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GFSAD30 Global Cropland Extent

Quick answer: GFSAD30 is NASA's global 30m cropland/non-cropland mask derived from Landsat imagery, the highest-resolution free global cropland dataset.

Format GeoTIFF
Coverage Global (excluding Antarctica)
Resolution 30m
License Free open access (NASA data policy)
Update Versioned releases (2000-2015 baseline)
Open source download page

Next step

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Format

GeoTIFF

Geometry

Raster (cropland mask)

Coverage

Global (excluding Antarctica)

Resolution

30m

About this dataset

NASA global 30m cropland extent mask distinguishing agricultural from non-agricultural land.

GFSAD30 (Global Food Security-support Analysis Data) from NASA provides a global 30m cropland extent product distinguishing cropland from non-cropland. Derived from Landsat imagery using machine learning, it covers all continents with the exception of Antarctica and offers the highest free global cropland mask resolution available.

Cropland extent mapping Agricultural land monitoring Food security assessment Land use change analysis

How to download

  1. 1 Open the GFSAD data portal at croplands.org.
  2. 2 Select the region or country of interest.
  3. 3 Download the 30m GeoTIFF cropland mask.
  4. 4 Open in QGIS and classify (1=cropland, 0=other) for agricultural extent analysis.

GFSAD data portal

Search and download by region

→

USGS GFSAD page

Project documentation

→

FAQ

What time period does GFSAD30 cover?

GFSAD30 provides baseline cropland extent for the 2000-2015 period. Multi-temporal releases are being developed to track cropland change over time.

How accurate is GFSAD30?

GFSAD30 reports overall accuracy of 85-95% depending on region. The highest accuracy is in large-scale mechanized agriculture regions. Accuracy is lower in smallholder and shifting cultivation areas.