issue in using splitmon operator
Added by Atul Kumar over 8 years ago
Hi
I downloaded NCEP/NCAR reanalysis data for year 2011 and I wanted to split the data in monthly file.
I used the splitmon operator but it failed to open the file
here is the error I received
atmos2@CORAL:~/Downloads/NCEP$ cdo splitmon air.2m.gauss.2011.nc air_Y2000M
cdo splitmon: Open failed on >air.2m.gauss.2011.nc<
Unsupported file type (library support not compiled in)
and here is Header info of the file
atmos2@CORAL:~/Downloads/NCEP$ ncdump -h air.2m.gauss.2011.nc
netcdf air.2m.gauss.2011 {
dimensions:
lon = 192 ;
lat = 94 ;
time = UNLIMITED ; // (1460 currently)
variables:
float lat(lat) ;
lat:units = "degrees_north" ;
lat:actual_range = 88.542f, -88.542f ;
lat:long_name = "Latitude" ;
lat:standard_name = "latitude" ;
lat:axis = "Y" ;
float lon(lon) ;
lon:units = "degrees_east" ;
lon:long_name = "Longitude" ;
lon:actual_range = 0.f, 358.125f ;
lon:standard_name = "longitude" ;
lon:axis = "X" ;
double time(time) ;
time:long_name = "Time" ;
time:delta_t = "0000-00-00 06:00:00" ;
time:avg_period = "0000-00-00 06:00:00" ;
time:standard_name = "time" ;
time:axis = "T" ;
time:units = "hours since 1800-01-01 00:00:0.0" ;
time:actual_range = 1849584., 1858338. ;
float air(time, lat, lon) ;
air:long_name = "4xDaily Air temperature at 2 m" ;
air:units = "degK" ;
air:precision = 2s ;
air:least_significant_digit = 1s ;
air:GRIB_id = 11s ;
air:GRIB_name = "TMP" ;
air:var_desc = "Air temperature" ;
air:level_desc = "2 m" ;
air:statistic = "Mean" ;
air:parent_stat = "Individual Obs" ;
air:missing_value = -9.96921e+36f ;
air:actual_range = 175.1f, 328.5f ;
air:valid_range = 150.f, 400.f ;
air:dataset = "NCEP Reanalysis" ;
// global attributes:
:Conventions = "COARDS" ;
:title = "4x daily NMC reanalysis (2011)" ;
:description = "Data is from NMC initialized reanalysis\n",
"(4x/day). It consists of T62 variables interpolated to\n",
"pressure surfaces from model (sigma) surfaces." ;
:platform = "Model" ;
:history = "created 2011/01 by Hoop (netCDF2.3)\n",
"Converted to chunked, deflated non-packed NetCDF4 2014/09" ;
:References = "http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html" ;
:dataset_title = "NCEP-NCAR Reanalysis 1" ;
I have already done the same operation on NCEP/DOE reanalysis data set and it worked correctly
what could be the issue? is cdo is unable to read CORDS convection??????
Please Let me know if there is other alternative to solve the problem
I am also attaching the NCEP file
I am using cdo version1.6.2
| air.2m.gauss.2011.nc (35.4 MB) air.2m.gauss.2011.nc | NCEP-NCAR reanalysis dataset for air temprature at 2m |
Replies (6)
RE: issue in using splitmon operator - Added by Ralf Mueller over 8 years ago
Hi!
most probably, the version you use is
- outdated (for sure)
- not compiled with netcdf4 support
your upload is z-compressed netcdf4 classic. Could be, that the netcdf library on your system does not have netcdf4 support. you have to check yourself, of course.
with
cdo -Vyou can inspect, what library versions are used by CDO. BUT to get sure about netcdf, you have to look for and call the
nc-config tool provided by you netcdf installation.
Should look like this
ram@luthien:~/Downloads nc-config [12:53:29|16-07-19] Usage: nc-config [OPTION] Available values for OPTION include: --help display this help message and exit --all display all options --cc C compiler --cflags pre-processor and compiler flags --has-dap whether OPeNDAP is enabled in this build --has-nc2 whether NetCDF-2 API is enabled --has-nc4 whether NetCDF-4/HDF-5 is enabled in this build --has-hdf5 whether HDF5 is used in build (always the same as --has-nc4) --has-hdf4 whether HDF4 was used in build --has-logging whether logging is enabled with --enable-logging. --has-pnetcdf whether parallel-netcdf (a.k.a. pnetcdf) was used in build --has-szlib whether szlib is included in build --libs library linking information for netcdf --prefix Install prefix --includedir Include directory --version Library version --fc Fortran compiler --fflags flags needed to compile a Fortran program --flibs libraries needed to link a Fortran program --has-f90 whether Fortran 90 API is installed --has-f03 whether Fortran 03 API is installed (implies F90). ram@luthien:~/Downloads nc-config --has-nc4 [12:57:57|16-07-19] yes
RE: issue in using splitmon operator - Added by Atul Kumar over 8 years ago
Hi Ralf
Many thanks for your response
I am using netcdf 4.1.3 which I installed using command sudo apt-get install netcdf-bin
here are the libraries which CDO is able to use on my machine, which also confirms netcdf version 4.1.3 I also cross checked with nc-config option you mentioned above. It says yes for nc2,nc4,hdf5 but in case of hdf4 it say no which you can see below
atmos1@CORAL:~/roms/Roms_tools/Run/DATA/CFSR_BOB$ cdo -V
Climate Data Operators version 1.6.2 (http://code.zmaw.de/projects/cdo)
Compiler: gcc -std=gnu99 -g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -pedantic -fPIC -pthread
version: gcc (Ubuntu/Linaro 4.8.2-4ubuntu1) 4.8.2
Compiled: by buildd on allspice (x86_64-unknown-linux-gnu) Nov 15 2013 17:10:54
Features: PTHREADS Z JASPER PROJ.4 MAGICS
Libraries: proj/4.7
Filetypes: srv ext ieg grb grb2 nc
CDI library version : 1.6.2 of Nov 15 2013 17:10:44
GRIB_API library version : 1.10.4
netCDF library version : 4.1.3 of Feb 24 2014 21:05:37 $
HDF5 library version : 1.8.11
SERVICE library version : 1.3.1 of Nov 15 2013 17:10:28
EXTRA library version : 1.3.1 of Nov 15 2013 17:10:20
IEG library version : 1.3.1 of Nov 15 2013 17:10:24
FILE library version : 1.8.2 of Nov 15 2013 17:10:20
atmos1@CORAL:~/roms/Roms_tools/Run/DATA/CFSR_BOB$ nc-config --has-nc4
yes
atmos1@CORAL:~/roms/Roms_tools/Run/DATA/CFSR_BOB$ nc-config --has-hdf5
yes
atmos1@CORAL:~/roms/Roms_tools/Run/DATA/CFSR_BOB$ nc-config --has-nc2
yes
atmos1@CORAL:~/roms/Roms_tools/Run/DATA/CFSR_BOB$ nc-config --has-hdf4
no
According to above information I think that I could say I say that my I have netcdf4 support but not hdf4 and my CDO vesrion is 1.6.2, which indeed is older but newly released CDO 1.7.2 has not updated splitmon function so I think I still can use CDO 1.6.2
Please let me know if I misunderstood anything and also if I have to install other libraries.
RE: issue in using splitmon operator - Added by Ralf Mueller over 8 years ago
that looks ok, finally you should check the cdo binary with ldd. This shows, which libraries the cdo binary is linked to. could be that although there is a proper system installation for netcdf, cdo does not use this on, but from somewhere else...
RE: issue in using splitmon operator - Added by Atul Kumar over 8 years ago
I could not understand how to solve this problem
I would be grateful if you can guide me to solve the problem.
RE: issue in using splitmon operator - Added by Antonio Rodriges over 8 years ago
Atul,
your cdo -V reports
....
Libraries: proj/4.7
Filetypes: srv ext ieg grb grb2 nc
CDI library version : 1.6.2 of Nov 15 2013 17:10:44
GRIB_API library version : 1.10.4
....
And this means that you do not have NetCDF4 support
For example, my cdo -V yields
*Filetypes: srv ext ieg grb nc nc2 nc4 nc4c *
So, go to
https://code.zmaw.de/projects/cdo/files
and download
libs4cdo-0.0.11
compile all libs there (notice Makefile at the folder root, you do not need manually compile all of them, just launch make only once at the libs4cdo-0.0.11 root)
and recompile cdo with something like this
./configure --with-netcdf=/usr/ --with-hdf5=/usr/ --with-szlib-lib=/usr/ --with-zlib-lib=/usr/ --with-hdf5-lib=/usr/ --with-sz-lib=/usr/ --with-proj=/usr/ -with-grib_api=/usr/
this will give you all formats supported by CDO to date
RE: issue in using splitmon operator - Added by Atul Kumar over 8 years ago
Dear Antonio,
Many thanks for your kind help.
Atul