Fig. 1: Observed and Control experiment (without sea ice assimilation) sea ice concentration (SIC) and their differences in the Arctic (2004–2023 average). | npj Climate and Atmospheric Science

Fig. 1: Observed and Control experiment (without sea ice assimilation) sea ice concentration (SIC) and their differences in the Arctic (2004–2023 average).

From: Assimilating summer sea ice thickness enhances predictions of Arctic sea ice and surrounding atmosphere within two months

Fig. 1

The spatial distribution of observed mean SIC on (a) August 1st, (b) August, (c) September. The spatial distribution of mean SIC from the Control experiment on (d) August 1st, (e) August, (f) September. The differences of mean SIC between the Control experiments and observations on (g) August 1st, (h) August, (i) September. Only the differences that exceed the 95% confidence level using a two-tailed Student’s t-test are presented, with the mean absolute error (MAE) indicated in the bottom left corner.

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