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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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2answers
124 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.
7
votes
1answer
163 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?
4
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1answer
574 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: ...
5
votes
0answers
59 views

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
votes
1answer
495 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 ...
2
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0answers
48 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. ...
6
votes
1answer
71 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 ...
2
votes
1answer
177 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 ...
12
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1answer
4k views

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? <...
7
votes
1answer
2k views

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
votes
1answer
3k views

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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7answers
2k views

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 ...