globalchange  > 科学计划与规划
DOI: 10.1002/2015GL067478
论文题名:
Examining moisture pathways and extreme precipitation in the U.S. Intermountain West using self-organizing maps
作者: Swales D.; Alexander M.; Hughes M.
刊名: Geophysical Research Letters
ISSN: 0094-9355
EISSN: 1944-9086
出版年: 2016
卷: 43, 期:4
起始页码: 1727
结束页码: 1735
语种: 英语
英文关键词: extreme precipitation ; self-organizing maps
Scopus关键词: Conformal mapping ; Moisture ; Precipitation (meteorology) ; Extreme precipitation ; Extreme precipitation events ; Integrated water vapors ; Pacific Northwest ; Self organizing maps(soms) ; Synoptic conditions ; Temporal relationships ; Transition frequencies ; Self organizing maps ; artificial neural network ; atmospheric modeling ; extreme event ; map ; precipitation (climatology) ; storm track ; synoptic meteorology ; transport process ; water vapor ; Intermountain West ; Pacific Northwest ; United States
英文摘要: Self-organizing maps (SOMs) were used to explore relationships between large-scale synoptic conditions, especially vertically integrated water vapor transport (IVT), and extreme precipitation events in the U.S. Intermountain West (IMW). By examining spatial patterns in the IVT, pathways are identified where moisture can penetrate into the IMW. A substantial number of extreme precipitation events in the IMW are associated with infrequently occurring synoptic patterns. The transition frequency between each of the SOM nodes, which indicate temporal relationships between the patterns, identified two synoptic settings associated with extreme precipitation in the IMW: (1) a landfalling, zonally propagating trough that results in a concentrated IVT band that moves southward as the system moves inland and (2) a southwesterly storm track associated with strong ridging over the coast that results in persistent IVT transport into the Pacific Northwest that can last for several days. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975780449&doi=10.1002%2f2015GL067478&partnerID=40&md5=3522016cc7738722cc1b02e9bc5696f1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10318
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Swales D.,Alexander M.,Hughes M.. Examining moisture pathways and extreme precipitation in the U.S. Intermountain West using self-organizing maps[J]. Geophysical Research Letters,2016-01-01,43(4).
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