Local Atmospheric Response to an Open-Ocean Polynya in a High-Resolution Climate Model

摘要: AbstractIn this paper the atmospheric response to an open-ocean polynya in Southern Ocean is studied by analyzing results from and oceanic synoptic-scale resolving Community Earth System Model (CESM) simulation. While coarser-resolution versions of CESM generally do not produce polynyas Ocean, they emerge disappear on interannual time scales This provides ideal opportunity study polynya’s impact overlying surrounding atmosphere. has been pursued here investigating seasonal cycle differences surface air-column variables between nonpolynya years. The indicate significant local impacts turbulent heat fluxes, precipitation, cloud characteristics, radiative fluxes. In particular, it found that clouds over are optically thicker higher than sea ice during Although lower albedo significantly in...