全球粮食安全支持分析数据（GFSAD）数据产品30米的分辨率全球2015年的耕地范围

Thenkabail, P.S., Teluguntla, P.G., Xiong, J., Oliphant, A., Congalton, R.G., Ozdogan, M., Gumma, M.K., Tilton, J.C., Giri, C., Milesi, C., Phalke,
A., Massey, R., Yadav, K., Sankey, T., Zhong, Y., Aneece, I., and Foley, D., 2021, 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: U.S.
Geological Survey Professional Paper 1868, 63 p., https://doi.org/10.3133/pp1868.

GFSAD30 Cropland Extent 2015 Africa 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30AFCE.001

GFSAD30 Cropland Extent 2015 30 m Australia, New Zealand, China, Mongolia 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30AUNZCNMOCE.001

GFSAD30 Cropland Extent 2015 Europe, Central Asia, Russia, Middle East 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30EUCEARUMECE.001

GFSAD30 Cropland Extent 2015 North America 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30NACE.001

GFSAD30 Cropland Extent 2015 South Asia, Afghanistan, Iran 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30SAAFGIRCE.001

GFSAD30 Cropland Extent 2015 South America 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30SACE.001

GFSAD30 Cropland Extent 2015 Southeast and Northeast Asia 30 m
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30SEACE.001

GFSAD30 Cropland Extent 2015 Global Validation
DOI: https://doi.org/10.5067/MEaSUREs/GFSAD/GFSAD30VAL.001

var gcep30 = ee.ImageCollection("projects/sat-io/open-datasets/GFSAD/GCEP30");

var countries = ee.FeatureCollection("FAO/GAUL/2015/level0"),
    gcep30 = ee.ImageCollection("projects/sat-io/open-datasets/GFSAD/GCEP30");
/*
Class Label	Name	Description
0 Water	Water bodies/no-data
1	Non-Cropland	Non-Cropland areas
2	Cropland	Cropland areas
*/

var vis = {min:0,max:2,palette:["0050cb","d78956","21d911"]}
Map.addLayer(gcep30.mosaic().clip(countries),vis,'GCEP30')