The Relation between the Trend of Sea Level Excluding the Effect of Crustal Movements and Sea Surface Temperature around Honshu.

概要

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A trend of oceanic origin sea level change was deduced from tide gauge records for the last 30 years around Honshu. The relation between the trend of oceanic origin sea level and the sea surface temperature was also investigated. The Height Difference Data (results of ground leveling from 1969 to 1998 by the Geographical Survey Institute of Japan) was used to remove the effect of crustal movements from the tide gauge records. Fig. 5 shows the trend of oceanic origin sea level change around Honshu. It was assumed that the Japan Datum of Leveling is stable. The trend of sea level is different east and west of 137°E longitude (see Fig. 2). The average rate of oceanic origin sea level change for western Japan was 2.4 mm year<SUP>-1</SUP>, while it was -3.1 mm year<SUP>-1</SUP> for eastern Japan. This trend of oceanic origin sea level had a good correlation with the trend of the sea surface temperature (see Fig. 9).
日本海洋学会の論文