DOI: 10.1175/JCLI-D-12-00387.1
Scopus记录号: 2-s2.0-84878141969
论文题名: Tropical cloud cluster climatology, variability, and genesis productivity
作者: Hennon C.C. ; Papin P.P. ; Zarzar C.M. ; Michael J.R. ; Adam Caudill J. ; Douglas C.R. ; Groetsema W.C. ; Lacy J.H. ; Maye Z.D. ; Reid J.L. ; Scales M.A. ; Talley M.D. ; Helms C.N.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 10 起始页码: 3046
结束页码: 3066
语种: 英语
Scopus关键词: Eastern north pacific
; Interannual variability
; North Atlantic Ocean
; Sea surface temperatures
; Strong correlation
; Tropical cyclogenesis
; Vertical wind shear
; Western North Pacific
; Atmospheric temperature
; Climatology
; Oceanography
; Productivity
; Regional planning
; Tropics
; cirrus
; climatology
; cloud cover
; cloud microphysics
; cyclogenesis
; data assimilation
; energy balance
; mesoscale meteorology
; sea surface temperature
; synoptic meteorology
; tropical cyclone
; tropical meteorology
; troposphere
; vorticity
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Tropical cloud clusters (TCCs) are traditionally defined as synoptic-scale areas of deep convection and associated cirrus outflow. They play a critical role in the energy balance of the tropics, releasing large amounts of latent heat high in the troposphere. If conditions are favorable, TCCs can develop into tropical cyclones (TCs), which put coastal populations at risk. Previous work, usually connected with large field campaigns, has investigated TCC characteristics over small areas and time periods. Recently, developments in satellite reanalysis and global best track assimilation have allowed for the creation of a much more extensive database of TCC activity. The authors use the TCC database to produce an extensive global analysis of TCCs, focusing on TCC climatology, variability, and genesis productivity (GP) over a 28-yr period (1982-2009). While global TCC frequency was fairly consistent over the time period, with relatively small interannual variability and no noticeable trend, regional analyses show a high degree of interannual variability with clear trends in some regions. Approximately 1600 TCCs develop around the globe each year; about 6.4% of those develop into TCs. The eastern North Pacific Ocean (EPAC) basin produces the highest number of TCCs (per unit area) in a given year, but the western North Pacific Ocean (WPAC) basin has the highest GP (;12%). Annual TCC frequency in some basins exhibits a strong correlation to sea surface temperatures (SSTs), particularly in the EPAC, North Atlantic Ocean, and WPAC. However, GP is not as sensitive to SST, supporting the hypothesis that the tropical cyclogenesis process is most sensitive to atmospheric dynamical considerations such as vertical wind shear and large-scale vorticity. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51934
Appears in Collections: 气候变化事实与影响
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作者单位: University of North Carolina at Asheville, Asheville, NC, United States; University at Albany, State University of New York, Albany, NY, United States; East Carolina University, Greenville, NC, United States; National Oceanic and Atmospheric Administration/National Weather Service, Elko, NV, United States; Air Force Combat Climatology Center, Asheville, NC, United States
Recommended Citation:
Hennon C.C.,Papin P.P.,Zarzar C.M.,et al. Tropical cloud cluster climatology, variability, and genesis productivity[J]. Journal of Climate,2013-01-01,26(10)