Global Food Security Support Analysis Data (GFSAD) Crop Mask 2010 Global 1 km

PI: Prasad Thenkabail


The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Global Food Security Support Analysis Data (GFSAD) Crop Mask Global 1 kilometer (km) dataset was created using multiple input data including: remote sensing such as Landsat, Advanced Very High Resolution Radiometer (AVHRR), Satellite Probatoire d'Observation de la Terre (SPOT) vegetation and Moderate Resolution Imaging Spectrometer (MODIS); secondary elevation data; climate 50-year precipitation and 20-year temperature data; reference submeter to 5 meter resolution ground data and country statistics data.

The GFSAD1KCM provides spatial distribution of a disaggregated five class global cropland extent map derived for nominal 2010 at 1 km based on four major studies: Thenkabail et al. (2009a, 2011), Pittman et al. (2010), Yu et al. (2013), and Friedl et al. (2010). The GFSAD1KCM nominal 2010 product is based on data ranging from years 2007 through 2012.

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Collection and Granule


Characteristic Description
CollectionMEaSUREs GFSAD
File Size~34 MB
Temporal ResolutionMulti-Year
Temporal Extent2007-01-01 to 2012-12-31
Spatial ExtentGlobal
Coordinate SystemGeographic Latitude and Longitude
DatumWorld Geodetic System (WGS84)
File FormatGeoTIFF
Geographic DimensionsGlobal


Characteristic Description
Number of Science Dataset (SDS) Layers1
Columns/Rows40457 x 20188
Pixel Size1000 m

Layers / Variables

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
Crop Mask Crop mask class N/A 8-bit unsigned integer 0 N/A 1 to 5, 9 N/A

Crop Mask Class Descriptions

Class Label Name Description
0 Ocean Ocean or Water areas
1 Croplands, Irrigation Irrigation Major
2 Croplands, Irrigation Irrigation Minor
3 Croplands, Rainfed Rainfed
4 Croplands, Rainfed Rainfed, Minor Fragments
5 Croplands, Rainfed Rainfed, Very Minor Fragments
9 Non-Cropland Non-Cropland areas

Product Quality

Known Issues

See Section 3.0 of the GFSAD 1 km User Guide.

About the image

Global Food Security Support Analysis Data (GFSAD) crop mask data from the GFSAD1KCM product across the globe, 2010.

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User Guide
Algorithm Theoretical Basis Document (ATBD)

Using the Data

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