Scientist friendly Python toolbox for processing 2D satellite Earth observation data.
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Nansat is a scientist friendly Python toolbox for processing 2D satellite earth observation data.

The main goal of Nansat is to facilitate:

  • easy development and testing of scientific algorithms,
  • easy analysis of geospatial data, and
  • efficient operational processing.

You can find a detailed description of Nansat in our paper published in Journal of Open Research Software in 2016.

... and you can join the mailing list.

We appreciate acknowledgments of Nansat. Please add a reference to the following paper if you use Nansat in scientific publications:

Korosov A.A., Hansen M.W., Dagestad K.-F., Yamakawa A., Vines A., Riechert M., (2016). Nansat: a Scientist-Orientated Python Package for Geospatial Data Processing. Journal of Open Research Software. 4(1), p.e39. DOI:


You will find complete documentation for Nansat at Read the Docs.


You will find information about contributing to Nansat at Read the Docs.


The easiest way to install Nansat on any platform is to use Anaconda (download installer).

# install Nansat and requirements from the conda-forge channel
conda create -n py3nansat -c conda-forge nansat

Activate and work in the nansat environment

# download a test file

# activate the py3nansat environment
source activate py3nansat

# start python and work with Nansat
# import main file opener
from nansat import Nansat

# open a test file
n = Nansat('stere.tif')

# see file content
print n

# view file footpring

# create RGB with auto-stretched histogram
n.write_figure('stere_rgb.png', [1,2,3], clim='hist')


Nansat is outfitted with unittests, which you can use to ensure that all functionality works on your platform.

# install testing packages from conda-forge
conda install -c conda-forge nose mock

# run nansat.tests
nosetests nansat

# Run all tests including nansat_integration_tests with coverage
cd <nansat_repository_folder>
nosetests -w . --with-coverage --cover-package=nansat

Fore more information see Read the Docs or notebooks for Nansat lectures


The project is licensed under the GNU general public license version 3.


Development is supported by the Research Council of Norway as a part of NORMAP project (grant no. 195397/V30).