Fig. 9: Heat wave response to imposed sea surface temperature forcing. | Nature Communications

Fig. 9: Heat wave response to imposed sea surface temperature forcing.

From: The longest-lasting 2023 western North American heat wave was fueled by the record-warm Atlantic Ocean

Fig. 9

Composite difference of simulated 2023 minus control atmospheric general circulation model (AGCM) experiments during June-July-August for (a) average amplitude of heat waves, b number of heat wave events, c number of heat wave days, and d heat wave duration. Units are percentage changes as defined by the number of events during the simulated 2023 minus control AGCM divided by the total events in the control experiment, and multiplied by 100, such that a 100% increase translates into a doubling of the occurrence.

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