Relation between Flow of the Amur River and Sea Ice in the Okhotsk Sea

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  • アムール川とオホーツク海の海氷
  • アムールガワ ト オホーツクカイ ノ カイスイ

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Abstract

Trend of the East Saghalien Current with low temperature and low salinity has important effects on the formation of sea ice and the southward drifting of pack ice early in the sea ice season over the western part of the Okhotsk Sea. It is said that the East Saghalien Current is closely connected with the flow of the Amur River which gets supply from the precipitation of the summer monsoon.<BR>In consideration of these relations, the precipitation at Blagoveshchensk and Nikolaevsk na Amure in the summer season, the date of the first pack ice appearance along the east coast of Saghalien, the date of the freezing of sea water at Cape Elizabeth, and the date of sudden drop in sea water density at the coast of Mombetsu were examined to evaluate their correlations, but there were little significant correlations.<BR>From this result it is concluded that point rainfall cannot represent the flux of the Amur River and that the behavior of the East Saghalien Current and the formation of sea ice are largely influenced by meteorological conditions such as air temperature and wind.

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