SCREAM is a next-gen atmosphere component for the E3SM project. In contrast to previous atmosphere components, which model phenomena on grids with coarser spatial scales using sub-grid-scale parameterizations, SCREAM focuses on resolving cloud physics by solving well-established differential equations using state-of-the-art numerical methods.

E3SM project members can find more information on SCREAM's Confluence Site. Plenty of documentation is available on the Documentation page, visible in the left side bar.

SCREAM uses process implementations from legacy Fortran modules from E3SM. You can find these modules components/cam/src. These legacy implementations use the CAM/E3SMv1 process coupling approach, and are used mostly for comparisons with the newer C++ implementations. The C++ implementations are exposed via SCREAM's atmosphere driver.

For information about building SCREAM and running its tests, see this page.

You can also take a brief tour of SCREAM's source tree.

SCREAM comes with a python-based set of tools that compliments the CIME tool suite and also works with standalone SCREAM. See scripts/README.md for more.