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Korean Meteorological Society (한국기상학회)
권호 표지
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Estimation and Statistical Characteristics of the Radius of Maximum Wind of Tropical Cyclones using COMS IR Imagery

천리안 위성 적외 영상 자료를 이용한 태풍의 최대풍속반경 산출 및 통계적 특성

  • Kwon, MinHo (Ocean Circulation and Climate Research Division, Korea Institute of Ocean Science & Technology)
  • 권민호 (한국해양과학기술원 해양순환기후연구부)
  • Received : 2012.10.16
  • Accepted : 2012.12.02
  • Published : 2012.12.31
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Abstract

The objective methods estimating the radius of maximum wind (RMW) of tropical cyclones (TCs) are discussed using infraed (IR) imagery of geostationary satellite, and an alternative method is suggested that can estimate RMW in the TCs having eyes using IR imagery. The RMW-estimating methods are based on the characteristic structure of the eyewall of a tropical cyclone. RMW is dependent upon the radius of the eye and the distance from the center to the top of the most developed convective cloud. In order to test these methods, blackbody brightness temperature of Korean geostationary satellite, COMS (Communication, Ocean, and Meteorological Satellite) IR imagery are utilized in this study. The estimated RMWs are compared with surface winds of ASCAT (Advanced Scatterometer) of a polar orbiting satellite.

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References

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