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convert rotated data into unrotated data

Added by Dirk Pavlik about 8 years ago

Dear all,
I urgently need a Fortran routine to convert rotated data into unrotated data with geographical coordinates.
May be something like this: rot2geo <pollon,pollat,polgam> <infile> <outfile>.
Normally I do this with R because I’m not a Fortran expert, but for my current project works only Fortran. Has anyone a routine already there? That would be very helpful would save a lot of time.

Best regards
Dirk


Replies (2)

RE: convert rotated data into unrotated data - Added by Burkhardt Rockel almost 8 years ago

I have no program to be called from the command line, but there are two subroutines (rlarot2rla and phirot2phi) in the CCLM code in the subroutine utilities.f90 that you can use. You need to build your own program around these.

RE: convert rotated data into unrotated data - Added by Dirk Pavlik almost 8 years ago

Dear Burkhardt,
thank you for the hint. In the meanwhile we decided to do the “back-rotation” with the remapping tools of CDO (command: cdo remap,<grid>,<weights> <ifile> <ofile>). The first tests show that will work.

Best regards
Dirk

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