vesnikos / sentinelsat

Utility to search and download Copernicus Sentinel satellite images

sentinelsat

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

sentinel search --sentinel 2 --cloud 30 user password search_polygon.geojson

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

# connect to the API
from sentinelsat.sentinel import SentinelAPI, read_geojson, geojson_to_wkt
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 SciHub query keywords
footprint = geojson_to_wkt(read_geojson('map.geojson'))
products = api.query(footprint,
                     '20151219', date(2015, 12, 29),
                     platformname = 'Sentinel-2',
                     cloudcoverpercentage = '[0 TO 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_geopandas(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 polygon as well as the username and password to access the Copernicus Open Access Hub.

sentinel search [OPTIONS] <user> <password> <geojson>

Search areas are provided as GeoJSON polygons, 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.

sentinel search -s 20150101 -e 20151231 -d \
--producttype SLC -q "orbitdirection=Descending" \
-u "https://scihub.copernicus.eu/dhus" <user> <password> poly.geojson

Options

-s	--start	TEXT	Start date of the query in the format YYYYMMDD.
-e	--end	TEXT	End date of the query in the format YYYYMMDD.
-d	--download		Download all results of the query.
-f	--footprints		Create geojson file search_footprints.geojson with footprints of the query result.
-p	--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'.
-u	--url	TEXT	Define another API URL. Default URL is 'https://scihub.copernicus.eu/apihub/'.
	--md5		Verify the MD5 checksum and write corrupt product ids and filenames to corrupt_scenes.txt.
	--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. (Automatically sets --sentinel2)
	--help		Show help message and exit.
	--version		Show version number 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 SENTINEL_USER=<username>
export SENTINEL_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.

Contributors

• Wille Marcel
• Kersten Clauss
• Martin Valgur
• Jonas Sølvsteen
• Luca Delucchi

License

GPLv3+