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Good practice Imported

Slovenia's National CAP Monitoring — Sentinel-2 Satellites Replace Most Farm-Subsidy Site Visits

Slovenia · Ljubljana · See the Slovenia profile · See the Ljubljana profile

Evidence: Observational / pre–post Top 7% 87/100 · Ask Evidence Copilot about this practice

Slovenia's agricultural payments agency checks EU farm-subsidy compliance for over a million parcels every two weeks using Sentinel-2 satellite time series and machine-learning classification, finding about 98% automatically compliant.

1,000,000+ parcels
Parcels evaluated (2022 claim year)
98 %
Parcels automatically confirmed compliant (green) (2022 claim year)
1 %
Parcels referred to human review or on-site visit (yellow/red) (2022 claim year)
15 of 66
EU paying agencies using Copernicus data for any scheme (2019)
2 weeks
Monitoring frequency through growing season
7
Analytical markers used
Slovenia's National CAP Monitoring — Sentinel-2 Satellites Replace Most Farm-Subsidy Site Visits

Details

Maturity
Established
Promoter
Agencija za kmetijske trge in razvoj podeželja (ARSKTRP)
Period
2022 claim year–present
Keywords
agriculture, subsidy compliance, remote sensing, earth observation

Context

Slovenia's ARSKTRP (Agency for Agricultural Markets and Rural Development) implements the EU Common Agricultural Policy's 'checks by monitoring' approach using free Copernicus Sentinel-2 satellite imagery, processed through the Sentinel Hub API with European Space Agency support, to verify farmers' subsidy-claim parcels against declared land use and crop type — replacing most on-site inspection visits.

Activities

The system runs cloud-filtering, spectral-index and time-series analysis roughly every two weeks through the growing season. Seven analytical markers — including homogeneity, minimal agricultural activity, mowing detection, bare-soil presence and a machine-learning crop classifier — feed a 'traffic light' verdict per parcel.

Results

In the 2022 claim year the system evaluated more than one million individual parcels: about 98% were automatically confirmed compliant (green), with roughly 1% referred to human expert judgement or an on-site visit (yellow/red).

Conclusions

The European Court of Auditors' 2020 special report found adoption of 'checks by monitoring' uneven across the EU — only 15 of 66 paying agencies used Copernicus data for any scheme in 2019 — making Slovenia's subsequent national rollout a notable case of moving from partial pilot to comprehensive, recurring, whole-country coverage.

Implementation
Indicative cost
Medium (€50k–€500k)
Time to results
Long (> 3 years)
Staffing & skills
ARSKTRP administrative/technical staff operating the monitoring system, Human experts reviewing yellow/red flagged parcels, On-site inspectors for red-flagged cases

Conditions for success

  • Free access to Copernicus Sentinel-2 imagery and the Sentinel Hub API
  • European Space Agency technical support
  • High-quality parcel-declaration data to match against imagery
  • Regular (roughly bi-weekly) processing cadence through the growing season

Common failure modes

  • EU-wide adoption remains uneven per the ECA's 2020 report (only 15 of 66 paying agencies used Copernicus data in 2019), suggesting replication is not automatic
  • System depends on cloud-free imagery availability, which can affect monitoring cadence

Commonly funded by

National / regional programmes

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Data sources

Where this practice's information was retrieved from, and when.

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