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NOTE: This DPM should only be used over urban ares and is not expected to be reliable over vegetated areas where false negatives are to be expected. Ashfall or pyroclastic flow over vegetation are not dected in this DPM.
Date of Image:
4/12/2021
Date of Next Image:
Unknown:
Summary:
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology in Southern California, in collaboration with the Earth Observatory of Singapore (EOS), created this Damage Proxy Map (DPM) depicting areas in St. Vincent and the Grenadines that are likely damaged (shown by red and yellow pixels) by the ashfall from the explosive eruption of La Soufriere volcano. The map is derived from synthetic aperture radar (SAR) images acquired by the Copernicus Sentinel-1 satellites, operated by the European Space Agency (ESA), from March 31 to April 12, 2021.
The map covers an area of 24 by 46 miles (38 by 74 kilometers), shown by the large red polygon. Each pixel measures about 33 yards (30 meters) across. The color variation from yellow to red indicates increasingly more significant ground surface change. This damage proxy map should be used as guidance to identify damaged areas, and may be less reliable over vegetated areas. For example, the scattered single colored pixels over vegetated areas may be false positives, and the lack of colored pixels over vegetated areas does not necessarily mean no damage.
Suggested Use:
This damage proxy map shows surface change with yellow to red indicating more significant change or building damage due to the explosion. The map may be less reliable over vegetated areas. The lack of colored pixels over vegetated areas does not necessarily mean no damage. Small scale change or partial structural damage may not be detected by this map.
NOTE: This DPM should only be used over urban ares and is not expected to be reliable over vegetated areas where false negatives are to be expected. Ashfall or pyroclastic flow over vegetation are not dected in this DPM.
Satellite/Sensor:
Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)
Resolution:
30 meters
Credits:
Sentinel-1 data were accessed through the Copernicus Open Hub and the Alaska Satellite Facility server. The product contains modified Copernicus Sentinel data (2021), processed by ESA and analyzed by the NASA-JPL/Caltech ARIA team and EOS team. Part of the fund was provided by NASA's Earth Science Disasters Program.
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://aria-share.jpl.nasa.gov/20210409-LaSoufriere_volcano/
NOTE: This DPM should only be used over urban ares and is not expected to be reliable over vegetated areas where false negatives are to be expected. Ashfall or pyroclastic flow over vegetation are not dected in this DPM.
Date of Image:
4/12/2021
Date of Next Image:
Unknown:
Summary:
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology in Southern California, in collaboration with the Earth Observatory of Singapore (EOS), created this Damage Proxy Map (DPM) depicting areas in St. Vincent and the Grenadines that are likely damaged (shown by red and yellow pixels) by the ashfall from the explosive eruption of La Soufriere volcano. The map is derived from synthetic aperture radar (SAR) images acquired by the Copernicus Sentinel-1 satellites, operated by the European Space Agency (ESA), from March 31 to April 12, 2021.
The map covers an area of 24 by 46 miles (38 by 74 kilometers), shown by the large red polygon. Each pixel measures about 33 yards (30 meters) across. The color variation from yellow to red indicates increasingly more significant ground surface change. This damage proxy map should be used as guidance to identify damaged areas, and may be less reliable over vegetated areas. For example, the scattered single colored pixels over vegetated areas may be false positives, and the lack of colored pixels over vegetated areas does not necessarily mean no damage.
Suggested Use:
This damage proxy map shows surface change with yellow to red indicating more significant change or building damage due to the explosion. The map may be less reliable over vegetated areas. The lack of colored pixels over vegetated areas does not necessarily mean no damage. Small scale change or partial structural damage may not be detected by this map.
NOTE: This DPM should only be used over urban ares and is not expected to be reliable over vegetated areas where false negatives are to be expected. Ashfall or pyroclastic flow over vegetation are not dected in this DPM.
Satellite/Sensor:
Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)
Resolution:
30 meters
Credits:
Sentinel-1 data were accessed through the Copernicus Open Hub and the Alaska Satellite Facility server. The product contains modified Copernicus Sentinel data (2021), processed by ESA and analyzed by the NASA-JPL/Caltech ARIA team and EOS team. Part of the fund was provided by NASA's Earth Science Disasters Program.
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://aria-share.jpl.nasa.gov/20210409-LaSoufriere_volcano/