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    <titleInfo>
      <title>Damage Assessment in Xochimilco and Tl&#xE1;huac Municipalities, Federal State, Mexico</title>
    </titleInfo>
    <name type="corporate">
      <namePart>United Nations Operational Satellite Applications Programme</namePart>
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    <abstract displayLabel="Abstract">This map illustrates satellite-detected, potentially damaged structures in some affected colonies located in Xochimilco and Tlahuac Municipalities, Federal District, Mexico following the 19 September 2017 M7.1 earthquake. The analysis was performed by Faculty of Geography of the Autonomous University of the State of Mexico (UAEMex) using as post-event WorldView-2 satellite imagery acquired 20 September 2017. UAEMex identified 87 potentially damaged structures from which 63 are located in Santa Maria Nativitas colony and surroundings.</abstract>
    <note displayLabel="Purpose" type="other">This is a preliminary analysis and has not yet been validated in the field. It is important to consider the characteristics of the source imagery used in the analyses when interpreting results. For damage assessments it should be noted that only significant damage to the structural integrity of the buildings analyzed can be seen in imagery, while minor damage such as cracks or holes may not be visible at all. For flood extractions using radar data it is important to note that urban areas and highly vegetated areas may mask the flood signature and result in underestimation of flood waters. Users with specific questions or concerns should contact unosat@unitar.org to seek clarification.</note>
    <subject authority="geonames">
      <geographic authority="geonames" authorityURI="http://www.geonames.org/ontology#">Xochimilco (Mexico City, Mexico)*Tl&#xE1;huac (Mexico City, Mexico)</geographic>
    </subject>
    <subject authority="lcsh">
      <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html">Earthquake damage</topic>
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      </cartographics>
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    <originInfo>
      <dateIssued encoding="w3cdtf" keyDate="yes">2017</dateIssued>
      <publisher>United Nations Institute for Training and Research</publisher>
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    <location>
      <url usage="primary display">https://purl.stanford.edu/wb009gc2544</url>
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    <note type="contact" displayLabel="Contact">unosat@unitar.org</note>
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        <title>United Nations Operational Satellite Applications Programme - GIS Maps and Data</title>
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        <url>https://purl.stanford.edu/qv655cn7837</url>
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    <accessCondition type="useAndReproduction">Under the CC BY-SA license, you are free to share (copy and redistribute the material in any medium or format) and or adapt (remix, transform, and build upon the material) for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. The license terms are that you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. Additionally, you may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.</accessCondition>
    <accessCondition type="license" xlink:href="https://creativecommons.org/licenses/by-sa/3.0/legalcode">This work is licensed under a Creative Commons Attribution Share Alike 3.0 Unported license (CC BY-SA).</accessCondition>
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