A 1995 geospatial dataset maps the fraction of land equipped for irrigation within 5-minute by 5-minute grid cells globally. The map was created by the CEOS_EXTRA organization, combining statistical data from administrative units with geographical information on irrigated areas. It provides a snapshot of irrigation infrastructure at a resolution of approximately 9.25 km x 9.25 km at the equator.
Use Cases
- Model historical agricultural water demand using the irrigation fraction per grid cell.
- Analyze correlations between irrigation-equipped areas and administrative unit statistics used in its creation.
- Validate or compare modern land-use datasets against this 1995 baseline for irrigation infrastructure.
Strengths
- Global spatial coverage at a consistent 5-minute grid resolution.
- Derived from a combination of statistical and geographical data sources for validation.
Limitations
- Data is from a single year (1995), making it temporally stale for current analyses.
- The 9.25 km grid resolution is too coarse for local or field-scale studies.
- Specific source data and methodology details for the combination process are not fully described.
Provenance
- Source
- NASA Earthdata, provided by CEOS_EXTRA.
- Collection Method
- Combined statistical data from administrative units with geographical point, polygon, and raster data on irrigated areas.
- Time Range
- Circa 1995.
- Freshness
- null
- Geography
- Global.