Xee: Xarray + Google Earth Engine

An Xarray extension for Google Earth Engine.

How to use

Install with pip (distributions on PyPi will come soon):

pip install git+https://github.com/google/xee.git

Then, authenticate Earth Engine:

earthengine authenticate --quiet

Next, initialize the EE client with the high volume API:

ee.Initialize(opt_url='https://earthengine-highvolume.googleapis.com')

Open any Earth Engine ImageCollection by specifying the Xarray engine as 'ee':

ds = xarray.open_dataset('ee://ECMWF/ERA5_LAND/HOURLY', engine='ee')

Open all bands in a specific projection (not the Xee default):

ds = xarray.open_dataset('ee://ECMWF/ERA5_LAND/HOURLY', engine='ee',
                         crs='EPSG:4326', scale=0.25)

Open an ImageCollection (maybe, with EE-side filtering or processing):

ic = ee.ImageCollection('ECMWF/ERA5_LAND/HOURLY').filterDate('1992-10-05', '1993-03-31')
ds = xarray.open_dataset(ic, engine='ee', crs='EPSG:4326', scale=0.25)

Open an ImageCollection with a specific EE projection or geometry:

ic = ee.ImageCollection('ee://ECMWF/ERA5_LAND/HOURLY').filterDate('1992-10-05', '1993-03-31')
leg1 = ee.Geometry.Rectangle(113.33, -43.63, 153.56, -10.66)
ds = xarray.open_dataset(
    ic,
    engine='ee',
    projection=ic.first().select(0).projection(),
    geometry=leg1
)

Open multiple ImageCollections into one xarray.Dataset, all with the same projection:

ds = xarray.open_mfdataset(['ee://ECMWF/ERA5_LAND/HOURLY', 'ee://NASA/GDDP-CMIP6'],
                           engine='ee', crs='EPSG:4326', scale=0.25)

See examples/ or docs for more uses and integrations.

License

This is not an official Google product.

Copyright 2023 Google LLC

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.