Program: 22nd Conference on Planned and Inadvertent Weather Modification (100th American Meteorological Society Annual Meeting)

Program Chairs: Sarah Tessendorf , NCAR ; Trude Storelvmo ; Jeffrey French , Univ. of Wyoming

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Monday, 13 January 2020

Monday | Tuesday | Wednesday | Thursday | top

9:00 AM-10:00 AM: Monday, 13 January 2020

Session 1

Understanding key challenges for cloud seeding

Location: 105 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Cochairs: Jeff Frech, University of Wyoming; Katja Friedrich, Univ. of Colorado Boulder

9:00 AM

1.1

A summary of the WMO/WWRP Peer Review Report on Global Precipitation Enhancement Activities

Andrea I. Flossmann Sr., University Clermont Auvergne, Aubière, France; and M. J. Manton Sr., A. Abshaev Sr., R. T. Bruintjes Sr., M. Murakami, T. Prabhakaran Sr., and Z. Yao Sr.

9:15 AM

1.2

Which is Effective to Enhance Rainfall from Mixed-phase Convective Clouds; Hygroscopic or Glaciogenic Seeding?

Masataka Murakami, Nagoya Univ., Nagoya, Japan; and W. Jung, Y. Yoshizumi, T. Shinoda, and M. Kato

9:30 AM

1.3

Challenges in simulating orographic precipitation in natural and seeded clouds

Roy Rasmussen, NCAR, Boulder, CO; NCAR, Boulder, CO; and S. A. Tessendorf and L. Xue

9:45 AM

1.4

Simulating the microphysical properties of orographic clouds in SNOWIE

Lulin Xue, NCAR, Boulder, CO; and R. M. Rasmussen and S. A. Tessendorf

10:00 AM-10:30 AM: Monday, 13 January 2020

AM Coffee Break (Monday)

10:30 AM-12:00 PM: Monday, 13 January 2020

Session 2

Recent field campaigns and modeling studies

Location: 105 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Cochairs: Randy Chase, N/A; Duncan Axisa, Droplet Measurement Technologies

10:30 AM

2.1

Recent In-situ and Radar Measurements of Microphysical Characteristics in Convective Clouds in Desert and Tropical regions

Roelof Bruintjes, NCAR, Boulder, CO; and P. Lawson and S. Woods

10:45 AM

2.2

In Situ Measurements of Aerosol and Cloud Microphysical Properties and Cloud Seeding Experiments over the UAE

Narihiro Orikasa, MRI, Tsukuba, Ibaraki, Japan; and M. Murakami, T. Tajiri, Y. Zaizen, and T. Shinoda

11:00 AM

2.3

Under What Conditions Can We Detect a Microphysical Response in Clouds Seeded with AgI? Lessons from SNOWIE

Jeffrey French, Univ. of Wyoming, Laramie, WY; and M. Hatt, K. Friedrich, S. Tessendorf, L. Xue, R. M. Rauber, B. Geerts, R. M. Rasmussen, D. Blestrud, and M. L. Kunkel

11:15 AM

2.4

Quantifying snowfall from orographic cloud seeding

Katja Friedrich, Univ. of Colorado Boulder, Boulder, CO; and K. Ikeda, S. Tessendorf, J. French, R. M. Rauber, B. Geerts, L. Xue, R. Rasmussen, D. Blestrud, and M. L. Kunkel

11:30 AM

2.5

Simulated seeding impacts in a seeded cloud observed during SNOWIE

Lulin Xue, NCAR, Boulder, CO; and R. M. Rasmussen and S. A. Tessendorf

11:45 AM

2.6

Separating physical impacts from natural variability using piggybacking (master-slave) technique

Wojciech W. Grabowski, NCAR, Boulder, CO

12:00 PM-2:00 PM: Monday, 13 January 2020

Lunch Break (Monday)

2:00 PM-3:00 PM: Monday, 13 January 2020

Joint Session 7

The need for water driving the science of rain and snow: Past, present, and future (Centennial)

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; the 15th Symposium on Societal Applications: Policy, Research and Practice; the 12th Symposium on Aerosol - Cloud - Climate Interactions; and the 33rd Conference on Climate Variability and Change )

Cochairs: Sarah A. Tessendorf, NCAR; Isla R. Simpson, NCAR

2:00 PM

J7.1

Weather and climate modification as a driving force for cloud physics research (Invited Presentation)

Robert M. Rauber, Univ. of Illinois, Urbana, IL

2:15 PM

J7.2

Atmospheric rivers in the context of water cycle and climate change research (Invited Presentation)

L. Ruby Leung, PNNL, Richland, WA

2:30 PM

J7.3

Weather modification research to enhance water supplies in the Western U.S (Invited Presentation)

Dave Matthews, CEO Hydrometdss, LLC, Silverthorne, CO; and D. Reynolds and G. E. Klazura

2:45 PM

Discussion/Q&A

3:00 PM-4:00 PM: Monday, 13 January 2020

Joint Panel Discussion 3

The need for water driving the science of rain and snow: Past, present, and future Panel (Centennial)

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; the 33rd Conference on Climate Variability and Change; the 15th Symposium on Societal Applications: Policy, Research and Practice; and the 12th Symposium on Aerosol - Cloud - Climate Interactions )

Cochairs: Sarah A. Tessendorf, NCAR; Isla R. Simpson, NCAR

Panelist: Roy Rasmussen, NCAR

4:00 PM-6:00 PM: Monday, 13 January 2020

Formal Poster Viewing Reception (Mon)

Tuesday, 14 January 2020

Monday | Tuesday | Wednesday | Thursday | top

8:30 AM-10:00 AM: Tuesday, 14 January 2020

Joint Session 11

History of ice nucleation research and its impact on weather modification (Centennial)

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; and the 12th Symposium on Aerosol - Cloud - Climate Interactions )

Cochairs: Sarah A. Tessendorf, NCAR; Isla R. Simpson, NCAR

8:30 AM

J11.1

Early Research into Artificial Aerosols as Ice Nucleants (Invited Presentation)

Andrew Detwiler, University of North Dakota, Grand Forks, ND; South Dakota School of Mines and Technology, Rapid City, SD

9:00 AM

J11.2

Some Past Research on Cloud Seeding Aerosols and a Future Outlook (Invited Presentation)

Paul J. DeMott, Colorado State Univ., Fort Collins, CO

9:30 AM

J11.3

The Use of in situ Ice Nucleus Measurements in Cloud Seeding Research

Bruce A. Boe, Weather Modification International, Fargo, ND

9:45 AM

J11.4

Ice Nucleation and Weather Modification Researches in the Meteorological Research Institute

Masataka Murakami, MRI, Tsukuba, Japan; Nagoya Univ., Nagoya, Japan; and N. Orikasa, T. Tajiri, and A. Saito

10:00 AM-10:30 AM: Tuesday, 14 January 2020

AM Coffee Break (Tuesday)

10:30 AM-12:00 PM: Tuesday, 14 January 2020

Session 3

Natural characteristics and seedability of clouds

Location: 105 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Cochairs: Frank McDonough, NCAR; Matthew D. Cann, Univ. of Colorado Boulder

10:30 AM

3.1

Sources of Updrafts in Orographic Cloud Systems Over the Payette Mountains of Idaho-Results From The SNOWIE Project

Kaylee Heimes, University of Illinois, Urbana, IL; and T. Zaremba, R. M. Rauber, and B. Geerts

10:45 AM

3.2

How do small-scale updrafts such as KH waves affect the seedability of clouds near complex terrain?

bart geerts, University of Wyoming, laramie, WY; and C. D. Grasmick and R. M. Rauber

11:00 AM

3.3

The role of generating cells in natural ice production and supercooled liquid water depletion

Sarah A. Tessendorf, NCAR, Boulder, CO; and K. Ikeda, R. M. Rasmussen, J. French, and R. M. Rauber

11:15 AM

3.4

Evaluation of glaciogenic seeding condition over the mountains in Utah

Binod Pokharel, Utah State Univeristy, Logan, UT; and S. Y. Wang, H. Gu, C. Hasenyager, J. Serago, Z. Rieck, and R. R. Gillies

11:30 AM

3.5

Study on Basic Conception and Assessment Method of Atmospheric Water Resource and Cloud Water Resource

Yuquan Zhou Sr., Chinese Academy of Meteorological Science, Beijing, China; and M. Cai Jr., C. TAN Jr., and Z. HU Sr.

11:45 AM

3.6

Aircraft Observation Research on Macro and Microphysics Characteristics of Continental Cumulus Cloud at Different Development Stages

Cai zhaoxin, Weather Modification Office of Shanxi Province, taiyuan, China

12:00 PM-1:30 PM: Tuesday, 14 January 2020

Lunch Break (Tuesday)

1:30 PM-2:30 PM: Tuesday, 14 January 2020

Session 4

Studies related to hygroscopic seeding

Location: 105 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Cochairs: Lulin Xue, NCAR; Binod Pokharel, University of Wyoming

1:30 PM

4.1

Modelling the precipitation enhancement by hygroscopic cloud seeding in warm and mixed-phase clouds using UCLALES-SALSA

Juha Tonttila, Finnish Meteorological Institute, Kuopio, Finland; and A. Afzalifar, H. Kokkola, and S. Romakkaniemi

1:45 PM

4.2

Seeding Effects on Summertime Mixed-Phase Convective Clouds over the United Arab Emirates Simulated Using CReSS with Simple Hygroscopic Seeding Scheme

Youko Yoshizumi, Institute for Space-Earth Environmental Research, Nagoya Univ., Nagoya, Japan; and M. Murakami, S. Tsujino, K. Hasegawa, A. Sakakibara, A. Hashimoto, T. Shinoda, and M. Kato

2:00 PM

4.3

Simulating aerosol-cloud interactions during hygroscopic seeding

Sisi Chen, NCAR, Boulder, CO; and L. Xue

2:15 PM

4.4

An idealized modeling study to examine the potential impacts of seeding ordinary convective clouds with pollution-sized hygroscopic particles

William R. Cotton, Colorado State Univ., Fort Collins, CO; and R. Walko

2:30 PM-3:00 PM: Tuesday, 14 January 2020

PM Coffee Break (Tuesday)

3:00 PM-4:00 PM: Tuesday, 14 January 2020

Joint Session 23

Aerosol Approaches to Climate Engineering (e.g., results from climate modeling, using analogs such as volcanic eruptions and ship tracks, and development of technology to actually implement solar geoengineering)

Location: 201C (Boston Convention and Exhibition Center)

Hosts: (Joint between the Robert Dickinson Symposium; the 22nd Conference on Planned and Inadvertent Weather Modification; and the 33rd Conference on Climate Variability and Change )

Chair: Alan Robock, Rutgers Univ.

Keynote: Simone Tilmes, NCAR

3:00 PM

J23.1

Current and Future Research Directions of Aerosol Climate Engineering

Simone Tilmes, NCAR, Boulder, CO

3:30 PM

J23.2

The North Atlantic Climate Response to Stratospheric Sulfate Geoengineering

James Hurrell, Colorado State Univ., Fort Collins, CO; and L. Sun and K. dagon

3:45 PM

J23.3

An Evaluation of Cirrus Cloud Thinning through Improved Integration of Satellite Retrievals and Climate Modeling

Yuta Tomii, DRI, Reno, NV; and F. Hosseinpour, J. Mejia, and D. L. Mitchell

4:00 PM-6:00 PM: Tuesday, 14 January 2020

Formal Poster Viewing Reception (Tues)

Joint Poster Session

Location: Hall B1 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; the 33rd Conference on Climate Variability and Change; and the Robert Dickinson Symposium )

Radiative forcing and stratospheric heating by stratospheric aerosols: sensitivity to microphysics, cloud radiative properties, and radiative parameterizations

John A. Dykema, Harvard Univ., Cambridge, MA; and D. W. Keith

Steered stratospheric aerosol injection: aircraft and operation design, economic and environmental impact

I. E. de Vries, Stockholm University, Stockholm, Sweden; and M. Janssens and S. J. Hulshoff

Evaluation of tornadic environments for Japan using multiple data sources and their potential responses under future climate change

Sho Kawazoe, JAMSTEC, Yokohama, Japan; and M. Fujita, S. Sugimoto, Y. Okada, S. Watanabe, and M. Inatsu

Wednesday, 15 January 2020

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8:30 AM-10:00 AM: Wednesday, 15 January 2020

Joint Session 36

Studies related to climate engineering

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; the 33rd Conference on Climate Variability and Change; and the Robert Dickinson Symposium )

Cochairs: Trude Storelvmo, University of Oslo; Simone Tilmes, NCAR

8:30 AM

J36.1

Meteorological Response to CO₂ Sequestration and Storage in Antarctica

Andrea Orton, Purdue University, West Lafayette, IN; and E. M. Agee and M. E. Baldwin

8:45 AM

J36.2

Climate Impacts from Explosive Volcanic Eruptions, Solar Radiation Change and CO2 Increase

Wenchang Yang, Princeton University, Princeton, NJ; and G. A. Vecchi, S. Fueglistaler, L. W. Horowitz, D. Luet, and Á. Muñoz

9:00 AM

J36.3

Geoengineering Model Intercomparison Project (GeoMIP) Progress Report and Future Plans

Alan Robock, Rutgers Univ., New Brunswick, NJ; and B. Kravitz

9:15 AM

J36.4

Consistent weakening of the extratropical storm tracks in an idealized solar geoengineering scenario

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

9:30 AM

J36.5

Sulfate geoengineering impacts on agriculture

Lili Xia, Rutgers Univ., New Brunswick, NJ; and A. Robock, J. Jägermeyr, and S. Tilmes

10:00 AM-10:30 AM: Wednesday, 15 January 2020

AM Coffee Break (Wednesday)

10:30 AM-12:00 PM: Wednesday, 15 January 2020

Panel Discussion 1

Ethics and Governance of Weather Modification and Geoengineering Panel Discussion

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; and the 33rd Conference on Climate Variability and Change )

Cochairs: Sarah A. Tessendorf, NCAR; Isla R. Simpson, NCAR

10:30 AM

PD5.1

The framework and management of a multi-state weather modification agreement (Invited) (Invited Presentation)

Mohammed Mahmoud, Central Arizona Project, Phoenix, AZ

10:45 AM

PD5.2

Governance issues related to solar geoengineering research and deployment (Invited Presentation)

Joshua Horton, Harvard University

11:00 AM

PD5.3

Values and Methodological Decisions in Climate Intervention Research (Invited Presentation)

Monica A Morrison, Indiana University at Bloomington, Bloomington, IN

11:15 AM

Discussion/Q&A

12:00 PM-1:30 PM: Wednesday, 15 January 2020

Lunch Break (Wednesday)

1:30 PM-2:30 PM: Wednesday, 15 January 2020

Joint Session 41

Anthropogenic impacts on clouds, precipitation, and climate

Location: 105 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 22nd Conference on Planned and Inadvertent Weather Modification; and the 12th Symposium on Aerosol - Cloud - Climate Interactions )

Cochairs: Greg McFarquhar, Univ. of Oklahoma; Sisi Chen, NCAR

1:30 PM

J41.1

Contributions of Urban Land and Anthropogenic Aerosols of Houston to Convective intensity and Precipitation of a Deep Convective Storm

Jiwen Fan, PNNL, Richland, WA; and Y. Zhang, Z. Li, and D. Rosenfeld

1:45 PM

J41.2

Substantial Cloud Brightening from Shipping in Subtropical Stratocumulus Clouds

Michael S. Diamond, University of Washington, Seattle, WA; and H. M. Director, A. Possner, and R. Wood

2:00 PM

J41.3

Simulation of Aerosol Indirect Effects on Wintertime Stratocumulus Clouds over Northwestern Pacific

Chung-Kai Wu, National Taiwan University, Taipei, Taiwan; and J. P. Chen

2:15 PM

J41.4

Does the Flooding of a Depression East of the Caspian Sea have an Impact on Local Weather and Climate?

Volker Wulfmeyer, University of Hohenheim, Stuttgart, Germany; and O. Branch, S. Burkitbayev, and M. Seitenov

2:30 PM-3:00 PM: Wednesday, 15 January 2020

PM Coffee Break (Wednesday)

3:00 PM-4:00 PM: Wednesday, 15 January 2020

Joint Session 48

Core Science Keynotes

Location: 208 (Boston Convention and Exhibition Center)

Hosts: (Joint between the 12th Symposium on Aerosol - Cloud - Climate Interactions; and the 22nd Conference on Planned and Inadvertent Weather Modification )

Cochairs: Nicole Riemer, Univ. of Illinois at Urbana-Champaign; Yuan Wang, California Institute of Technology; Sarah A. Tessendorf, NCAR

3:00 PM

J48.1

Modeling of cloud microphysics. Can we do better?

Wojciech W. Grabowski, NCAR, Boulder, CO

3:30 PM

J48.2

How Well do We Understand and Predict Ice Nucleating Particle Sources and Concentrations Around the World?

Paul J. DeMott, Colorado State Univ., Fort Collins, CO; and C. S. McCluskey, G. P. Schill, T. C. J. Hill, Y. Tobo, E. J. T. Levin, J. Creamean, J. Uetake, K. R. Barry, K. A. Moore, K. J. Suski, E. Järvinen, J. K. Kodros, J. R. Pierce, G. R. McMeeking, A. Gettelman, S. M. Burrows, and S. M. Kreidenweis

4:00 PM-6:00 PM: Wednesday, 15 January 2020

Formal Poster Viewing Reception (Wed)

Poster Session

Planned and Inadvertent Weather Modification Posters

Location: Hall B1 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Extreme Precipitation in High-Resolution and Convection-Permitting Earth System Models

Gabriel J. Kooperman, University of Georgia, Athens, GA

Grey-Zone Simulations of Rainfall over UAE and Arabian Peninsula

Sourav Taraphdar, New York Univ. Abu Dhabi, Abu Dhabi, United Arab Emirates; and O. Pauluis and L. Xue

Characteristics of Short- Duration Heavy Rainfall During the Warm Season in Xinjiang

he Qin, Xinjiang Meteorology Observatory, Urumqi, China

Analysis of Microwave Radiometer Data for the La Sal Mountains of Southeastern Utah during the 2017-2018 Winter Season

Stephanie Beall, North American Weather Consultants, Sandy, UT

The role of moisture pathways on natural snowfall production during SNOWIE

Matthew D. Cann, Univ. of Colorado Boulder, Boulder, CO; and K. Friedrich

Serendipitous Radar Observations of Airborne Winter Orographic Cloud Seeding in the Medicine Bow Mountains of Wyoming

Bruce A. Boe, Weather Modification International, Fargo, ND; and D. B. Gilbert

Using WRF to determine the effects of natural sensitivities on orographic precipitation

Nicolas Gordillo, UCAR, Boulder, CO; University of Wisconsin-Madison, Madison, WI; and A. Jensen and L. Xue

Using in situ microphysical observations in Direct Numerical Simulations to study the impact of hygroscopic seeding

Sisi Chen, NCAR, Boulder, CO; and S. A. Tessendorf, L. Xue, and R. Rasmussen

Using Advanced Experimental - Numerical Approaches To Untangle Rain Enhancement (UAE-NATURE): an overview

Lulin Xue, Hua Xin Chuang Zhi Sci. & Tech. LLC, Beijing, China; and P. Tian, H. He, M. huang, X. Jing, Q. Chen, C. Lu, Y. Yin, I. Geresdi, N. Sarkadi, O. Pauluis, A. M. Ravindran, S. Taraphdar, R. M. Rasmussen, W. W. Grabowski, S. A. Tessendorf, C. Liu, S. Chen, and C. Weeks

An investigation of sea salt effects as cloud condensation nuclei (CCN) through implementing sea salt emission and microphysics in a bulk microphysical scheme

Xuancheng Liu, Nanjing University, Nanjing, China; and L. Xue, S. Chen, L. deng, and B. Chen

Study on Observation Diagnosis Assessment of Atmospheric Water Resource and Cloud Water Resource

Miao Cai Jr., Chinese Academy of Meteorological Science, Beijing, Beijing, China; and Y. Zhou Sr., C. TAN Jr., and Z. HU Sr.

Study on Numerical Simulation Assessment of Atmospheric Water Resource and Cloud Water Resource

CHAO TAN Jr., Chinese Academy of Meteorological Science, Beijing, Beijing, China; and Y. Zhou Sr., M. Cai Jr., and Z. HU Sr.

Potential of glaciogenic seeding of cold-season orographic clouds in a warming climate

Thomas A. mazzetti, Univ. of Wyoming, Laramie, WY; and B. geerts, L. Xue, and S. Tessendorf

The Comparison of Royal Rainmaking Beneficial Area Evaluation Methods Effectiveness in Thailand

Arisara Nakburee, Department of Royal Rainmaking and Agricultural Aviation, A.Huahin Prachuabkirikhan, Thailand; and C. Detyothin

Precipitation Evaluation of the North Dakota Cloud Modification Project

Matthew E Tuftedal, University of North Dakota, Grand Forks, ND; and D. Delene

Simulating collisions of charged cloud drops in an ABC flow

Torsten Auerswald, Univ. of Reading, Reading, UK; and M. Ambaum

Adventures in weather modification using intelligent land-use change

Oliver Branch, University of Hohenheim, Stuttgart, Germany; and V. Wulfmeyer

Sensitivity of Cirrus Cloud Parameterizations to Anthropogenic Impacts

Dorothea Ivanova, Embry-Riddle Aeronautical Univ., Prescott, AZ

Thursday, 16 January 2020

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8:30 AM-9:30 AM: Thursday, 16 January 2020

Session 5

Lab studies and new technologies for cloud seeding

Location: 105 (Boston Convention and Exhibition Center)

Host: 22nd Conference on Planned and Inadvertent Weather Modification

Cochairs: Lulin Xue, NCAR; Frank McDonough, DRI

8:30 AM

6.1

Deposition Ice Nucleation on Cloud Seeding Agents

André Welti, Finnish Meteorological Institute, Helsinki, Finland; and A. Laaksonen, A. Alvarez Piedehierro, Y. Viisanen, K. Korhonen, and A. Virtanen

8:45 AM

6.2

CCN and INP Abilities of Hybrid Flare Particles Measured with MRI Continuous Flow Diffusion Chamber-type IN Counter and MRI Cloud Simulation Chamber

Takuya Tajiri, MRI, Tsukuba, Ibaraki, Japan; and N. Orikasa, Y. Zaizen, T. H. Kuo, W. C. Kuo, and M. Murakami

9:00 AM

6.3

Modeling Condensation inside Pi Chamber with Eulerian Bin and Lagrangian Particle-based Microphysics

Wojciech W. Grabowski, NCAR, Boulder, CO

9:15 AM

6.4

Implementation of an Instrumented UAV for Cloud Seeding Operations

Darrel Baumgardner, 2400 Trade Centre Ave, Longmont, CO; and D. Axisa, M. Murakami, and N. Orikasa