globalchange  > 影响、适应和脆弱性
DOI: 10.1175/JCLI-D-17-0630.1
Scopus记录号: 2-s2.0-85053046552
论文题名:
Lifetime evolution of outer tropical cyclone size and structure as diagnosed from reanalysis and climate model data
作者: Schenkel B.A.; Lin N.; Chavas D.; Vecchi G.A.; Oppenheimer M.; Brammer A.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期:19
起始页码: 7985
结束页码: 8004
语种: 英语
英文关键词: Climate models ; Climatology ; Hurricanes/typhoons ; Reanalysis data ; Tropical cyclones
Scopus关键词: Climatology ; Decay (organic) ; Hurricanes ; Storms ; Tropics ; Climate forecasts ; Extratropical transition ; High resolution ; Hurricanes/typhoons ; Reanalysis ; Resolution modeling ; Tropical cyclone ; Western North Pacific ; Climate models
英文摘要: The present study examines the lifetime evolution of outer tropical cyclone (TC) size and structure in the North Atlantic (NA) and western North Pacific (WNP). The metric for outer TC size is the radius at which the azimuthal-mean 10-m azimuthal wind equals 8 m s-1 (r8) derived from the NCEP Climate Forecast System Reanalysis (CFSR) and GFDL High-Resolution Forecast-Oriented Low Ocean Resolution model (HiFLOR). Radial profiles of the azimuthal-mean 10-m azimuthal wind are also analyzed to demonstrate that the results are robust across a broad range of wind radii. The analysis shows that most TCs in both basins are characterized by 1) minimum lifetime r8 at genesis, 2) subsequent substantial increases in r8 as the TC wind field expands, 3) peak r8 values occurring near or after the midpoint of the TC lifetime, and 4) nontrivial decreases in r8 and outer winds during the latter part of the TC lifetime. Compared to the NA, WNP TCs are systematically larger up until the end of their lifetime, exhibit r8 growth and decay rates that are larger in magnitude, and are characterized by an earlier onset of lifetime maximum r8 near their lifetime midpoint. In both basins, the TCs exhibiting the largest r8 increases are the longest lived, especially those that traverse the longest distances (i.e., recurving TCs). Finally, analysis of TCs undergoing extratropical transition (ET) shows that NA TCs exhibit negligible changes in r8 during ET, while WNP ET cases either show r8 decreases (CFSR) or negligible changes in r8 (HiFLOR). © 2018 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/110664
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States; Cooperative Institute for Mesoscale Meteorological Studies, School of Meteorology, University of Oklahoma, Norman, OK, United States; Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, United States; Department of Geosciences, Princeton Environmental Institute, Princeton University, Princeton, NJ, United States; NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Woodrow Wilson School of Public and International Affairs, Department of Geosciences, Princeton University, Princeton, NJ, United States; Department of Atmospheric and Environmental Science, University at Albany, State University of New York, Albany, NY, United States

Recommended Citation:
Schenkel B.A.,Lin N.,Chavas D.,et al. Lifetime evolution of outer tropical cyclone size and structure as diagnosed from reanalysis and climate model data[J]. Journal of Climate,2018-01-01,31(19)
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