cdo uv2dvl (Abort): Missing values unsupported for spectral data!
Added by Christopher Danek almost 6 years ago
Hi
I would like to calculate the vorticity of the zonal and meridional velocities u and v saved on a Gaussian grid:
$ cdo sinfo test.nc
File format : netCDF
-1 : Institut Source Ttype Levels Num Points Num Dtype : Parameter ID
1 : unknown Altimetry instant 1 1 1036800 1 I32 : -1
2 : unknown Altimetry instant 1 1 1036800 1 I32 : -2
Grid coordinates :
1 : gaussian : points=1036800 (1440x720) np=0
lon : 0 to 359.75 by 0.25 degrees_east circular
lat : 89.8088 to -89.8088 degrees_north
Vertical coordinates :
1 : surface : levels=1
Time coordinate : 1 step
RefTime = 1950-01-01 00:00:00 Units = days Calendar = standard
YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss
1993-12-31 00:00:00
$ ncdump -h test.nc
int u(time, lat, lon) ;
u:standard_name = "surface_eastward_geostrophic_sea_water_velocity" ;
u:long_name = "Absolute geostrophic velocity: zonal component" ;
u:units = "m/s" ;
u:grid_type = "gaussian" ;
u:add_offset = 0. ;
u:scale_factor = 0.0001 ;
u:_FillValue = -2147483647 ;
u:missing_value = -2147483647 ;
Variable v looks similar and yes, there are missing values in the data. If I run
cdo uv2dv test.nc test_dv.nc
, this error occurs:cdo uv2dvl (Abort): Missing values unsupported for spectral data!
I could not find any information about that in the cdo manual or in the internet.
Thanks a lot for answer!
Chris