Off-Nadir Delta

China: Satellite Monitoring & Event Situation

Track recent event signals and monitor China from space — geolocated events, the most active areas, and satellite imagery in one place. Free to browse on the Delta Watchfloor.

Quick answer — what Off-Nadir Delta is

You can monitor China from space on Off-Nadir Delta — viewing Sentinel-1 SAR and Sentinel-2 optical imagery, tracking any area over time with anomaly detection, and overlaying geolocated event signals (from global news media) and active fires. In the past 7 days, 41 event signals were recorded in and around China, most in the natural disaster category.

Signals by category · last 7 days

  • Natural Disaster19
  • Diplomacy9
  • Kinetic9
  • Infrastructure2
  • Maritime2

Recent developments

  • Floods in Nan ProvinceNan Province, Thailand
  • Massive fire at Kolkata hotelPark Street Area, Kolkata, India
  • Heavy Rainfall, Floods, and LandslidesSoutheastern Korea
  • Bulk carrier sinking240 nautical miles off Paradip port, India
  • Torrential rains in southwest ChinaSichuan, China
  • Landslides in UttarakhandUttarakhand, India
  • Airstrike on Myanmar monasterySwel Le Oh village, Sagaing region, Myanmar

Most active areas

Hong Kong · 4Seoul, South Korea · 3New Delhi, India · 3240 nautical miles off Paradip port, India · 1Pyongyang, North Korea · 1ICAR Convention Centre, Pusa, New Delhi, India · 1BJP HQ, Delhi · 1Sarnath, Uttar Pradesh · 1

Event data powered by the GDELT Project. Figures cover the mapped region around China and update hourly. For situational awareness only — not for tracking or targeting individuals.

Why Analysts Watch China From Space

China is a constant subject of open-source satellite analysis: port throughput at Shanghai and Ningbo as a proxy for trade, naval movements opposite Taiwan, seasonal Yangtze flooding, and construction activity at a scale visible from orbit. Nighttime lights add an economic-activity signal that ground reporting cannot.

Typical monitoring angles

  • Ship density in the Taiwan Strait and at major container ports with SAR detection
  • Yangtze and Pearl River flood extent during the summer monsoon with Sentinel-1
  • Industrial-zone and infrastructure build-out tracked in Sentinel-2 time series

Monitor China From Space

Off-Nadir Delta lets you watch China without any GIS software. View Sentinel-1 SAR (all-weather, day or night) and Sentinel-2 optical imagery, draw any area to build a time series with anomaly detection, and overlay active fires.

The Delta Watchfloor adds the event layer: geolocated signals in and around China, ranked by severity, that you can connect to satellite imagery in one tip-and-cue workflow.

Frequently Asked Questions

How can I monitor China with satellite imagery?
On Off-Nadir Delta you can view Sentinel-1 SAR and Sentinel-2 optical imagery over China, draw any area to monitor it over time with anomaly detection, and overlay NASA FIRMS active fires. The Delta Watchfloor also shows geolocated event signals in and around China, so you can connect what is happening on the ground to what satellites see.
Where does the China event data come from?
Geolocated event signals are distilled from global news media — open monitoring of world events — AI-enriched and continuously refreshed. The data is for situational awareness and is not intended for tracking or targeting individuals.
Is monitoring China free?
Browsing the latest event signals on the Watchfloor is free and needs no account. Deeper capabilities — longer history and AI remote-sensing deep-dives — are available on paid plans or metered by tokens. See the pricing page for details.

Track China on the Watchfloor

See the latest event signals for China and monitor any area from space — free to start.

From headline to satellite evidence

One connected intelligence workflow across four surfaces — free to start, no GIS software or remote-sensing background required.