Modeling the hydroclimatology of the midwestern United States. Part 1: current climate
An ensemble of six 22-year numerical experiments was conducted to evaluate the ability of Regional Climate Model version 3 (RegCM3) to simulate the energy and water budgets of the midwestern United States. RegCM3 was run using two surface physics schemes: Integrated Biosphere Simulator (IBIS) and Bi...
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| Format: | Article |
| Language: | English |
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Springer-Verlag
2016
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| Online Access: | http://hdl.handle.net/1721.1/104878 |
| _version_ | 1811073875931299840 |
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| author | Winter, Jonathan Mark Eltahir, Elfatih A. B. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Winter, Jonathan Mark Eltahir, Elfatih A. B. |
| author_sort | Winter, Jonathan Mark |
| collection | MIT |
| description | An ensemble of six 22-year numerical experiments was conducted to evaluate the ability of Regional Climate Model version 3 (RegCM3) to simulate the energy and water budgets of the midwestern United States. RegCM3 was run using two surface physics schemes: Integrated Biosphere Simulator (IBIS) and Biosphere-Atmosphere Transfer Scheme 1e (BATS1e), and two convective closure assumptions: Fritsch & Chappell (FC80) and Arakawa & Schubert (AS74). Boundary conditions were provided by the National Centers for Environmental Prediction-Department of Energy Reanalysis 2 dataset and the ECHAM5 general circulation model. A companion paper examines the American Midwest under future climate scenarios. Overall, the model that reproduces the observed seasonal cycles of the midwestern United States climate system best is RegCM3 using IBIS and the AS74 convective closure assumption. IBIS simulates shortwave radiation more accurately, while BATS1e simulates longwave radiation more accurately. Summer two-meter air temperature is overestimated by the combination of IBIS and the FC80 convective closure assumption. All models contain a wet bias and overestimate evapotranspiration during the spring. Total runoff, surface runoff, groundwater runoff, and root zone soil moisture are best simulated by RegCM3 using IBIS and the AS74 convective closure assumption. While BATS1e does capture the seasonal cycle of total runoff, gross errors in the partitioning of total runoff between surface runoff and groundwater runoff exist. The seasonal cycle of root zone soil moisture simulated by RegCM3 using IBIS and the AS74 convective closure assumption is dry, but agrees with observations during the summer. The rest of the models underestimate root zone soil moisture. |
| first_indexed | 2024-09-23T09:39:33Z |
| format | Article |
| id | mit-1721.1/104878 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:39:33Z |
| publishDate | 2016 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/1048782022-09-30T16:00:15Z Modeling the hydroclimatology of the midwestern United States. Part 1: current climate Winter, Jonathan Mark Eltahir, Elfatih A. B. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Winter, Jonathan Mark Eltahir, Elfatih A. B. An ensemble of six 22-year numerical experiments was conducted to evaluate the ability of Regional Climate Model version 3 (RegCM3) to simulate the energy and water budgets of the midwestern United States. RegCM3 was run using two surface physics schemes: Integrated Biosphere Simulator (IBIS) and Biosphere-Atmosphere Transfer Scheme 1e (BATS1e), and two convective closure assumptions: Fritsch & Chappell (FC80) and Arakawa & Schubert (AS74). Boundary conditions were provided by the National Centers for Environmental Prediction-Department of Energy Reanalysis 2 dataset and the ECHAM5 general circulation model. A companion paper examines the American Midwest under future climate scenarios. Overall, the model that reproduces the observed seasonal cycles of the midwestern United States climate system best is RegCM3 using IBIS and the AS74 convective closure assumption. IBIS simulates shortwave radiation more accurately, while BATS1e simulates longwave radiation more accurately. Summer two-meter air temperature is overestimated by the combination of IBIS and the FC80 convective closure assumption. All models contain a wet bias and overestimate evapotranspiration during the spring. Total runoff, surface runoff, groundwater runoff, and root zone soil moisture are best simulated by RegCM3 using IBIS and the AS74 convective closure assumption. While BATS1e does capture the seasonal cycle of total runoff, gross errors in the partitioning of total runoff between surface runoff and groundwater runoff exist. The seasonal cycle of root zone soil moisture simulated by RegCM3 using IBIS and the AS74 convective closure assumption is dry, but agrees with observations during the summer. The rest of the models underestimate root zone soil moisture. National Science Foundation (U.S.) (Award EAR-04500341) Martin Family Society of Fellows for Sustainability 2016-10-20T16:41:47Z 2016-10-20T16:41:47Z 2011-09 2010-08 2016-08-18T15:25:28Z Article http://purl.org/eprint/type/JournalArticle 0930-7575 1432-0894 http://hdl.handle.net/1721.1/104878 Winter, Jonathan M., and Elfatih A. B. Eltahir. “Modeling the Hydroclimatology of the Midwestern United States. Part 1: Current Climate.” Climate Dynamics 38.3–4 (2012): 573–593 en http://dx.doi.org/10.1007/s00382-011-1182-2 Climate Dynamics Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Springer-Verlag (outside the USA) application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Winter, Jonathan Mark Eltahir, Elfatih A. B. Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title | Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title_full | Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title_fullStr | Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title_full_unstemmed | Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title_short | Modeling the hydroclimatology of the midwestern United States. Part 1: current climate |
| title_sort | modeling the hydroclimatology of the midwestern united states part 1 current climate |
| url | http://hdl.handle.net/1721.1/104878 |
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