GFSAD1KCD v001

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


PI: Prasad Thenkabail

Description

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

The GFSAD1KCD data were produced for nominal 2010 by overlaying the five dominant crops of the world produced by Ramankutty et al. (2008), Monfreda et al. (2008), and Portman et al. (2009) over the remote sensing derived global irrigated and rainfed cropland area map of the International Water Management Institute (IWMI; Thenkabail et al., 2009a, 2009b, 2011, Biradar et al., 2009) to ultimately create eight classes of crop dominance. The GFSAD1KCD nominal 2010 product is based on data ranging from years 2007 through 2012.

Characteristics

Collection and Granule

Collection

Characteristic Description
CollectionMEaSUREs GFSAD
DOI10.5067/MEaSUREs/GFSAD/GFSAD1KCD.001
File Size~28 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

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers1
Columns/Rows40430 x 20160
Pixel Size1000 m

Layers

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor Additional Offset
Crop Dominance Crop dominance class N/A 8-bit unsigned integer 0 N/A 1 to 9 N/A N/A

Crop Dominance Class Descriptions

Class Label Name Description
0 Ocean Ocean or Water areas
1 Irrigated Wheat and Rice
2 Irrigated Mixed Crops 1 Wheat, Rice, Barley, Soybeans
3 Irrigated Mixed Crops 2 Wheat, Rice, Cotton, Orchards
4 Rainfed Wheat, Rice, Soybeans, Surgarcane, Corn, Cassava
5 Rainfed Wheat, Barley
6 Rainfed Corn, Soybeans
7 Rainfed Mixed Crops Wheat, Corn, Rice, Barley, Soybeans
8 Fractions of Mixed Crops Wheat, Maize, Rice, Barley, Soybeans
9 Non-Cropland Non-Cropland areas

Product Quality

Known Issues

See Section 3.0 of the GFSAD 1 km User Guide.

Documentation

Using the Data

E-Learning

Observing Land from Space: Interacting with Geospatial Data from NASA's LP DAAC

Tools

Citation

DOI: 10.5067/MEaSUREs/GFSAD/GFSAD1KCD.001

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