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Utility to search and download Copernicus Sentinel satellite images

Project description

sentinelsat

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Sentinelsat makes searching, downloading and retrieving the metadata of Sentinel satellite images from the Copernicus Open Access Hub easy.

It offers an easy-to-use command line interface

sentinelsat -u <user> -p <password> -g <search_polygon.geojson> --sentinel 2 --cloud 30

and a powerful Python API.

from sentinelsat import SentinelAPI, read_geojson, geojson_to_wkt

api = SentinelAPI('user', 'password')
footprint = geojson_to_wkt(read_geojson('search_polygon.geojson'))
products = api.query(footprint,
                     producttype='SLC',
                     orbitdirection='ASCENDING')
api.download_all(products)

Documentation is published at http://sentinelsat.readthedocs.io/.

Installation

Install sentinelsat through pip:

pip install sentinelsat

Usage

Sentinelsat provides a Python API and a command line interface to search, download and retrieve the metadata for Sentinel products.

Python Library

from sentinelsat.sentinel import SentinelAPI, read_geojson, geojson_to_wkt
from datetime import date

# connect to the API
api = SentinelAPI('user', 'password', 'https://scihub.copernicus.eu/dhus')

# download single scene by known product id
api.download(<product_id>)

# search by polygon, time, and Hub query keywords
footprint = geojson_to_wkt(read_geojson('map.geojson'))
products = api.query(footprint,
                     date = ('20151219', date(2015, 12, 29)),
                     platformname = 'Sentinel-2',
                     cloudcoverpercentage = (0, 30))

# download all results from the search
api.download_all(products)

# GeoJSON FeatureCollection containing footprints and metadata of the scenes
api.to_geojson(products)

# GeoPandas GeoDataFrame with the metadata of the scenes and the footprints as geometries
api.to_geodataframe(products)

# Get basic information about the product: its title, file size, MD5 sum, date, footprint and
# its download url
api.get_product_odata(<product_id>)

# Get the product's full metadata available on the server
api.get_product_odata(<product_id>, full=True)

Valid search query keywords can be found at the Copernicus Open Access Hub documentation.

Command Line Interface

A basic search query consists of a search area geometry as well as the username and password to access the Copernicus Open Access Hub.

sentinelsat -u <user> -p <password> -g <geojson>

Search areas are provided as GeoJSON files, which can be created with QGIS or geojson.io. If you do not specify a start and end date only products published in the last 24 hours will be queried.

Example

Search and download all Sentinel-1 scenes of type SLC, in descending orbit, for the year 2015.

sentinelsat -u <user> -p <password> -g <search_polygon.geojson> -s 20150101 -e 20151231 -d \
--producttype SLC -q "orbitdirection=Descending" \
--url "https://scihub.copernicus.eu/dhus"

Username, password and DHuS URL can also be set via environment variables for convenience.

# same result as query above
export DHUS_USER="<user>"
export DHUS_PASSWORD="<password>"
export DHUS_URL="https://scihub.copernicus.eu/dhus"

sentinelsat -g <search_polygon.geojson> -s 20150101 -e 20151231 -d \
--producttype SLC -q "orbitdirection=Descending"

Options

-u –user TEXT Username [required] (or environment variable DHUS_USER)
-p –password TEXT Password [required] (or environment variable DHUS_PASSWORD)
  –url TEXT Define another API URL. Default URL is ‘https://scihub.copernicus.eu/apihub/’.
-s –start TEXT Start date of the query in the format YYYYMMDD.
-e –end TEXT End date of the query in the format YYYYMMDD.
-g –geometry PATH Search area geometry as GeoJSON file.
  –uuid TEXT Select a specific product UUID instead of a query. Multiple UUIDs can separated by commas.
  –name TEXT Select specific product(s) by filename. Supports wildcards.
  –sentinel   Limit search to a Sentinel satellite (constellation).
  –instrument   Limit search to a specific instrument on a Sentinel satellite.
  –producttype   Limit search to a Sentinel product type.
-c –cloud INT Maximum cloud cover in percent. (requires –sentinel to be 2 or 3)
-o –order-by TEXT Comma-separated list of keywords to order the result by. Prefix ‘-‘ for descending order.
-l –limit INT Maximum number of results to return. Defaults to no limit.
-d –download   Download all results of the query.
  –path PATH Set the path where the files will be saved.
-q –query TEXT Extra search keywords you want to use in the query. Separate keywords with comma. Example: ‘producttype=GRD,polarisationmode=HH’.
-f –footprints   Create geojson file search_footprints.geojson with footprints of the query result.
  –version   Show version number and exit.
  –help   Show help message and exit.

Tests

To run the tests on sentinelsat:

git clone https://github.com/sentinelsat/sentinelsat.git
cd sentinelsat
pip install -e .[test]
py.test -v

By default, prerecorded responses to Copernicus Open Access Hub queries are used to not be affected by its downtime. To allow the tests to run actual queries against the Copernicus Open Access Hub set the environment variables

export DHUS_USER=<username>
export DHUS_PASSWORD=<password>

and add --vcr disable to py.test arguments. To update the recordings use either --vcr record_new or --vcr reset.

Documentation

To build the documentation:

git clone https://github.com/sentinelsat/sentinelsat.git
cd sentinelsat
pip install -e .[docs]
cd docs
make html

The full documentation is also published at http://sentinelsat.readthedocs.io/.

Changelog

See CHANGELOG. You can also use Githubs compare view to see the changes in the master branch since last release.

Contributors

We invite anyone to participate by contributing code, reporting bugs, fixing bugs, writing documentation and tutorials and discussing the future of this project. Please check CONTRIBUTE.rst.

For a list of maintainers and contributors please see AUTHORS.rst and the contributor graph.

License

GPLv3+

Project details


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