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snippet: ARIA-SG Damage Proxy Map v3 (Copernicus Sentinel-1) on 8/15/2021 for the Haiti Earthquake August 2021
summary: ARIA-SG Damage Proxy Map v3 (Copernicus Sentinel-1) on 8/15/2021 for the Haiti Earthquake August 2021
accessInformation: ARIA, ARIA-SG, NASA-JPL/Caltech, Earth Observatory of Singapore, ESA, Copernicus
thumbnail:
maxScale: 36111.9096430487
typeKeywords: ["Data","Service","Image Service","ArcGIS Server"]
description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN STYLE="font-weight:bold;">For Version 2 of the 8/15/2021 DPM</SPAN><SPAN>: </SPAN><A href="https://maps.disasters.nasa.gov:443/arcgis/home/item.html?id=384e80a45ad140698a21ddc74002a12a" STYLE="text-decoration:underline;"><SPAN>https://maps.disasters.nasa.gov/arcgis/home/item.html?id=384e80a45ad140698a21ddc74002a12a</SPAN></A></P><P><SPAN STYLE="font-weight:bold;">For Version 1 of the 8/15/2021 DPM: </SPAN><A href="https://maps.disasters.nasa.gov:443/arcgis/home/item.html?id=cb0386417ce84a04bc0d132bb560f740" STYLE="text-decoration:underline;"><SPAN>https://maps.disasters.nasa.gov/arcgis/home/item.html?id=cb0386417ce84a04bc0d132bb560f740</SPAN></A></P><P><SPAN>NOTE: There are likely significant numbers of false positives in the mountainous and vegetated areas as well as mapped landslides. This map is most sensitive to building damage and liquefaction, but small scale change or partial structural damage may not be detected.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Summary:</SPAN></P><P><SPAN>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 that are likely damaged by the Mw7.2 earthquake (Aug 14, 2021, local time) in west Haiti. The map was derived from synthetic aperture radar (SAR) images on Aug 15, 2021 by the Copernicus Sentinel-1 satellites operated by the European Space Agency (ESA). The pre-event images were taken before (Aug 03, 2021 and July 22, 2021) the earthquake.</SPAN></P><P><SPAN>The image covers an area of 96 by 250 kilometers (60 by 155 miles). 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.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Suggested Use:</SPAN></P><P><SPAN>The color variation from yellow to red indicates increasingly more significant surface change. Preliminary validation was done by comparing with the Media reports.</SPAN></P><P><SPAN>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. This map is most sensitive to building damage, but small scale change or partial structural damage may not be detected by this map. Other strong land changes such as landslides, liquefaction or flooding in areas with no buildings can also show a positive signal on the damage proxy map.</SPAN></P><P><SPAN>NOTE: This DPM should only be used over urban areas and is not expected to be reliable over vegetated areas where false negatives are to be expected. There are likely significant numbers of false positives in the mountainous and vegetated areas as well as mapped landslides. This map is most sensitive to building damage and liquefaction, but small scale change or partial structural damage may not be detected.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Satellite/Sensor:</SPAN></P><P><SPAN>Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)</SPAN></P><P><SPAN STYLE="font-weight:bold;">Resolution:</SPAN></P><P><SPAN>30 m</SPAN><SPAN STYLE="font-weight:bold;">e</SPAN><SPAN>ters</SPAN></P><P><SPAN STYLE="font-weight:bold;">Credits:</SPAN></P><P><SPAN>The product contains modified Copernicus Sentinel data (2021), processed by ESA and analyzed by the EOS-RS team at the Earth Observatory of Singapore (EOS) in collaboration with NASA-JPL and Caltech.</SPAN></P><P><SPAN>For more information about ARIA, visit: </SPAN><A href="http://aria.jpl.nasa.gov:80/" STYLE="text-decoration:underline;"><SPAN>http://aria.jpl.nasa.gov</SPAN></A></P><P><SPAN>For more information about EOS, visit: </SPAN><A href="http://earthobservatory.sg:80/" STYLE="text-decoration:underline;"><SPAN>http://earthobservatory.sg</SPAN></A></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><A href="https://maps.disasters.nasa.gov:443/ags04/services/haiti_earthquake_202108/aria_dpm_sentinel1_v3_20210815/ImageServer/WMSServer" STYLE="text-decoration:underline;"><SPAN>https://maps.disasters.nasa.gov/ags04/services/haiti_earthquake_202108/aria_dpm_sentinel1_v3_20210815/ImageServer/WMSServer</SPAN></A></P><P><SPAN STYLE="font-weight:bold;">Data Download:</SPAN></P><P><A href="http://ariasg-products.earthobservatory.sg:80/EOS-RS_202108_Haiti_Earthquake/" STYLE="text-decoration:underline;"><SPAN>http://ariasg-products.earthobservatory.sg/EOS-RS_202108_Haiti_Earthquake/</SPAN></A></P></DIV></DIV></DIV>
licenseInfo: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>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. Please cite the information according to the direction provided in the metadata. Use of this product should include: "Contains modified Copernicus Sentinel data (2021) processed by ESA"</SPAN></P><P><SPAN /></P><P><SPAN /></P></DIV></DIV></DIV>
catalogPath:
title: aria_dpm_sentinel1_v3_20210815
type: Image Service
url: https://maps.disasters.nasa.gov/ags04
tags: ["NASA","NASA Disasters Program","Haiti","Caribbean","Earthquake","ARIA","ARIA-SG","Earth Observatory of Singapore","SAR","Copernicus","ESA","Sentinel-1"]
culture: en-US
name: aria_dpm_sentinel1_v3_20210815
guid:
minScale: 2311162.21715511
spatialReference: GCS_WGS_1984