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Agriculture & Cropland Data

FAO Global Map of Irrigation Areas

FAO GMIA provides the global distribution of irrigated areas at ~10km resolution, showing the percentage of each grid cell equipped for irrigation.

Format GeoTIFF / ASCII
Coverage Global
Resolution 5 arc-minutes (~10km)
License Free open access (FAO policy)
Update Versioned releases (v5.0)
Download source Open official source

Format

GeoTIFF / ASCII

Geometry

Raster (irrigation percentage)

Coverage

Global

Resolution

5 arc-minutes (~10km)

About this dataset

FAO area equipped for irrigation dataset showing global irrigation extent at 5 arc-minute resolution.

The FAO Global Map of Irrigation Areas (GMIA) provides the spatial distribution of area equipped for irrigation at 5 arc-minute (~10km) resolution. It covers all countries and shows the percentage of each grid cell that is irrigated, derived from national irrigation statistics and sub-national data.

Irrigation infrastructure mapping Water resource management Agricultural water use modeling Food security analysis

How to download

  1. 1 Open the FAO GMIA download page.
  2. 2 Select the global or continent-level raster.
  3. 3 Download the GeoTIFF or ASCII grid.
  4. 4 Open in QGIS and classify by irrigation percentage for water use analysis.

FAO GMIA download

Download raster by continent or global extent

→

AQUASTAT portal

FAO water and irrigation statistics

→

FAQ

What does 'area equipped for irrigation' mean?

It refers to the area equipped with irrigation infrastructure, not necessarily the actual area irrigated in any given year. Actual irrigation depends on water availability and crop choices.

What resolution is the data?

GMIA is available at 5 arc-minute (~10km at the equator) resolution. Higher-resolution national products are in development.