Questions tagged [netcdf]

NetCDF (Network Common Data Form) is a self-describing data format developed by University Corporation for Atmospheric Research (UCAR).

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WRF/Chem: Editing NetCDF (wrfchemi files) for own emissions

Does anybody here have any experience with editing wrfchemi outputs from the prep_chem utility so that I overwrite the file with my own emissions? I am knowledgeable in python, but I am not that well ...
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How to determine the orientation of coastline from NetCDF file

I have a NetCDF file (gridded data) with a landsea mask. I would like to determine, for the coastal grid-cells, what the orientation of the coastline is. I need to do this in order to calculate the ...
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2answers
174 views

Huge netcdf files handling

Can any one help me to handle huge netcdf files each of 1gb memory in loop and at least 2 files at a time in ncl or linux or python or matlab. for example era_interim daily pressure level datasets.
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205 views

Regarding compression, shuffle filter of netcdf4

I read the doc but still have no idea about what are the advantages to enable or disable the shuffle, what level [0-9] of compression is optimal, what's the best choice of chunk size?
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1answer
817 views

Adding time dimension and corresponding new variable to a netcdf file

I have created a x,y netcdf file and now want to add additional time energy variable. So that for each grid cell I have a energy time value. My script is like this in Python: ...
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Generating netCDF file composed of zeros?

I need to generate an all-zeros file as an input file for an Earth Systems model (DGVM) I'm using. I have a file with the same dimensions as the zero file. I have R and MATLAB and use a Fedora machine....
2
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1answer
639 views

How to prepare GrADS's .ctl file to convert grd file into .nc file in batch mode?

I have lots of grd (GrADS) file and I want to convert those data into netCDF file using cdo. The operation needs all the corresponding ctl file and I will have to prepare all these. So, my question is ...
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59 views

Unable to read modis sst netcdf file in matlab [duplicate]

I'm using Matlab to read MODIS Aqua sea surface temperature data. Unfortunately I am not able to do it. It will be great if any of you can help me with that. ...
5
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78 views

Digitalizing precipitation data from the image of weather map

I have a set of very old precipitation anomaly maps, from 1995-2006 for Brazil. The data of these maps, is to the best of my knowlegde, lost. I would like to have them digitalized, ie, to NetCDF or ...
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1answer
190 views

How to correct PSMSL data for GIA?

I have a PSMSL RLR (revised local reference) sea level dataset with records from various tide gauges. Can anyone explain how to correct them for GIA (glacial isostatic adjustment) using the ICE-5G ...
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Plotting wind barbs in python

I'm trying to plot wind barbs in basemap and I have two separate netCDF files. Here is what I am trying to produce, or something like it: How do I read a uwnd variable in a netCDF file in python? <...
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How to read a NetCDF4 file in Matlab?

I have downloaded the sea surface temperature data from the Ocean Color website, the file is in NetCDF format and contains no of geophysical_data variables like sst,...
7
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1answer
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CDL File Questions

I'm confused by what exactly a CDL file is and what its purpose is. Unidata specifies the syntax of such a CDL file in its netCDF documentation. Questions: Are CDL files designed to be opened by a ...
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What tools allow a quick comparison of NetCDF output from ocean models?

I am writing my own MATLAB scripts to do most of the visualization and data analysis of model results. I wonder if there is a quicker way for visual comparison of simulation results gained from ...