| snippet:
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ARIA Damage Proxy Map (DPM) 10/3/2018 produced using JAXA ALOS-2 |
| summary:
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ARIA Damage Proxy Map (DPM) 10/3/2018 produced using JAXA ALOS-2 |
| accessInformation:
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The DPM was created by the NASA-JPL/Caltech ARIA team, and the ALOS-2 data were provided by JAXA. The Earth Observatory of Singapore coordinated with the Sentinel Asia to timely task the ALOS-2 satellite. The algorithm development was carried out at JPL under a contract with NASA. For more information about ARIA, visit: http://aria.jpl.nasa.gov |
| thumbnail:
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thumbnail/thumbnail.png |
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory in Pasadena, California, and Caltech, also in Pasadena, created this Damage Proxy Map (DPM) depicting areas in Central Sulawesi, Indonesia, including the city of Palu, that are likely damaged (shown by red and yellow pixels) as a result of the M7.5 September 28, 2018 earthquake. The map is derived from synthetic aperture radar (SAR) images from the ALOS-2 satellite, operated by Japan Aerospace Exploration Agency (JAXA). The images were taken before (August 8, 2018) and after (October 3, 2018) the earthquake. The map covers an area of 67 by 70 kilometers, shown by the large red polygon. Each pixel measures about 30 meters across. The color variation from yellow to red indicates increasingly more significant ground surface change. Preliminary validation was done in collaboration with the Earth Observatory of Singapore by comparing with local media information and photos. 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. The DPM was created by the NASA-JPL/Caltech ARIA team, and the ALOS-2 data were provided by JAXA. The Earth Observatory of Singapore coordinated with the Sentinel Asia to timely task the ALOS-2 satellite. The algorithm development was carried out at JPL under a contract with NASA.
For more information about ARIA, visit: http://aria.jpl.nasa.gov |
| 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. Please cite the information according to the direction provided in the metadata. Use of this product should include: "Contains modified JAXA ALOS-2 PALSAR data processed by NASA-JPL/Caltech ARIA team (2018)" |
| catalogPath:
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| title:
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aria_dpm_20181003_unlocked |
| type:
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Image Service |
| url:
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https://maps.disasters.nasa.gov/ags03/admin/Sulawesi_Quake_Tsunami_2018/aria_dpm_20181003_unlocked/ImageServer |
| tags:
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["NASA Disasters Program","ALOS-2","Sulawesi","SAR","Indonesia","JAXA"] |
| culture:
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en-US |
| name:
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aria_dpm_20181003_unlocked |
| guid:
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| spatialReference:
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GCS_WGS_1984 |