Data sources
Data sources
Everything this site presents comes from one of these origins. Where there is measurement, the source, resolution and period are named; where there is estimation, it is said to be an estimate.
| Data | Source | Resolution and period | Where it appears |
|---|---|---|---|
| Sentinel-2 L2A Vegetation and moisture indices (NDVI, EVI, NDMI, NDWI, NBR) and the land-cover class of each 20 m cell | Copernicus · ESA, via Copernicus Data Space Ecosystem | 10 m · composto de verão | Territory |
| Copernicus DEM GLO-30 Elevation, slope and aspect per cell — the basis of both the stratification and the cultivar zoning | Copernicus · ESA, via Copernicus Data Space Ecosystem | 30 m | Territory |
| Reanálise ERA5-Land Daily temperatures: seasonal averages, chill hours, growing degree days and late frosts | ECMWF, através do arquivo histórico da Open-Meteo | ≈ 11 km, corrigida para a altitude do ponto · 2016–2025 | Territory |
| Reanálise ERA5 Rainfall and reference evapotranspiration, for the water balance and irrigation requirement | ECMWF, através do arquivo histórico da Open-Meteo | ≈ 28 km · 2016–2025 | Territory |
| SoilGrids 2.0 pH, texture, stoniness, organic carbon and cation exchange capacity, by horizon | ISRIC — World Soil Information | 250 m | Territory |
| Orientação Técnica AG PEPACC/OT n.º 27/C.2.1.1/2025 Pistachio yield curve and the cost references underpinning the financial model | PEPAC — Plano Estratégico da PAC | variante de 286 plantas/ha | Production |
| Proposta de fornecedor Price of planting material, stakes, guards and fixings — the only CAPEX figure that is not an estimate | documento não publicado | 2026 | Investment |
| Informação dos promotores Land assembled, water and electricity availability, structure and expansion assumptions | levantamento próprio | — | Territory |
| Ortofoto e medições de área Digitisation of parcel boundaries, validated against measured area and perimeter | Google Earth | — | Territory |
| Cartografia base Base cartography for every map on the site | OpenStreetMap | — | Territory |
From data to conclusion
The sources above give raw measurements. What the site shows is the result of combining them: the stratification groups cells by similarity, the cultivar zoning orders them by temperature corrected for aspect, and the water balance combines evapotranspiration, usable rainfall and pistachio crop coefficients. Each of these steps is a reproducible calculation from source data, not a judgement.