Abstract
The Okhotsk Sea, its sea ice expansion in winter season is sensitively affected by global warming and cooling. Therefore, the environmental change in the Okhotsk Sea would be a good sensitive mirror to reflect the global and the regional climate changes. In order to better understand how the surface environmental change in the Okhotsk Sea had potential influencing the climate change in the East Asia, SSTs were estimated in the southwestern Okhotsk Sea during the past 10 kyr with millennial-centennial time resolution using the long-chain unsaturated alkyl ketones (alkenones) thermometer. A sediment core was collected at Off Shari in the southwestern Okhotsk Sea (MD01-2412, 44.31N, 145E, WD1,225m) during an investigation of IMAGES.
