Each disaster is read differently.
The satellites and indices TERRASENSE uses for typhoons, heavy rain, drought, hail and cold snaps, and what still needs a field check.
By type
What we look at
| Disaster | Main signal | Satellite and index | Check in the field |
|---|---|---|---|
| Typhoon | Sharp growth loss, flooding, suspected lodging | Sentinel-2 ΔNDVI + Sentinel-1 flood | Lodging, fruit drop, flood marks |
| Heavy rain | Flooded cells, later growth loss | Sentinel-1 flood + Sentinel-2 ΔNDVI | Flood extent and duration, silt |
| Drought | Water stress, growth lag | Sentinel-2 NDMI and NDVI, degree-days and rainfall | Wilting, irrigation |
| Hail | Growth loss | Sentinel-2 ΔNDVI | Leaf and fruit wounds |
| Cold snap | Growth lag | Sentinel-2 NDVI vs. expected | Cold symptoms by growth stage |
TERRASENSE is a satellite first screening of suspected damage. It does not replace the crop-insurance loss assessment: the loss rate and indemnity are confirmed by a certified loss assessor in the field.
In the field
What it looks like on the ground.
Satellites look wide first; field photos confirm the cause. The images below are illustrations.
FAQ
Frequently asked questions
Can satellites see greenhouse damage?
Crops inside greenhouses are hard to see from orbit; greenhouse damage needs a field check.
How is a disaster registered?
Pick the date it passed and the fields affected; the before and after images are found and compared automatically.
What about long disasters?
For drought and other slow events, combine the water-stress and growth-lag signals from everyday growth screening.
Work with us
See your county’s fields from orbit, before the next storm.
We start with a satellite screening of your area from public data, then compare the results with your own field survey records. No equipment goes in the field.