globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-11-00266.1
Scopus记录号: 2-s2.0-84860135999
论文题名:
Flow, moisture, and thermodynamic variability associated with Gulf of California surges within the North American monsoon
作者: Schiffer N.J.; Nesbitt S.W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期:12
起始页码: 4220
结束页码: 4241
语种: 英语
Scopus关键词: Air mass ; Arizona ; Cyclonic disturbance ; Gulf of California ; Identification method ; Me-xico ; Moisture surges ; Moisture transport ; New Mexico ; North American ; Precipitation distribution ; Reanalysis ; Satellite precipitation ; Surface observation ; Thermodynamic parameter ; Wet and dry ; Atmospheric thermodynamics ; Meteorology ; Moisture ; air mass ; atmospheric moisture ; cyclone ; moisture transfer ; monsoon ; precipitation (climatology) ; storm surge ; thermodynamics ; Arizona ; Gulf of California ; Mexico [North America] ; New Mexico ; Pacific Ocean ; Sierra Madre ; Sierra Madre Occidental ; United States ; Yuma ; Yuma
英文摘要: This study uses an improved surge identification method to examine composites of 29 yr of surface observations and reanalysis data alongside 10 yr of satellite precipitation data to reveal connections between flow, thermodynamic parameters, and precipitation, both within and outside of the North American monsoon (NAM) region, associated with Gulf of California (GoC) moisture surges. The North American Regional Reanalysis (NARR), examined using composites of flow during all detected moisture surges at Yuma, Arizona, and so-called wet and dry surges (those producing anomalously high and low precipitation, respectively, over Arizona and New Mexico), show markedly different flow and moisture patterns that ultimately lead to the differing observed precipitation distributions in the region. Wet surges tend to be associated with moister precursor air masses over the southwestern United States, have a larger contribution of enhanced easterly cross-Sierra Madre Occidental (SMO) moisture transport, and tend to result from a transient cyclonic disturbance tracking across northern Mexico. Dry surges tend to be associated with a more southerly tracking disturbance, are associated with less convection over the SMO, and tend to be associated with a drier presurge air mass over Arizona and New Mexico. © 2012 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52353
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作者单位: Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Recommended Citation:
Schiffer N.J.,Nesbitt S.W.. Flow, moisture, and thermodynamic variability associated with Gulf of California surges within the North American monsoon[J]. Journal of Climate,2012-01-01,25(12)
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