#Change detection

2 posts

Tutorial Python

Earthquake damage mapping with Sentinel-1 in Python: log ratio and z-scores in Antakya

Map earthquake damage from free Sentinel-1 radar in Python. Compute the log ratio and a z-score against a pre-event stack for Antakya after the February 2023 Türkiye earthquakes, aggregate to a 200 m grid, and score the map against 730 destroyed buildings mapped in OpenStreetMap.

Intermediate 14 min read 23 October 2026

Tutorial Python

Sentinel-1 soil moisture in Python: change detection checked against COSMOS-UK

Estimate surface soil moisture from free Sentinel-1 radar in Python with the TU Wien change-detection method. Build dry and wet references per orbit, map relative soil moisture at 100 m, and test it honestly against four COSMOS-UK stations and their rain gauges.

Intermediate 13 min read 23 October 2026