A16. Global to coastal multiscale modeling in the Energy Exascale Earth System Model (E3SM)
| Poster Title | Global to coastal multiscale modeling in the Energy Exascale Earth System Model (E3SM) |
|---|---|
| First Author | Phillip Wolfram (Unlicensed) |
| Topic | ocean/ice model development, land/energy model development, coastal development |
| Affiliation | ICoM ESMD project, coastal waves mini-NGD |
| Link to document | |
Title
Global to coastal multiscale modeling in the Energy Exascale Earth System Model (E3SM)
Authors
Phillip Wolfram (Unlicensed), Tian Zhou, Gautam Bisht, Zeli Tan, Hongyi Li, Chang Liao, Andrew Roberts, Jon Wolfe, Mark Petersen, Brian Arbic, Darren Engwirda (Unlicensed), Steven Brus, Zhendong Cao (Unlicensed), Mathew Maltrud, Xylar Asay-Davis, Ruby Leung, Ian Kraucunas
Abstract
Existing Earth System Model coastal modeling approaches typically neglect an explicit, continuous representation of coastal processes that seamlessly transfer from global to coastal scales. The consequences of this historical design decision is that coupled processes at the terrestrial aquatic interface are unable to be directly represented in terms of interacting, coupled processes. Use of unstructured meshes in the U.S. Department of Energy’s Energy Exascale Earth System Model (E3SM) provides an unparalleled capability to resolve the terrestrial aquatic interface, leveraging new Model for Prediction Across Scales Ocean (MPAS-O) flooding capabilities and improved representation of the land-river-ocean interface via dynamic coupling with the E3SM Land Model (ELM) and the Model for Scale Adaptive River Transport (MOSART). Use of a single unified multiscale mesh across the land-river-ocean interface will enable seamless coastal modeling and cross-shore exchanges will be enabled by this scale-consistent coupling to facilitate transport of sediment, nutrients, and salinity fluxes across the entire coastal zone. We present plans and initial results towards development of this broad E3SM coastal capability that focuses on inundation, first steps toward coastal biogeochemistry, and land-river-ocean estuarine exchanges at high climate model resolution scales.