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Korean Meteorological Society (한국기상학회)
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An Estimation of the of Tropical Cyclone Size Using COMS Infrared Imagery

천리안 위성 적외영상 자료를 이용한 태풍강풍반경의 산출

  • Lee, Yoon-Kyoung (Ocean Circulation and Climate Research Center, Korea Institute of Ocean and Science Technology) ;
  • Kwon, MinHo (Ocean Circulation and Climate Research Center, Korea Institute of Ocean and Science Technology)
  • 이윤경 (한국해양과학기술원 해양순환.기후연구센터) ;
  • 권민호 (한국해양과학기술원 해양순환.기후연구센터)
  • Received : 2015.08.10
  • Accepted : 2015.08.21
  • Published : 2015.09.30
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Abstract

An algorithm to symmetric radius of $15ms^{-1}$ isotaches of tropical cyclones is suggested using infrared (IR) imagery of geostationary satellite. It is assumed that symmetric tangential winds outside the maximum winds exponentially decrease with the radial distances of the tropical cyclone, which has a clear eye-wall structure. Four parameters for estimation of the tropical cyclone size are center location, maximum sustained wind, radius of the maximum wind, and relaxation coefficient for the decreasing rate with distances of the tropical cyclone. The estimation results are limitedly verified as comparing to surface winds of polar orbiting satellite such as ASCAT data.

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References

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