Extended Data Fig. 10: Contributions of oceanic feedback to precession-forced ocean–continent moisture transport.
From: Warm pool ocean heat content regulates ocean–continent moisture transport
a, Boreal summer (JAS) air pressure at surface (PS) and 850 hPa wind differences between Pmin and Pmax from decoupled experiments with fixed modern SST (CESM-atm-alone experiments). b, The same as a, but for differences of atmospheric moisture transport flux divergence (indicated by P-E, negative values stand for moisture source). Variables in c and d are the same as a and b, respectively, but for differences of the Pmin-minus-Pmax differences (or experiments CESM-dyn-ocn minus CESM-atm-alone), highlighting the role of OHC associated oceanic feedback. e,f, Similar to c, but for evaporation and precipitation, respectively. Yellow and black boxes in a,c are defined by negative and positive anomalies of surface air pressure in c, respectively, and box-averaged values are shown as numbers to quantify the role of oceanic feedback. Similarly, those boxes in b,d–f) are defined by centres of anomalous atmospheric moisture transport flux divergences in d (yellow for source and black for sink). Yellow arrows and symbol in d show the schematic pathways of anomalous moisture transport from source to sink regions due to oceanic feedback, including the mean circulation sketched from vectors in c and contribution of tropical cyclones (similar to Fig. 4e). White shading denotes areas not significant at 95% confidence level of two-tail t-test.
