disaster response
4 articlesFlood Monitoring with Sentinel-1 SAR Time Series: Tracking Inundation from Space
SAR backscatter time series from Sentinel-1 detects flood onset, peak inundation, and recession through clouds. Learn how VV backscatter drops indicate flooding, how to set up continuous flood monitoring zones, and how to interpret SAR time series for disaster response.
2026-04-11 · 9 min read
Post-Disaster Recovery Monitoring with Satellite Time Series
Satellite time series monitoring tracks the recovery trajectory after floods, earthquakes, wildfires, and other disasters. Learn how NDVI, SAR backscatter, NDWI, and nighttime lights collectively reveal what has recovered, what has not, and where recovery is lagging.
2026-04-04 · 8 min read
Active Fire Monitoring with NASA FIRMS: Real-Time Hotspot Detection from Space
NASA FIRMS provides near real-time fire hotspot data from VIIRS and MODIS satellites. Learn how active fire monitoring works, what the data shows, and how to use it in Off-Nadir Delta for wildfire tracking and disaster response.
2026-02-10 · 7 min read
Mapping Floods with SAR: A Practical Workflow from Search to Analysis
Step-by-step guide to delineating flood extent using Sentinel-1 SAR data. Covers pre-event baseline selection, backscatter thresholding, and common interpretation mistakes to avoid.
2025-12-10 · 7 min read