A Zoom Earth Alternative for Analysis & Monitoring
Zoom Earth is great for live weather. When you need to analyze high-resolution imagery, monitor areas over time, and connect world events to what satellites see, Off-Nadir Delta picks up where a live map stops.
Quick Answer: Zoom Earth specializes in near-real-time weather and hazard imagery from geostationary satellites. Off-Nadir Delta is an alternative for analysis and monitoring: high-resolution Sentinel-1 SAR and Sentinel-2 optical imagery, area monitoring over time with anomaly detection, NASA FIRMS active fires, and an event-intelligence layer that fuses world events with satellite imagery — all free to start in the browser.
Which one do you need?
Choose Zoom Earth for…
Live weather, storm and hurricane tracking, and watching current conditions with near-real-time geostationary imagery.
Choose Off-Nadir Delta for…
Analyzing high-resolution imagery, monitoring areas over time with anomaly detection, and connecting geolocated world events to satellite imagery.
Event Intelligence
The Watchfloor maps geolocated world events and ranks them by severity — a situational picture, not just weather.
High-Res Analysis Imagery
Sentinel-2 optical (10m) and Sentinel-1 SAR (all-weather) for real analysis, not only geostationary frames.
Monitor Over Time
Track any area as a time series with automatic ±2σ anomaly detection.
Active Fires
NASA FIRMS hotspots overlaid on imagery — then monitor burn extent and recovery over time.
Events × Imagery
Move from a reported event to imagery of the affected area in one tip-and-cue workflow.
Free & Browser-Based
No install, free to start, and the Watchfloor is public to browse.
How It Works
Start with the global picture
Open the Watchfloor to see geolocated world events and active fires worldwide — a situational picture, not just a weather layer.
Pick an area to analyze
Draw any polygon and pull Sentinel-1 SAR and Sentinel-2 optical imagery — high-resolution analysis data, not only geostationary weather frames.
Track it over time
Build a time series of vegetation, water, surface change, or nighttime lights, with automatic anomaly detection when readings deviate from the baseline.
Connect events to imagery
When something happens, move from the reported event to satellite imagery of the affected area in the same workflow.
Frequently Asked Questions
What is Zoom Earth best for?▼
How is Off-Nadir Delta different?▼
Can I still track wildfires?▼
Is it free and browser-based?▼
Does it show high-resolution imagery?▼
Related Resources
Active Fire Map
Live NASA FIRMS wildfire hotspots
Learn moreSituational Awareness Dashboard
Track global events from space
Learn moreSatellite Area Monitoring
Track any area over time
Learn moreSentinel-1 SAR Viewer
All-weather radar imagery
Learn moreFlood Mapping with SAR
Map floods through clouds
Learn moreGlobal Situation Brief
Daily worldwide event summary
Learn moreSee More Than the Weather
Analyze high-resolution imagery, monitor any area over time, and connect world events to what satellites see — free to start.