Issues with domains accross Greenwich
Added by Jan Polcher over 2 years ago
Hi,
I am trying to interpolate to a limited area domain sitting over the Greenwich meridian. The longitude coordinates are from 0 to 360.
CDO's remapping tools always give me a result for the area outside of my domain. The complementary for my domain which is 350 to 10 degrees east. How can I convince CDO to do the interpolation for the part between 350 and 20° ?
In spherical geometry we have to provide a point within the polygon to be considered so that it is not confused with the complementary area of the unity sphere. How do I do that in CDO ?
Best regards
Jan
Replies (2)
RE: Issues with domains accross Greenwich - Added by Ralf Mueller over 2 years ago
hi!
Try to reverse the order of the given longitudes in the CDO call.
hth
ralf
RE: Issues with domains accross Greenwich - Added by Jan Polcher over 2 years ago
Thanks Ralf,
I have solved it by changing my grid description file so that the longitudes are in the interval -180 to 180. The remapping is now correct.
I was a little taken aback by the message I got on my grid description file :
"cdo remapnn (Abort): Grid description file >ComGrid.nc< contains illegal characters (line: #HDF)!"
This was solved by adding a variable to the grid description file.
Thanks for your help
Jan