Antarctic: Sea-Ice Concentration/Extent/Thickness

Current Antarctic sea ice extent (NSIDC, DMSP SSM/I-SSMIS F-18) in addition to climatology (blue, 1981-2010) and 2 standard deviations from the mean (updated 3/27/2023)
Antarctic sea ice extent anomalies for each year from 1979 to 2023 (satellite-era; NSIDC, DMSP SSM/I-SSMIS). Anomalies are calculated using a 5-day running mean from a climatological baseline of 1981-2010. 2023 is shown using a red line (updated 3/27/2023).
Antarctic sea ice extent anomalies stretching from January 1979 to present day (satellite-era; NSIDC, DMSP SSM/I-SSMIS). Anomalies are calculated using a 5-day running mean from a climatological baseline of 1981-2010 (updated 3/27/2023).
Current regional Antarctic sea ice extents (NSIDC Sea Ice Index v3 : DMSP SSM/I-SSMIS F-18) for 2023 (red line) and for each year through the satellite era (blue [1979] to white [2022] lines). A map of the regions can be found at https://nsidc.org/arcticseaicenews/map-of-antarctica/. Graphic updated 3/27/2023.
Current regional Antarctic sea ice extents (NSIDC Sea Ice Index v3; DMSP SSM/I-SSMIS F-18) in addition to 2 standard deviations from the 1981-2010 mean (updated 3/27/2023).
Current simulated (GIOMAS; Zhang and Rothrock, 2003) sea ice thickness and anomalies (1981-2010 baseline) updated for February 2023. For more information on this ice-ocean reanalysis dataset, see https://tc.copernicus.org/articles/16/1807/2022/.

My visualizations:

  • Arctic Climate Seasonality and Variability
  • Arctic Sea Ice Extent and Concentration
  • Arctic Sea Ice Volume and Thickness
  • Arctic Temperatures
  • Antarctic Sea Ice Extent and Concentration
  • Climate Change Indicators
  • Climate model projections compared to observations in the Arctic
  • Global Sea Ice Extent and Concentration
  • Polar Climate Change Figures
  • Climate Viz of the Month

    • All of the Python code used to generate these figures are available from my GitHub account. Most scripts use data sets that are generated via ftp retrieval.

    *These figures may be freely distributed (with credit). Information about the data can be found on my references page and methods page.