cdo -sellonlatbox,-180,180,0,90 经纬度网格重新排列Rearrange data from longitude 0 to 360 degrees to -180 to 180 degrees (latitude:

Mar 25, 2008 This illustrates a partially-funded synthetic CDO typical of the failed structure in the subprime meltdown. "Partially-funded" refers to the fact that

Example: It computes a simple mean when used on an array that has a grid without coordinates units: >>> 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. 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.

$ 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 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 cdo -sellonlatbox,119.5,120.5,33.5,34.5 -selname,SCW,SCI,SCS,SCH,SCHL,SCR,SCTOT,REFL_10CM -seltimestep,1,7,13,19,24 wrfout_d03_2016-06-23_06\:00\:00 wrfsub.nc # sellonlatbox 表示按照经纬度范围选择区域，先经度范围，后纬度范围 # selname 表示按照变量名选择数据，直接跟变量名，用,号隔开 # seltimestep 表示按照时步选择数据，数字分别表示 R/cdo.sellonlatbox.R defines the following functions: We want your feedback! Note that we can't provide technical support on individual packages. 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. x: input netcdf file for 'cdo.sellonlatbox' y: extent or Extent* object indicateing the extent to extract. further arguments.

CDO. Ferret. 1. Data Analysis and Visualization in Scientific Research. 2. Step by Step: bash$ cdo sellonlatbox,75,85,10,15 input.nc out_box.nc bash$ cdo

2018-07-18 cdo sinfo Grid coordinates shows "generic" instead of "lonlat", and unsurprisingly cdo cant subset the dataset: cdo sellonlatbox (Abort): Unsupported grid type! Does anyone here know the solution? Thanks,-- Jay. python grid netcdf cdo-climate.

I've been playing with CDO for a while to convert some UM files (I've cdo griddes rotated.nc > mygrid cdo sellonlatbox,-20,20,45,65 converted.nc out2.nc .

In the above example ( Step 4 ) we demonstrate how distribution fitting parameters can be saved as NetCDF. To save space, still using CDO, I then have done this: cdo sellonlatbox,-20,20,45,65 converted.nc out2.nc. Cheers!

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. The above command creates a template of a 0.25-degree resolution. CDO doesn't automatically convert to -180,180, only if you specify this in the command line, if the input file was defined 0,360 and you type sellonlatbox,0,360,-90,90 then the output file will be identical.
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cdo -sellonlatbox,lonmin,lonmax,latmin,latmax infile outfile Example: To extract only the northern hemisphere cdo -sellonlatbox,-180.0,180.0,0.0,90.0 infile outfile How can I change the attributes of a variable?¶ Use the setattribute operator. Example: Change the units of variable tas to Kelvin cdo -setattribute,tas@units="K" infile outfile $ 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-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,100.3,100.7,13.5,13.8 cahpba.pm.6190.05216.rr8.nc cahpba.pm.6190.05216.rr8.ext.nc 1 b.
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Jan 23, 2018 input data. Operators are ALWAYS executed from right to left. cdo -sellevel,200 - sellonlatbox,-100,-20,-60,20 -selmon,6,7,8 input.nc output.nc.

3.5 Változók CDO Climate Data Operators.

cdo -sellonlatbox,-180,180,0,90 经纬度网格重新排列Rearrange data from longitude 0 to 360 degrees to -180 to 180 degrees (latitude:

6. returnMaArray= topo). 7 pylab.imshow(numpy.flipud(oro)). 8.

For applying the extent on input, CDO sellonlatbox command is used.:return: xr.DataArray Returns xarray DataArray of area averaged input. Example: It computes a simple mean when used on an array that has a grid without coordinates units: >>> data = xr.DataArray I got the following message: (cdo sellonlatbox (Abort): Unsupported grid type: PROJECTION !), When I am trying to make a subset using cdo sellonlatbox. #!/bin/bash # cut out a box around Laptev Sea to speed up computation cdo sellonlatbox,85,165,70,83 ETOPO1_Ice_g_gmt4.grd laptev_cut.nc # cut out polygon laptev_lim.text, take only depths (not heights), remove NANs cdo setmisstoc,0.0 -lec,0 -maskregion,laptev_lim.txt laptev_cut.nc laptev_mask.nc # calculate area per box in m^2 first, then convert to km^2 cdo divc,1000000 -gridarea laptev_mask 2021-04-04 Hi Katherine, Your input file grid-size/increment is 1.875 degree (see cdo sinfo output) BUT your "sellonlatbox" is less than the increment or grid-size: longitude box is -68.4 to -69.1 is less than 1.875, and latitude as well. so the only possible solution is as suggested by Uwe (see the above post) - remapping to nearest grid point; so if you try: cdo -sellonlatbox,-180,180,0,90 Rearrange data from longitude 0 to 360 degrees to -180 to 180 degrees (latitude: -90 to 90 degrees): I used sellonlatbox to select differents regions, and I have a question (sorry if it's obvious, but I'm confused now). If I select: cdo sellonlatbox,-20,40,70,30 ifile ofile, ofile contains then, negative longitude (from 20W-40E) but if I select for instance: cdo sellonlatbox,-120,-60,60,10 ofile contains positive longitude : (240-300)..