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Sea Ice Area (SIA) is the total ocean area covered by any amount of ice (0% SIC threshold). Sea Ice Concentration is the fractional coverage of a grid cell that is covered with sea ice. At hemispherical scales, SIE is often reported with units of 10^6 sq km (millions square kilometers).
The Sea-ice index is a product derived from the OSI SAF Global Sea Ice Concentration data, covering both the sea-ice extent and area over the last 40+ years. It provides graphs, data files and an interactive plotting tool to visualise the trends and evolution of sea ice at hemispheric, global and regional scales.
3 dni temu · Our analyses focus primarily on sea ice extent, which is a measurement of the area of ocean where there is at least some sea ice. In the Arctic, the annual minimum sea ice extent occurs in September and the annual sea ice maximum extent occurs in March.
The EUMETSAT OSISAF sea-ice extent and area are computed from three SIC products: The Climate Data Record (CDR), covering Jan 1979 to Dec 2015 (OSI-450) The Interim Climate Data Record (ICDR), starting in Jan 2016, with a 16 days latency (OSI-430-b);
7 maj 2021 · Following the availability of the continuous and consistent extension of the latest OSI SAF sea ice concentration (SIC) climate data record (CDR), the plots on sea ice extent have been updated. They are now based on the second release of the CDR (OSI-450) and its ICDR (OSI-430-b).
The daily Sea Ice Index provides a quick look at Arctic-wide changes in sea ice. It provides consistently processed daily ice extent and concentration images and data since 1979.
14 lis 2018 · Arctic monthly mean sea ice extent (EUMETSAT OSI SAF v2) Published 14 Nov 2018. 1 min read. Sea ice extent (SIE) is defined as the area covered by sea ice, that is the area of ocean having more than 15% Sea Ice Concentration (SIC).
