cdo –f nc copy file.grb file.nc. • Cutting a smaller model area with specific corners in southwest (lon1,lat1) and northeast (lon2,lat2): cdo sellonlatbox,lon1,lon2

I got the following message: (cdo sellonlatbox (Abort): Unsupported grid type: PROJECTION !), When I am trying to make a subset using cdo sellonlatbox.

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,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)!

Cdo sellonlatbox

If the fields are global you can convert from 0-360 to -180,180 with cdo sellonlatbox,-180,180,-90,90 in.nc out.nc. and to convert the other way: If you don't mind me offering a non-matlab solution, you can select a region from the command line with cdo: cdo sellonlatbox,-5,5,44,50 input_data.nc france.nc. Whether to crop the data after interpolation with 'cdo sellonlatbox' (TRUE) or to extend interpolated data to the whole world as CDO does by default (FALSE). Clip the domain for each variable. An example is shown below for temperature: cdo sellonlatbox lon1lon2 lat1 lat2 inputfile_tas_1980.nc outputfile'_tas_1980.nc. 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 . Jan 23, 2018 input data.

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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. Cheers!

R/cdo.sellonlatbox.R defines the following functions: We want your feedback! Note that we can't provide technical support on individual packages.

I will demonstrate this using a netcdf file os sea surface temperature.

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. 文件处理.
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Where lon1,lon2,lat1,lat2 are your desired domain. The above command creates a template of a 0.25-degree resolution. 2019-11-11 cdo sellonlatbox,lon1,lon2,lat1,lat2 world_file.nc region.nc Share. Improve this answer. Follow answered Jul 23 '20 at 13:11.

The CDO comand is the following: cdo sellonlatbox,LON1,LON2,LAT1,LAT2 infile outfile – LON1 and LON2 are the lower and upper longitude of your window – LAT1 and LAT2 the lower and upper latitiude of your window cdo -sellonlatbox,0,360,-40,40 ifile.nc ofile.nc We can combine these two request as follows: cdo -sellonlatbox,0,360,-40,40 -select,name=PRECC ifile.nc ofile.nc Notice here that the order matters. 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.
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cdo yearmean input_data.nc annual_averages.nc. Extract a smaller region from data (LON: 20ºE–40ºE, LAT: 50ºN–60ºN): cdo sellonlatbox,20,40,50,60

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. The 8 point-rim has been removed and it has been converted from PP to netCDF format.

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long: -68º40'00' -69º10'00'' W with the comand sellonlatbox. but I have problems with this command because when I tried. C:\>cdo sellonlatbox,-68.4,-69.1,-17.5

Cheers! Alex 2011-11-04 · cdo selyear,3500/3600 -sellonlatbox,110,-70,-20,60 all.nc all_sub.nc sellonlatbox运算符的作用是从输入文件中选取一定的经纬度区域，写入到输出文件中。 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: $ cdo fldmean region.nc region_ts.nc Let’strythatinonestep: $ cdo fldmean -sellonlatbox,lon1,lon2,lat1,lat2 t2m_dm.nc region_ts.nc Or perhaps you prefer to extract a single point near your preferred lat/lon: cdo remapnn,lon=X,lat=Y t2m_dm.nc outfile.nc Timeaveragetheﬁeld: $ cdo timmean region.nc region_mean.nc 6.2 Exercise 2: ACUMULATED FIELDS 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 ( Step 4 ) we demonstrate how distribution fitting parameters can be saved as NetCDF. Ruby/Python bindings for CDO. Contribute to Try2Code/cdo-bindings development by creating an account on GitHub. cdo: 强大的气象类数据处理软件。1、数据的提取合并（提取特定时间、空间、经纬度等等）2、数据的简单运算（加减乘除、方差、均方差、和、最值、滑动均值、滑动方差、滑动最值、区域平均、区域方差、区域最值等等）3、数据的统计运算（相关、线性回归、EOF、滤波、水平插值、垂直插值等等 Jun 26, 2015 cdo -sellonlatbox,0,360,-40,40 AQUA*.nc ofile.nc >cdo sellonlatbox (Abort): Too many streams! Operator needs 1 input and 1 output streams.