cdo sellonlatbox,120,-90,20,-20 ifile ofile To compute the ensemble mean over 6 input files use and write in ofile: cdo ensmean ifile1 ifile2 ifile3 ifile4 ifile5 ifile6 ofile NetCDF-4 note: CDO supports the netCDF-4 classic data model with compression.

cdo sellonlatbox,lon1,lon2,lat1,lat2 world_file.nc region.nc Share. Improve this answer. Browse other questions tagged netcdf cdo-climate or ask your own question.

Setting up the camera is somewhat difficult because the camera uses ParaView's world coordinates ("cartesian coordinates") and we only have the longitude and latitude of the data we are interested in. cdo settaxis,1000-01-01,00:00:00,1year uwnd.nc uwnd_yr.nc . 例8：对于ERSST资料，单位是kelvin，讲0~273.15范围的值都设置为缺测。代码： cdo setrtomiss,0,273.15 ERSSTV4.nc ERSSTV4_missing.nc. 3.4.

This $ cdo -fldmean -sellonlatbox,lon1,lon2,lat1,lat2 inputfile.nc outfile.nc To convert the output of above command to text, use following command $ cdo -outputtab,date,name,value outfile.nc > outfile.txt Note: The data used here has been processed in the same way as Worksheet 1. The 8 point-rim has been removed and it has been converted from PP to netCDF format. 2.1 Introduction to CDO NCO works fine, but just to list an alternative, one can also do it using cdo (climate data operators), which I find easier to remember. You can specify directly the longitude and latitude values in this way: cdo sellonlatbox,lon1,lon2,lat1,lat2 infile.nc outfile.nc where lon1,lon2,lat1,lat2 define the boundaries of the area you require. cdo sellonlatbox 145.7292, 146.2292, -40.9972,-41.4972 infile.nc outfile.nc You can convert any netCDF file to plain text (*.txt) using the command: ncdump infile.nc > outfile.txt Under the hood nctoolkit relies mostly on CDO to carry out the specified manipulation of netcdf files.

cdo timmean INFILE OUTFILE Cut a regional window using cdo sellonlatbox posted Feb 20, 2013, 1:57 AM by gibies george [ updated Feb 20, 2013, 1:57 AM ]

x: input netcdf file for 'cdo.sellonlatbox' y: extent or Extent* object indicateing the extent to extract. further arguments. dim: integer vector reporting the number of rows and columuns of the matrix of tiles into which the cropped map is spit. cdo sellonlatbox: Unsupported grid type: generic: Ahmed Shaaban: 2011-12-29 21:00: 3: Added by Armelle Reca Remedio about 9 years ago RE: cdo sellonlatbox: Unsupported grid type: generic: Monsum: segmentation fault when used in combination: Dominik Wisser: 2012-02-27 14:18: 2: Added by Dominik Wisser about 9 years ago cdo sellonlatbox,120,-90,20,-20 ifile ofile To compute the ensemble mean over 6 input files use and write in ofile: cdo ensmean ifile1 ifile2 ifile3 ifile4 ifile5 ifile6 ofile NetCDF-4 note: CDO supports the netCDF-4 classic data model with compression.

2.1: Introduction to CDO 2.2: Climatological mean calculation 2.3: Mean annual cycle calculation 2.4: Comparing models and observations 2.5: Climatological mean and annual cycle for an ensemble

cdo-sellevel,200-sellonlatbox,-100,-20,-60,20-selmon,6,7,8input.ncoutput.nc Guilherme MartinsNational Institute for Space Research (INPE) Climate Data Operators (CDO) $ cdo sellonlatbox,-170,-120,-5,5 tas_Amon_CESM2_historical_r1i1p1f1_gn_197101-200012_anomaly.nc Nino34Region.nc Then use function fldavg to calculate the field average and save the result as the Nino34 index. cdo -sellonlatbox,5,19,36,48 h14_2019053000.nc h14_2019053000_Italy.nc #Note that the size of the file is vastly reduced (h14_2019053000.nc ~ 25 mb, h14_2019053000_Italy.nc ~ 70 kb)! Size of netCDF files can be further reduced by compression e.g. cdo -f nc4c -z zip_6 copy h14_2019053000_r.grib h14_2019053000_compressed.nc cdo -f nc -sellonlatbox,lon1,lon2,lat1,lat2 -random,r1440x720 template.nc Where lon1,lon2,lat1,lat2 are your desired domain. The above command creates template of your desired resolution. This $ cdo -fldmean -sellonlatbox,lon1,lon2,lat1,lat2 inputfile.nc outfile.nc To convert the output of above command to text, use following command $ cdo -outputtab,date,name,value outfile.nc > outfile.txt Note: The data used here has been processed in the same way as Worksheet 1.

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for fl in *.nc; do cdo sellonlatbox,114.3 Convert to Netcdf using CDO cdo -f nc setgridtype,curvilinear filein fileout.nc cdo sellonlatbox,lon min,lon max,lat min,lat max fileout.nc fileoutCUTOUT.nc Feb 28, 2019 tools, such as the climate data operators (CDO) [6] or the NetCDF operators By application of the sellonlatbox operator to the monthly sums of. Oct 29, 2018 Oct 24 18:30:05 2018: cdo sellonlatbox,19,34.6,34.6,43 SIS_sarah_daily_2007_2008.nc SIS_sarah_daily_2007_2008_greece.nc ## Wed cdo sellonlatbox,-180,180,-90,90 infile.nc outfile.nc. And the result is: This example was done with NCEP/NCAR Reanalysis file air.mon.mean.nc and an with the sellonlatbox,lon1,lon2,lat1,lat2 infile outfile selindexbox. Select an index box selindexbox,idx1,idx2,idy1,idy2 infile outfile selgridcell.

NCO works fine, but just to list an alternative, one can also do it using cdo (climate data operators), which I find easier to remember. You can specify directly the longitude and latitude values in this way: cdo sellonlatbox,lon1,lon2,lat1,lat2 infile.nc outfile.nc where lon1,lon2,lat1,lat2 define the boundaries of the area you require. cdo -f nc -sellonlatbox,lon1,lon2,lat1,lat2 -random,r1440x720 template.nc. Where lon1,lon2,lat1,lat2 are your desired domain.
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cdo selyear,2014/2020 chirps_monthly_bydekad.nc chirps_monthly_bydekad_a.nc After that, you can continue the process following above mentioned steps. In the above example ( Calculate SPI ) we demonstrate how distribution fitting parameters can be saved as NetCDF.

replace ## 替代数据气象数据处理加速器——cdo¶ cdo是一款气象领域基于Linux处理数据十分强大的工具，是climate data operator的缩写。它提供了600多个常见的操作，能够对数据进行快速的操作和分析，能够很快速的处理nc、grid等常见的数据。 cdo.distgrid: R Interface for 'cdo.sellonlatbox' and 'cdo.distgrid' cdo.remapnn: R Interface for 'cdo.remapnn' cdo.seldate: R Interface for 'cdo.seldate' cdo.sellonlatbox: R Interface for 'cdo.sellonlatbox' Browse all This worked nicely although a bit clunky as it results in a really big - mainly empty - netCDF file! To save space, still using CDO, I then have done this: cdo sellonlatbox,-20,20,45,65 converted.nc out2.nc.