Crop Mask Title:
Global synergy cropland map

Coverage:
Global

Spatial resolution:
500-meters

Satellites:
Derived from a variety of crop masks generated from a variety of satellites (MODIS, MERIS, Landsat, etc.)

Year:
Circa 2010

Version:
Version: 3.0 (2020-05-13)

Organizations and authors:
Lu, Miao (China Academy of Agricultural Science) Wu, Wenbin (China Academy of Agricultural Science) You, Liangzhi (International Food Policy Research Institute) See, Linda (International Institute for Applied Systems Analysis) Fritz Steffen (International Institute for Applied Systems Analysis)

Resource Contact:
Lu, Miao (China Academy of Agricultural Science) lumiao@caas.cn

Resource Abstract:
A global cropland synergy map with a spatial resolution of 500 m circa 2010 was produced by applying the SASAM (self-adapting statistics allocation model) algorithm. The synergy cropland map is a critical input for the Spatial Production Allocation Model (SPAM) to make global crop distribution (https://doi.org/10.7910/DVN/PRFF8V).

Resource Classification Categories:
Percentage cropland ranging from 0-100 percent.

Reprocessing for MODIS-GLAM (250-meter) applications:
The 500-m cropland percentage mask was resampled to 250-meters spatial resolution for cropland data drilling on MODIS-GLAM. The resampling steps follow:

1. Pixels ranging from 5 through 100 percent were set to a binary value of 1.
2. Above binary data set was resampled by nearest neighbor technique from native 500 to 250-meters cell size for use on USDA/NASA GLAM.

Resource URL:
Documentation and data download links are available at: https://essd.copernicus.org/articles/12/1913/2020/ https://essd.copernicus.org/articles/12/1913/2020/essd-12-1913-2020.pdf https://essd.copernicus.org/articles/12/1913/2020/essd-12-1913-2020-assets.html

Download URL:
The global synergy cropland map can be downloaded at: https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/ZWSFAA

Resource Citations:
Lu, M., Wu, W., You, L., See, L., Fritz, S., Yu, Q., Wei, Y., Chen, D., Yang, P., and Xue, B.: A cultivated planet in 2010 – Part 1: The global synergy cropland map, Earth Syst. Sci. Data, 12, 1913–1928, https://doi.org/10.5194/essd-12-1913-2020, 2020.

Lu, Miao; Wu, Wenbin; You, Liangzhi; See, Linda; Fritz Steffen, 2020, "Global synergy cropland map", https://doi.org/10.7910/DVN/ZWSFAA, Harvard Dataverse, V3

Lu, M., Wu, W., You, L., See, L., Fritz, S., Yu, Q., Wei, Y., Chen, D., Yang, P. and Xue, B., 2020. A cultivated planet in 2010: 1. the global synergy cropland map. Submitted to the current journal Earth System Science Data. Lu, M., Wu, W., You, L., Chen, D., Zhang, L., Yang, P. and Tang, H., 2017. A synergy cropland of china by fusing multiple existing maps and statistics. Sensors, 17(7), p.1613. Chen, D., Lu, M., Zhou, Q., Xiao, J., Ru, Y., Wei, Y. and Wu, W., 2019. Comparison of Two Synergy Approaches for Hybrid Cropland Mapping. Remote Sensing, 11(3), p.213.