GFSAD30SAAFGIRCE v001

Global Food Security-support Analysis Data (GFSAD) Cropland Extent 2015 South Asia, Afghanistan, Iran 30 m


PI: Prasad S. Thenkabail

Description

The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Global Food Security-support Analysis Data (GFSAD) data product provides cropland extent data over South Asia, Afghanistan, and Iran for nominal year 2015 at 30 meter resolution (GFSAD30SAAFGIRCE). The monitoring of global cropland extent is critical for policymaking and provides important baseline data that are used in many agricultural cropland studies pertaining to water sustainability and food security. The GFSAD30SAAFGIRCE data product uses the pixel-based supervised classifier, Random Forest (RF), to retrieve cropland extent from a combination of Landsat 8 Operational Land Imager (OLI) and elevation derived from the Shuttle Radar Topography Mission (SRTM) Version 3 data products. Each GFSAD30SAAFGIRCE GeoTIFF file contains a cropland extent layer that defines areas of cropland, non-cropland, and water bodies over a 10° by 10° area.

Characteristics

Collection and Granule

Collection

Characteristic Description
CollectionMEaSUREs GFSAD
DOI10.5067/MEaSUREs/GFSAD/GFSAD30SAAFGIRCE.001
File Size~800 MB
Temporal ResolutionMulti-Year
Temporal Extent2013-01-01 to 2016-06-30
Spatial ExtentSouth Asia, Afghanistan, Iran
Coordinate SystemGeographic Latitude and Longitude
DatumWorld Geodetic System (WGS84)
File FormatGeoTIFF
Geographic Dimensions10° x 10°

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers1
Columns/Rows37114 x 37253
Pixel Size30 m

Layers

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor Additional Offset
Band 1 Cropland Extent for South Asia, Afghanistan, and Iran defined with three classes N/A 8-bit unsigned integer N/A N/A 0 to 2 N/A N/A

Cropland Extent Class Descriptions

Class Label Name Description
0 Water Water bodies
1 Non-Cropland Non-Cropland areas
2 Cropland Cropland areas

Filename convention: GFSAD30SAAFGIRCE_2015_GridTile_001_ProcessingDate(YYYYJJJHHMMSS).tif

Product Quality

Product Quality information can be found on page 17 of the Algorithm Theoretical Basis Document (ATBD).

Known Issues

Known issues including constraints and limitations are provided on page 18 of the ATBD.

Documentation

Using the Data

Tools

Citation

DOI: 10.5067/MEaSUREs/GFSAD/GFSAD30SAAFGIRCE.001

About the Image