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data changed caused by "cdo remapbil"

Added by Lyon Kao about 3 years ago

all data changed to missingvalue when I used "cdo remapbil,r72*37 NCEP_ano_slp_na.nc test.nc", how can I solve this problem?

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Snipaste_2021-02-15_14-48-17.png (74.9 KB) Snipaste_2021-02-15_14-48-17.png original data
Snipaste_2021-02-15_14-48-51.png (46.7 KB) Snipaste_2021-02-15_14-48-51.png data after remap
test.nc (3.05 MB) test.nc
NCEP_ano_slp_na.nc (12 MB) NCEP_ano_slp_na.nc

Replies (1)

RE: data changed caused by "cdo remapbil" - Added by Ralf Mueller about 3 years ago

hi Lyon!

you input file defines a valid_range attribute which leads to all values interpreted a invalid, i.e. missing value

cdo infov NCEP_ano_slp_na.nc                                                                                                                                                                                                                                                                                              ─╯
Warning (cdfScanVarAttr): NetCDF: Variable not found - time_bnds
    -1 :       Date     Time   Level Gridsize    Miss :     Minimum        Mean     Maximum : Parameter name
     1 : 1993-01-01 00:00:00       0    10512   10512 :                     nan             : t300          
     2 : 1993-02-01 00:00:00       0    10512   10512 :                     nan             : t300          
     3 : 1993-03-01 00:00:00       0    10512   10512 :                     nan             : t300          
     4 : 1993-04-01 00:00:00       0    10512   10512 :                     nan             : t300          
     5 : 1993-05-01 00:00:00       0    10512   10512 :                     nan             : t300

Hence remapping can only create missing values out of it. BTW: I don't think whole meta data of the t300 is valid since it looks more like anomalies.

cheers
ralf

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