N: 40.10861 S: -10.038404 E: 100.001086 W: 39.998656
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.
Known Issues
- Known issues, including constraints and limitations, are provided on page 18 of the ATBD.
Product Summary
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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File Naming Convention
File name begins with Product Short Name (GFSAD30SAAFGIRCE) followed by the Year of Acquisition (2015), the latitude and longitude of the lower left corner of the tile (N20E70), Version (001), Julian Date and Time of Processing as YYYYDDDHHMMSS (2017286103800), and the Data Format (tif).
Documents
USER'S GUIDE
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
SCIENCE DATA PRODUCT SOFTWARE DOCUMENTATION
Publications Citing This Dataset
| Title | Year Sort ascending | Author | Topic |
|---|---|---|---|
| Agricultural plastics as marine pollutants: Empirical evidence from inland and coastal field surveys | Morales-Caselles, Carmen, Viejo, Josue, Montero, Enrique, Cozar, Andres | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland | |
| A new two-decade (20012019) high-resolution agricultural primary productivity dataset for India | Gangopadhyay, Prasun K., Shirsath, Paresh B., Dadhwal, Vinay K., Aggarwal, Pramod K. | Reflectance, Photosynthesis, Primary Production, VEGETATION PRODUCTIVITY, Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland | |
| Multiple agricultural cropland products of South Asia developed using Landsat-8 30 m and MODIS 250 m data using machine learning on the Google Earth Engine ... | Gumma, Murali Krishna, Thenkabail, Prasad S, Panjala, Pranay, Teluguntla, Pardhasaradhi, Yamano, Takashi, Mohammed, Ismail | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland | |
| Global food-security-support-analysis data at 30-m resolution (GFSAD30) cropland-extent productsDownload Analysis | Oliphant, Adam, Thenkabail, Prasad, Teluguntla, Pardhasaradhi | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland, Vegetation Cover | |
| A statistical evaluation of Earth-observation-based composite drought indices for a localized assessment of agricultural drought in Pakistan | Schwartz, Caily, Ellenburg, W. Lee, Mishra, Vikalp, Mayer, Timothy, Griffin, Robert, Qamer, Faisal, Matin, Mir, Tadesse, Tsegaye | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland | |
| Global Cropland-Extent Product at 30-m Resolution (GCEP30) Derived from Landsat Satellite Time-Series Data for the Year 2015 Using Multiple Machine-Learning Algorithms on Google Earth Engine Cloud | Thenkabail, Prasad S., Teluguntla, Pardhasaradhi G., Xiong, Jun, Oliphant, Adam, Congalton, Russell G., Ozdogan, Mutlu, Gumma, Murali Krishna, Tilton, James C., Giri, Chandra, Milesi, Cristina, Phalke, Aparna, Massey, Richard, Yadav, Kamini, Sankey, Temuulen, Zhong, Ying, Aneece, Itiya, Foley, Daniel | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland, Terrain Elevation, Digital Elevation/Terrain Model (DEM), Topographical Relief Maps, Vegetation Cover | |
| Croplands intensify regional and global warming according to satellite observations | Zhou, Decheng, Xiao, Jingfeng, Frolking, Steve, Liu, Shuguang, Zhang, Liangxia, Cui, Yaoping, Zhou, Guoyi | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland, Vegetation Cover | |
| A new framework to map fine resolution cropping intensity across the globeAlgorithm, validation, and implication | Liu, Chong, Zhang, Qi, Tao, Shiqi, Qi, Jiaguo, Ding, Mingjun, Guan, Qihui, Wu, Bingfang, Zhang, Miao, Nabil, Mohsen, Tian, Fuyou, Zeng, Hongwei, Zhang, Ning, Bavuudorj, Ganbat, Rukundo, Emmanuel, Liu, Wenjun, Bofana, Jose, Beyene, Awetahegn Niguse, Elnashar, Abdelrazek | Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland, Plant Phenology | |
| Mapping crop types in southeast India with smartphone crowdsourcing and deep learning | Wang, Sherrie, Di Tommaso, Stefania, Faulkner, Joey, Friedel, Thomas, Kennepohl, Alexander, Strey, Rob, Lobell, David B. | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland | |
| A Phenology-Based Method to Map Cropping Patterns under a Wheat-Maize | Liu, Jianhong, Zhu, Wenquan, Atzberger, Clement, Zhao, Anzhou, Pan, Yaozhong, Huang, Xin | Crop/Plant Yields, Land Use Classes, Landscape Patterns, Cropland |
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| Band 1 | Cropland Extent for South Asia, Afghanistan, and Iran defined with three classes | N/A | uint8 | N/A | 0 to 2 | N/A | N/A |