Extended Data Figure 1 : Uncertainties and trends in Antarctic sea-ice concentration over the period 1982–2008.

From: Sea-ice transport driving Southern Ocean salinity and its recent trends

Extended Data Figure 1

a, BA minus CDR merged data. b, NTA minus CDR merged data. c, Decadal trends of the BA sea-ice concentration. Stippled trends are statistically significant (at a 90% confidence level or higher using Student’s t-test). d, Decadal trends of the BA minus NTA data. The thick grey line marks the mean sea-ice edge (1% sea-ice concentration). See Methods for details.