The spatial correlation between either two of sea ice cover (SIC), SW, and SHS are highly significant (r sic-sw = − 0.93, r sic-shs = − 0.51, r shs-sw = 0.48, all the correlation coefficients passed the significance test).
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Roles of sea ice and seasonal heat storage in determining the seasonal Arctic surface warming are studied with CMIP6 simulations.
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The sentences
With decreasing heat insulation provided by the ice cover, heat exchange at the air–sea interface increased (− 0.7 to 0.24 W/m 2 /decade; a negative value indicates an increasing trend), which led to the absorption of more heat by the ocean.