[gradsusr] North Polar Stereographic Plot Issue

[Bradley NAVARRO]

Hi all,

I am plotting NCEP’s North Polar Stereographic Arctic wave forecasts for the North Sea (https://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.20230724/00/wave/gridded/). For some reason, the waves seem to be offset from the land region as illustrated in the attached image. I have tried tinkering with mproj setting it to ‘off' and having it set as ‘NPS'. But nothing I have done has resolved this issue. I also cannot seem to find a solution in the archives. Any help would be much appreciated! I have attached the control file I use to plot the data. I am using GrADS Version 2.0.2 (yes, outdated but it’s on a server I cannot control unfortunately). 

Thanks,
Brad






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