Cooperative Agreement for CESU-affiliated Partner with Californian Cooperative Ecosystem Studies Unit

The US Geological Survey is offering a funding opportunity to a CESU partner for research in Global Food-Security Support-Analysis Data (GFSAD) project. Climate variability and ballooning populations are putting unprecedented pressure on agricultural croplands and their water use, which are vital for ensuring global food and water security in the twenty-first century. In addition, the COVID-19 pandemic, military conflicts, and changing diets have added to looming global food insecurity. Therefore, there is a critical need to produce consistent and accurate global cropland products at fine spatial resolution (e.g., farm-scale, 30m or better), which are generated consistently, accurately, and routinely (e.g., every year). In order to address these issues, the proposed study will make use of Landsat-8, 9, and Sentinel-2A&2B surface reflectance products already available in the Google Earth Engine (GEE) cloud, and NASA’s Harmonized Landsat Sentinel-2 (HLS) Landsat derived product (HLSL30) for 2013-present and Sentinel-2 derived product (HLSS30) for 2015-present, that together have sub-5-day global coverage at nominal 30m resolution. The four cropland products will be generated using 14 mature MLAs that the team has extensive experience with such as random forest, support vector machines, decision trees, and spectral matching techniques (e.g., Thenkabail et al., 2021, Oliphant et al., 2019, Teluguntla et al., 2018, 2015, Xiong et al., 2017a, Thenkabail et al., 2012, 2009, 2007, 2005) as outlined in the methods section, utilizing GEE and\or other cloud platforms.