20260130 11303000 1.0 TRUE 150000000 5000 ItemDescription Umbra Backscatter (Sigma0) over Selected Areas in MS for the US Winter Storm January 2026. <div style='text-align:Left;'><div><div><p><span style='font-weight:bold;'>Date(s) of Image: </span></p><p><span>1/17/2026, 1/28/2026, 1/29/2026</span></p><p><span style='font-weight:bold;'>Summary</span></p><p><span>Umbra Sigma0 backscatter is derived from scaling factors provided within the Umbra Geo-Ellipsoid Corrected geotiff. The GEC product has been projected to a surface with a constant height above the WGS-84 ellipsoid, with the projection height determined by the elevation at scene center. Sigma0 corresponds to the return strength of the radar signal from the surface. The units for this product are decibels (dB). Debris may manifest in images via nonuniform shapes or with significant backscatter.</span></p><p><span style='font-weight:bold;'>Resolution:</span></p><p><span>0.5 m</span></p><p><span style='font-weight:bold;'>Credits:</span></p><p><span>NASA Disasters Program, Umbra. For derived products: “Includes copyrighted material of Umbra. All rights reserved.” This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) program."</span></p></div></div></div> NASA Disasters Program, Umbra. For derived products: “Includes copyrighted material of Umbra. All rights reserved.” This work utilized data made available through the NASA Commercial Satellite Data Acquisition (CSDA) program." Nighttime Lights Power Umbra Synthetic Aperture Radar SAR Backscatter Sigma0 US Winter Storm Winter Weather Mississippi Tennessee North Carolina Virginia Alabama True Color Color Infrared <div style='text-align:Left;'><div><div><p><span>NASA data and products are freely available to federal, state, public, non-profit and commercial users. This information can be experimental- or research-grade data products and may not be appropriate for operational use. These NASA data products, services, and the Disasters Mapping Portal are intended to aid decision makers and enhance situational awareness, but these data are not guaranteed to be consistently available or routinely updated. Use of this product should include: "Includes copyrighted material of Satellogic. All rights reserved..</span></p></div></div></div> 202601_umbra 20260130