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Met.3D requires meteorological data on a regular lat-lon grid.The Data handling section provides an overview about the supported data and file types in Met.3D. If you download ERA5 data on a regular grid, you should be able to directly load the data into Met.3D and start your visual data exploration. If the data is on a Gaussian or Spectral grid, you need to interpolate the data to a regular grid before you can analyse it using Met.3D. The Climate Data Operators (CDO) provide a convenient way to interpolate ERA5 data onto a regular grid.For a detailed documentation of CDO, please see: https://code.mpimet.mpg.de/projects/cdo/. The The remapping section outlines the procedure for the conversion of spectral or gaussian grids to regular lat lon grid. Similarly, the stereographic conversion section provides for example, code snippet for the conversion of regular grid to a stereographic grid, which was performed in this study.
---> Minimal example CDO gridfile regular lat-lon grid (cylindrical proj): /MM/project.notes/mcao.configfiles/ERA5_postprocessing/CDOGridFiles_RegLL/gridLatLon_forCaseStudies.txt
---> Minimal example CDO gridfile for data in a polar stereographic projection: MM/project.notes/mcao.configfiles/ERA5_postprocessing/CDOGridFiles_StereographicProj/gridPolarStereo_forCaseStudies.txt
---> Minimal example CDO command for interpolation from Gaussian / Spherical grid to regular lat-lon: MM/project.notes/mcao.configfiles/SI_HelperTools
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