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     "name": "Hydrographic surveys of rivers and lakes using a multibeam echosounder mapping system",
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         "value": "10.3133/fs20183021",
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     "datePublished": "2018",
     "dateModified": "2018-09-25",
     "abstract": "A multibeam echosounder is a type of sound navigation and ranging device that uses sound waves to \u201csee\u201d through even murky waters. Unlike a single beam echosounder (also known as a depth sounder or fathometer) that releases a single sound pulse in a single, narrow beam and \u201clistens\u201d for the return echo, a multibeam system emits a multidirectional radial beam to obtain information within a fan-shaped swath. The timing and direction of the returning sound waves provide detailed information on the depth of water and the shape of the river channel, lake bottom, or any underwater features of interest. This information has been used by the U.S.\u00a0Geological Survey to efficiently generate high-resolution maps of river and lake bottoms.",
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       "name": "U.S. Geological Survey"
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         "name": "Huizinga, Richard J. huizinga@usgs.gov",
         "givenName": "Richard J.",
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         "@type": "Person",
         "name": "Heimann, David C. dheimann@usgs.gov",
         "givenName": "David C.",
         "familyName": "Heimann",
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             "name": "Central Midwest Water Science Center",
             "url": "https://www.usgs.gov/centers/cm-water"
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             "@type": "Organization",
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