異なる再解析データを用いた波浪モデルの比較 : 北太平洋

概要

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We compare wave model results (the same model setting except for wind data) in the North Pacific using different wind reanalysis data, ECMWF 40-year Reanalysis (ERA4O) and NCEP/NCAR Reanalysis (NCEP). The wave model results in the central and eastern region of the North Pacific using wind reanalysis data from ERA4O and NCEP correspond well with the observation, respectively. On the other hand, the model results in the Japanese coast do not correspond with the observation worse than those in the central and eastern region of the North Pacific. The monthly mean difference of significant wave height from these wave model results using different reanalysis wind data is significant from the Japanese islands to the Alaska offshore region. Some of monthly correlation of significant wave height between these wave model results shows low correlation region from the Japanese islands to the Alaska offshore region. These suggest the dependency of reanalysis wind data on the wave model in the region from the Japanese islands to the Alaska offshore region.
2012-03-25