{"id":1133038,"name":"Monthly sea ice extent in the Arctic, decadal average","unit":"million square kilometers","createdAt":"2026-01-15T09:30:52.000Z","updatedAt":"2026-01-15T09:30:52.000Z","coverage":"","timespan":"1-12","datasetId":7323,"shortUnit":"million km²","columnOrder":0,"shortName":"sea_ice_extent_arctic","catalogPath":"grapher/climate/2026-01-14/sea_ice_extent_by_decade/sea_ice_index#sea_ice_extent_arctic","descriptionShort":"Each point represents the monthly average sea ice extent, averaged across all years within the decade.","type":"float","grapherConfigIdETL":"019bc0fe-574c-7b3b-942a-b08283761d37","datasetName":"Sea ice extent in the northern and southern hemispheres by decade","updatePeriodDays":60,"datasetVersion":"2026-01-14","nonRedistributable":false,"display":{"unit":"million square kilometers","shortUnit":"million km²"},"schemaVersion":2,"processingLevel":"minor","presentation":{"titlePublic":"Monthly sea ice extent in the Arctic, decadal average","topicTagsLinks":["Climate Change"]},"dimensions":{"years":{"values":[{"id":1},{"id":2},{"id":3},{"id":4},{"id":5},{"id":6},{"id":7},{"id":8},{"id":9},{"id":10},{"id":11},{"id":12}]},"entities":{"values":[{"id":207954,"name":"1980s","code":null},{"id":207955,"name":"1990s","code":null},{"id":207956,"name":"2000s","code":null},{"id":250657,"name":"2010s","code":null},{"id":370188,"name":"2020s","code":null},{"id":371418,"name":"2025","code":null}]}},"origins":[{"id":10809,"title":"Sea Ice Index","producer":"National Snow and Ice Data Center","citationFull":"Fetterer, F., K. Knowles, W. N. Meier, M. Savoie, and A. K. Windnagel. (2017). Sea Ice Index, Version 3 [Data Set]. Boulder, Colorado USA. National Snow and Ice Data Center. https://doi.org/10.7265/N5K072F8.","attribution":"National Snow and Ice Data Center - Sea Ice Index (2026)","attributionShort":"NSIDC","versionProducer":"Version 4","urlMain":"https://nsidc.org/data/g02135/","urlDownload":"https://noaadata.apps.nsidc.org/NOAA/G02135/seaice_analysis/Sea_Ice_Index_Monthly_Data_by_Year_G02135_v4.0.xlsx","dateAccessed":"2026-01-14","datePublished":"2026-01-14","license":{"name":"CC BY 4.0"}}]}