COMPARISON OF ATMOSPHERIC CORRECTION ALGORITHMS FOR DERIVING SEA SURFACE TEMPERATURE AROUND THE KOREAN SEA AREA USING NOAA/AVHRR DATA

  • Yoon, Suk (Satellite Ocean Research Lab., Korea Ocean Research & Development Institute, Earth System Science, YONSEI University) ;
  • Ahn, Yu-Hwan (Satellite Ocean Research Lab., Korea Ocean Research & Development Institute) ;
  • Ryu, Joo-Hyung (Satellite Ocean Research Lab., Korea Ocean Research & Development Institute) ;
  • Won, Joong-Sun (Earth System Science, YONSEI University)
  • Published : 2007.10.31

Abstract

To retrieve Sea Surface Temperature(SST) from NOAA-AVHRR imagery the spilt window atmospheric correction algorithm is generally used. Recently, there have been various new algorithms developed to process these data, namely the variable-coefficient split-window, the R54 transmittance-ratio method, fixed-coefficient nonlinear algorithm, dynamic water vapour (DWV) correction method, Dynamic Water Vapour and Temperature algorithm (DWVT). We used MCSST (Multi-Channel Sea surface temperature) and NLSST(Non linear sea surface temperature) algorithms in this study. The study area is around the Korea sea area (Yellow Sea). We compared and analyzed with various methods by applying each Ocean in-situ data and satellite data. The primary aim of study is to verify and optimize algorithms. Finally, this study proposes an optimized algorithm for SST retrieval.

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