Seasonality of global and Arctic black carbon processes in the Arctic Monitoring and Assessment Programme models.

ABSTRACT: This study quantifies black carbon (BC) processes in three global climate models and one chemistry transport model, with focus on the seasonality of BC transport, emissions, wet and dry deposition in the Arctic. In the models, transport of BC to the Arctic from lower latitudes is the major BC source for this region. Arctic emissions are very small. All models simulated a similar annual cycle of BC transport from lower latitudes to the Arctic, with maximum transport occurring in July. Substantial differences were found in simulated BC burdens and vertical distributions, with Canadian Atmospheric Global Climate Model (CanAM) (Norwegian Earth System Model, NorESM) producing the strongest (weakest) seasonal cycle. CanAM also has the shortest annual mean residence time for BC in the Arctic foll

SUBMITTER: Mahmood R 

PROVIDER: S-EPMC6680174 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature