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发表于 2019-5-23 20:39:52
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To plot WRF-ARW data with the gsn_csm scripts in the native map projection defined on the file, you must do three things:
Call wrf_map_resources
This sets the necessary NCL resources to define the native map projection.
Set tfDoNDCOverlay = True
By default, when data are placed onto a map, NCL performs a transformation to the specified projection. This transformation is not needed if you have defined the native grid that your data is on. Setting tfDoNDCOverlay = True turns off this transformation, and also results in faster graphic generation.
Set gsnAddCyclic = False The gsm_csm_*map* suite of interfaces expect global data, and hence tries to add a longitude cyclic point. If plotting regional data, it is necessary to set gsnAddCyclic = False to prevent the longitude cyclic point from being added.
For a whole suite of examples using NCL to plot WRF-ARW data, we recommend that you visit the WRF-ARW Online Tutorial.
https://www.ncl.ucar.edu/Applications/wrfgsn.shtml |
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