View In:
ArcGIS JavaScript
ArcGIS Online Map Viewer
ArcGIS Earth
ArcMap
ArcGIS Pro
View Footprint In:
ArcGIS Online Map Viewer
Service Description: Dates of Images:
5/7/2024-4/30/2024; 5/12/2024-5/7/2024
Date of Next Image:
Unknown
Summary:
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 Only
Dark Blue: Water Present in Both Dates
Orange: Water Present in the First Date Only
Satellite/Sensor:
Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satellite
Resolution:
30 meters
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/texas_flood_202405/sentinel1/
sentinel1_waterextent_difference
Legend
All Layers and Tables
Dynamic Legend
Dynamic All Layers
Layers:
Description: Dates of Images:
5/7/2024-4/30/2024; 5/12/2024-5/7/2024
Date of Next Image:
Unknown
Summary:
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 Only
Dark Blue: Water Present in Both Dates
Orange: Water Present in the First Date Only
Satellite/Sensor:
Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satellite
Resolution:
30 meters
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/texas_flood_202405/sentinel1/
67ec6fb1881b41d193cd826c2cb08fea
Copyright Text: NASA/MSFC, Alaska Satellite Facility, ESA Copernicus
Spatial Reference:
32615
(32615)
Single Fused Map Cache: false
Initial Extent:
XMin: 150679.24237951805
YMin: 3238874.644220482
XMax: 349224.6812228916
YMax: 3351649.8122204817
Spatial Reference: 32615
(32615)
Full Extent:
XMin: 65955.6945
YMin: 3191748.5221
XMax: 355235.6945
YMax: 3442048.5221
Spatial Reference: 32615
(32615)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: sentinel1_waterextend_difference
Author:
Comments: <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><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/" 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 /></P></DIV></DIV></DIV>
Subject: Water Extent Difference Maps (Sentinel-1) for May 2024 Texas Floods
Category:
Keywords: NASA,NASA Disasters Program,Texas,Flood,Sentinel-1,Copernicus,ESA,Alaska Satellite Facility,HydroSAR,Houston
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
Resampling: false
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
Info
Dynamic Layer
Supported Operations:
Export Map
Identify
QueryLegends
QueryDomains
Find
Return Updates