Questions tagged [xarray]
xarray is a Python module for working with N-dimensional arrays
135
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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 ...
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How to stack list of Xarrays
I have a folder with 4 .tiff (GeoTiff) files. Each of these contains two layers (the spectral band and a mask). I'm able to create a list containig each image using xarray.open_rasterio.
Now I need to ...
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Error trying to open NetCDF file with xarray from s3 bucket
I'm trying to open a .nc file from an S3 bucket using xarray, but I'm getting an error. Here's the method I'm using:
import xarray as xr
aws_url = 's3://nasanex/NEX-GDDP/BCSD/rcp85/day/atmos/tasmax/...
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Xarray mean for climatologies use min_count as in xarray sum
Why there is not implemented in xr.mean() a parameter for minimum count of valid data accross arrays? As in xr.sum() for example. I have a certain situation where I want to compute climatologies and I'...
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Wrong results using xarray groupby to calculte anomalies
I want to compute ten days anomalies based on MODIS NDSI. The data is stored as a GeoTIFF. For this task I have two folders, one with the reference period of 2001-2020 and one with 2001-2022 for which ...
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How to save an xarray.DataArray directly as a Cloud Optimized GeoTIFF?
Is there a good way to produce a cloud-optimized GeoTIFF (https://www.cogeo.org) directly from an xarray.DataArray? At the moment it takes me a couple of steps to produce an intermediate regular ...
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Plotting Open Data Cube xarray data with two or more measurement parameters in the same axis
How can I plot the two measurement parameters (seasonal cover and permanent water cover) in the same axis as I want to compare them?
I have this code:
#load the cgls product
ds_cgls_builtcover = dc....
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Create new column containing values of a xarray variable selected by point coordinates
I have a xarray and a geodataframe. I want to extract spi_1 values of xarray from point geometries of geodataframe by creating a new column spi_1 in geodataframe.
print(xr)
<xarray.DataArray '...
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xarray NetCDF with groups to GeoTIFF
I am trying to convert NetCDF files, available from this link, to raster or geotiff files using Python 3. After reading the a NetCDF file using the package netcdf4, it appears to have groups: CO2, ...
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Is there a rioxarray version of xarray pad
I have a geocoded raster that I'd like to pad with NaNs to 64 x 64 pixels. I've tested rioxarray.DataArray.pad_box(), which does work, but it's a bit complex to calculate new bounding box corners that ...
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Value error when merging .nc files: xarray could not find any dimension coordinates to use to order the datasets for concatenation
I want to merge multiple .nc files into one. Each of the .nc files corresponds to a timestep which should be added together to have one .nc file with all data for all dates.
When I execute the ...
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rio.write_crs() leaves empty crs
I have a dataset ds which looks like this:
<xarray.Dataset>
Dimensions: (time: 42, long: 1383, lat: 586)
Coordinates:
* time (time) datetime64[ns] 1979-01-01 1980-01-01 ... 2020-...
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How to add a band to xarray dataset using rioxarray
I have two datasets, both rasters, which I would like to combine into 1 raster. This should not be difficult, but I'm having a hard time.. Both have the same extent/resolution etc.
One raster has 231 ...
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Transforming GPM Precip Data using rioxarray
I am working with GPM Precip data on a hydrologic study and I am having a hard time figuring out why the netcdf files I downloaded are giving me issues when I try and map the data.
I am still learning ...
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How to fix rioxarray.exceptions.DimensionMissingCoordinateError: x missing coordinates?
I'm trying to reproject a NetCDF file without an assigned projection. I was successful in assigning projection. But, while attempting to reproject the file, I receive the following error: rioxarray....
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