CAP Area Monitoring

Under the reformed Common Agricultural Policy, paying agencies verify farmers’ claims with satellite evidence instead of by sampling field visits: every eligible parcel, every season, monitored continuously from Copernicus data. That moved an entire national administrative process onto Earth observation by regulation rather than by choice, which is what makes it the largest institutional market for this kind of work in Europe.

Given the declared parcels, the service builds a profile of each one through the season from radar and optical imagery, determines the crop group actually grown, and detects whether the required activity took place: mowing, harvest, ploughing, a catch crop established. Radar carries most of the timing questions, because a mowing event is a drop in backscatter that does not wait for a clear sky, and a deadline that falls in a cloudy fortnight is exactly when an optical-only system goes quiet.

Each parcel comes back green where the evidence is consistent with the declaration, red where it contradicts it, and yellow where automated evidence cannot settle it and a human has to look. The yellow rate is the number that decides whether the system saves an agency money: too aggressive and it defends wrong decisions, too cautious and everything queues for an inspector. Confidence per parcel and per marker, with the supporting evidence retained, is what allows that threshold to be tuned deliberately instead of discovered after the season.