Point in ploygon
Added by Yousef Albuhaisi over 2 years ago
Hi,
I wonder if cdo can be used to assign points in the high-resolution map into a low-resolution map. in another word, I want to point the values in the high-resolution grids that correspond to the low-resolution girds. is that possible?
Replies (10)
RE: Point in ploygon - Added by Karin Meier-Fleischer over 2 years ago
Hi Yousef,
I don't understand what you mean with
to point the values in the high-resolution grids that correspond to the low-resolution girds
-Karin
RE: Point in ploygon - Added by Yousef Albuhaisi over 2 years ago
Hi Karin,
I want to remap but without interpolation.
please see attached picture.
Regards.
Yousef.
RE: Point in ploygon - Added by Ralf Mueller over 2 years ago
hi Yousef!
which value should the resulting low-resolution cell get?
RE: Point in ploygon - Added by Yousef Albuhaisi over 2 years ago
HI KARIN,
the results can be the mean or the sum.
Regards.
Yousef.
RE: Point in ploygon - Added by Ralf Mueller over 2 years ago
I am not 100% sure, but there might be something under development for this. I have to check it - could take a while.
I guess you could use conservative remapping as well, since it uses area-weighted means.
RE: Point in ploygon - Added by Karin Meier-Fleischer over 2 years ago
Since CDO version 1.9.10 there are some operators with status 'experimental'. You can try
cdo -remapsum,<targetgrid> infile outfile
or
cdo -remapmean,<targetgrid> infile outfile
RE: Point in ploygon - Added by Yousef Albuhaisi over 2 years ago
Hi,
THank you!
I guess this command is not available in the version I use. I am running CDO in Linux using a supercomputer. do you have ideas about how to download this?
Regards.
Yousef.
RE: Point in ploygon - Added by Karin Meier-Fleischer over 2 years ago
To install the recent version see https://code.mpimet.mpg.de/projects/cdo/wiki#Installation-and-Supported-Platforms