LONG-TERM WAVE HINDCASTS AND WAVE CLIMATE ANALYSIS BY JRA-55

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  • JRA-55にもとづく長期波浪推算と波候特性の解析
  • JRA-55 ニ モトズク チョウキ ハロウ スイサン ト ハコウトクセイ ノ カイセキ

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Abstract

 This study examined long-term wave hindcasts forced by JRA-55 reanalysis released by Japan Meteorological Agency. The wave hindcasts were performed by new version of WAVEWATCHIII 4.18 with two different configurations, ST2 and ST4 forced by sea surface winds of JRA-55. The mean and extreme significant wave heights show good agreement with observed data by buoys and satellite altimeter. The results of wave hindcasts based on JRA-55 performs better than existing wave reanalysis as ERA-40 and ERA-interim. The extreme value analysis for wave heights are agree with observed data in the mid-latitude except active tropical cyclone regions.

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