Comparative Analysis between SMAP Level-4 Data and NASS Surveyed Soil Moisture Estimates for U.S. Midwest Cropland Areas

Zhengwei Yang, USDA National Agricultural Statistics Service, Research and Development Division, Washington, DC, United States, Avery Sandborn, USDA National Agricultural Statistics Service, Washington, DC, United States and Rick Mueller, USDA Washington DC, Washington, DC, United States