murcia_2000_ph.zipSiora Open Soil Nutrient Dataset – Murcia (2000, 2010, 2020)

Title: Murcia Soil Nutrient Datasets (2000, 2010, 2020) – Nitrogen, Phosphorus, Potassium, Organic Carbon, pH Description: This record contains open satellite-derived soil nutrient maps for the Region of Murcia, Spain. The datasets provide estimates of Nitrogen, Phosphorus, Potassium, Organic Carbon, and pH at ~30 m spatial resolution for the years 2000, 2010, and 2020. The nutrient values were generated using calibrated multispectral sensing models that detect how soils reflect sunlight across spectral bands. This method parallels laboratory spectroscopy but is applied remotely from Earth-observation satellites. Each dataset is distributed as a single-band GeoTIFF with accompanying heatmaps and documentation. Primary DOI (Zenodo citation): 10.5281/zenodo.16889684 (Please use this Zenodo DOI when citing the dataset.) Key features: Region: Murcia, Spain Parameters: Nitrogen (N), Phosphorus (P), Potassium (K), Organic Carbon (OC), pH Temporal coverage: 2000, 2010, 2020 Spatial resolution: 30 m Format: GeoTIFF (.tif), PNG previews, metadata JSON, README, license Coordinate system: WGS 84 (EPSG:4326) License: Creative Commons Attribution 4.0 (CC-BY 4.0) Comparable laboratory references: Nitrogen – ISO 11261:1995 (Modified Kjeldahl) Phosphorus – ISO 11263:1994 (Spectrometric) Potassium – USDA–NRCS (Atomic absorption, NH₄OAc extraction) Organic Carbon – ISO 10694:1995 (Dry combustion) pH – ISO 10390:2005 (Glass electrode method) Suggested applications: Soil fertility and nutrient trend research Agricultural management and fertilization planning Environmental monitoring and sustainability analysis Machine learning model training and validation for remote sensing Attribution: Dataset created and released by Siora, provider of satellite-based soil analysis. If you use this dataset, please credit: “Siora (2025). Murcia Soil Nutrient Dataset (2000–2020). Zenodo DOI: 10.5281/zenodo.16889684.”