cl_maintenanceAndUpdateFrequency

annually

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  • This data set includes weekly (January 1954 to December 2013) and monthly (January 1850 to May 2022) midpoint historical sea ice concentration (0 - 100%) estimates at 1/4 x 1/4 degree spatial resolution for the ocean region around the state of Alaska, USA. This value-added dataset was developed by compiling the below historical data sources into spatially and temporally standardized datasets. Gaps in temporal or spatial resolutions were filled in with spatial and temporal analog month approaches.