Diminishing seasonality of subtropical water availability in a warmer world dominated by soil moisture-atmosphere feedbacks

HIGHLIGHTS

SUMMARY

    Declining SM reduces evapotranspiration and modulates circulation to enhance moisture convergence and increase P-E in the dry season but not in the wet season. This increase is generally expected to amplify the existing spatial as well as seasonal patterns of P-E, leading to wet regions/seasons getting wetter, and dry regions/seasons getting drier, which is referred to as "wet get wetter, dry get drier" (WWDD) mechanism5-8. While evidence for the seasonal pattern of WWDD, reflected in both precipitation and P-E, has been found at global and regional scales, mainly . . .

     

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