DOI: 10.1002/grl.50198
论文题名: Horizontal structure of monsoon depressions in the western North Pacific at formation time
作者: Beattie J.C. ; Elsberry R.L.
刊名: Geophysical Research Letters
ISSN: 0094-9271
EISSN: 1944-9002
出版年: 2013
卷: 40, 期: 5 起始页码: 983
结束页码: 987
语种: 英语
英文关键词: monsoon depression
Scopus关键词: Average diameter
; European centre for medium-range weather forecasts
; Monsoon depressions
; Non-circular structures
; Quantitative values
; Tropical cyclone
; Weather distribution
; Western North Pacific
; Hurricanes
; Satellite imagery
; Weather forecasting
; Atmospheric thermodynamics
; gyre
; image resolution
; monsoon
; quantitative analysis
; satellite imagery
; tropical cyclone
; weather forecasting
; wind profile
; Europe
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Tropical cyclones that form from monsoon depressions in the western North Pacific have a larger outer wind structure, and those that form from monsoon gyres tend to be smaller than average. Quantitative values of the horizontal wind structure of monsoon depressions are analyzed from high-resolution European Centre for Medium-Range Weather Forecasts analyses and satellite imagery during 2009. Rather than a circular shape with a diameter of about 1000 km, 80% of the 44 monsoon depressions were elliptical in shape with average diameters of about 812 km north-south and 1098 km east-west. The latitudinal-to-longitudinal ellipticity factor of 0.69 ± 0.14 emphasizes the noncircular structure of these cases, which is important for the weather distribution and likely also for potential tropical cyclone formations. Seventeen tropical cyclones during 2009 formed from monsoon depressions and none from monsoon gyres, which contradicts earlier studies that about 70% form from monsoon gyres. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876787237&doi=10.1002%2fgrl.50198&partnerID=40&md5=909592ef67958182abe29a95b23075a9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6535
Appears in Collections: 气候减缓与适应
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作者单位: Department of Meteorology, Naval Postgraduate School, 589 Dyer Rd., Monterey, CA 93943, United States
Recommended Citation:
Beattie J.C.,Elsberry R.L.. Horizontal structure of monsoon depressions in the western North Pacific at formation time[J]. Geophysical Research Letters,2013-01-01,40(5).