Global mapping and monitoring of sea ice production

点击翻译按钮获取中文摘要

Saline water rejected during sea ice formation drive the global overturning circulation. We have developed an algorithm to estimate and provide global mapping of sea ice production from satellite data for the first time. High ice production process in coastal polynyas has been clarified by mooring observations with validation of the algorithm. We have revealed that the region off Cape Darnley is the missing formation area of Antarctic Bottom Water with the second highest ice production in the Antarctica. We have also clarified the strong linkage between variabilities of sea ice production and bottom/intermediate water in the Antarctic Ocean and Okhotsk Sea and suggested weakening of the overturning in these oceans.