604 オホーツク海におけるメタンハイドレート自然融解量の推計 : 海水中溶存メタン濃度の測定(OS5-1 低環境負荷エネルギーシステム-1)(OS5 環境とエネルギー問題)

概要

論文の詳細を見る
A survey of methane concentration in sea water and sea ice has been carried out near Japan coast in the Sea of Okhotsk since 2000. Anomalous methane concentrations of more than 100 nmol/kg were detected from the water near drift ices on the Japanese coasts which came through off the east shore of Sakhalin in early 2001.On the other hand, undetectable concentration was observed from the water under fast ice which was formed near coast of Japan. Around several ten times richer methane than background concentration was contained in sea water of the sampling depth of 50-200 m in the area of 500 〜 1000 m deep several ten kilometers off the Abashiri coast in Summer 2000-2001. The survey has been conducted in order to estimate the quantity of dissociation of methane hydrate in the Sea of Okhotsk.
一般社団法人日本機械学会の論文
2001-09-25