Self-Aggregation of Convective Clouds With Interactive Sea Surface Temperature.

ABSTRACT: This study investigates the feedbacks between an interactive sea surface temperature (SST) and the self-aggregation of deep convective clouds, using a cloud-resolving model in nonrotating radiative-convective equilibrium. The ocean is modeled as one layer slab with a temporally fixed mean but spatially varying temperature. We find that the interactive SST decelerates the aggregation and that the deceleration is larger with a shallower slab, consistent with earlier studies. The surface temperature anomaly in dry regions is positive at first, thus opposing the diverging shallow circulation known to favor self-aggregation, consistent with the slower aggregation. But surprisingly, the driest columns then have a negative SST anomaly, thus strengthening the diverging shallow circulation and favo

SUBMITTER: Shamekh S 

PROVIDER: S-EPMC7685139 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature