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DOI | 10.1175/JCLI-D-18-0823.1 |
Circumglobal Response to Prescribed Soil Moisture over North America | |
Teng, Haiyan; Branstator, Grant; Tawfik, Ahmed B.; Callaghan, Patrick | |
2019-07-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:14页码:4525-4546 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A series of idealized prescribed soil moisture experiments is performed with the atmosphere/land stand-alone configuration of the Community Earth System Model, version 1, in an effort to find sources of predictability for high-impact stationary wave anomalies observed in recent boreal summers. We arbitrarily prescribe soil water to have a zero value at selected domains in the continental United States and run 100-member ensembles to examine the monthly and seasonal mean response. Contrary to the lack of a substantial response in the boreal winter, the summertime circulation response is robust, consistent, and circumglobal. While the stationary wave response over the North America and North Atlantic sectors can be well explained by the reaction of a linear dynamical system to heating anomalies caused by the imposed dry land surface, nonlinear processes involving synoptic eddies play a crucial role in forming the remote response in Eurasia and the North Pacific Ocean. A number of other possible factors contributing to the circulation responses are also discussed. Overall, the experiments suggest that, in the boreal summer, soil moisture may contribute to the predictability of high-impact stationary wave events, which can impact regions that are great distances from these source regions. |
英文关键词 | Rossby waves Drought Atmosphere-land interaction Climate prediction Diabatic heating Soil moisture |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000472925900001 |
WOS关键词 | ROSSBY-WAVE PROPAGATION ; BOREAL SUMMER ; ATMOSPHERIC CIRCULATION ; TEMPERATURE VARIABILITY ; PLANETARY-WAVES ; JET-STREAM ; HEAT WAVES ; PART I ; TELECONNECTION ; PREDICTABILITY |
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/184728 |
专题 | 气候变化 |
作者单位 | Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Teng, Haiyan,Branstator, Grant,Tawfik, Ahmed B.,et al. Circumglobal Response to Prescribed Soil Moisture over North America[J]. JOURNAL OF CLIMATE,2019,32(14):4525-4546. |
APA | Teng, Haiyan,Branstator, Grant,Tawfik, Ahmed B.,&Callaghan, Patrick.(2019).Circumglobal Response to Prescribed Soil Moisture over North America.JOURNAL OF CLIMATE,32(14),4525-4546. |
MLA | Teng, Haiyan,et al."Circumglobal Response to Prescribed Soil Moisture over North America".JOURNAL OF CLIMATE 32.14(2019):4525-4546. |
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