Figure 1: Annual (a), December-January-February (b), and June-July-August (c) mean of TCF over the Arctic (north of 60°N) from different data. The error bars correspond to the standard deviation (in the interannual variability) of each data (separately for land and the ocean). The abscissa corresponds to TCF over the ocean, and the ordinate corresponds to TCF over land. The inclined long-dashed lines correspond to TCF over land and the ocean (their slope is equal to the land-ocean ratio in the Arctic).