. Merlis

Handout (233.9 kB)

Multiple Equilibria and Overturning Variability of the Aegean-Adriatic Seas

93

Atmospheric Eddies Mediate Lapse Rate Feedback and Arctic Amplification

Nicole Feldl, Univ. of California, Santa Cruz, CA; and B. T. Anderson and S. Bordoni

94

Orbitally Forced Radiative Feedbacks as Drivers of Ice-Sheets in a GCM with Observationally Constrained Mixed-Phase Clouds

Navjit Sagoo, Yale University, New Haven, CT; and L. C. Hahn, T. Storelvmo, A. J. Broccoli, and M. P. Erb

95

The Response of Northern Hemispheric Monsoon Precipitation Patterns to Extra-Tropical Forcing Under Last Glacial Maximum

Hung-I Lee, University of California, Los Angeles, CA; and J. M. Lora, J. L. Mitchell, G. Chen, and A. K. Tripati

96

Atmospheric Circulation Impacts of Alternative Warming Scenarios for the Eocene

Rodrigo Caballero, Stockholm Univ., Stockholm, Sweden; and H. Carlson

97

Seasonal Response of Midlatitude Internal Variability to Sea Ice Loss

Bryn Ronalds, Colorado State University, Fort Collins, CO; and E. A. Barnes

98

Multi-Scale Response of Moisture Flux to Projected Sea Ice Loss

Marie C. McGraw, Colorado State University, Fort Collins, CO; and C. F. Baggett, C. Liu, B. D. Mundhenk, and E. A. Barnes

99

Understanding the Timescales of the Tropospheric Circulation Response to Abrupt CO₂ Forcing in the Southern Hemisphere

Kevin M. Grise, Univ. of Virginia, Charlottesville, VA; and L. M. Polvani

100

A Comparison of Methods on Dynamical Adjustment in a Large Ensemble of Climate Simulations

Jingyuan Li, Colorado State University, Fort Collins, CO; and D. W. J. Thompson

101

Response of Convective Thermodynamics to Changing SST in a Radiative Convective Equilibrium Simulation Analyzed using an Isentropic Streamfunction

Michael W. Lever, New York University, New York, NY; and O. Pauluis

102

Understanding Regional Projections of Extreme Precipitation

Neil F. Tandon, Environment and Climate Change Canada, Toronto, ON, Canada; and X. Zhang

103

Moisture Budget of Precipitation Extremes in a Warming Climate

Jesse Norris, Univ. of California, Los Angeles, CA; and G. Chen and J. D. Neelin

104

The Sensitivity of the Global Moist Isentropic Circulation and the Response to Surface Perturbations in an Idealized Moist Model

Robert Fajber, Unversity of Toronto, Toronto, ON, Canada; and P. J. Kushner and F. B. Laliberte

Poster Session 2C

Mesoscale Ocean Dynamics Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

105

A Regime Diagram for Ocean Geostrophic Turbulence

Andreas Klocker, University of Tasmania, Hobart, Australia; and D. P. Marshall, S. R. Keating, and P. L. Read

106

Instabilities and Interior Transport Pathways of the Deep Western Boundary Current

Aviv Solodoch, University of California, Los Angeles, CA

107

Evidence of Jet-Scale Overturning Circulations in an Eddy-Resolving Ocean Model and Observed Argo Trajectories

Qian Li, The Pennsylvania State University, State College, PA; and S. Lee

108

Eddy-Mean Flow Interaction in an Idealized Poleward Eastern Boundary Current

Suyash Bire, SUNY, Stony Brook, NY; and C. L. Wolfe

109

A New Approach to the Oceanic Meso-Scale Eddy Parameterization Problem

Rémi Tailleux, University of Reading, Reading, United Kingdom

110

Interannual Variability of Gulf Stream Dynamics from Altimetry

Laure Zanna, University of Oxford, Oxford, United Kingdom; and T. bolton

111

What Can Meandering Front Spectra Tell Us about Jet Stability?

Stuart Bishop, North Carolina State University, Raleigh, NC

112

Eddy Memory Mode of Low-frequency Ocean Variability

Georgy E. Manucharyan, California Institute of Technology, Pasadena, CA; and A. F. Thompson and M. A. Spall

113

Dynamics of Oceanic Jets in the Presence of Zonally Varying Bottom Topography

Hemant Khatri, Imperial College, London, United Kingdom; and P. S. Berloff

114

How Does the Antarctic Circumpolar Current Affect the Southern Ocean Meridional Overturning Circulation?

115

Mixed-Layer Instability As a Source of Surface Kinetic Energy in the Seasonal Cycle in a Global Climate Model

Takaya Uchida, Columbia University in the City of New York, Palisades, NY; and R. P. Abernathey and S. Smith

Handout (1.6 MB)

116

Temporal Variability of Surface Eddy Diffusivities in the Global Ocean from Altimetry

Julius Busecke, LDEO, Brooklyn, NY; and R. P. Abernathey

Handout (2.4 MB)

117

Potential Vorticity Redistribution in the Forced Shallow Water System

Michael Haigh, Imperial College London, London, United Kingdom

118

Testing Mesoscale Eddy Parameterizations in the `Neverland' Configuration

Sina Khani, Princeton University, Princeton, NJ; and A. Adcroft and M. F. Jansen

119

Filtering the Ocean: New Insight into the Baroclinic Instability

Mahmoud M Sadek, University of Rochester, Rochester, NY; and H. Aluie, G. K. Vallis, and M. W. Hecht

120

Nonlinear Dynamics of Homogeneous Rotating Exchange Flows

Miguel A. Jimenez-Urias, University of Washington, Seattle, WA; and L. Thompson

121

Detection of the Equatorial Roll in the Mixed Layer of the Indian Ocean

Michael J. McPhaden, PMEL, Seattle, WA; and Y. Wang

Poster Session 2D

Planetary Atmospheres and Oceans Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

122

The Dynamical Range of Ocean Circulation on Synchronously Rotating Planets Around M Stars

Jun Yang, Peking University, Beijing, China; and D. S. Abbot, E. Tziperman, and Y. Ashkenazy

123

The Turbulent Circulation of a Globally Ice-Covered Ocean

Malte F. Jansen, The University of Chicago, Chicago, IL

124

The Hotspot Offset on Asynchronously Rotating Exoplanets: A Shallow Water Model

James Penn, University of Exeter, Exeter, United Kingdom; and G. K. Vallis

Handout (922.9 kB)

125

Climate Dependencies on Obliquity and Radiative Timescales

Ilai Guendelman, Weizmann institute of science, Rehovot, Israel; and Y. Kaspi

126

Thermal Wind Balance of Fluid Planets: The Effects of Oblateness, Centrifugal Forces, and Self-Gravitation

Eli Galanti, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

127

The Stability of Mars' Annular Polar Vortex

William J. M. Seviour, Johns Hopkins University, Baltimore, MD; and D. W. Waugh and R. K. Scott

128

A Rayleigh-Drag Representation of Moist Convection in a Jupiter GCM

Stephen I. Thomson, University of Exeter, Exeter, United Kingdom; and G. K. Vallis

129

Circumpolar Circulation Due to Small-Scale Tilted Convection in the Saturn's Atmosphere Studied with Laboratory Altimetry

Yakov Afanasyev, Memorial University of Newfoundland, St. John's, Canada

130

On the Role of the Divergent Motions for the Tropical Momentum Balance

131

An Idealized Dynamical Model of General Terrestrial Atmospheres: From Earth Towards Venus

G. J. Colyer, University of Exeter, Exeter, United Kingdom; and G. K. Vallis

132

Shallow Water Modeling of Jovian Polar Cyclone and Vortices

Cheng Li, JPL/California Institute of Technology, Pasadena, CA; and A. P. Ingersoll

133

Convergence Zone and Hadley Cell Dependence on Rotation Rate and Seasonal Cycle Characteristics in Dry Atmospheres

Spencer A Hill, UCLA & Caltech, Los Angeles, CA; and S. Bordoni and J. L. Mitchell

134

ITCZ Shift Dynamics May be Muted By a Hemispheric Rearrangement of Surface Fluxes That Thermodynamically Promote the Ocean's Efficiency to Mediate Asymmetric Top-of-Atmosphere Forcing

Sungduk Yu, University of California, Irvine, CA; and M. S. Pritchard

135

Atmospheric Dynamics of Massive Atmospheres

Rei Chemke, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 7

Modeling and Theory

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Thomas Birner, Colorado State Univ.

8:00 AM

7.1

The Dynamics of the Monsoon Anticyclone—a Single-Layer Model Study

Philip M. Rupp, University of Cambridge, Cambridge, United Kingdom; and P. H. Haynes

Recorded Presentation

Handout (2.0 MB)

8:15 AM

7.2

Understanding How Model Numerics Bias Tracer Transport: Insight from the Age of Air in Idealized Gcms

Aman Gupta, Courant Institue of Mathematical Sciences, New York, NY; and E. P. Gerber and O. Pauluis

Recorded Presentation

8:30 AM

7.3

The Interaction between Atmospheric Gravity Waves and Large-Scale Flows: An Efficient Description beyond the Non-Acceleration Paradigm

Ulrich Achatz, Goethe Universität, Frankfurt am Main, Germany; and G. Bölöni, B. Ribstein, J. Muraschko, C. Sgoff, and J. Wei

Recorded Presentation

8:45 AM

7.4

Role of Surface Forcing for Stratosphere-Troposphere Coupling in an Idealized Model

Zheng Wu, University of Utah, Salt Lake City, UT; and T. Reichler

Recorded Presentation

9:00 AM

7.5

An Analysis of Sudden Stratospheric Warmings and QBO-like oscillations in Idealized General Circulation Models

Christiane Jablonowski, Univ. of Michigan, Ann Arbor, MI; and W. Yao

Recorded Presentation

9:15 AM

7.6

Seasonal Winter Forecasts of the Northern Stratosphere and Troposphere: Results from JMA Seasonal Hindcast Experiments

Masakazu Taguchi, Aichi University of Education, Kariya, Japan

Recorded Presentation

9:30 AM

7.7

An Evaluation of Gravity Waves and Their Sources in the Southern Hemisphere in the 7-Km GEOS-5 Nature Run

Laura Holt, NorthWest Research Associates, Boulder, CO; and M. J. Alexander, L. Coy, C. Liu, A. Molod, W. M. Putman, and S. Pawson

Recorded Presentation

9:45 AM

7.8

The Role of the Stratospheric Pathway in Linking the Arctic Sea Ice Loss to the Midlatitude Circulation in CMIP5 Models

Bithi De, Purdue University, West Lafayette, IN; and Y. Wu

Session 7

Planetary Atmospheres and Oceans

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Rei Chemke, Weizmann Institute of Science

8:15 AM

7.1

Determining the Depth of Jupiter's Zonal Flows Using Gravity Measurements: Results from Juno's First Year Orbiting Jupiter

Yohai Kaspi, Weizmann Institute of Science, Rehovot, Israel; and E. Galanti

8:30 AM

7.2

Constraining the Vertical Structure of Zonal Jets on the Gas Giant Planets

Richard K. Scott, University of St Andrews, St Andrews, United Kingdom; and T. J. Dunkerton

Recorded Presentation

8:45 AM

7.3

Climates of High Obliquity Terrestrial Planets

Ana H. Lobo, California Institute of Technology, Pasadena, CA; and S. Bordoni

Recorded Presentation

9:00 AM

7.4

Characterizing the Atmospheres of Rocky Exoplanets Using Entropy Budgets

Daniel D.B. Koll, MIT, Cambridge, MA; and D. S. Abbot

Recorded Presentation

9:15 AM

7.5

Effects of the Mean Flow on the Properties of Martian Transient Eddies

Todd Mooring, The University of Chicago, Chicago, IL; and I. M. Held and R. J. Wilson

Recorded Presentation

9:30 AM

7.6

Slantwise Convection on Fluid Planets

Morgan E O'Neill, University of Chicago, Chicago, IL; and Y. Kaspi

Recorded Presentation

9:45 AM

7.7

Kinematics of Jupiter's Atmosphere from 1 to 100 Bars. First Results from the Juno Microwave Radiometer

Andrew P. Ingersoll, California Institute of Technology, Pasadena, CA; and C. Li

Recorded Presentation Manuscript (1.9 MB)

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 8

Theory and Dynamics of Atmosphere-Ocean-Ice Interactions

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Christopher L. Wolfe, SUNY

10:30 AM

8.1

Feedbacks on ITCZ migrations from atmosphere-ocean coupling

Tapio Schneider, California Institute of Technology, Pasadena, CA

10:45 AM

8.2

Impact of Ocean Dynamics on Polar Climate Change

Hansi K. A. Singh, PNNL, Richland, WA; and P. J. Rasch and B. E. J. Rose

Recorded Presentation

11:00 AM

8.3

Ice Caps and Ice Belts: The Effects of Obliquity on Albedo Feedback

Brian E. J. Rose, SUNY, Albany, NY; and T. W. Cronin and C. M. Bitz

Recorded Presentation

11:15 AM

8.4

Developing a Coupled Modeling Framework to Investigate Antarctic Bottom Water Formation in Prydz Bay

Jeff A. Willison, North Carolina State Univ., Raleigh, NC; and R. He, M. S. Dinniman, and X. Yuan

Recorded Presentation

11:30 AM

8.5

Impact of Tropical Pacific SsTs on Recent Antarctic Sea-Ice Trends

Francis Codron, Université Pierre et Marie Curie, Paris, France

Recorded Presentation

11:45 AM

8.6

The Atmospheric Response to Extratropical Ocean Warming Induced By Arctic Sea Ice Loss

Paul J. Kushner, Univ. of Toronto, Toronto, Canada; and R. Blackport

Recorded Presentation

Session 8

Transport and Circulation in the Middle Atmosphere

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Marta Abalos, NCAR

10:30 AM

8.1

The Strength of the Meridional Overturning Circulation of the Stratosphere

Marianna Linz, MIT, Cambridge, MA; and R. A. Plumb, E. P. Gerber, F. J. Haenel, G. Stiller, D. Kinnison, A. Ming, and J. L. Neu

Recorded Presentation

10:45 AM

8.2

Impacts of Jet Biases on Summertime Transport into the Arctic

Huang Yang, Johns Hopkins University, Baltimore, MD; and D. Waugh and C. Orbe

Recorded Presentation

11:00 AM

8.3

Contribution of Gravity-Wave Forcing to the Brewer-Dobson Circulation

Kaoru Sato, Univ. of Tokyo, Tokyo, Japan; and S. Hirano

11:15 AM

8.4

Investigations of STE and Transport Pathways near Midlatitude Cyclones using START-08 Aircraft Flight data and the UWNMS

Elliot C. Shiben, Univ. Wisconsin, Madison, WI; and M. L. Büker, M. H. Hitchman, and S. M. Rowe

11:30 AM

8.5

Transport-Radiation Feedbacks of Ozone in the Tropical Tropopause Layer

Edward Joseph Charlesworth, Colorado State University and Froschungszentrum Juelich, Koln, Germany; and T. Birner and J. R. Albers

Recorded Presentation

11:45 AM

8.6

Relative Importance of Mechanisms Governing Interannual Stratosphere to Troposphere Ozone Transport

John R. Albers, University of Colorado, Boulder, CO; and J. Perlwitz, G. N. Kiladis, Z. D. Lawrence, A. H. Butler, T. Birner, G. L. Manney, A. O. Langford, and J. Dias

Recorded Presentation

Lunch (On Your Own)

Women Scientist's Lunch

Location: Columbia (Marriott Portland Downtown Waterfront)

Session 9

Dynamics of Past and Future Climates -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Isla R. Simpson, Univ. of Texas

1:30 PM

9.1

Deciphering Deep Ocean Circulation Changes Between the Present and the Last Glacial Maximum

Malte F. Jansen, The University of Chicago, Chicago, IL

Recorded Presentation

1:45 PM

9.2

Dynamics of Ocean Heat Uptake

Laure Zanna, University of Oxford, Oxford, United Kingdom; and M. Huber, J. Ison, and S. Khatiwala

Recorded Presentation

2:00 PM

9.3

El Niño of 2015 and the End of Global Warming Hiatus: Insights from a Semi-Empirical Model of Global Mean Surface Temperature

Shineng Hu, Yale University, New Haven, CT; and A. Fedorov

Recorded Presentation

2:15 PM

9.4

Atmospheric Dynamics Feedback: Concept and Simulations

Michael P. Byrne, ETH Zürich, Zürich, Switzerland; and T. Schneider

Recorded Presentation

2:30 PM

9.5

Simple Estimates for Polar Amplified Warming

Timothy M. Merlis, McGill Univ., Montreal, Canada; and M. Henry

Recorded Presentation

2:45 PM

9.6

Contraction of the Tropical Precipitation with Global Warming

Aaron Donohoe, APL, Seattle, WA

Recorded Presentation

Session 9

The Polar Vortices & Planetary Waves: Upward Coupling

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Carlos R. Mechoso, Univ. of California

1:30 PM

9.1

Why are Upward EP-Flux and Temperature Positively Skewed in the Stratosphere?

Oliver Watt-Meyer, University of Washington, Seattle, WA; and P. J. Kushner

Recorded Presentation

1:45 PM

9.2

Comparing Extreme Heat Flux Events for Wavenumber 1 and 2

Andreas Miller, MIT, Cambridge, MA; and R. A. Plumb

Recorded Presentation

2:00 PM

9.3

Tropospheric Cooling as a Mechanism for Stratospheric Polar Vortex Disturbances

Thomas S. Ehrmann, Cornell University, Ithaca, NY; and S. J. Colucci

Recorded Presentation

2:15 PM

9.4

Characterizing Stratospheric Polar Vortex Variability with Computer Vision Techniques

Zachary D. Lawrence, New Mexico Institute of Mining and Technology, Socorro, NM; and G. L. Manney

Recorded Presentation

2:30 PM

9.5

Zonal Phase Speed, Wave Propagation into the Stratosphere, and Atmospheric Blocking

Daniela I.V. Domeisen, GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany; and O. Martius and B. Jiménez Esteve

Recorded Presentation

2:45 PM

9.6

Three Types of Synoptic Events and Their Associated Troposphere-Stratosphere Coupling

Hannah E. Attard, University at Albany/SUNY, Albany, NY; and A. L. Lang

Recorded Presentation

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 10

The Polar Vortices & Planetary Waves: Theory

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: R. Alan Plumb, MIT

3:30 PM

10.1

Filamentation and Breakdown of the Southern Polar Vortex

Carlos R. Mechoso, Univ. of California, Los Angeles, CA; and V. J. Garcia, J. Curbelo, A. M. Mancho, and S. Wiggins

Recorded Presentation

3:45 PM

10.2

The Final Warming of the Southern Stratosphere from a Lagrangian Perspective

Jezabel Curbelo, Universidad Autónoma de Madrid, Madrid, Spain; and C. R. Mechoso, V. J. Garcia, A. M. Mancho, S. Wiggins, and C. Niang

4:00 PM

10.3

Formation of 2d and 3d Circulation Responding to Unsteady Wave Forcing in the Middle Atmosphere

Yuki Hayashi, University of Tokyo, Tokyo, Japan; and K. Sato

4:15 PM

10.4

Prolonged Effect of the Stratospheric Pathway in Linking Barents-Kara Sea Sea Ice Variability to the Midlatitude Circulation in a Simplified Model

Pengfei Zhang, Purdue University, West Lafayette, IN; and Y. Wu and K. L. Smith

Recorded Presentation

Session 10

Dynamics of Past and Future Climates -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Timothy M. Merlis, McGill Univ.

3:30 PM

10.1

Influence of Large-Scale Dynamics on the Duration of Midlatitude Precipitation Extremes in Different Climates

Paul A. O'Gorman, Massachusetts Institute of Technology, Cambridge, MA; and J. G. Dwyer

Recorded Presentation

3:45 PM

10.2

Changes in the Mid-Latitude Atmospheric Dynamics in the CESM Large Ensemble

Gudrun Magnusdottir, Univ. of California, Irvine, CA; and Y. Peings

Recorded Presentation

4:00 PM

10.3

How Does the Stratification and Circulation in the Mdilatitude Respond to an Increase in Atmospheric Temperature

Olivier Pauluis, New York Univeristy, New York City, NY

Recorded Presentation

4:15 PM

10.4

On the Reduced North Atlantic Storminess during the Last Glacial Period: The Role of Topography in Shaping Synoptic Eddies

Gwendal Riviere, LMD, Paris, France; and S. Berthou, G. Lapeyre, and M. Kageyama

Recorded Presentation

4:30 PM

10.5

Model Diversity in Future Predicted Circulation Change in the Tropical and Extra-Tropical Pacific, and Their Connection

Isla R. Simpson, Univ. of Texas, Richardson, TX

Recorded Presentation

4:45 PM

10.6

Sensitivity of Stationary Circulations to Global Warming: A First-Baroclinic Mode Theory in a Model Hierarchy

Xavier J. Levine, Yale University, New Haven, CT; and W. R. Boos

Recorded Presentation

Conference Reception

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Lecture 1

Haurwitz lecture

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Gudrun Magnusdottir, Univ. of California

6:00 PM

L1.1

Potential Vorticity Aspects of Tropical Cyclones (Invited Presentation)

Wayne Schubert, Colorado State University, Fort Collins, CO

Recorded Presentation

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 11

Submesoscale Ocean Dynamics -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Ryan P. Abernathey, Columbia University

8:15 AM

11.1

Secondary Circulation at Submesoscale Fronts Due to Vertical Mixing and Surface Gravity Waves

James C. McWilliams, Univ. of California, Los Angeles, CA

Recorded Presentation

8:45 AM

11.2

A Coupled Model of Interior Balanced and Boundary Flows

William K Dewar, Florida State University, Tallahassee, FL; and B. Deremble and E. Johnson

Recorded Presentation

9:00 AM

11.3

Balanced and Unbalanced Motions at a Submesoscale Front

Leah Johnson, APL, Seattle, WA; and C. Lee and E. D'Asaro

Recorded Presentation

9:15 AM

11.4

Numerical Simulations of Mode Water Formation Involving Cabbeling and Frontogenetic Strain at Thermohaline Fronts

Callum James Shakespeare, Australian National University, Acton, Australia; and L. N. Thomas

Recorded Presentation

9:30 AM

11.5

Ekman Suction Enhances Entrainment at Fronts

Daniel Whitt, NCAR, Boulder, CO

Recorded Presentation

9:45 AM

11.6

Submesoscale Topographic Wakes

Kaushik Srinivasan, University of California, Los Angeles, CA; and J. C. McWilliams and J. Molemaker

Recorded Presentation

Session 11

The Polar Vortices & Planetary Waves: Downward Coupling

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Cochairs: Amy Hawes Butler, CIRES/Univ. of Colorado; Edwin P. Gerber, Courant Institute of Mathematical Sciences

8:15 AM

11.1

Arctic Amplification of Stratospheric Variability (Invited Presentation)

Mark P Baldwin, University of Exeter, Exeter, United Kingdom; and T. Birner and B. Ayarzagüena

Recorded Presentation

8:45 AM

11.2

On the Control of the Stratosphere-Troposphere Dynamical Coupling by Finite-amplitude Rossby Waves

Sandro Lubis, University of Chicago, Chicago, IL; and C. S. Y. Huang and N. Nakamura

9:00 AM

11.3

Dynamics of Extreme Negative Planetary Wave Heat Flux Events in an Idealized Model

Etienne Dunn-Sigouin, LDEO/Columbia University, New York, NY; and T. A. Shaw

Recorded Presentation

9:15 AM

11.4

Separating the Tropospheric and Stratospheric Pathways of ENSO

Bernat Jiménez Esteve, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; and D. I. V. Domeisen

Recorded Presentation

9:30 AM

11.5

The Complex Behavior of El NiÃ±o Winter 2015-2016

Natalia Calvo, Universidad Complutense de Madrid, Madrid, Spain; and F. M. Palmeiro, M. Iza, D. Barriopedro, and R. Garcia-Herrera

11.6

Exploring the Relationship Between SST Anomalies in the Northeast Pacific and North Atlantic and the Shape of the Polar Vortex

9:45 AM

11.7

The 2016-2017 Early Season Weak Stratospheric Vortex Event: Precursors and Predictability

Andrea L. Lang, University at Albany, SUNY, Albany, NY; and H. E. Attard and J. L. Blufer

Recorded Presentation

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 12

Submesoscale Ocean Dynamics -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Andrew L. Stewart, University of California

10:30 AM

12.1

New Aspects of Ocean Frontogenesis

Baylor Fox-Kemper, Brown University, Providence, RI; and N. Suzuki and A. Bodner

Recorded Presentation

10:45 AM

12.2

The Dynamical Link between Frontogenesis and Convergence

Roy Barkan, University of California, Los Angeles, CA; and J. C. McWilliams

11:00 AM

12.3

Modulation of Lateral Transport Barriers in the Ocean by Submesoscale Eddies and Inertia-Gravity Waves

Anirban Sinha, Columbia University in the City of New York, New York, NY; and R. P. Abernathey

11:15 AM

12.4

Evaluation of Lagrangian Structure Function Statistics in the Gulf of Mexico

Jenna L. Palmer, Brown University, Providence, RI; and B. Fox-Kemper, R. Barkan, J. M. Choi, A. Bracco, and J. C. McWilliams

Recorded Presentation

11:30 AM

12.5

Submesoscales in the Antarctic Circumpolar Current

John R. Taylor, University of Cambridge, Cambridge, United Kingdom; and S. Bachman, M. Stamper, K. Adams, P. Hosegood, and J. B. Sallee

Recorded Presentation

11:45 AM

12.6

Impact of Submesoscale Structures on Global Climate

Zhan Su, California Institute of Technology, Pasadena, CA; and J. Wang, P. Klein, A. F. Thompson, and D. Menemenlis

Recorded Presentation

Session 12

Sudden Stratospheric Warmings: Drivers and Characteristics

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Daniela I.V. Domeisen, GEOMAR Helmholtz Centre for Ocean Research

10:30 AM

12.1

Orography and SSWs: Which Mountains Matter Most?

Rachel H. White, University of Washington, Seattle, WA; and A. Sheshadri and D. S. Battisti

Recorded Presentation

10:45 AM

12.2

Teleconnection between Madden Julian Oscillation and Sudden Stratospheric Warmings

Wanying Kang, Harvard University, Cambridge, MA; and E. Tziperman

Recorded Presentation

11:00 AM

12.3

Systematic Assessment of Sudden Stratospheric Warming Thresholds

Amy Hawes Butler, CIRES/Univ. of Colorado, Boulder, CO; and E. P. Gerber

Recorded Presentation

11:15 AM

12.4

Defining Sudden Stratospheric Warmings in Climate Models: Accounting for Biases in Model Climatologies

Seok-Woo Son, Seoul National Univ., Seoul, Korea, Republic of (South); and J. Kim, E. P. Gerber, and H. S. Park

11:30 AM

12.5

Does Stratospheric Sudden Warming Occur More Frequently during ENSO Winters Than during ENSO-Neutral Winters?

Kanghyun Song, Seoul National University, Seoul, Korea, Republic of (South); and S. W. Son

Recorded Presentation

11:45 AM

12.6

Understanding the Frequency of SSW Events During La Nina in a Large Ensemble of Integrations from a Chemistry-Climate Model

Israel Weinbegrer, The Hebrew University of Jerusalem, Bet-El, Israel

Recorded Presentation

Lunch (On Your Own)

Session 13

Sudden Stratospheric Warmings: Impacts and Coupling

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Host: 19th Conference on Middle Atmosphere

Chair: Seok-Woo Son, Seoul National Univ.

1:30 PM

13.1

Lower Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events

Patrick Martineau, UCLA, Los Angeles, CA; and G. Chen and S. W. Son

Recorded Presentation

1:45 PM

13.2

Dynamical Coupling Between the Middle Atmosphere and Arctic Sea Ice

Thomas Reichler, University of Utah, Salt Lake City, UT

Recorded Presentation

2:00 PM

13.3

The Relevance of the Stratosphere State Prior to Sudden Stratospheric Warmings in WACCM (Invited Presentation)

Alvaro de la Camara, NCAR, Boulder, CO; and J. R. Albers, T. Birner, R. R. Garcia, P. Hitchcock, D. Kinnison, and A. K. Smith

Recorded Presentation

2:30 PM

13.4

The Downward Influence of Stratospheric Sudden Warmings

Ian White, Hebrew University of Jerusalem, Jerusalem, Israel; and C. I. Garfinkel, E. P. Gerber, and M. Jucker

Recorded Presentation

Session 13

Mesoscale Ocean Dynamics -Part I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Laure Zanna, University of Oxford

1:30 PM

13.1

Ekman Transport in Balanced Currents with Curvature

Jacob O. Wenegrat, Stanford University, Stanford, CA; and L. N. Thomas

Recorded Presentation

1:45 PM

13.2

The Role of Lee Waves for Dissipation of Transient Eddies in the Southern Ocean

Luwei Yang, University of Tasmania, Hobart, Australia; and M. Nikurashin, A. M. Hogg, and B. Sloyan

2:00 PM

13.3

A Stochastic GM Parameterization of Mesoscale Eddy Transport

Ian Grooms, University of Colorado, Boulder, CO; and W. Kleiber

Recorded Presentation

2:15 PM

13.4

The Impact of Eddy Fluxes and Jet-Scale Overturning Circulations on the Mixed Layer Formation in the Indo-Western Pacific Southern Ocean

Qian Li, The Pennsylvania State University, State College, PA; and S. Lee

Recorded Presentation

2:30 PM

13.5

Baroclinic Eddy Fluxes over Continental Slopes: Insights from a Model Inter-Comparison

Yan Wang, University of California, Los Angeles, CA; and A. L. Stewart

Recorded Presentation

2:45 PM

13.6

The Imprint of Beta on Individual Lagrangian Trajectories

Jeffrey J. Early, NorthWest Research Associates, Redmond, WA; and A. M. Sykulski, J. M. Lilly, and S. C. Olhede

19Middle Conference Adjourns

Location: Salon G-I (Marriott Portland Downtown Waterfront)

Coffee Break

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Session 14

Mesoscale Ocean Dynamics -Part II

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Talia Tamarin, Weizmann Institute of Science

3:30 PM

14.1

Reshaping the Antarctic Circumpolar Current Via Antarctic Bottom Water Export

Andrew L. Stewart, University of California, Los Angeles, CA; and A. M. Hogg

Recorded Presentation

3:45 PM

14.2

Scale Dependent Distribution of Kinetic Energy from Surface Drifters in the Gulf of Mexico

Dhruv Balwada, New York University, New York, NY; and J. H. LaCasce and K. Speer

Recorded Presentation

4:00 PM

14.3

Interannual Variability of Global Overturning Circulation Dominated by Pacific Variability

Neil F. Tandon, Environment and Climate Change Canada, Toronto, ON, Canada; and O. A. Saenko, M. A. Cane, and P. J. Kushner

Recorded Presentation

4:15 PM

14.4

Parameterized Mixing in Mesoscale-resolving Global Ocean Models: A Large Eddy Simulation Approach

Brodie C Pearson, Brown University, Providence, RI; and B. Fox-Kemper, S. Bachman, and F. O. Bryan

Recorded Presentation

4:30 PM

14.5

Characterization of Oceanic Turbulence in a Multiple-Scale Model

Bruno Deremble, CNRS, Paris, France; and W. K. Dewar

Recorded Presentation

4:45 PM

14.6

Quantifying Transport by Coherent Lagrangian Vortices

Ryan P. Abernathey, Columbia University, Palisades, NY

Recorded Presentation

Formal Poster Viewing

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Poster Session 3A

Storm Tracks and Jets Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

136

Eddy-Driven Jet Sensitivity to Diabatic Heating in an Idealized GCM

Hugh S Baker, University of Oxford, Oxford, United Kingdom; and T. Woollings and C. O. Mbengue

Handout (2.9 MB)

137

Using the Moist Static Energy Budget to Understand Storm Track Shifts across a Range of Timescales

Pragallva Barpanda, University of Chicago, Chicago, IL; and T. A. Shaw

138

Positive and Negative Eddy Feedbacks Acting on Midlatitude Jet Variability

Loïc Robert, LMD, PARIS, France; and G. Riviere and F. Codron

139

Effect of Mesoscale Oceanic Eddies on Storm Tracks

Alexis Foussard, LMD, Paris, France; and G. Lapeyre and R. Plougonven

140

A Midwinter Minimum in Atlantic Storm Track Intensity in Years of Strong Jet

Hilla Afargan-Gerstman, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

141

A Quasi-steady Baroclinic Eddy with Hypohydrostatic Convection

Tsung-Lin Hsieh, Princeton University, Princeton, NJ; and S. T. Garner and I. M. Held

142

Evaluation of Blocking Indices Using Their Relationship with Temperature Extremes

Pak-Wah Chan, Harvard University, Cambridge, MA; and P. Hassanzadeh and Z. Kuang

143

Eddy Response to Changes in Jet Characteristics

Janni Yuval, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

144

Variability and Long-Term Changes in Upper Tropospheric Jets from Reanalyses: Seasonal and Regional Patterns and Relationships to ENSO

Gloria L. Manney, NorthWest Research Associates & New Mexico Tech, Socorro, NM; and M. I. Hegglin and Z. D. Lawrence

145

Understanding Anomalous Eddy Vorticity Forcing in Pacific-North American Teleconnection Pattern Events

Jie Song, IAP, Beijing, China

146

A Short-Term Negative Eddy Feedback on Midlatitude Jet Variability due to Planetary Wave Reflection

Gwendal Riviere, LMD, Paris, France; and L. Robert and F. Codron

147

The Circumglobal North American Wave Pattern and Its Relation to North American Cold Events

Nili Harnik, Tel Aviv University, Tel Aviv, Israel; and G. Messori, R. Caballero, and S. B. Feldstein

148

Revisiting Causal Links Between the Arctic and Midlatitudes

Marie C. McGraw, Colorado State University, Fort Collins, CO; and E. A. Barnes

150

An Energy Balance Framework Linking Hadley Cell and Storm Track Shifts

Cheikh O. Mbengue, University of Oxford, Oxford, United Kingdom; and T. Schneider

151

Mongolian Mountains Matter Most: The Impacts of Asian Orography on Downstream Atmospheric Circulation and Variability

Rachel H. White, University of Washington, Seattle, WA; and D. S. Battisti and G. H. Roe

152

Propagating Annular Modes: Empirical Orthogonal Functions, Principal Oscillation Patterns, and Timescales

Aditi Sheshadri, Columbia University, New York, NY; and R. A. Plumb

153

Quantifying the Dynamics of the Annular Modes

Pedram Hassanzadeh, Rice Univ., Houston, TX; and Z. Kuang

154

Examination of the Association and Difference between the Atmospheric Rivers and Extratropical Cyclones

Yanjuan Guo, Texas A&M Univ., Corpus Christi, TX

Poster Session 3B

Submesoscale Ocean Dynamics Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

155

Down to Submesoscale in Laboratory Experiments with Optical Altimetry

Yakov Afanasyev, Memorial University of Newfoundland, St. John's, Canada; and Y. Zhang

Handout (4.8 MB)

156

Relative Dispersion in QG and SQG Turbulence

Guillaume Lapeyre, LMD, Paris, France; and A. Foussard and S. Berti

157

Reduced-Order Direct Statistical Simulation of Planetary Boundary-Layer Flows for a Novel Turbulence Model

Joseph M Skitka, Brown University, Providence, RI; and B. Marston and B. Fox-Kemper

158

How Are Phytoplankton Sustained in Subpolar North Atlantic during the Winter?

Farid Karimpour, University of Massachusetts, North Dartmouth, MA; and A. Tandon and A. Mahadevan

159

Evolution of a Front in Turbulent Thermal Wind (TTW) Balance

Matthew N. Crowe, University of Cambridge, Cambridge, United Kingdom; and J. R. Taylor

160

Estimates of Lateral Mixing by Turbulence in Ocean Fronts

Eric D. Skyllingstad, Oregon State University, Corvallis, OR; and R. Samelson

161

Effects of the Submesoscale on the Potential Vorticity Budget of Ocean Mode Waters

Jacob O. Wenegrat, Stanford University, Stanford, CA; and L. N. Thomas, J. Gula, and J. C. McWilliams

162

Subantarctic Mode Water and Pycnocline Ventilation

Benjamin Johnson, North Carolina State Univ., Raleigh, NC; and J. A. Willison and R. He

163

Triadic Instability and Internal Tide Dissipation in Ocean

Océane Richet, Laboratoire D'hydrodynamique, palaiseau, France; and C. Muller

164

Ekman Arrest in a Turbulent Bottom Boundary Layer

Xiaozhou Ruan, California Institute of Technology, Pasadena, CA; and A. F. Thompson and J. R. Taylor

165

Submesoscale Signatures in Shallow Stratified Layers: Observations from the Bay of Bengal

Sanjiv Ramachandran, Univ. of Massachusetts, North Dartmouth, MA; and A. Tandon, J. Mackinnon, A. Lucas, A. Waterhouse, J. Nash, E. Shroyer, A. Mahadevan, R. A. Weller, J. T. Farrar, and R. Pinkel

166

Interaction of Shallow, Salinity-Stratified Fronts with Surface Cooling: Results from Submesoscale-Permitting Simulations

Amit Tandon, Univ. of Massachusetts, North Dartmouth, MA; and S. Ramachandran and A. Mahadevan

Poster Session 3C

Theoretical Advances in AOFD Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

167

The Physics of Inertial Oscillations: Free Motion on a Parabolic Dish

Christopher L. Wolfe, SUNY, Stony Brook, NY, NY

168

Ageostrophic Correction to a New Wave-Vortex Decompostion Method to One-Dimensional Data

Oliver Buhler, New York Univ., New York, NY; and H. Wang

Handout (1.1 MB)

169

Simulations of Barotropic and Baroclinic Waves of the Linearized Shallow Water Equations by Global Scale Models

Ofer Shamir, Hebrew University of Jerusalem, Jerusalem, Israel; and N. Paldor

170

Error Growth Dynamics and Predictability of Mid-Latitude Weather Systems Revealed from High-Resolution Convection-Allowing Global Ensembles

Y. Qiang Sun, Pennsylvania State University, State College, PA; and F. Zhang

171

Budgets of Finite-Amplitude Local Wave Activity of the Wintertime Northern Hemisphere

Clare S.-Y. Huang, University of Chicago, Chicago, IL; and N. Nakamura and S. Lubis

172

The Violation of the Gradient Wind Balance in the Top of Tropical Cyclones

Yair Cohen, JPL, Pasadena, CA; and N. Harnik, E. Heifetz, D. S. Nolan, and F. Zhang

Poster Session 3D

Wave-Mean Interactions Posters

Location: Salon A-E (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

173

Stimulated Imbalance and the Enhancement of Eddy Kinetic Energy Dissipation by Internal Waves

Roy Barkan, University of California, Los Angeles, CA; and K. B. Winters and J. C. McWilliams

174

Spontaneous Gravity Wave Emission in the Differentially Heated Rotating Annulus

Steffen Hien, Goethe University, Frankfurt am Main, Germany; and J. Rolland, S. Borchert, L. Schoon, C. Zülicke, and U. Achatz

175

Surface Gravity Wave Groups Drive "Stokes Pumping" and Radiate Internal Gravity Wave Wakes

Sean Haney, SIO, La Jolla, CA; and W. R. Young

176

Generation of Internal Tidal Beam in Tasman Sea Shaped by Intrusion of Subtropical Front Waters

177

Baroclinic Adjustment and Frictional Control of Storm Tracks

Lenka Novak, University of Reading, Reading, United Kingdom; and M. Ambaum and B. Harvey

178

3-D Mass-weighted Isentropic Time Mean Meridional Circulations

Yuki Kanno, Tohoku University, Sendai, Japan; and T. Iwasaki

179

The Role of Synoptic Waves in the Formation and Maintenance of the Western Hemisphere Circulation Pattern

Xin Tan, Nanjing Univerisity, Nanjing, China; and M. Bao, D. L. Hartmann, and P. Ceppi

180

Projected Phase Preference of the Circumglobal Teleconnection Pattern and Its Link to Future Climate Trends

Dor Sandler, Tel Aviv University, Tel Aviv, Israel; and N. Harnik

182

Interaction between Meso- and Sub-Mesoscale Gravity Waves

Jannik Wilhelm, Goethe Universität, Frankfurt, Germany; and G. Bölöni, T. Akylas, J. Wei, B. Ribstein, R. Klein, and U. Achatz

183

The Response of Water Vapor Wave Activity to Warming

Paul W. Staten, Indiana Univ., Bloomington, IN; and G. Chen and J. Lu

184

Low-Frequency Suppression of Tropospheric Eddy Heat Flux

185

Directly Quantifying the Role of Eddies in Driving Hadley Circulation Expansion in an Idealized GCM

Nicholas A. Davis, Colorado State University, Fort Collins, CO; and T. Birner

186

The Interplay of Model Resolution, Eddy Geometry and Eddy-Mean Flow Feedbacks

Stephanie Waterman, The University of British Columbia, Vancouver, BC, Canada; and K. D. Stewart and J. M. Lilly

187

A Statistical State Dynamics Based Theory for Jet--Wave Coexistence in Beta-Plane Turbulence

Navid Constantinou, SIO, La Jolla, CA; and B. Farrell and P. J. Ioannou

Manuscript (3.2 MB)

Handout (3.5 MB)

188

Seafloor-Intensified Mixing by Surface-Generated Equatorial Waves

Bertrand Delorme, Stanford University, Stanford, CA

189

A Simple Model of Wave-Mean Flow Feedbacks, Poleward Jet Shifts and the Annular Mode

David J. Lorenz, Univ. of Wisconsin, Madison, WI

190

Quantifying the Eddy-Jet Feedback Strength of the Annular Mode in an Idealized GCM and Reanalysis Data

Ding Ma, Columbia University, New York, NY; and P. Hassanzadeh and Z. Kuang

191

Horizontal Scale of Rossby Waves Associated with the Annual Cycle in the Tropical Tropopause Layer

Joowan Kim, Kongju National University, Gongju, Korea, Republic of (South); and W. J. Randel, T. Birner, and M. Abalos

192

On the Role of Extratropical Air-Sea Interaction in the Persistence of the Southern Annular Mode

Yang Zhang, Nanjing University, Nanjing, Jiangsu, China; and B. XIAO, X. Yang, and Y. Nie

193

Nonlinear Wave-Mean Flow Interaction Near the Subtropical Jet

Thomas Birner, Colorado State Univ., Fort Collins, CO

Registration

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 15

Wave-Mean Interactions

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Orli Lachmy, University of Chicago

8:15 AM

15.1

Local Wave Activity and the Onset of Blocking along a Potential Vorticity Front

Noboru Nakamura, Univ. of Chicago, Chicago, IL; and C. S. Y. Huang

8:30 AM

15.2A

Baroclinic and Barotropic Aspects of Wave-Mean Flow Interaction

Lina Boljka, University of Reading, Reading, United Kingdom; and T. G. Shepherd and M. Blackburn

8:45 AM

15.3

Lower Tropospheric Eddy Momentum Fluxes in Idealized Models and Reanalysis Data

Nicholas Lutsko, Princeton University, Princeton, NJ; and I. Held, P. Zurita-Gotor, and A. K. O'Rourke

Recorded Presentation

9:00 AM

15.4

The Interaction between Synoptic-Scale Balanced Flow and a Finite-Amplitude Mesoscale Wave Field throughout All Atmospheric Layers: Weak and Moderately Strong Stratification

Ulrich Achatz, Goethe Universität, Frankfurt am Main, Germany; and B. Ribstein, F. Senf, and R. Klein

Recorded Presentation

9:15 AM

15.5

An Asymptotic Model for the Propagation of Oceanic Internal Tides through Quasi-Geostrophic Flow

Gregory L. Wagner, MIT, Cambridge, MA; and G. Ferrando and W. R. Young

Recorded Presentation

9:30 AM

15.6

The Amplification of Internal Waves in the Ocean Interior

Callum James Shakespeare, Australian National University, Acton, Australia; and A. M. Hogg

Recorded Presentation

9:45 AM

15.7

Gravity Waves Affecting Geostrophic Balanced Motions in a Rotating Shallow Water

Jim Thomas, Courant Institute of Mathematical Sciences, New York, NY; and O. Buhler and K. S. Smith

Coffee Break

Location: Ballroom Foyer (Marriott Portland Downtown Waterfront)

Session 16

Theoretical Advances in AOFD

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Nicholas Lutsko, Princeton University

10:30 AM

16.1

Eddy Diffusivity in Barotropic Turbulence on a β-plane with Quadratic Bottom Drag

Hailu Kong, The University of Chicago, Chicago, IL; and M. F. Jansen

Recorded Presentation

10:45 AM

16.2

Topological Origin of Geophysical Waves

Brad Marston, Brown University, Providence, RI; and P. Delplace and A. Venaille

11:00 AM

16.3

Jets and Vortices in Quasigeostrophic Shallow Water Flow

B. Helen Burgess, University of St Andrews, St Andrews, United Kingdom; and R. K. Scott and D. G. Dritschel

Recorded Presentation

11:15 AM

16.4

Extending Group Velocity Concept to Waves That Leak and Its Applications to Amtospheric Dynamics

Lyubov Chumakova, University of Edinburgh, Edinburgh, United Kingdom; and R. R. Rosales, A. Rzeznik, and E. G. Tabak

11:30 AM

16.5

Recent Advances in the Theory of Available Potential Energy for Salty Oceans and Moist Atmospheres

Rémi Tailleux, University of Reading, Reading, United Kingdom

Recorded Presentation

11:45 AM

16.6

The ω Governor

Jonathan L. Mitchell, Westmont College, Santa Barbara, CA; and S. A. Hill

Recorded Presentation

Lunch (On Your Own)

Session 17

Storm Tracks and Jets I

Location: Salon F (Marriott Portland Downtown Waterfront)

Host: 21st Conference on Atmospheric and Oceanic Fluid Dynamics

Chair: Lei Wang, Univ. of Chicago

1:30 PM

17.1

Tipping Points in Southern Ocean Tracer Ventilation

Andreas Klocker, University of Tasmania, Hobart, Australia

Recorded Presentation

1:45 PM

17.2

Dynamics behind Projected Robust Change in Extreme Extratropical Cyclones Under Global Warming

Edmund K. M. Chang, Stony Brook Univ., Stony Brook, NY

Recorded Presentation

2:00 PM

17.3

Insights on the Midlatitude Hydrological Cycle from Water Vapor Wave Activity Analysis

Jian Lu, PNNL, Richland, WA; and G. Chen, L. R. Leung, K. Sakaguchi, and Q. Yang

Recorded Presentation

2:15 PM

17.4

The Poleward Shift of Storm Tracks Under Climate Change: A Lagrangian Perspective

Talia Tamarin, Weizmann Institute of Science, Rehovot, Israel; and Y. Kaspi

Recorded Presentation

2:30 PM

17.5

Seasonal Sensitivity of the Jet-Stream to Arctic Temperatures

Elizabeth A. Barnes, Colorado State Univ., Fort Collins, CO; and I. R. Simpson

Recorded Presentation

2:45 PM

17.6

Connecting the Energy and Momentum Flux Response to Climate Change Using the Eliassen and Palm Relation

Orli Lachmy, University of Chicago, Chicago, IL; and T. A. Shaw

Recorded Presentation

3:00 PM

17.7

Changes in Available Potential Energy in Northern Hemisphere Summer in Response to Climate Change

Charles G Gertler, MIT, Cambridge, MA; and P. A. O'Gorman

Recorded Presentation

3:15 PM

17.8

The Ultimate Limit of Mid-latitude Day-to-Day Weather Predictability

Fuqing Zhang, Pennsylvania State Univ., Univ. Park, PA; and Y. Q. Sun

Recorded Presentation

21Fluid Conference Adjourns

Location: Salon F (Marriott Portland Downtown Waterfront)

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