A11F:
Dynamical Downscaling: Methodology and Assessment Posters


Session ID#: 8419

Session Description:
Dynamical downscaling - the use of regional models to produce high-resolution weather and climate impacts from coarse resolution global climate model (GCM) simulations - has become commonplace on today’s high-end computing systems.  Still, there remains great uncertainty surrounding the design of downscaling approaches and the value added of the high-resolution solutions.  Fundamental questions exist as to whether regional climate models should simply be forced by the coarse resolution GCMs along outer domain boundaries or whether a numerical nudging within the domain is required.  Additionally, global downscaling has evolved as an alternative, using high-resolution cloud-permitting global models to simulate slices in time starting from a coarse resolution GCM simulation.  Similar to regional downscaling experiments, the question of if and how to relax to the coarse resolution simulation remains. This session invites studies of the issues surrounding the design, validation and appropriate use of dynamical downscaling methodologies for regional or global simulations.
Primary Convener:  William Putman, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Conveners:  Robert Ferraro, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, L. Ruby Leung, Pacific Northwest National Laboratory, Richland, WA, United States and William J Gutowski Jr, Iowa State University, Geological & Atmospheric Sciences, Ames, IA, United States
Chairs:  L. Ruby Leung, Pacific Northwest National Laboratory, Richland, WA, United States and William Putman, NASA Goddard Space Flight Center, Greenbelt, MD, United States
OSPA Liaison:  Robert Ferraro, NASA Jet Propulsion Laboratory, Pasadena, CA, United States

Cross-Listed:
  • GC - Global Environmental Change
Index Terms:

1622 Earth system modeling [GLOBAL CHANGE]
1637 Regional climate change [GLOBAL CHANGE]
3337 Global climate models [ATMOSPHERIC PROCESSES]
3355 Regional modeling [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

NASA’s past, current and potential future support in bringing climate projection information to the decision support level (Invited) (61227)
Tsengdar J Lee, NASA Headquarters, Washington, DC, United States and NASA Dynamical Climate Downscaling Project Team
Evaluating Changes in Extreme Weather During the North American Monsoon in the Southwest U.S. Using High Resolution, Convective-Permitting Regional Atmospheric Modeling (Invited) (78654)
Christopher L Castro1, Hsin-I Chang1, Thang Manh Manh Luong2, Timothy M Lahmers1, Megan Jares2, Jeremy Mazon2, Carlos M. Carrillo3 and David K Adams4, (1)University of Arizona, Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (2)University of Arizona, Tucson, AZ, United States, (3)University of Nebraska Lincoln, Lincoln, NE, United States, (4)National Autonomous University of Mexico, Ciudad de Mexico, Mexico
Global Downscaling of the 50-km MERRA2 Reanalysis to 12.5-km with GEOS-5: Methodology (63799)
Max Suarez, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Global downscaling of the 50-km MERRA2 reanalysis to 12.5-km with GEOS-5: Assessment (63754)
William Putman, Max Suarez and Lawrence Takacs, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Impact of Dynamical Downscaling on Model Representation of Land-Atmosphere Coupling Strength (66071)
Dr. Joshua K Roundy, PhD, University of Kansas, Department of Civil, Environmental, and Architectural Engineering, Lawrence, KS, United States, Joseph A Santanello Jr, NASA Goddard Space Flight Center, Code 617, Hydrological Sciences Laboratory, Greenbelt, MD, United States and Craig R Ferguson, University at Albany State University of New York, Albany, NY, United States
Are high-resolution NASA Unified WRF simulations credible tools for predicting extreme precipitation over the Great Plains? (66569)
Hugo Lee1, Duane Edward Waliser1, Jonathan Case2, Takamichi Iguchi3 and Weile Wang4, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)ENSCO, Inc./NASA Marshall Space Flight Center, Huntsville, AL, United States, (3)University of Maryland College Park, College Park, MD, United States, (4)NASA/AMES Research Center, Moffett Field, United States
Effects of resolution and spectral nudging in simulating the effects of wintertime atmospheric river landfalls in the Western US (67530)
Jinwon Kim1, Bin Guan2, Duane Edward Waliser3, Dr. Baijun Tian, Ph.D.4, Robert Ferraro4, Jonathan Case5, Takamichi Iguchi6, Eric M Kemp7, William Putman8, Weile Wang9 and Di Wu8, (1)Korean Meteorological Administration, Seoguipo, South Korea, (2)University of California, Los Angeles, Los Angeles, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (5)ENSCO, Inc./NASA Marshall Space Flight Center, Huntsville, AL, United States, (6)University of Maryland College Park, College Park, MD, United States, (7)NASA Goddard Space Flight Center, Greenbelt, United States, (8)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (9)CSUMB & NASA/AMES, Seaside, CA, United States
Evaluation of Northeast United States Winter Storm Impacts in a Suite of High Resolution Downscaled Climate Model Hindcasts (69739)
Paul C Loikith, Portland State University, Geography, Portland, OR, United States, Duane Edward Waliser, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Jinwon Kim, Korean Meteorological Administration, Seoguipo, South Korea and Robert Ferraro, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Quantifying Information Gain from Dynamic Downscaling Experiments (69933)
Yudong Tian, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Earth System Science Interdisciplinary Center, COLLEGE PARK, MD, United States and Christa D Peters-Lidard, NASA Goddard Space Flight Center, Sciences and Exploration Directorate, Greenbelt, MD, United States
Impacts of Lateral-Boundary-Condition Errors on Regional Climate Downscaling: Lessons Learned from the NASA Downscaling Project (73765)
Weile Wang1, Takamichi Iguchi2, Jonathan Case3, Eric M Kemp4, William Putman5, Di Wu5, Robert Ferraro6, Christa D Peters-Lidard7 and Ramakrishna R Nemani8, (1)CSUMB & NASA/AMES, Seaside, CA, United States, (2)University of Maryland College Park, College Park, MD, United States, (3)ENSCO, Inc./NASA Marshall Space Flight Center, Huntsville, AL, United States, (4)NASA Goddard Space Flight Center, Greenbelt, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (7)NASA Goddard Space Flight Center, Sciences and Exploration Directorate, Greenbelt, MD, United States, (8)NASA Ames Research Center, Moffett Field, CA, United States
New Computationally Cost-Effective Implementation of Online Nesting for a Regional Model (77791)
Ryuji Yoshida1, Tsuyoshi Yamaura2, Sachiho A. Adachi1, Seiya Nishizawa1, Hisashi Yashiro3, Yousuke Sato4 and Hirofumi Tomita5, (1)RIKEN Advanced Institute for Computational Sciences, Kobe, Japan, (2)RIKEN Center for Computational Science, Kobe, Japan, (3)National Institute for Environmental Studies, Tsukuba, Japan, (4)RIKEN Advanced Institute for Computational Science (AICS), Kobe, Japan, (5)RIKEN, Kobe, Japan
Evaluations of three high-resolution dynamical downscaled ensembles over North America (79911)
Zachary Zobel, University of Illinois at Urbana Champaign, Urbana, IL, United States
Assessment of Two Types of Interior Nudging for High-Resolution Simulations during Oahu, Hawaii's 40-Days and 40-Nights Extreme Precipitation Event (83501)
Christopher Thomas Holloway and Pao-Shin Chu, University of Hawaii at Manoa, Atmospheric Sciences, Honolulu, HI, United States
Evaluation of GCMs Historical Simulations of Monthly and Seasonal Climatology over Bolivia (84079)
Azar Abadi, University of Nebraska Medical Center, Environmental, Agricultural, and Occupational Health, Omaha, United States, Robert James Oglesby, University of Nebraska, Lincol, Lincoln, NE, United States, Clinton M Rowe, University of Nebraska Lincoln, Earth and Atmospheric Sciences, Lincoln, United States and Rachindra Mawalagedara, University of Nebraska-Lincoln, Lincoln, NE, United States

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