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Questions tagged [cdo-climate]

Climate Data Operators (CDO) is a collection of command line Operators to manipulate and analyse gridded datasets in the supported data formats of netCDF 3/4, GRIB 1/2, SERVICE, EXTRA and IEG. There are more than 600 operators available. Many functions are generic (spatial/temporal means, variances, regridding, trends, EOF, covariances, correlations) while others are aimed particularly at analyzing climate and weather data (e.g. seasonal statistics).

Climate Data Operators (CDO) is a collection of command line Operators to manipulate and analyse gridded datasets in the supported data formats of GRIB 1/2, netCDF 3/4, SERVICE, EXTRA and IEG. There are more than 600 operators available. While many of these functions are general (spacial and temporal statistics such as averages and variance, regridding, subsetting, concatenating etc), Many functions are particularly aimed analysing climate and numerical weather prediction model data. Full documentation is available at https://code.mpimet.mpg.de/projects/cdo/

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Polar stereographic projection to regular lat/lon grid

This is a follow on from my previous question, in that this is much more specific with examples and data. I have a 304 by 448 array of ice data (in polar stereographic projection), of which the netcdf can be obtained here. The corresponding lat/lon…
J W
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How to get the average data of acummulated precipitation

I'm really new to this CDO thing and I feel awkward. I have been working with netcdf files that have daily precipitation data and I would like to perform these calculations with CDO First calculate the moving sum of precipitation using a 5-day…
Fernando Primo Forgioni
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How can I use cube (3) or square (2) by CDO to calculate values?

How can use cube (3) or square (2) by CDO to calculate values? I do not understand how I can use cube (3) or square (2) by CDO to calculate wind density. Please see the following equation. We have data (m/s) in the NC file. --> infile.nc Wind…
Khan
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How to calculate "Standard deviation (STD)" by CDO?

How can I calculate the temporal "Standard deviation" with cdo?
Khan
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How do I find the NetCDF root directory?

After installing CDO in a Manjaro distro, I got the following error: cdo sinfo air_temperature.nc cdo sinfo: Open failed on >air_temperature.nc< Unsupported file type (library support not compiled in) To create a CDO application with…
piechevall
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Is it possible to concatenate multiple time series columnwise into a matrix in CDO?

I have multiple time series of a characteristic over the same time period stored in separate netCDF files, and I would like to store these time series in a matrix accessible from one netCDF file. So, I would like to transform the data from the…
Mikhail Latonin
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About dry and humid heatwaves

I would appreciate it if someone can assist with a code to calculate the "specific number of heatwaves days where relative humidity > 66% and < 33%". (whereas, a heatwave event is defined as one in which temperatures exceeded the 90th percentile of…
Farhan
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How can we extrapolate data from the 10 m climate variable (m/s) to 30 m by CDO?

How can we extrapolate data from the 10 m climate variable (m/s) to 30 m by cdo? We have data (m/s) in NC file. obsfile1.nc You can see the power law method (for extrapolation) in the equation. Please see the attached screenshot.
Khan
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how to mask basin using ferret or cdo

I have world map GRACE-data in netcdf file. I'm looking for visualizing data in a selected region, for instance just visualize the data for Amazon or Volga basin. I was suggested to use basin mask
Minh Hiếu
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Simultaneous shell and cdo operations on a directory with multiple netCDF files

I have a directory, let's call it Simulation and a number of folder in the directory with some NetCDF file in each folder. Simulation [Directory]: ----ACCESS [Folder]: ------ Rootzone_ACCESS_rcp26_xyz.nc …
Ep1c1aN
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