Please note: The algorithm descriptions in English have been automatically translated. Errors may have been introduced in this process. For the original descriptions, go to the Dutch version of the Algorithm Register.
Harvesting algorithm
- Publication category
- Impactful algorithms
- Impact assessment
- DPIA
- Status
- In use
General information
Theme
Begin date
Contact information
Link to publication website
Responsible use
Goal and impact
The algorithm helps make the annual CAP grant application better. It checks whether the applicant's information is correct. If something is incorrect, the applicant is notified.
Considerations
Since 2023, the Area Monitoring System (AMS) has been mandatory for monitoring land-related schemes. This is stated in Article 7 of a European law (EU 2022/1173). Using satellite images is the most efficient way to do this automatically. The applicant can also provide their own evidence and may later object if they disagree with something.
Human intervention
If the algorithm finds a discrepancy, an employee first looks at the result. If the clerk agrees with the deviation, he will let the requester know. The applicant can then send evidence via a special app (the geotag photo app) to show that it might be right after all.
Risk management
The quality of the algorithm is tested annually. This is done on the basis of samples. And a mandatory quality test that has to be reported to the European Commission.
Links to legal bases
Impact assessment
Operations
Data
Functional_id, declared crop code, geometry, application number (declaration of relationship data for a CAP grant application, Satellite data).
Links to data sources
- BRP Crop plots: https://www.pdok.nl/introductie/-/article/basisregistratie-gewaspercelen-brp-
- Copernicus Data Space Ecosystem: https://dataspace.copernicus.eu/
Technical design
The harvest marker is used to determine when a crop has been harvested on arable land. Two types of satellite data are used for this purpose: radar images (coherence) and optical images (NDVI). Each type uses a different method to identify a harvest moment.
The radar-based marker looks at changes in the signal from different satellite orbits. Only the most reliable data is used. If clear peaks in the signal are visible at several times, this may indicate a harvest.
The NDVI-based marker looks at whether the crop first grew well and then declined sharply. If the decline is large enough and does not recover quickly, this is seen as a harvest moment. Both methods use fixed rules and do not learn themselves from new situations.
External provider
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