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Is there a way to convert Yin-Yang grid to latitude-longitude grid without looksing the overlapping areas?

Added by ep gupal 6 months ago

I have an issue while converting Yin-Yang grid (https://www.mpa-garching.mpg.de/184309/Yin-Yang) data into latitude-longitude grid. But, during the process, I am loosing the overlapping parts of the Yin-Yang grid. Is there a way to preserve the overlapping parts? I am trying to convert GEM (https://doi.org/10.1029/2019MS001781) model simulation data into latitude-longitude grid.

Here is the command that I use to convert Yin-Yang grid data to latitude-longitude data.

cdo remapcon,target.grid.txt -setgrid,grid.file.nc input.nc output.nc

the target.grid.txt contains target grid information like the following

# 0.25 degree latitude-longitude grid
gridtype  = lonlat
gridsize  = 1038240
xsize     = 1440
ysize     = 721
xname     = lon
xlongname = "longitude" 
xunits    = "degrees_east" 
yname     = lat
ylongname = "latitude" 
yunits    = "degrees_north" 
xfirst    = -180.0
xinc      = 0.25
yfirst    = -90.0
yinc      = 0.25

The grid.file.nc contains the grid information of the GEM model, which is Yin-Yang grid.

Thank you.


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