Off-Nadir Delta

infrastructure

5 articles

What Is a Thermal Anomaly? Telling an Unusual Heat Source from a Routine Flare in Satellite Data

A thermal anomaly is a satellite pixel flagged as hot. At a refinery or power plant most of them are routine. How NASA separates static heat sources, and how to compare a heat source with its own past.

2026-10-06 · 10 min read

Ground Subsidence Monitoring with InSAR: Detecting Sinking Cities from Space

How satellite InSAR measures ground subsidence caused by groundwater extraction, mining, and natural processes at millimeter precision. Covers PS-InSAR methodology, global hotspots, and infrastructure risk assessment.

2025-09-27 · 8 min read

Solar Farm Detection and Mapping from Satellite Imagery

How satellite data identifies and monitors solar photovoltaic installations using spectral signatures, geometric patterns, and change detection. Covers mapping methods, global datasets, and applications in energy transition monitoring.

2025-09-24 · 7 min read

Construction Monitoring from Satellite Imagery: Tracking Projects from Space

How satellite imagery monitors construction progress at infrastructure projects, mining operations, and development sites. Covers change detection methods, temporal baselines, and practical applications in project verification.

2025-09-21 · 8 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