Date of Images:

1/1/2023, 1/6/2023, 1/8/2023, 1/11/2023, 1/13/2023, 1/18/2023, 1/20/2023, 1/23/2023, 1/25/2025

Date of Next Image:

None Expected

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.

Suggested Use:

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.

Satellite/Sensor:

Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satellite

Resolution:

30 meters

Credits:

Sentinel data used in this derived product, contains modified Copernicus Sentinel data (2023), processed by ESA, Alaska Satellite Facility, NASA MSFC

Esri REST Endpoint:

See URL section on right side of page

WMS Endpoint:

https://maps.disasters.nasa.gov/ags04/services/california_atmospheric_river_2023/sentinel1_waterextents/MapServer/WMSServer

Data Download:

https://maps.disasters.nasa.gov/download/gis_products/event_specific/2023/california_atmospheric_river/sentinel1/

Date of Images:

1/1/2023, 1/6/2023, 1/8/2023, 1/11/2023, 1/13/2023, 1/18/2023, 1/20/2023, 1/23/2023, 1/25/2025

Date of Next Image:

None Expected

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.

Suggested Use:

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.

Satellite/Sensor:

Synthetic Aperture Radar on European Space Agency's (ESA) Copernicus Sentinel-1A satellite

Resolution:

30 meters

Credits:

Sentinel data used in this derived product, contains modified Copernicus Sentinel data (2023), processed by ESA, Alaska Satellite Facility, NASA MSFC

Esri REST Endpoint:

See URL section on right side of page

WMS Endpoint:

https://maps.disasters.nasa.gov/ags04/services/california_atmospheric_river_2023/sentinel1_waterextents/MapServer/WMSServer

Data Download:

https://maps.disasters.nasa.gov/download/gis_products/event_specific/2023/california_atmospheric_river/sentinel1/