Introduction

The goal is the development of Python GRASS modules for the automatic download, processing and analysis of Sentinel-1 data. All modules can be executed in GRASS or in a terminal. The aim of this work was that a user can process all data without much effort and import them directly into GRASS GIS for further analysis. By entering certain metadata you can use this module to search for newly processed files and import them into a database.

Here is an overview of the content:

  • A simple module that import Scripts from a package to GRASS GIS script directory.
  • Database management modules where it is possible to create create entire databases or mapsets.
  • Data download including basic adjustments for Sentinel-1 with sentinelsat.
  • A SAR pre-processing add-on for GRASS GIS based on SNAP processing workflow which uses pyroSAR.
  • Modules to import all files in a directory by considering a certain pattern. Moreover, it is possible to import these data in different mapsets.
  • A module that can import pyroSAR dataset in a directory based on their metadata.
  • Creation of space-time cube.

The package pyroSAR and sentinelsat is used for the pre-processing and download of sentinel data.

Modules

This packages include the following modules:
  • i.script: A simple module that import Scripts from a package to GRASS GIS script directory.
  • g.database: Create a GRASS GIS Database.
  • g.c.mapset: Create a mapset in a GRASS GIS Database if it is not existent.
  • s1.download: Data download including basic adjustments for Sentinel-1 with sentinelsat.
  • i.dr.import: Import data into a mapset from a file by considering a certain pattern.
  • i.fr.import: Import pyroSAR datasets in a directory based on their metadata.
  • pr.geocode: Wrapper function for geocoding SAR images using pyroSAR.
  • t.c.register: Creation of Sentinel-1 space-time cube.