5/7/2024 - 4/30/2024

Dates of Images:5/7/2024-4/30/2024; 5/12/2024-5/7/2024Date of Next Image:UnknownSummary:The Alaska Satellite Facility has developed water extent images using the Sentinel-1A/B Synthetic Aperture Radar (SAR) instrument. These images can be used to see where water is located at the time of the satellite overpass. This product shows all water detected and does not differentiate between normal water and flood water. To determine where flooding may have occurred, combine this layer with a reference water layer.The water extent difference maps shown here were created by subtracting the water extent of the first date from the water extent of the second date to show what changes, if any, occurred in the water extent.Suggested Use:Light Blue: Water Present in the Second Date OnlyDark Blue: Water Present in Both DatesOrange: Water Present in the First Date OnlySatellite/Sensor:Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satelliteResolution:30 metersEsri REST Endpoint:See URL section on right side of pageWMS Endpoint:https://maps.disasters.nasa.gov/ags04/services/texas_flood_202405/sentinel1_waterextent_difference/MapServer/WMSServerData Download:https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/texas_flood_202405/sentinel1/

Data and Resources

Field Value
dcat_issued 2024-05-23T14:30:46.000Z
dcat_modified 2024-05-23T14:33:19.000Z
dcat_publisher_name NASA ArcGIS Online
guid https://www.arcgis.com/home/item.html?id=67ec6fb1881b41d193cd826c2cb08fea&sublayer=1
Tags
  • Alaska Satellite Facility
  • Copernicus
  • ESA
  • Flood
  • Houston
  • HydroSAR
  • NASA
  • NASA Disasters Program
  • Sentinel-1
  • Texas
isopen False
metadata_created 2025-09-18T18:08:57.352746
metadata_modified 2025-09-18T18:08:57.352755
notes <div style='text-align:Left;'><div><div><p><span style='font-weight:bold;'>Dates of Images:</span></p><p><span>5/7/2024-4/30/2024; 5/12/2024-5/7/2024</span></p><p><span style='font-weight:bold;'>Date of Next Image:</span></p><p><span>Unknown</span></p><p><span style='font-weight:bold;'>Summary:</span></p><p><span>The Alaska Satellite Facility has developed water extent images using the Sentinel-1A/B Synthetic Aperture Radar (SAR) instrument. These images can be used to see where water is located at the time of the satellite overpass. This product shows all water detected and does not differentiate between normal water and flood water. To determine where flooding may have occurred, combine this layer with a reference water layer.</span></p><p><span>The water extent difference maps shown here were created by subtracting the water extent of the first date from the water extent of the second date to show what changes, if any, occurred in the water extent.</span></p><p><span style='font-weight:bold;'>Suggested Use:</span></p><ul><li><p><span>Light Blue: Water Present in the Second Date Only</span></p></li><li><p><span>Dark Blue: Water Present in Both Dates</span></p></li><li><p><span>Orange: Water Present in the First Date Only</span></p></li></ul><p><span style='font-weight:bold;'>Satellite/Sensor:</span></p><p><span>Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satellite</span></p><p><span style='font-weight:bold;'>Resolution:</span></p><p><span>30 meters</span></p><p><span style='font-weight:bold;'>Esri REST Endpoint:</span></p><p><span>See URL section on right side of page</span></p><p><span style='font-weight:bold;'>WMS Endpoint:</span></p><p><a href='https://maps.disasters.nasa.gov/ags04/services/texas_flood_202405/sentinel1_waterextent_difference/MapServer/WMSServer' rel='nofollow ugc' target='_blank'>https://maps.disasters.nasa.gov/ags04/services/texas_flood_202405/sentinel1_waterextent_difference/MapServer/WMSServer</a><span style='font-weight:bold;'><br /></span></p><p><span style='font-weight:bold;'>Data Download:</span></p><p><a href='https://maps.disasters.nasa.gov:443/download/gis_products/event_specific/2024/texas_flood_202405/sentinel1/' rel='nofollow ugc' style='text-decoration:underline;'><span>https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/texas_flood_202405/sentinel1/</span></a></p><p><span></span></p></div></div></div>
num_resources 7
num_tags 10
title 5/7/2024 - 4/30/2024
url https://disasters.amerigeoss.org/maps/NASA::5-7-2024-4-30-2024