Fig. 6: Positive cloud feedback over the ocean. | Communications Earth & Environment

Fig. 6: Positive cloud feedback over the ocean.

From: Exceptional atmospheric conditions in June 2023 generated a northwest European marine heatwave which contributed to breaking land temperature records

Fig. 6

a Mean cloud fraction over sea (averaged over the whole atmospheric column and over the northwest shelf) in the regional atmospheric simulation with MHW (ATMostia in full line) and without (ATMclim in dashed line). b Difference in heat flux (positive indicates more heat flux into the ocean) between ATMostia and ATMclim: net heat flux (dark green), SH (red), LH (sea blue), LW (blue), SW (yellow). c Probability of low cloud cover fraction >37.5% for 20 June 20 at 15:00UTC (grey line in a, b) in an ensemble of regional ATMclim started on 19 June. d Same as c but with ATMostia.

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