Antarctic Sea Ice Extent Reconstructions with Uncertainty Estimates

1905 through 2020 seasonal Antarctic sea ice extent (SIE) reconstructions for the entire Southern Ocean. The dataset includes uncertainty estimates and metadata describing the reconstruction process, provided by the National Aeronautics and Space Administration. Data is available in CSV and NetCDF-3 formats.

Use Cases

• Analyzing long-term trends in Antarctic sea ice extent using the reconstructed SIE time series.
• Quantifying uncertainty in historical sea ice estimates using the provided ensemble data.
• Validating climate model simulations of Southern Ocean cryosphere dynamics.
• Studying seasonal cycles and interannual variability of Antarctic sea ice cover.

Strengths

• Provides a 116-year reconstructed record (1905-2020) of Antarctic sea ice extent.
• Includes uncertainty estimates and ensemble data for statistical analysis.
• Cross-platform presence on Data.gov and NASA EarthData indicates recognized importance.

Limitations

• Column names and exact row counts are not specified in any source description.
• Sources conflict on the last updated date (2026-03-12 on Data.gov vs. 2020-12-31 on NASA EarthData).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Reconstructed from historical records and observational data.

Time Range

1905-2020

Freshness

2026-03 12 21:39:13.330114

Geography

Entire Southern Ocean (Antarctic region)