Weaker land-atmosphere coupling in global storm-resolving simulation.

ABSTRACT: The debate on the sign of the soil moisture-precipitation feedback remains open. On the one hand, studies using global coarse-resolution climate models have found strong positive feedback. However, such models cannot represent convection explicitly. On the other hand, studies using km-scale regional climate models and explicit convection have reported negative feedback. Yet, the large-scale circulation is prescribed in such models. This study revisits the soil moisture-precipitation feedback using global, coupled simulations conducted for 1 y with explicit convection and compares the results to coarse-resolution simulations with parameterized convection. We find significant differences in a majority of points with feedback that is weaker and dominantly negative with explicit convection. Th

SUBMITTER: Lee J 

PROVIDER: S-EPMC10962945 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature