Relationship between Tropospheric Circulation over the Western North Pacific and Tropical Cyclone Approach/Landfall on Japan

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概要

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• The relationship between large-scale seasonal (June-October) circulation over the western North Pacific, and the frequency of tropical cyclone (TC) approach or landfall on Japan, is examined using the reanalysis datasets (ERA-40(1958-2001) and JRA-25(1979-2004)). The result shows that there are two dominant modes over the western North Pacific; the El Nino Southern Oscillation (ENSO) mode, and a mode that is correlated with the variation of the subtropical high. In years when the subtropical high extends westward from its climatological position and the maximum of the high pressure anomaly is located along the Tropic of Cancer, the frequency of TC approach/landfall on Japan tends to be reduced. In contrary, when the subtropical high retreats eastward, and the maximum of low pressure anomaly is located along the Tropic of Cancer, there is a tendency to have more number of tropical cyclones approach or landfall on Japan.

• 社団法人日本気象学会の論文
• 2007-04-25

著者

• NAKAZAWA Tetsuo

  Meteorological Research Institute, Japan Meteorological Agency

• RAJENDRAN Kavirajan

  CSIR-Centre for Mathematical Modelling & Computer Simulation, National Aerospace Laboratories

• Rajendran Kavirajan

  Csir-center For Mathematical Modeling And Computer Simulation National Aerospace Laboratories

• Rajendran Kavirajan

  Csir-centre For Mathematical Modeling And Computer Simulation National Aerospace Laboratories Bangal

• Nakazawa Tetsuo

  Meteorological Res. Inst. Japan Meteorological Agency

関連論文

• Interannual Variability of Tropical Rainfall Characteristics and the Impact of the Altitude Boost from TRMM PR 3A25 Data(4. Analysis Studies,Precipitation Measurements from Space)
• Life Cycle of Deep Convective Systems over the Eastern Tropical Pacific Observed by TRMM and GOES-W(4. Analysis Studies,Precipitation Measurements from Space)
• Evaluation of vector Winds Observed by NSCAT in the Seas around Japan
• Convection And Water Vapor Activities Along With Tropical Cyclogenesis
• Relationship between Tropospheric Circulation over the Western North Pacific and Tropical Cyclone Approach/Landfall on Japan
• The Thermal Features in the Boreal Subtropical Regions with Its Relationship to the South China Sea Monsoon Onset

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