Cold Season Performance of the NU-WRF Regional Climate Model in the Great Lakes Region

被引:10
作者
Notaro, Michael [1 ]
Zhong, Yafang [2 ]
Xue, Pengfei [3 ]
Peters-Lidard, Christa [4 ]
Cruz, Carlos [5 ]
Kemp, Eric [5 ]
Kristovich, David [6 ]
Kulie, Mark [7 ]
Wang, Junming [6 ]
Huang, Chenfu [3 ]
Vavrus, Stephen J. [1 ]
机构
[1] Univ Wisconsin, Nelson Inst Ctr Climat Res, Madison, WI USA
[2] Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI 53706 USA
[3] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA
[4] NASA, Goddard Space Flight Ctr, Hydrosphere Biosphere & Geophys Earth Sci Div, Greenbelt, MD USA
[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA
[6] Univ Illinois, Illinois State Water Survey, Champaign, IL USA
[7] NOAA, Natl Environm Satellite Data & Informat Serv, Madison, WI USA
关键词
Inland seas/lakes; Climate variability; Climate models; TURBULENCE CLOSURE-MODEL; SURFACE-WATER TEMPERATURE; EASTERN UNITED-STATES; ICE COVER; WEATHER RESEARCH; SNOWFALL TRENDS; CUMULUS PARAMETERIZATION; MICROPHYSICS SCHEMES; SPATIAL VARIABILITY; HYDRODYNAMIC MODEL;
D O I
10.1175/JHM-D-21-0025.1
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
As Earth's largest collection of freshwater, the Laurentian Great Lakes have enormous ecological and socioeconomic value. Their basin has become a regional hotspot of climatic and limnological change, potentially threatening its vital natural resources. Consequentially, there is a need to assess the current state of climate models regarding their performance across the Great Lakes region and develop the next generation of high-resolution regional climate models to address complex limnological processes and lake-atmosphere interactions. In response to this need, the current paper focuses on the generation and analysis of a 20-member ensemble of 3-km National Aeronautics and Space Administration (NASA)-Unified Weather Research and Forecasting (NU-WRF) simulations for the 2014/15 cold season. The study aims to identify the model's strengths and weaknesses; optimal configuration for the region; and the impacts of different physics parameterizations, coupling to a 1D lake model, time-variant lake-surface temperatures, and spectral nudging. Several key biases are identified in the cold-season simulations for the Great Lakes region, including an atmospheric cold bias that is amplified by coupling to a 1D lake model but diminished by applying the Community Atmosphere Model radiation scheme and Morrison microphysics scheme; an excess precipitation bias; anomalously early initiation of fall lake turnover and subsequent cold lake bias; excessive and overly persistent lake ice cover; and insufficient evaporation over Lakes Superior and Huron. The research team is currently addressing these key limitations by coupling NU-WRF to a 3D lake model in support of the next generation of regional climate models for the critical Great Lakes Basin.
引用
收藏
页码:2423 / 2454
页数:32
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