Program: 21st Conference on Planned and Inadvertent Weather Modification (98th American Meteorological Society Annual Meeting)

Program Chairs: Roy Rasmussen , NCAR ; Masataka Murakami , MRI

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Sunday, 7 January 2018

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4:00 PM-5:00 PM: Sunday, 7 January 2018

Plenary Session 1

18th Presidential Forum: Transforming Communication in the Weather, Water, and Climate Enterprise—Focusing on Challenges Facing Our Sciences

Location: Ballroom D (ACC) (Austin, Texas)

4:00 PM

PL1.1

Transforming Communication in the Environmental Sciences: Some Thoughts from a Reluctant Participant (Invited Presentation)

Richard B. Alley, Pennsylvania State Univ., University Park, PA

Tuesday, 9 January 2018

Sunday | Tuesday | Wednesday | Thursday | top

8:30 AM-9:30 AM: Tuesday, 9 January 2018

Session 1

Core Science Talk Reviewing the State of the Art of Cloud Seeding

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Roy Rasmussen, NCAR

8:30 AM

1.1

Present Status of Precipitation Enhancement Research (Core Science Keynote)

Masataka Murakami, Nagoya Univ., Nagoya, Japan

Recorded Presentation

9:30 AM-10:00 AM: Tuesday, 9 January 2018

Session 2

Review of Winter Orographic Cloud Seeding

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Roy Rasmussen, NCAR

9:30 AM

2.1

Wintertime Glaciogenic Orographic Cloud Seeding—A Review

Robert M. Rauber, Univ. of Illinois, Urbana, IL; and B. Geerts, L. Xue, J. French, K. Friedrich, R. M. Rasmussen, S. A. Tessendorf, D. Blestrud, M. L. Kunkel, and S. Parkinson

Recorded Presentation

10:00 AM-10:30 AM: Tuesday, 9 January 2018

Coffee . Break

10:30 AM-12:00 PM: Tuesday, 9 January 2018

Session 3

Winter Orographic Clouds Physical Measurements

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Roy Rasmussen, NCAR

10:30 AM

3.1

An Overview of the SNOWIE Field Campaign

Sarah A. Tessendorf, NCAR, Boulder, CO; and J. French, K. Friedrich, B. Geerts, R. M. Rauber, R. M. Rasmussen, L. Xue, D. Blestrud, M. L. Kunkel, and S. Parkinson

Recorded Presentation

10:45 AM

3.2

Spatiotemporal Evolution of Seeded Orographic Winter Clouds Using High-Resolution Radar Observations

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

Recorded Presentation

11:00 AM

3.3

Multifrequency Radar Reflectivity Analysis of Seeded Orographic Winter Clouds

Bart Geerts, Univ. of Wyoming, Laramie, WY; and C. D. Grasmick, B. Pokharel, K. Friedrich, and S. J. Haimov

Recorded Presentation

11:15 AM

3.4

Microphysical Evolution of Seeded Wintertime Orographic Clouds

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

11:30 AM

3.5

Observations of Supercooled Liquid via Ground-Based Radiometer Measurements and the Implications for Winter Cloud Seeding

Kimberly A. Reed, Radiometrics Corporation, Boulder, CO; and D. Axisa, D. Serke, R. Ware, and T. Wilfong

Recorded Presentation

11:45 AM

3.6

A Validation Method for Flight Cloud Seeding Using Airborne Radar over the Pyeongchang Region

Ki-Ho Chang, KMA, Jeju, Korea, Republic of (South)

Recorded Presentation

1:30 PM-3:30 PM: Tuesday, 9 January 2018

Session 4

Winter Orographic Modeling and Evaluation of Seeding Potential in Wyoming

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Masataka Murakami, MRI

1:30 PM

4.1

Numerical Simulation of Seeding Effect Using a Bin Microphysics Scheme

István Geresdi, Univ. of Pecs, Pécs, Hungary; and L. Xue, R. M. Rasmussen, N. Sarkadi, W. Wu, S. Tessendorf, J. R. French, K. Friedrich, B. Geerts, D. Blestrud, R. M. Rauber, M. L. Kunkel, and S. Parkinson

1:45 PM

4.2

Simulation of an Airborne Cloud Seeding Event during the SNOWIE Field Campaign

Lulin Xue, NCAR, Boulder, ID; and W. Wu, R. M. Rasmussen, S. A. Tessendorf, J. French, K. Friedrich, B. Geerts, R. M. Rauber, D. Blestrud, M. L. Kunkel, and S. Parkinson

Recorded Presentation

2:00 PM

4.3

Assessing the Cloud Seeding Potential over the Laramie Mountains in Wyoming

Frank McDonough, DRI, Reno, NV; and J. F. Mejia and K. N. Shourd

Recorded Presentation

2:15 PM

4.4

Climatological Assessment of Winter Orographic Cloud Seeding Opportunities in Wyoming

Sarah A. Tessendorf, NCAR, Boulder, CO; and C. Weeks, K. Ikeda, R. M. Rasmussen, J. K. Wolff, and L. Xue

Recorded Presentation

2:30 PM

4.5

Evaluation of the Wyoming Randomized Seeding Program Using Ensemble Modeling

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

Recorded Presentation

2:45 PM

4.6

Design of the Ensemble Seeding Simulations for the Randomized Seeding Experiments of the Wyoming Weather Modification Pilot Project

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

Recorded Presentation

3:00 PM

4.7

Synthesis of the Ensemble and Statistical Evaluation of the Wyoming Randomized Seeding Program

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

Recorded Presentation

3:15 PM

4.8

Use of WRF-Hydro to Simulate the Impacts of Cloud Seeding on Streamflow for Water Resource Management in Wyoming

Logan Karsten, NCAR, Boulder, CO; and S. A. Tessendorf, L. Xue, and D. J. Gochis

Recorded Presentation

3:45 PM-5:30 PM: Tuesday, 9 January 2018

Formal Poster Viewing with Coffee Break

Location: Exhibit Hall 3 (ACC) (Austin, Texas)

Poster Session P1

Tuesday Poster Session for the 21st Planned and Inadvertent Weather Modification Conference

Location: Exhibit Hall 3 (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Roy Rasmussen, NCAR

652

Primary Results from the Measurement of Nature Ice Nuclear Particles during 2017 Spring in Beijing, China

Yunfei Che, Key Laboratory for Cloud Physics, Chinese Academy of Meteorological Sciences, Beijing, China; and J. Dang, W. Fang, and Y. Qian

653

Possible Inadvertent Weather Modification of Severe Haze Transported from China to Korea

Seung-Hee Eun, Gangeung-Wonju National Univ., Gangneung, Korea, Republic of (South); and B. G. Kim, W. Zhang, and K. H. Chang

654

Ag Deposition Comparison between WRF Simulation and Observations in the Downwind Area of the Payette Basin

Lulin Xue, NCAR, Boulder, ID; and J. Fisher, S. benner, M. L. Kunkel, D. Blestrud, B. Glenn, S. A. Tessendorf, R. M. Rasmussen, and S. Parkinson

655

The Impacts of AgI Emission, Activation and Scavenging Rates from Ground-Based Generators on Cloud and Precipitation in Payette

Lulin Xue, NCAR, Boulder, ID; and R. M. Rasmussen, S. A. Tessendorf, D. Blestrud, M. L. Kunkel, and S. Parkinson

656

Impact of Terrain Resolution on Precipitation Formation in a Simulated Orographic Cloud

Shaowen (Amy) Chen, Univ. of Illinois, Urbana, IL; and L. Xue and S. Tessendorf

Wednesday, 10 January 2018

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8:30 AM-10:00 AM: Wednesday, 10 January 2018

Joint Session 37

Climate Engineering and Inadvertent Weather Modification

Location: Room 16AB (ACC) (Austin, Texas)

Hosts: (Joint between the 21st Conference on Planned and Inadvertent Weather Modification; and the 10th Symposium on Aerosol-Cloud-Climate Interactions )

Chairs: David L. Mitchell, DRI; Trude Storelvmo, Yale Univ.

8:30 AM

J37.1

Building Confidence and Reducing Risks with Strategic Geoengineering

Jadwiga H. Richter, NCAR, Boulder, CO; and S. Tilmes, B. Kravitz, D. MacMartin, M. Mills, and I. R. Simpson

Recorded Presentation

8:45 AM

J37.2

Stratospheric Sulfur Geoengineering—Benefits and Risks

Alan Robock, Rutgers, The State Univ. of New Jersey, New Brunswick, NJ

Recorded Presentation

9:00 AM

J37.3

Geoengineering beyond SO₂

D. Weisenstein, Harvard Univ., Cambridge, MA; and J. A. Dykema, Z. Dai, C. Golja, F. N. Keutsch, and D. W. Keith

Recorded Presentation

9:15 AM

J37.4

On the Feasibility of Cirrus Cloud Thinning: A Surprising Coincidence

David L. Mitchell, DRI, Reno, NV; and J. Mejia

Recorded Presentation

9:30 AM

J37.5

Cirrus Susceptibility to Changes in Ice Nuclei: Physical Processes, Model Uncertainties, and Measurement Needs

Eric J Jensen, NASA, Moffett Field, CA; and B. Kärcher, R. Ueyama, L. Pfister, T. P. Bui, G. S. Diskin, J. Digangi, S. Woods, R. P. Lawson, K. D. Froyd, and D. Murphy

Recorded Presentation

9:45 AM

J37.6

Solar Experiments with Tropical Cyclone-Permitting GCMs

Gabriel A. Vecchi, Princeton Univ., Princeton, NJ; and J. He, L. W. Horowitz, P. Irvine, and D. W. Keith

10:00 AM-10:30 AM: Wednesday, 10 January 2018

Coffee Break

10:30 AM-12:00 PM: Wednesday, 10 January 2018

Session 5

Recent Developments in Understanding Natural Cloud Processes and Aerosol–Cloud Interactions Relevant to Weather Modification

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Sarah Tessendorf, NCAR

10:30 AM

5.1

Aircraft Observations of Cumulus Microphysics Ranging from the Tropics to Midlatitudes: Implications for a “New” Secondary Ice Process

R. Paul Lawson, Stratton Park Engineering Company Inc., Boulder, CO; and C. gurganus, S. Woods, and R. Bruintjes

Recorded Presentation

Handout (3.5 MB)

10:45 AM

5.2

Is There a Potential for Precipitation Enhancement by Inducing Cumulus Invigoration by Seeding with Pollution-Sized Hygroscopic Aerosol?

William R. Cotton, Colorado State Univ., Fort Collins, CO

Recorded Presentation

11:00 AM

5.3

A Study of Hygroscopic Seeding Agents: Characterization of Relevant CCN Ability and MRI Cloud Chamber Experiments

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

Recorded Presentation

11:15 AM

5.4

Optimization of Aerosol Seeding in Rain Enhancement Strategies (OASIS)

Hannele Korhonen, Finnish Meteorological Institute, Helsinki, Finland; and H. Lihavainen, S. Romakkaniemi, S. Niemelä, H. Vehkamäki, and M. Dal Maso

11:30 AM

5.5

Using Model Analysis and Satellite Data to Assess Seedable Clouds and Precipitation over the UAE Region

Niranjan Kondapalli, Atmosphere and Ocean Research Institute, Univ. of Tokyo, Tokyo, Japan; and K. Suzuki and J. Uchida

Recorded Presentation

11:45 AM

5.6

Outline of "Advanced Study on Precipitation Enhancement in Arid and Semiarid Regions"

Masataka Murakami, Nagoya Univ., Nagoya, Japan

Recorded Presentation

12:00 PM-1:30 PM: Wednesday, 10 January 2018

Lunch Break

1:30 PM-2:30 PM: Wednesday, 10 January 2018

Lecture 2

2018 Horton Lecture

Location: Room 18A (ACC) (Austin, Texas)

1:30 PM

L2.1

Rain Rates from Space: Past & Future (Invited Presentation)

Gerald R. North, Texas A&M Univ., College Station, TX

Recorded Presentation

1:30 PM-3:45 PM: Wednesday, 10 January 2018

Session 6

Applications of Numerical Models to Planned and Inadvertent Weather Modification Topics

Location: Room 16AB (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Lulin Xue, NCAR

1:30 PM

6.1

Hygroscopic Seeding Scheme Incorporated in a Bulk Microphysics Model

Akihiro Hashimoto, MRI, Tsukuba, Japan; and K. Yamashita and M. Murakami

6.2

Numerical Study of Aerosol Effects on Clouds and Rain Enhancement Results

1:45 PM

6.2A

Precipitation Efficiency over the United Arab Emirates Obtained from Numerical Simulations with the CReSS Model

WoonSeon Jung, Institute for Space-Earth Environmental Research, Nagoya Univ., Nagoya, Japan; and M. Murakami and T. Shinoda

Recorded Presentation

6.3

Numerical Simulations of Cloud Structure and Seedability of a Precipitating Stratiform Case in North China

2:15 PM

6.4

The Issue of Chaos Seeding within Experiments Designed to Study Inadvertent Weather Modification

Brian C. Ancell, Texas Tech Univ., Lubbock, TX; and A. Bogusz, M. J. Lauridsen, and J. C. Nauert

Recorded Presentation

2:30 PM

6.5

Modeling the Nonlocal Effects of Summer Growing Season Irrigation in the Great Plains

Allison Bogusz, Texas Tech Univ., Lubbock, TX; and B. Ancell

Recorded Presentation

2:45 PM

6.6

Assessing the Fidelity of the North American Wind Climate and Impacts of Wind Farms Using High-Resolution Modeling

T. J. Shepherd, Cornell Univ., Ithaca, NY; and R. J. Barthelmie and S. C. Pryor

Recorded Presentation

6.7

Examination of the Potential Impacts of Aerosols on Tropical Cyclone Nuri (2008)

3:15 PM

6.8

WRF Modeling of Ice Fog Formation at Fairbanks and Fort Wainwright, Alaska

John Weatherly, U.S. Army Corps of Engineers, Hanover, NH; and M. J. Shaw, S. E. Peckham, T. Douglas, and M. Stuefer

3:30 PM

6.9

Sustainable Land Cover and Terrain Modification to Enhance Convection and Precipitation in the Arid Region of the United Arab Emirates

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

Recorded Presentation

3:45 PM

Cloud Seeding Experiments for Precipitation Augmentation with Aircraft In Situ Measurements - Narihiro Orikasa

Recorded Presentation

3:45 PM-5:30 PM: Wednesday, 10 January 2018

Formal Poster Viewing with Coffee Break

Location: Exhibit Hall 3 (ACC) (Austin, Texas)

Poster Session P2

Wednesday Poster Session for 21st Planned and Inadvertent Weather Modification Conference

Location: Exhibit Hall 3 (ACC) (Austin, Texas)

Host: 21st Conference on Planned and Inadvertent Weather Modification

Chair: Roy Rasmussen, NCAR

Poster 1091 has been moved. New paper number 6.2A

1092

The Development of Upper-Air Thailand Cumulus Modeling (TCM): Case Study—Upper Northern, Central, Eastern, and Northeastern Parts of Thailand

Chanti Detyothin, Ministry of Agriculture and Cooperatives, Bangkok, Thailand; and P. Chantraket and A. Nakburee

Handout (2.0 MB)

Poster 1093 has been moved. New paper number 7.3A

1094

Water Quality Assessment of the Rain Enhancement Program in Thailand

Supinya Boonchouy, Department of Royal Rainmaking and Agricultural Aviation, Bangkok, Thailand; and J. Leenanon, S. Danpradit, N. Chuersuwan, A. Changsuphan, and T. Chanyatham

1095

The Karnataka Rainfall Enhancement Program 2017

Bruce A. Boe, Weather Modification International, Fargo, ND; and V. S. Makitov

1096

Cloud Seeding from Ground Particles Generator for Rain Reduction to 33%

Raden Gunawan Sr., Badan Pengkajian dan Penerapan Teknologi, Tangerang Selatan, Indonesia

1097

Millikan's 1913 Experiments May Have Meteorological Implications

Robert Melland, Denver, CO

Precipitation Enhancement by Aerial Cloud Seeding Using Charged Water Droplets