| snippet:
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ARIA Damage Proxy Map (Copernicus Sentinel-1) on 8/2/2021 for the Peru Earthquake July 2021 |
| summary:
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ARIA Damage Proxy Map (Copernicus Sentinel-1) on 8/2/2021 for the Peru Earthquake July 2021 |
| accessInformation:
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NASA-JPL/Caltech ARIA Team, ESA, Copernicus |
| thumbnail:
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thumbnail/thumbnail.png |
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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Date of Image:
8/2/2021
Date of Next Image:
None expected
Summary:
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology, both in Pasadena, California, created this Damage Proxy Map (DPM) depicting areas that are likely damaged by the recent Mw 6.2 (July 30, 2021) earthquake beneath the ESE of Sullana, Peru. The map was derived from synthetic aperture radar (SAR) images on Aug 02, 2021 by the Copernicus Sentinel-1 satellites operated by the European Space Agency (ESA). The pre-event images were taken before (July 09, 2021 and July 21, 2021) the earthquake. The image covers an area of 102 by 175 kilometers (63 by 108 miles), shown by the large red polygon. Each pixel measures about 30 meters across. The color variation from yellow to red indicates increasingly more significant surface change. Preliminary validation was done by comparing with the Media reports. 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 colored pixels over vegetated areas may be false positives, and the lack of colored pixels over vegetated areas does not necessarily mean no damage. Other areas that had large surface changes between July 21 and August 2 due to rain, flood, or other effects may also be included in the damage proxy estimate. This map is most sensitive to building damage, but small-scale change or partial structural damage may not be detected by this map. Contains modified Copernicus Sentinel data, processed by ESA. Analyzed by the NASA-JPL/Caltech ARIA team. This task was carried out at JPL funded by NASA. Suggested Use:
This damage proxy map shows surface change with yellow to red indicating more significant change or building damage due to the earthquake. 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.
Satellite/Sensor:
Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)
Resolution:
30 meters
Credits:
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/20210730-Sullana_Peru_EQ/DPM/ |
| licenseInfo:
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NASA data and products are freely available to federal, state, public, non-profit and commercial users. This information can be experimental- or research-grade data products and may not be appropriate for operational use. These NASA data products, services, and the Disasters Mapping Portal are intended to aid decision makers and enhance situational awareness, but these data are not guaranteed to be consistently available or routinely updated. Use of this product should include: "Contains modified Copernicus Sentinel data (2021) processed by ESA" |
| catalogPath:
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|
| title:
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aria_dpm_sentinel1_20210802 |
| type:
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Image Service |
| url:
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https://maps.disasters.nasa.gov/ags04/admin/peru_earthquake_202107/aria_dpm_sentinel1_20210802/ImageServer |
| tags:
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["NASA","NASA Disasters Program","ARIA","Sentinel-1","S1","Copernicus","Earthquake","DPM","SAR","Peru"] |
| culture:
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en-US |
| name:
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aria_dpm_sentinel1_20210802 |
| guid:
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|
| spatialReference:
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GCS_WGS_1984 |