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Poster TitleInsights in global SOA distributions and radiative forcing from multigenerational chemistry and photolysis processes using the Energy Exascale Earth System Model
First AuthorManish Shrivastava
Topicatmospheric model development
AffiliationNGD atmospheric physics
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Title

Insights in global SOA distributions and radiative forcing from multigenerational chemistry and photolysis processes using the Energy Exascale Earth System Model

Authors

Manish Shrivastava (PNNL), Sijia Lou (PNNL), Richard Easter (PNNL), Hailong Wang (PNNL), Philip Rasch (PNNL), Po-Lun Ma (PNNL), Alla Zelenyuk (PNNL), Yang Yang (PNNL), John Shilling (PNNL), Johannes Schneider (Max Planck), Christiane Schulz (Max Planck), Pedro Campuzano-Jost (CU Boulder), Jose Jimenez (CU Boulder), Qi Zhang (UC Davis), Scot Martin (Harvard), Virendra Ghate (ANL), Manvendra Dubey (LANL), Philip Cameron Smith (LLNL)

Abstract

Secondary organic aerosols (SOA) are large contributors to fine particle mass loadings and number concentrations, and interact with clouds and radiation. Several processes affect the formation, chemical transformation and removal of SOA in the atmosphere. These processes govern the horizontal, vertical and temporal distributions of fine particles and their ability to act as cloud condensation nuclei (CCN). Global models that use simplified treatments of SOA often do not capture the dynamics of SOA formation. Here, we conduct simulations using the Energy Exascale EarthSystem Model (E3SM) global model with a detailed treatment of SOA to investigate how SOA distributions respond to some of the important but uncertain processes. Our primary findings are as follows:

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