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Service Description: Dates of Images:
Pre-Event: 9/6, 9/11
Post-Event:
Date of Next Image:
Varies by region, typically 12 days since previous pass. Set time slider to most recent interval and click on area of interest to identify date of last pass.
Summary:
The Alaska Satellite Facility has developed false color Red, Green, Blue (RGB) and Radiometrically Terrain-Correct (RTC) composites and surface water extent products of the Sentinel-1A/B Synthetic Aperture Radar (SAR) instrument which assigns the co- and cross-polarization information to a channel in the composite. When used to support a flooding event, areas in blue denotes water present at the time of the satellite overpass before or after the start of the flooding event.
Sentinel-1 RGB Decomposition of RTC VV and VH imagery over United States coastlines. Blue areas have low returns in VV and VH (smooth surfaces such as calm water, but also frozen/crusted soil or dry sand), Green areas have high returns in VH (volume scatterers such as vegetation or some types of snow/ice), and Red areas have relatively high VV returns and relatively low VH returns (such as urban or sparsely vegetated areas).
Suggested Use:
In this image, water appears in blue, vegetated areas in shades of green and urban areas in bright orange. It is recommended to use this product with ancillary information to derive flooded areas.
Satellite/Sensor:
Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A/B satellite
NOTE: Sentinel-1B is no longer acquiring data and is only available into December 2021
Resolution:
20 meters
Esri REST Endpoint:
See URL on the right.
RGB Product:
https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RGB/ImageServer
RTC Product:
VV - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VV/ImageServer
VH - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VH/ImageServer
Surface Water Extent Product:
https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_WM/ImageServer
WMS:
https://maps.disasters.nasa.gov/ags03/services/hurricane_francine_2024/Sentinel1/MapServer/WMSServer
Data Download:
https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/tropical_storm_francine_202409/Sentinel1/
sentinel1
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Description: Dates of Images:Pre-Event: 9/6, 9/11Post-Event:Date of Next Image:Varies by region, typically 12 days since previous pass. Set time slider to most recent interval and click on area of interest to identify date of last pass.Summary:The Alaska Satellite Facility has developed false color Red, Green, Blue (RGB) and Radiometrically Terrain-Correct (RTC) composites and surface water extent products of the Sentinel-1A/B Synthetic Aperture Radar (SAR) instrument which assigns the co- and cross-polarization information to a channel in the composite. When used to support a flooding event, areas in blue denotes water present at the time of the satellite overpass before or after the start of the flooding event.Sentinel-1 RGB Decomposition of RTC VV and VH imagery over United States coastlines. Blue areas have low returns in VV and VH (smooth surfaces such as calm water, but also frozen/crusted soil or dry sand), Green areas have high returns in VH (volume scatterers such as vegetation or some types of snow/ice), and Red areas have relatively high VV returns and relatively low VH returns (such as urban or sparsely vegetated areas).Suggested Use:In this image, water appears in blue, vegetated areas in shades of green and urban areas in bright orange. It is recommended to use this product with ancillary information to derive flooded areas.Satellite/Sensor:Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A/B satelliteNOTE: Sentinel-1B is no longer acquiring data and is only available into December 2021Resolution:20 metersEsri REST Endpoint:See URL on the right.RGB Product:https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RGB/ImageServerRTC Product:VV - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VV/ImageServerVH - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VH/ImageServerSurface Water Extent Product:https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_WM/ImageServerWMS:https://maps.disasters.nasa.gov/ags03/services/hurricane_francine_2024/Sentinel1/MapServer/WMSServerData Download:https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/tropical_storm_francine_202409/Sentinel1/
Service Item Id: 6191cd112e844811af3ab45a860cadc1
Copyright Text: NASA/MSFC, USGS, ESA Copernicus. Sentinel data used in this derived product, contains modified Copernicus Sentinel data (2019-2022), processed by ESA, Alaska Satellite Facility.
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.0413215414071709E7
YMin: 3440906.4170849742
XMax: -1.0056308653273188E7
YMax: 3675778.6561040217
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.04683879129E7
YMin: 3241888.5036000013
XMax: -9816867.3896
YMax: 4303399.838800002
Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Sentinel-1 Water Extent and RGB for Hurricane Francine in September 2024
Author:
Comments: Dates of Images:Pre-Event: 9/6, 9/11Post-Event:Date of Next Image:Varies by region, typically 12 days since previous pass. Set time slider to most recent interval and click on area of interest to identify date of last pass.Summary:The Alaska Satellite Facility has developed false color Red, Green, Blue (RGB) and Radiometrically Terrain-Correct (RTC) composites and surface water extent products of the Sentinel-1A/B Synthetic Aperture Radar (SAR) instrument which assigns the co- and cross-polarization information to a channel in the composite. When used to support a flooding event, areas in blue denotes water present at the time of the satellite overpass before or after the start of the flooding event.Sentinel-1 RGB Decomposition of RTC VV and VH imagery over United States coastlines. Blue areas have low returns in VV and VH (smooth surfaces such as calm water, but also frozen/crusted soil or dry sand), Green areas have high returns in VH (volume scatterers such as vegetation or some types of snow/ice), and Red areas have relatively high VV returns and relatively low VH returns (such as urban or sparsely vegetated areas).Suggested Use:In this image, water appears in blue, vegetated areas in shades of green and urban areas in bright orange. It is recommended to use this product with ancillary information to derive flooded areas.Satellite/Sensor:Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A/B satelliteNOTE: Sentinel-1B is no longer acquiring data and is only available into December 2021Resolution:20 metersEsri REST Endpoint:See URL on the right.RGB Product:https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RGB/ImageServerRTC Product:VV - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VV/ImageServerVH - https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_RTC_VH/ImageServerSurface Water Extent Product:https://gis.asf.alaska.edu/arcgis/rest/services/ASF_S1/ASF_S1_WM/ImageServerWMS:https://maps.disasters.nasa.gov/ags04/services/tropicalstorm_ernesto_2024/Sentinel1_WaterExtent_RGB/MapServer/WMSServerData Download:https://maps.disasters.nasa.gov/download/gis_products/event_specific/2024/tropical_storm_francine_202409/sentinel1/
Subject: Sentinel-1 Water Extent and RGB for Hurricane Francine in September 2024.
Category:
Keywords: 2024,NASA Disasters Program,NASA,Flood,Floods,Flooding,Copernicus,Sentinel-1,Hurricanes,Francine,Louisiana,Mississippi
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
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
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