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Figure 3: Normalized pattern statistics showing differences among different observational and reanalyses TCF spatial distribution (the reference data is surface-derived data EECRA) over the entire Arctic (a, d, g, j), only land (b, e, h, k), and only the ocean (c, f, i, l) for annual means (a, b, c), December-January-February (DJF) means (d, e, f), June-July-August (JJA) means (g, h, i), and seasonal differences (JJA-DJF) (j, k, l). The radial distances from the origin are proportional to the spatial standard deviation (SSTD) of each data (normalized to EECRA SSTD). The spatial correlation between EECRA and other data is given by the azimuthal position. Acronyms are the same as for Figure 1.