1995 data provides a global map of the fraction of land equipped for irrigation within 5-minute by 5-minute grid cells (approximately 9.25 km x 9.25 km at the equator). The dataset was created by the Committee on Earth Observation Satellites (CEOS) by combining statistical administrative data with geographical information on irrigated areas.
Use Cases
- Model historical agricultural water demand using the irrigation fraction per grid cell.
- Analyze regional patterns of irrigation infrastructure development from the 1995 snapshot.
- Validate or calibrate land-use change models with the gridded irrigation data.
- Assess correlations between irrigated areas and other geospatial layers like climate zones or soil types.
Strengths
- Global spatial coverage at a consistent 5-minute grid resolution.
- Data integration from multiple sources: statistical administrative units and geographical point/polygon/raster data.
Limitations
- Single temporal snapshot from circa 1995, lacking time-series information.
- Spatial resolution of ~9.25 km may obscure small-scale or localized irrigation patterns.
- Methodological reliance on circa 1995 administrative statistics, which may have varying accuracy by region.
Provenance
- Source
- Committee on Earth Observation Satellites (CEOS) via NASA Earthdata.
- Collection Method
- Derived by combining statistical data on irrigated area within administrative units with geographical data on location of irrigated areas.
- Time Range
- circa 1995
- Freshness
- null
- Geography
- Global