Questions tagged [xarray]
xarray is a Python module for working with N-dimensional arrays
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QGIS crashes with "bad_alloc" when processing NetCDF file using xarray
I need to merge multiple NetCDF files in a QGIS plugin I am developing. I'm using xarray to do so, however, QGIS crashes with the error "Critical: Caught unhandled std::exception: std::bad_alloc&...
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Change dtype of coordinates NetCDF
I was wondering how to change the dtype from float32 to float64 of coordinates.
I can run the following code in the terminal
ncap2 -s 'lat=double(lat); lon=double(lon)' infile.nc outfile.nc
How ever ...
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Transform ee.ImageCollection to xr.Dataset in Python (via Colab)
I am trying to transform an ee.ImageCollection (Landsat) for a Region of Interest into an xr.Dataset so I can further process the data and ultimately export as a .csv. I have tried using the library ...
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Extract nearest values from NetCDF file in Python
I have a NetCDF database (link to file) obtained from Copernicus Climate Data of ~43k unevenly spaced values around the world. Instead of being indexed using (lat, lon) it uses a sequence of 'stations'...
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How to open NetCDF4-CF files from SMAP in xarray
I've downloaded a list of netCDF4-CF files from SMAP (Following this guide in jupyter notebook) to get daily soil moisture data over 2020 in South Sudan. The result is a series of .nc files that I ...
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Landsat from Planetary Computer unexpectedly turns up all no data in some regions
Using some code that gathers Landsat 8 collections from Microsoft Planetary Computer into Open Data Cube xarray using a stac search works fine in some regions but in others returns all nan values. ...
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Loading geospatial datasets with rioxarray
I'm using xarray to open and reproject some .grib files. The files have x, y, and time dimensions and contain several data variables. However, I have some issues with loading the data.
Loading them ...
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Extending raster after rasterizing geodataframe using geocube
I have created rasterized a geodataframe using geocube make_geocube.
The resulting xr.Dataset now has the extent of the underlying geodataframe vector data.
Say, the bounding box would be covering ...
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GeoTIFF from Dataset is very weight and with three bands instead of one
I need to compute the NDVI from an xarray Dataset created using this solution. I've used a for loop to read all the GeoTIFFs in my folder and the result is this:
<xarray.Dataset>
Dimensions: ...
- 950
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Memory filled with Xarray concat function
I'm facing in trouble related to the limit of my RAM. On my PC I have 32GB of RAM that is totaly filled from the concat of some DataArray.
I've create e simple function below to read a single band of ...
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Using Python (in Colab), how to convert a multiband ee.Image into an ee.ImageCollection?
I ultimately want to convert an ee.Image to an xarray object so I can further process the data.
I know the library wxee can do that with ee.ImageCollection.wx.to_xarray(). However, it requires an ee....
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Saving extracted array into new NetCDF file
I have a NetCDF file which looks like this:
<xarray.Dataset>
Dimensions: (time: 180, d2: 2, lat: 180, lon: 360)
Coordinates:
* time (time) object 2000-01-15 12:00:00 ... 2014-12-15 12:...
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Using rioxarray clip_box function does not return anything
I am trying to clip an xarray dataarray (or dataset, either one) to a bounding box using the rioxarray clip_box() function. My dataarray is 24 hours of temperature data for the continental US. My ...
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Interpolate irregularly sampled data to a regular grid
I'm using .nc files with spatially referenced timeseries data in xarray, i.e. inherently 3-dimensional data (lat, lon, time). My issue is, that the dataset's coordinates lat and lon are merged to a ...
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Saving plot from .nc file without showing the plot
I am trying to save the sequence of plots of 24 hours of ERA5 data from .nc file without plotting them. I am using xarray for reading .nc data. Here is my code:
import xarray as xr
import matplotlib....
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