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Session Proposal: Identifying, Understanding, and Resolving Earth System Model Biases (AGU25)

A064
Identifying, Understanding, and Resolving Earth System Model Biases

Session ID#: 250532

Session Description:
Weather and climate models continue to suffer from systematic biases, many related to missing or inadequately represented processes caused by shortcomings in Earth System Models (ESMs). It is essential to pinpoint and understand reasons for these ESM biases, and then to improve overall model performance justified on physical grounds. This session aims to bring together researchers/scientists across the community who work on a range of numerical modeling/infrastructure advancements in ESMs. We welcome contributions that: (1) help identify, understand, and resolve biases in ESMs (including but not limited to biases in mean climate, trends, and characteristics/dynamics of specific processes), (2) leverage observing systems to constrain parameterized processes, (3) develop and assess various model physics, and (4) share corresponding research from various testbeds and operational centers. The session echoes the AGU theme this year: “Where Science Connects Us” by fostering better understanding of fundamental issues in cutting-edge models and exploring potential solutions.
Co-Sponsor(s):
  • C - Cryosphere
  • EP - Earth and Planetary Surface Processes
  • H - Hydrology
  • OS - Ocean Sciences
Index Terms:

3319 General circulation [ATMOSPHERIC PROCESSES]
3337 Global climate models [ATMOSPHERIC PROCESSES]
3355 Regional modeling [ATMOSPHERIC PROCESSES]
3364 Synoptic-scale meteorology [ATMOSPHERIC PROCESSES]
Primary Convener:  Michael B Ek, National Center for Atmospheric Research, Boulder, CO, United States
Conveners:  Weiwei Li, University of Illinois at Urbana Champaign, Urbana, United States, Wenyu Zhou, Pacific Northwest National Laboratory, Richland, United States and Kathryn Newman, NSF NCAR, Boulder, United States
 
Analysis of Internal Climate variability over Europe as a benchmark for climate model outputs assessment (1846708)
Herijaona Hani-Roge Hundilida Randriatsara, Charles University, Faculty of Mathematics and Physics, Dept. of Atmospheric Physics, Prague, 180, Czech Republic, Eva Holtanova, Charles University MFF, Atmospheric physics, Prague, Czech Republic and Jiri Miksovsky, Charles University, Faculty of Mathematics and Physics, Department of Atmospheric Physics, Prague, 180, Czech Republic
 
Bias reduction in Earth system models via improved coupling of longwave radiation (1848382)
Lili Manzo, University of California Irvine, Earth System Science, Irvine, United States, Charles S Zender, Univ California Irvine, Department of Earth System Science, Irvine, United States, Erin Thomas, Los Alamos National Laboratory, Theoretical Division, Los Alamos, NM, United States and Andrew Roberts, Lost Alamos National Laboratory, Los Alamos, United States
 
A Copula-based Framework for Emergent Constraints Using MCMC simulations (1863253)
Xu Zhang1, Jinbao Li1, Qianjin Dong2, Cong Gao1 and Hao Chen3, (1)The University of Hong Kong, Hong Kong, China, (2)Wuhan University, State Key Laboratory of Water Resources Engineering and Management, Wuhan, China, (3)Pearl River Hydrology and Water Resources Survey Center, Guangzhou, China
 
The Role of Radiation and Microphysics in Winter Storm Prediction Bias (1873741)
Fatemeh Azizpourshoubi, Marina Astitha and Ummul Khaira, University of Connecticut, School of Civil and Environmental Engineering, Storrs, United States
 
Understanding How Cyclone Biases Contribute to Winter Precipitation Biases over the CONUS in the GFDL SPEAR Model (1903771)
Shan He1, Jaeyeon Lee2, Xiaosong Yang2, Cheng Zheng3 and Edmund K M Chang1, (1)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (2)NOAA, GFDL, Princeton, United States, (3)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, United States
 
Performance and Bias Assessment of Historical Climate Simulations from the GRIMs-NEMO Coupled Earth System Model (1905993)
Seungun Lee1, Rokjin Park2, Sang-Woo Kim1, Seok-Woo Son2, Sang-Wook Yeh3, Changhyun Yoo4, Byung-Kwon Moon5, Jee-Hoon Jeong6, JinHo Yoon7, Baek-Min Kim8, Chang-Keun Song9, Dong-Hyun Cha9, Myong-In Lee10 and Eun-Hyuk Baek6, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)Hanyang University, ERICA, Department of Marine Sciences and Convergent Technology, Ansan, South Korea, (4)Ewha Womans University, Climate and Energy Systems Engineering, Seoul, South Korea, (5)Jeonbuk National University, Division of Science Education, Jeonju, South Korea, (6)Sejong University, Seoul, South Korea, (7)Gwangju Institute of Science and Technology, Department of Environment and Energy Engineering, Gwangju, South Korea, (8)Pukyong National University, Division of Earth Environmental System Sciences Major of Environmental Atmospheric Sciences, Busan, South Korea, (9)Ulsan National Institute of Science and Technology, Ulsan, South Korea, (10)Ulsan National Institute of Science and Technology, Urban and Environmental Engineering, Ulsan, Korea, Republic of (South)
 
Excessive Downward Shortwave Radiation in the HRRR and RAP Weather Models and Testing Strategies for Improvements (1927092)
Stan Benjamin, NOAA Boulder, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, NOAA Global Systems Laboratory, Boulder, United States, Eric James, NOAA Global Systems Laboratory, Boulder, United States, David D Turner, National Oceanic and Atmospheric Administration, Global Systems Laboratory, Boulder, United States, Kelly Balmes, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Kathleen O Lantz, NOAA Global Monitoring Laboratory, Boulder, CO, United States, Anders Jensen, NOAA/GSL, Boulder, United States and JOHN A Augustine, NOAA, ESRL Global Monitoring Division, Boulder, CO, United States
 
Meteorological Assessment of the Unified Forecast System with Chemistry (UFS-Chem) using an Open-Source Model Evaluation Toolkit (1928526)
Liam Thompson1,2, Rebecca Schwantes2, Margaret Bruckner2, Pablo Lichtig3, Chia-Hua Hsu4, Jian He2,5, Congmeng Lyu2,5, Brian C McDonald2 and MELODIES-MONET Development Team, (1)University of Oklahoma, School of Meteorology & Department of Geography and Environmental Sustainability, Norman, United States, (2)NOAA Chemical Sciences Laboratory, Boulder, United States, (3)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (4)University of Colorado Boulder, Mechanical Engineering, Boulder, United States, (5)CU Boulder/CIRES, Boulder, United States
 
Understanding Biases in Simulated Cloud Radiative Effects in E3SMv3 (1930571)
Yuying Zhang, Lawrence Livermore National Laboratory, Livermore, CA, United States, Shaocheng Xie, Lawrence Livermore Nat''l Lab, Livermore, United States, Wuyin Lin, Brookhaven National Laboratory, Upton, NY, United States and Christopher R Terai, Lawrence Livermore National Laboratory, Livermore, United States
 
Diagnosing Land-Atmosphere Coupling Errors in E3SMv3 Using Diurnal Metrics and ARM Observations (1931151)
Shaocheng Xie, Lawrence Livermore National Laboratory, Livermore, United States, Cheng Tao, Lawrence Livermore National Laboratory, Livermore, CA, United States, Minghua Zhang, SUNY Stony Brook, Stony Brook, NY, United States and Wuyin Lin, Brookhaven National Laboratory, Upton, NY, United States
 
Identifying Model Biases in the Arctic Boundary Layer: Insights from Comparing the Community Atmosphere Model to the MOSAiC field campaign (1934472)
Ariel Jacobs1, Julio T Bacmeister2 and Cecilia M Bitz1, (1)University of Washington, Atmospheric and Climate Science, Seattle, United States, (2)NSF National Center for Atmospheric Research, Boulder, United States
 
Intermodel Spread in Indian Ocean Basin Mode Simulation: Roles of Indian Ocean Winds and Pacific Cold Tongue (1939566)
Wenping Jiang, Hohai University, Nanjing, China
 
Evaluation of Diurnal Energy Cycle in NOAA’s Seasonal Forecast System Using DYNAMO Cases (1957179)
Weiwei Li, NSF NCAR, Boulder, United States; DTC, Boulder, United States, Shan Sun, NOAA Global Systems Laboratory, Boulder, United States, Jimy Dudhia, National Center for Atmospheric Research (NCAR), Mesoscale & Microscale Meteorology Laboratory, Boulder, United States and Man Zhang, NOAA, Global Systems Laboratory, University of Colorado/CIRES, Boulder, United States
 
Impact of Central and Eastern Atlantic Niño on SST and precipitation patterns in reanalysis and Earth System Models (1958094)
Allan Cruz Perez, University Corporation for Atmospheric Research, Boulder, United States and Hui Li, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, United States
 
Rapid Evaluation Framework for the CMIP7 Assessment Fast Track (1966087)
Forrest M. Hoffman, Oak Ridge National Laboratory, Computational Sciences & Engineering Division, Oak Ridge, TN, United States, Birgit Hassler, German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, Ranjini Swaminathan, University of Reading, Reading, United Kingdom and REF Delivery Team, obs4MIPs Steering Panel, and CMIP Model Benchmarking Task Team
 
Differences in Radiosonde and Aircraft Moisture Measurements Resulting in Misleading NWP Initialization and Verification (1966835)
David D Turner, NOAA Boulder, Global Systems Laboratory, Boulder, CO, United States, Stan Benjamin, CIRES and NOAA Global Systems Laboratory, Boulder, United States, Timothy J. Wagner, University of Wisconsin-Madison, Space Science and Engineering Center, Madison, United States and Eric James, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, United States
 
Implementation of a Reflectance Derived Sediment Supply Map in the UFS and Analysis of Impacts on AOD and Dust Emission. (1968898)
Emily Faber, University of Maryland Baltimore County, Baltimore, MD, United States, Barry Baker, NOAA Air Resources Laboratory, College Park, United States, Adriana Rocha Lima, University of Maryland Baltimore County, Baltimore, United States and Kerstin Schepanski, Institute of Meteorology, Freie Universität Berlin, Berlin, Germany
 
Influence of Elevated Andes Topography on South American Precipitation Biases (1979526)
Kevin Olivas Ordoñez, University of California Irvine, Earth System Science, Irvine, United States, Dervla Meegan Kumar, University of California, Irvine, Irvine, United States, Gregory Elsaesser, NASA Goddard Institute for Space Studies, New York, United States; Columbia University, New York, United States, Jingbo Wu, Columbia University, New York City, United States and Jane Wilson Baldwin, University of California, Irvine, Department of Earth System Science, Irvine, United States; Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States
 
Quantifying Structural Error in a Reduced Representation of Secondary Organic Aerosol Condensation Microphysics (1980419)
Duncan Quevedo, University of California Berkeley, Civil and Environmental Engineering, Berkeley, United States, Jeffrey Johnson, Cohere Consulting, Seattle, United States, Matthew Dawson, National Center for Atmospheric Research, Boulder, United States, Nicole Riemer, University of Illinois at Urbana-Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Laura Fierce, Pacific Northwest National Laboratory, Richland, United States and Benjamin Murphy, Unaffiliated, Raleigh, United States
 
Do Models Mis-Represent Evaporative Regimes in Arid and Semi-Arid Regions? (1987732)
Lilian Zhu, Harvey Mudd College, Claremont, CA, United States and Isla Simpson, National Center for Atmospheric Research, CGD Laboratory, Boulder, United States
 
Process-Oriented Evaluation of Stationary Rossby Waves and Their Impacts on Extreme Events in Dynamical Downscaling over North America (1990541)
Koichi Sakaguchi1, Seth A McGinnis2, L. Ruby Leung3, Melissa S Bukovsky4, Rachel Rose McCrary5, Ziming Chen3, Chuan-Chieh Chang3 and Yanjie Li6, (1)Pacific Northwest National Laboratory, Atmospheric Sciences and Global Change, Richland, WA, United States, (2)National Center for Atmospheric Research, Boulder, CO, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)University of Wyoming, Haub School for the Environment and Natural Resources, Laramie, United States, (5)National Center for Atmospheric Research, Boulder, United States, (6)CAS Chinese Academy of Sciences, Institute of Atmospheric Physics, Beijng, China
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