USDA/NASS Disaster Analysis Web Page https://www.nass.usda.gov/Research_and_Science/Disaster-Analysis/index.php Metadata Event: Hurricane Michael Last Updated: October 23, 2018 ------------------------------------------------------------------------- ------------------------------------------------------------------------- File: Hurricane_Michael_Inundation_Layer.zip Description: This dataset is a 2018 inundation raster layer created to estimate the extent of cropland and pasture/hay inundated by flooding from Hurricane Michael. The study area consisted of portions of Florida, Alabama, Georgia, North Carolina, and South Carolina, United States of America. Data represent cropland, inundated cropland, pasture/hay, inundated pasture/hay, water bodies, and other land. Projection: Albers Conical Equal Area Spatial Resolution: 30 meter Attribute Table Value Class_Name 1 Water 2 Other 10 Cropland 11 Inundated Cropland 20 Pasture Hay 21 Inundated Pasture Hay -------------------- Imagery Inputs Sentinel-1A and 1B Data: interferometric wide (IW) swath (250 kilometer), Level-1 Ground Range Detected (GRD), 5x20 meter spatial resolution, and dual polarization (VV, VH) Sentinel 1A Data: extra-Wide (EW) swath (400 kilometer), Level-1 Ground Range Detected (GRD), 20 x 40 meter spatial resolution, and dual polarization ( VV and VH) Imagery Download: Copernicus Open Access Hub https://scihub.copernicus.eu/dhus/ Pre-Flood Imagery Input Files: S1A_IW_GRDH_1SDV_20181002T235344_20181002T235413_023964_029E07_0718 S1A_IW_GRDH_1SDV_20181002T235413_20181002T235438_023964_029E07_F2A5 S1A_IW_GRDH_1SDV_20181002T235438_20181002T235503_023964_029E07_C33B S1A_IW_GRDH_1SDV_20180927T234535_20180927T234604_023891_029B92_5B20 S1A_IW_GRDH_1SDV_20180927T234604_20180927T234629_023891_029B92_3F0E S1A_IW_GRDH_1SDV_20180927T234629_20180927T234654_023891_029B92_D9F7 S1A_IW_GRDH_1SDV_20181004T233641_20181004T233706_023993_029F05_CEE6 S1A_IW_GRDH_1SDV_20181004T233706_20181004T233731_023993_029F05_9DDB S1A_IW_GRDH_1SDV_20181004T233731_20181004T233756_023993_029F05_00E1 S1A_IW_GRDH_1SDV_20181004T233756_20181004T233821_023993_029F05_CCB4 S1A_IW_GRDH_1SDV_20181004T233821_20181004T233846_023993_029F05_1B2A S1A_IW_GRDH_1SDV_20180929T232756_20180929T232821_023920_029C84_818A S1A_IW_GRDH_1SDV_20180929T232821_20180929T232846_023920_029C84_DADF S1A_IW_GRDH_1SDV_20180929T232846_20180929T232911_023920_029C84_75CE S1A_IW_GRDH_1SDV_20180929T232911_20180929T232936_023920_029C84_93E1 S1A_IW_GRDH_1SDV_20180929T232936_20180929T233001_023920_029C84_2BE1 S1A_IW_GRDH_1SDV_20180929T233001_20180929T233026_023920_029C84_F119 S1A_IW_GRDH_1SDV_20181001T231350_20181001T231415_023949_029D80_209B S1A_IW_GRDH_1SDV_20181001T231415_20181001T231440_023949_029D80_240D S1A_IW_GRDH_1SDV_20180924T232140_20180924T232205_023847_029A31_F02E S1A_IW_GRDH_1SDV_20180924T232205_20180924T232230_023847_029A31_12E4 S1A_IW_GRDH_1SDV_20180924T232230_20180924T232255_023847_029A31_FD5C Post-Flood Imagery Inputs Files: S1A_EW_GRDM_1SDV_20181010T114907_20181010T115011_024073_02A192_0011 S1A_IW_GRDH_1SDV_20181012T113212_20181012T113237_024102_02A289_88C8 S1A_IW_GRDH_1SDV_20181012T113237_20181012T113302_024102_02A289_925F S1A_IW_GRDH_1SDV_20181012T113302_20181012T113327_024102_02A289_EF55 S1A_IW_GRDH_1SDV_20181012T113327_20181012T113352_024102_02A289_447A S1A_IW_GRDH_1SDV_20181012T113352_20181012T113417_024102_02A289_4973 S1B_IW_GRDH_1SDV_20181013T112310_20181013T112339_013133_018444_A2DB S1B_IW_GRDH_1SDV_20181013T112339_20181013T112404_013133_018444_4B87 S1B_IW_GRDH_1SDV_20181013T112404_20181013T112429_013133_018444_F2EE S1B_IW_GRDH_1SDV_20181013T112429_20181013T112454_013133_018444_AB58 S1B_IW_GRDH_1SDV_20181013T112454_20181013T112519_013133_018444_ABD8 S1B_IW_GRDH_1SDV_20181013T112519_20181013T112544_013133_018444_B6CA S1B_IW_GRDH_1SDV_20181013T112544_20181013T112614_013133_018444_35E9 S1B_IW_GRDH_1SDV_20181011T114046_20181011T114115_013104_018364_C3C1 S1B_IW_GRDH_1SDV_20181011T114115_20181011T114132_013104_018364_BB7D S1A_IW_GRDH_1SDV_20181013T231351_20181013T231416_024124_02A33B_4653 S1A_IW_GRDH_1SDV_20181013T231416_20181013T231441_024124_02A33B_A10C -------------------- Land Cover Inputs NASS 2017 Cultivated Layer (planted acres) Obtained From: https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php NASS 2017 Cropland Data Layer (planted acres) Obtained From: CropScape: https://nassgeodata.gmu.edu/CropScape/ Disclaimer: These data are not official NASS estimates. -------------------- Processing Software Sentinel Application Platform (SNAP) Toolbox 6.0 http://step.esa.int/main/download/ Hexagon ERDAS Imagine 2016 http://www.hexagongeospatial.com/ Esri ArcGIS 10.3.1 http://www.esri.com/ -------------------- Methodology Boryan, C., Z. Yang, A. Sandborn, P. Willis, and B. Haack (2018). Operational Agricultural Flood Monitoring With Sentinel-1 Synthetic Aperature Radar. IGARSS 2018, Valenca Spain, July 22-27, 2018. Posted 08/09/2018 https://www.nass.usda.gov/Research_and_Science/Cropland/docs/Boryan_IGARSS2018%20_Flood.pdf ------------------------------------------------------------------------- ------------------------------------------------------------------------- File: Hurricane_Michael_Flood_Assessment_Report_no_estimates.pdf Description: The Assessment Report provides a brief overview of the disaster event and the analysis that USDA/NASS conducted to estimate the extent of cropland and pasture/hay inundated by flooding from Hurricane Michael. The report provides an overview of the raster data created with select zooms of affected cropland and pasture/hay. ------------------------------------------------------------------------- ------------------------------------------------------------------------- File: Hurricane_Michael_Wind_Swath_Maps.zip Description: The wind swath maps utilize NOAA hurricane data, as well as land cover data to derive the percent of agricultural land located within each wind swath polygon. -------------------- Hurricane Inputs NOAA National Hurricane Center https://www.nhc.noaa.gov/gis/ Preliminary Best Track - Hurricane Michael Obtained From: https://www.nhc.noaa.gov/gis/archive_besttrack_results.php?id=al14&year=2018&name=Hurricane%20MICHAEL Accessed: October 12, 2018, 6:00 AM Attribute Data RADII Description 34 Wind speeds are between 34 and 49 knots (39 and 57 miles per hour) - Tropical Storm Speeds 50 Wind speeds are between 50 and 63 knots (58 and 73 miles per hour) 64 Wind speeds are greater than 64 knots (74 miles per hour) - Hurricane Speeds -------------------- Land Cover Inputs NASS 2017 Cultivated Layer (planted acres) Obtained From: https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php NASS 2017 Cropland Data Layer (planted acres) Obtained From: CropScape: https://nassgeodata.gmu.edu/CropScape/ Disclaimer: These data are not official NASS estimates. -------------------- Estimates NASS Quickstats https://quickstats.nass.usda.gov/ NASS official 2017 estimates were derived from planted acres for corn, cotton, peanuts, and soybeans obtained from: https://quickstats.nass.usda.gov/results/CCB3D98A-38D4-323B-90F4-13FBF09FB9F1 ------------------------------------------------------------------------- -------------------------------------------------------------------------