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DOI | 10.1029/2019JD030662 |
The Summertime Precipitation Bias in E3SM Atmosphere Model Version 1 over the Central United States | |
Zheng, X.1; Golaz, J. -C.1; Xie, S.1; Tang, Q.1; Lin, W.2; Zhang, M.3; Ma, H. -Y.1; Roesler, E. L.4 | |
2019-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:16页码:8935-8952 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study analyzes the summertime precipitation bias over the Central United States and its relationship to the simulated large-scale environment and the convection scheme in the Energy Exascale Earth System Model Atmosphere Model version 1. This relationship is mainly examined in a set of short-term hindcasts initialized with realistic large-scale conditions for the summer of 2011. Besides the uniform 1 degrees model resolution, we adopt Regionally Refined Meshes to increase the model resolution to 0.25 degrees over the contiguous United States. Additional five-year Atmospheric Model Intercomparison Project simulations are conducted to confirm that the results from the hindcasts are consistent with the climate runs. We find that the summertime dry precipitation bias over the Great Plains and the wet bias over the Rockies cannot be reduced simultaneously by changing resolution or tuning parameters. As for the diurnal cycle, Energy Exascale Earth System Model Atmosphere Model version 1 captures the general diurnal variation of the large-scale moisture transport and the large-scale upward motion over the Central United States. However, the diurnal cycle of precipitation over the Great Plains is out of phase with the diurnal variation of the large-scale environment because the convective precipitation dominates the total precipitation and its diurnal cycle, and it does not directly respond to the local moisture convergence and the large-scale upward motion. These results reemphasize the importance of improving the coupling of the convection to the large-scale environment in reducing the summer precipitation bias over the Central United States in climate models with the resolution of similar to 0.25 degrees. |
英文关键词 | GCM E3SM precipitation convection parameterization |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490762800004 |
WOS关键词 | WARM-SEASON PRECIPITATION ; SOUTHERN GREAT-PLAINS ; DIURNAL CYCLE ; HORIZONTAL RESOLUTION ; CLIMATE SIMULATIONS ; CONVECTIVE INITIATION ; PART I ; COMMUNITY ; RAINFALL ; SYSTEM |
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/186140 |
专题 | 气候变化 |
作者单位 | 1.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA; 2.Brookhaven Natl Lab, Upton, NY 11973 USA; 3.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA; 4.Sandia Natl Labs, Albuquerque, NM USA |
推荐引用方式 GB/T 7714 | Zheng, X.,Golaz, J. -C.,Xie, S.,et al. The Summertime Precipitation Bias in E3SM Atmosphere Model Version 1 over the Central United States[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(16):8935-8952. |
APA | Zheng, X..,Golaz, J. -C..,Xie, S..,Tang, Q..,Lin, W..,...&Roesler, E. L..(2019).The Summertime Precipitation Bias in E3SM Atmosphere Model Version 1 over the Central United States.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(16),8935-8952. |
MLA | Zheng, X.,et al."The Summertime Precipitation Bias in E3SM Atmosphere Model Version 1 over the Central United States".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.16(2019):8935-8952. |
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