sellonlatbox (Warning): No variables selected!
Added by selam haftu over 3 years ago
Hello
i used this loop: for i in $(ls); do cdo outputtab,date,value -fldmean -sellonlatbox,37.83,40.51,7.35,9.99 -remapbil,2.5_2.5.txt -eca_cdd -selyear,2031/2060 -mulc,2592000 -del29feb -sellonlatbox,0,90,0,90 ${i} > output/${i}_CDD.txt; done to make some analysis and it worked perfectly. however if i used it on another location i got this error on sellonlatbox as shown on the screen shot. the location of the study area is 37.83,40.51,7.35,9.99. attached is also the GCM model used and the .txt file for the remapbil analysis. why i am getting this error on this study area 37.83,40.51,7.35,9.99? and the CDO version is 1.9.4rc1.
thank you.
| pr_day_CanESM5_2030-2060.nc (47 MB) pr_day_CanESM5_2030-2060.nc | GCM | ||
| 2.5_2.5.txt (272 Bytes) 2.5_2.5.txt | .txt file for remapbil | ||
| selonlatbox.JPG (54.8 KB) selonlatbox.JPG | screenshot |
Replies (2)
RE: sellonlatbox (Warning): No variables selected! - Added by selam haftu over 3 years ago
Dear CDO Forum, any reply please? am eagerly waiting your answer.
RE: sellonlatbox (Warning): No variables selected! - Added by Ralf Mueller over 3 years ago
hi Selam!
I suppose you pr_day_CanESM5_2030-2060.nc is your input file for the call
cdo outputtab,date,value -fldmean -sellonlatbox,37.83,40.51,7.35,9.99 -remapbil,2.5_2.5.txt -eca_cdd -selyear,2031/2060 -mulc,2592000 -del29feb -sellonlatbox,0,90,0,90 ${i}It's not really visible in your post, but under that condition it catches my eye, that you do a remapping between two sellonlatbox calls. This remapping interpolates all inputs into a single point grid
$ cat 2.5_2.5.txt gridtype = lonlat gridsize = 1 xsize = 1 ysize = 1 xname = lon xlongname = "longitude" xunits = "degrees_east" yname = lat ylongname = "latitude" yunits = "degrees_north" xfirst = 40 xinc =2.5 yfirst = 8.75 yinc =2.5
Any
sellonlatbox after this remapping (which means left of remapbil) can only for on that single point. So the left-most sellonlatbox call does essentially nothing.
My guess is, that you should skip the remapbil. If you know your region of interest from the start, then you might select (or remap to) that region with the first operation.
Hm, I am not sure, but in case you don't know: operators are applied on the input file from right to left. So maybe you already intended to do the right thing.
hth
ralf