regridding netcdf file using ClimateOperators and specified grid

[dancrear]

Hi,

I'm excited to use your package! I've been getting more familiar with cdo and the formatting specifically through Climate Unboxed youtube tutorials. However, I'm trying to translate it to R and am having a tough time and was hoping you could help.

I'm on a Linux Virtual Machine with cdo installed as well as the package ClimateOperators. I wanted to regrid a 4 dimensional netcdf file to a coarser resolution using 1st order conservative mapping. Right now the dimensions are 961 lon x 961 lat x 32 depths x 31 days (basically 1/12 degree). I would like to reduce it to 321 lon x 321 lat x 32 depths x 31 days (basically 0.25 degree). I tried to use another netcdf file which has the dimensions 321 lon x 321 lat x 31 days and I received the error "CDO command failed. Status code 1." The code I used is below, where examp.nc is the netcdf file I want the spatial resolution to match. I' m not sure why I'm receiving the error. Maybe it is because one grid has 4 dimensions and the other has 3 dimensions?

cdo("remapcon,examp.nc","t.nc","out.nc")

I'm also trying to use the specified grid approach explained in the youtube tutorial above. I created .txt file with the required information but I don't understand how to specify the .txt file that has the new grid information in the R code. Any help would be greatly appreciated!

Thanks!
Dan

[markpayneatwork]

Hi Dan, The best place to start with debugging is actually using CDO directly from the command line – once you’ve got the command up and running, then try implementing it in R – the ClimateOperators package is really only a wrapper for command line CDO anyway, so they should be the same. The CDO manual is also pretty useful for getting these commands to work – here is the example from remapcon: ***@***.*** “n32” in this case should be replaced with the text file that you mentioned that specifies the grid. Hope that helps. Mark From: Dan Crear ***@***.***> Sent: tirsdag den 19. marts 2024 16.22 To: markpayneatwork/ClimateOperators ***@***.***> Cc: Subscribed ***@***.***> Subject: [markpayneatwork/ClimateOperators] regridding netcdf file using ClimateOperators and specified grid (Issue #5) Hi, I'm excited to use your package! I've been getting more familiar with cdo and the formatting specifically through Climate Unboxed youtube tutorials<https://www.youtube.com/watch?v=79o6DXr_3zM>. However, I'm trying to translate it to R and am having a tough time and was hoping you could help. I'm on a Linux Virtual Machine with cdo installed as well as the package ClimateOperators. I wanted to regrid a 4 dimensional netcdf file to a coarser resolution using 1st order conservative mapping. Right now the dimensions are 961 lon x 961 lat x 32 depths x 31 days (basically 1/12 degree). I would like to reduce it to 321 lon x 321 lat x 32 depths x 31 days (basically 0.25 degree). I tried to use another netcdf file which has the dimensions 321 lon x 321 lat x 31 days and I received the error "CDO command failed. Status code 1." The code I used is below, where examp.nc is the netcdf file I want the spatial resolution to match. I' m not sure why I'm receiving the error. Maybe it is because one grid has 4 dimensions and the other has 3 dimensions? cdo("remapcon,examp.nc","t.nc","out.nc") I'm also trying to use the specified grid approach explained in the youtube tutorial above. I created .txt file with the required information but I don't understand how to specify the .txt file that has the new grid information in the R code. Any help would be greatly appreciated! Thanks! Dan — Reply to this email directly, view it on GitHub<#5>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABGCO4B5GFOXSW4VBKWP4S3YZBJX7AVCNFSM6AAAAABE5ZDVACVHI2DSMVQWIX3LMV43ASLTON2WKOZSGE4TKMRXGA4DANQ>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.******@***.***>>