1. External soil products (codes in API responses)
ProductCodeLicenceCitation
iSDAsoil (iSDA Africa)sdCC BY 4.0Hengl, T., Miller, M.A.E., Križan, J. et al. (2021). African soil properties and nutrients mapped at 30 m spatial resolution using two-scale ensemble machine learning. Scientific Reports 11, 6130. https://doi.org/10.1038/s41598-021-85639-y
SoilGrids 2.0 (ISRIC — World Soil Information)lgCC BY 4.0Poggio, L., de Sousa, L.M., Batjes, N.H. et al. (2021). SoilGrids 2.0: producing soil information for the globe with quantified spatial uncertainty. SOIL 7, 217–240. https://doi.org/10.5194/soil-7-217-2021
Values from these products may be resampled to our 30 m grid and are served where independent laboratory evaluation selected them; each API value carries provenance metadata saying which source produced it.
2. Weather
- Open-Meteo
- Weather data by Open-Meteo.com. Licence: CC BY 4.0.
3. Satellite and environmental inputs to Soprana models
- Copernicus Sentinel-2
- Contains modified Copernicus Sentinel data 2023–2024.
- Landsat (U.S. Geological Survey)
- Public domain. Landsat data courtesy of the U.S. Geological Survey.
- SRTM elevation (NASA / USGS)
- Public domain.
- SM2RAIN rainfall
- Licence: CC BY 4.0.
- MERIT Hydro (University of Tokyo)
- Yamazaki, D., Ikeshima, D., Sosa, J., Bates, P.D., Allen, G.H. and Pavelsky, T.M. (2019). MERIT Hydro: a high-resolution global hydrography map based on latest topography dataset. Water Resources Research 55, 5053–5073. https://doi.org/10.1029/2019WR024873
- WorldClim
- Fick, S.E. and Hijmans, R.J. (2017). WorldClim 2: new 1-km spatial resolution climate surfaces for global land areas. International Journal of Climatology 37, 4302–4315. https://doi.org/10.1002/joc.5086
4. Our catalogue
Our public STAC 1.0 catalogue describes the soil layers we serve, with ISO 19115-3 lineage for each: https://www.aspace.company/
5. Questions
Questions about our data sources? Contact us.