Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027008 |
Exploring a Variable-Resolution Approach for Simulating Regional Climate in the Rocky Mountain Region Using the VR-CESM | |
Wu, Chenglai1,2; Liu, Xiaohong1; Lin, Zhaohui2,3; Rhoades, Alan M.4; Ullrich, Paul A.4; Zarzycki, Colin M.5; Lu, Zheng1; Rahimi-Esfarjani, Stefan R.1 | |
2017-10-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The reliability of climate simulations and projections, particularly in the regions with complex terrains, is greatly limited by the model resolution. In this study we evaluate the variable-resolution Community Earth System Model (VR-CESM) with a high-resolution (0.125 degrees) refinement over the Rocky Mountain region. The VR-CESM results are compared with observations, as well as CESM simulation at a quasi-uniform 1 degrees resolution (UNIF) and Canadian Regional Climate Model version 5 (CRCM5) simulation at a 0.11 degrees resolution. We find that VR-CESM is effective at capturing the observed spatial patterns of temperature, precipitation, and snowpack in the Rocky Mountains with the performance comparable to CRCM5, while UNIF is unable to do so. VR-CESM and CRCM5 simulate better the seasonal variations of precipitation than UNIF, although VR-CESM still overestimates winter precipitation whereas CRCM5 and UNIF underestimate it. All simulations distribute more winter precipitation along the windward (west) flanks of mountain ridges with the greatest overestimation in VR-CESM. VR-CESM simulates much greater snow water equivalent peaks than CRCM5 and UNIF, although the peaks are still 10-40% less than observations. Moreover, the frequency of heavy precipitation events (daily precipitation >= 25 mm) in VR-CESM and CRCM5 is comparable to observations, whereas the same events in UNIF are an order of magnitude less frequent. In addition, VR-CESM captures the observed occurrence frequency and seasonal variation of rain-on-snow days and performs better than UNIF and CRCM5. These results demonstrate the VR-CESM's capability in regional climate modeling over the mountainous regions and its promising applications for climate change studies. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417195200022 |
WOS关键词 | COMMUNITY ATMOSPHERE MODEL ; WESTERN UNITED-STATES ; ON-SNOW EVENTS ; DYNAMICAL CORE ; INTERCOMPARISON PROJECT ; NORTH-AMERICA ; VERSION 3 ; PART I ; PRECIPITATION ; SENSITIVITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32026 |
专题 | 气候变化 |
作者单位 | 1.Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USA; 2.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Wu, Chenglai,Liu, Xiaohong,Lin, Zhaohui,et al. Exploring a Variable-Resolution Approach for Simulating Regional Climate in the Rocky Mountain Region Using the VR-CESM[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(20). |
APA | Wu, Chenglai.,Liu, Xiaohong.,Lin, Zhaohui.,Rhoades, Alan M..,Ullrich, Paul A..,...&Rahimi-Esfarjani, Stefan R..(2017).Exploring a Variable-Resolution Approach for Simulating Regional Climate in the Rocky Mountain Region Using the VR-CESM.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(20). |
MLA | Wu, Chenglai,et al."Exploring a Variable-Resolution Approach for Simulating Regional Climate in the Rocky Mountain Region Using the VR-CESM".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.20(2017). |
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