The greater St. Louis area of Missouri and Illinois and areas of southern Illinois and Kentucky experienced heavy precipitation and severe flooding during late July and early August 2022. The United States Department of Agriculture's National Agricultural Statistics Service (NASS) responded to inquiries regarding the extent of flooding over agricultural land in Missouri, Illinois, and Kentucky. Analysis completed using several freely available data products, including Sentinel-1 Synthetic Aperture Radar, Sentinel-2 Modified Normalized Water Index (MNDWI), soil moisture data from Crop-CASMA (Crop Condition and Soil Moisture Analytics), and the NASS 2021 Cropland Data Layer. For this event, inundation raster files for the areas of interest are included for download. The official website <https://www.nass.usda.gov/Research_and_Science/Disaster-Analysis/> provides disaster assessments in geospatial data format, reports, and metadata as available. These data are not official NASS estimates.
Agricultural disaster monitoring is important for food security and economic stability. Using remotely sensed data and geospatial techniques provides an additional tool for the USDA NASS to use in evaluating a disaster's impact on US agriculture.
LIST OF INPUTS
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St. Louis Area: StLouis_Inundation_Raster_20220801.tif
Inundation derived from Sentinel-2 Modified Normalized Water Index (MNDWI) dated August 1, 2022.
Value 0 = No Inundation
Value 1 = Inundation
Southern Illinois: Illinois_Inundation_Raster_20220803.tif
Inundation derived from Sentinel-1 Synthetic Aperture Radar dated August 1, 2022 and Sentinel-2 Modified Normalized Water Index (MNDWI) dated August 3, 2022.
Value 0 = No Inundation
Value 1 = Inundation
Southern Kentucky: Kentucky_Inundation_Raster_20220808.tif
Inundation derived Sentinel-1 Water Index (SWI) imagery dated between July 27 and August 8, 2022.
Value 0 = No Inundation
Value 1 = Inundation
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Climate Data
PRISM Climate Group
Precipitation deviation from 30-year normals, August 1-9, 2022
Obtained From: https://prism.oregonstate.edu/mtd/
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Soil Moisture Data
Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 29, July 18-24, 2022, Missouri and Illinois
Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 30, July 25-31, 2022, Missouri and Illinois
Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 29, July 18-24, 2022, Kentucky
Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 30, July 25-31, 2022, Kentucky
Topsoil Moisture Anomaly, 1km, Weekly, Year 2022, Week 31, August 1-7, 2022, Kentucky
Obtained From: https://nassgeo.csiss.gmu.edu/CropCASMA/
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Land Cover Inputs
NASS 2021 Cropland Data Layer (planted acres)
Obtained From: https://croplandcros.scinet.usda.gov/
Disclaimer: These data are not official NASS estimates.
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Official NASS Estimates
2021 Planted Acres
Obtained From: https://quickstats.nass.usda.gov/