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Questions tagged [netcdf]

NetCDF (Network Common Data Form) is a binary file format for storing array-oriented scientific data. Use this tag for questions about programmatically encoding and/or decoding data to/from NetCDF files.

NetCDF (Network Common Data Form) is a binary file format for storing array-oriented scientific data.

From version 4, NetCDF files use the HDF5 format as container, and therefore can be read by HDF5 readers. Reliance on the HDF5 format also enabled easy parallel I/O and efficient compression.

References

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Error calculating area of raster with lat/lon projection

I have a global raster stack (of three rasters) whose pixel values are the percent of a land use for that pixel. Here's the raster metadata: class : RasterBrick dimensions : 3600, 7200, 25920000, 3 (nrow, ncol, ncell, nlayers) resolution : 1,…
Stephen Wood
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How to sort 3d numpy masked array on time axis at each grid i.e at specific latitude and longitude for climate dataset

I have a NetCDF file of Climate dataset having 3D structure with a shape of 20 * 445 * 445 as (time, latitude, longitude) I have read it as numpy.ma.core.MaskedArray using netCDF4 library I want to sort this NumPy 3D-array data on the time axis at…
Abhilash Singh Chauhan
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Using CDO to convert 2D .nc file to a 4D .nc file

I have a 2D .nc file with dimensions time and depth that I want to convert to a 4D .nc file. Latitude and longitude are saved as variable names in the 2D file. They are not in a particular order and there is large missing areas as well. The .nc file…
jonathanc
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Add projection to rioxarray dataset in Python

I've downloaded a netcdf from the Climate Data Store and would like to write a CRS to it, so I can clip it for a shapefile. However, I get an error when assigning a CRS. Below my script and what is being printed. I receive this error after trying to…
CrossLord
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Matlab can't handle data

I've been working on the processing 2 lists of 855 4000x4000 matrices. Here is a list of 855 matrices of some value, another one is a list of coordinates (another 855 4000x4000 matrices). It's important to do it within the one cycle, in order to not…
Rus
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How to plot a NetCDF time dependend data set with correct axis format?

I made a pcolormesh-plot from data in NetCDF data format. I don't manage the x- and y-axis to show the right axis ticks from the data set. Instead both axis start from zero and end with the number of points. From the NetCDF desciption…
Swawa
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Understanding Raw NETCDF files

I have downloaded .nc files (you can see here the .csv format of it RCP4.5 CLOUD COVER ---see image1) from https://cds.climate.copernicus.eu/ (both historical files and RCP scenarios --RCP 4.5, 6 AND 8.5). I have browsed the net about how to…
kiwi_kimchi
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How to show all data (no ellipses) when converting NETCDF to CSV?

I have a trajectory file from a molecular simulation that is written in netCDF format. I would like to convert this file to .csv format so that I can apply further Python-based analysis of the proximity between molecules. The trajectory file…
Nathan Black
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cant read the netcdf file

I am trying to load netcdf file into R: f <- "A20020012002365.L3b_YR_CHL.nc" u <- "https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/" curl::curl_download(file.path(u, f), f) r <- brick("A20020012002365.L3b_YR_CHL.nc") Error message I get: Error in…
yuliaUU
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Creating a [time,lon,lat] dimension from a multidimensional netcdf

I have this satellite altimetry data (points, not gridded) from Jason that has unusual dimensions: time and meas_index. I would like to have a [time, lon, lat] dimension without affecting the dataset. Currently, the lat and lon are coordinates and I…
anonnetcdf
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Extracting stations data from a netcdf file to csv

I am trying to extract precipitation data from a NetCDF file for 425 points which I have in a CSV file, into a new CSV file. The output CSV file shows all the values as NA. What is the issue and how can I resolve it. I am attaching my code, and a…
Wasif
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NCO : Masking netcdf file using another netcdf mask file with (0 - 1) values

I have two .nc files data.nc and mask.nc. Where: data.nc contain a variable called temp unmasked, while mask.nc contain the mask within a variable called tmask with (0 - 1) values. Using NCO, how can I apply the masking for the data.nc file, such…
Amr Talaat
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View NetCDF metadata without tripping on large file size / format

Summary I need help getting NCO tools to be helpful. I'm running into the error "One or more variable sizes violate format constraints" ... when trying to just view the list of variables in the file with: ncdump -h isrm_v1.2.1.ncf It seems odd to…
dholstius
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HDF error when trying to access variables of Xarray

I have downloaded temperature data from a model. Because I chose the whole temporal range the data was split into different netcdf files. However, when I am trying to access these data for some I get an error which I do not understand. First of all…
Alex
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Convert multidimensional NetCDF to Tif in R

I have .nc file sizing around 651 MB with a couple of datasets (daily) (rr_mrg_19810101_20181231_ENACT.nc) data. I need to convert (rr_mrg_19810101_20181231_ENACT.nc) dataset to multiple GeoTIFF (one .tif for each time slice, monthly). Similarly, i…
Addisu D
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