README.md

SRTM4 (Shuttle Radar Topography Mission)

Download and parsing of SRTM4 elevation data.

Carlo de Franchis, Enric Meinhardt, Gabriele Facciolo, CMLA 2018

Installation and dependencies

The main source code repository for this project is https://github.com/centreborelli/srtm4. It is written in Python. It is tested with Python 3.7, 3.8, 3.9 and 3.10.

srtm4 requires libtiff development files. They can be installed with apt-get install libtiff-dev (Ubuntu, Debian) or brew install libtiff (macOS).

Once libtiff is installed, srtm4 can be installed with pip:

pip install srtm4

Usage

In a Python interpreter:

>>> import srtm4
>>> longitude, latitude = 2, 48
>>> altitude = srtm4.srtm4(longitude, latitude)
>>> print(altitude)  # should be 174.613 (altitude in meters above the WGS84 ellipsoid)

In a shell:

GEOID_PATH=data ./bin/srtm4 2 48

For the crop function, if pyproj complains about the download of file, you can fix it manually with the command:

pyproj sync -v --file us_nga_egm96_15