DOI: 10.1175/JCLI-D-12-00386.1
Scopus记录号: 2-s2.0-84880694497
论文题名: Spatially inhomogeneous trends of tropical cyclone intensity over the Western North Pacific for 1977-2010
作者: Park D.-S.R. ; Ho C.-H. ; Kim J.-H. ; Kim H.-S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 14 起始页码: 5088
结束页码: 5101
语种: 英语
Scopus关键词: Dynamic variables
; Maximum wind speed
; Sea surface temperature (SST)
; Spatial in-homogeneity
; Spatially inhomogeneous
; Thermodynamic variables
; Tropical cyclone intensity
; Western North Pacific
; Atmospheric temperature
; Spatial distribution
; Thermodynamic properties
; Hurricanes
; data set
; precipitation intensity
; spatial distribution
; trend analysis
; tropical cyclone
; wind direction
; wind velocity
; Japan
; Pacific Ocean
; Pacific Ocean (North)
; Philippine Sea
英文摘要: The spatial distribution of trends in tropical cyclone (TC) intensity over the western North Pacific Ocean (WNP) during the period 1977-2010 was examined using five TC datasets. The spatial distribution of the TC intensity was expressed by seasonally averaged maximum wind speeds in 58 3 58 horizontal grids. The trends showed a spatial inhomogeneity, with a weakening in the tropical Philippine Sea (TP) and a strengthening in southern Japan and its southeastern ocean (SJ). This distribution could be described by TC intensification rate and genesis frequency, with the aid of the climatological direction of TC movement. The increasing intensification rate around the center of the WNP could mostly account for the increasing intensity over the SJ region, while the influence of both intensification rate and local genesis frequency mattered in the TP region because of the effect of the newly generated and less-developed weak TCs on the TC intensity. Thermodynamic variables (e.g., sea surface temperature, potential intensity, and 268C isotherm depth) showed almost homogeneous changes in space, possibly favoring intensification rate and genesis frequency over the entire WNP. However, the decreasing intensification rate and genesis frequency in some tropical regions conflicted with the impact of thermodynamic variables; rather, they were in accord with the impact of dynamic variables (i.e., vorticity and wind shear). In conclusion, the spatially inhomogeneous trends in TC intensity could be explained by considering the thermodynamic and dynamic aspects in combination through intensification rate and genesis frequency. ©2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51776
Appears in Collections: 气候变化事实与影响
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Korea Institute of Ocean Science and Technology, Ansan, Korea Polar Research Institute, Incheon, South Korea; Atmospheric and Oceanic Sciences Program and Geophysical Fluid Dynamics Laboratory, Princeton University, Princeton, New Jersey, United States
Recommended Citation:
Park D.-S.R.,Ho C.-H.,Kim J.-H.,et al. Spatially inhomogeneous trends of tropical cyclone intensity over the Western North Pacific for 1977-2010[J]. Journal of Climate,2013-01-01,26(14)