Off-Nadir Delta

disaster

6 articles

SAR Coherence for Change Detection: Finding What Changed Without Optical Data

How SAR coherence maps reveal surface changes even through clouds and at night. Understand temporal coherence, its relationship to surface stability, and practical applications in disaster assessment and construction monitoring.

2026-02-04 · 8 min read

Rapid Damage Mapping: The Satellite Workflow from Disaster to Decision

The end-to-end workflow for satellite-based rapid damage mapping — from disaster trigger to actionable map products. Covers activation protocols, data acquisition, analysis methods, product standards, and delivery timelines.

2025-09-13 · 9 min read

Post-Disaster Infrastructure Assessment: Roads, Bridges, and Lifelines from Space

How satellite imagery assesses damage to transportation networks, power systems, and critical infrastructure after natural disasters. Covers optical and SAR methods, accessibility analysis, and recovery monitoring.

2025-09-10 · 7 min read

Landslide Detection and Monitoring with Satellite Data

How optical and SAR satellites detect landslides after they occur and monitor slow-moving slopes before catastrophic failure. Covers InSAR displacement monitoring, optical scar mapping, and susceptibility assessment.

2025-09-01 · 7 min read

Hurricane and Typhoon Tracking with Satellites: From Formation to Landfall

How geostationary and polar-orbiting satellites monitor tropical cyclones through their entire lifecycle. Covers the Dvorak technique, microwave imagery, SAR ocean surface winds, and post-landfall damage assessment.

2025-08-29 · 9 min read

Earthquake Damage Assessment from Satellite Imagery: Rapid Response from Space

How satellite data supports earthquake damage assessment within hours of an event using SAR coherence, optical change detection, and building damage proxy maps. Covers operational workflows and real-world case studies.

2025-08-26 · 10 min read