upgrade OPAC aerosol with more advanced MERRA2 aerosol #472
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enhancement
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Apr 4, 2023
Supports CCPP with new NSSL microphysics scheme, which has separate hydrometeor categories for graupel and hail (Mansell et al. 2010, JAS). This PR allows fv3atm to compile correctly with CCPP+NSSL, but a further update to atmos_cubed_sphere is needed to run correctly. The NSSL scheme is used in NSSL's daily FV3 convection-allowing forecasts, and the scheme itself is aimed at this scale (dx <= 4km). Testing is underway also with a preliminary Warn-on-Forecast FV3 ensemble.
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Description
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Upgrade the 5 degree by 5 degree low resolution OPAC aerosol with 0.5 degree by 0.625 degree MERRA2 aerosol
Solution
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read and interpolate the new MERRA2 data set to couple with radiation and microphysics
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