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High resolution USGS topography file named in a “pg1” cubed sphere grid.
E3SM has traditionally used USGS-topo-cube3000.nc (located in the CESM inputdata server here; note this is on a 3 km cubed sphere grid, derived from 1 km resolution source data)
New as of 2024/3: Jishi Zhang has produced a USGS-topo-cube12000.nc (750m resolution) from a 500m / 250m USGS GMTED2010 source DEM dataset. This data set should be used if ones target E3SM resolution is finer than 3 km.
topography tool (
components/eam/tools/topo_tool/cube_to_target)
homme_tool ( components/homme/test/tool, used for np4/pgN mapping).
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