The Ascension Island hydroacoustic experiment: purpose, data set features and plans for future analysis

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Calibration of hydroacoustic and T-phase stations for Comprehensive Nuclear-Test-Ban Treaty (CTBT) monitoring will be an important element in establishing new operational stations and upgrading existing stations. Calibration of hydroacoustic stations is herein defined as precision location of the hydrophones and determination of the amplitude response from a known source energy. T-phase station calibration is herein defined as a determination of station site attenuation as a function of frequency, bearing, and distance for known impulsive energy sources in the ocean. To understand how to best conduct calibration experiments for both hydroacoustic and T-phase stations, an experiment was conducted in May, 1999 ... continued below

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Harben, P E; Rock, D & Rodgers, A J July 23, 1999.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 14 times , with 4 in the last month . More information about this article can be viewed below.

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Description

Calibration of hydroacoustic and T-phase stations for Comprehensive Nuclear-Test-Ban Treaty (CTBT) monitoring will be an important element in establishing new operational stations and upgrading existing stations. Calibration of hydroacoustic stations is herein defined as precision location of the hydrophones and determination of the amplitude response from a known source energy. T-phase station calibration is herein defined as a determination of station site attenuation as a function of frequency, bearing, and distance for known impulsive energy sources in the ocean. To understand how to best conduct calibration experiments for both hydroacoustic and T-phase stations, an experiment was conducted in May, 1999 at Ascension Island in the South Atlantic Ocean. The experiment made use of a British oceanographic research vessel and collected data that will be used for CTBT issues and for fundamental understanding of the Ascension Island volcanic edifice.

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1.6 Megabytes pages

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  • The 21st Seismic Research Symposium: Technologies for Monitoring The Comprehensive Nuclear Test Ban Treaty, Las Vegas, NV (US), 09/21/1999--09/24/1999

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  • Report No.: UCRL-JC-134213
  • Report No.: GC0402000
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 13888
  • Archival Resource Key: ark:/67531/metadc624782

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  • July 23, 1999

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 2:14 p.m.

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Harben, P E; Rock, D & Rodgers, A J. The Ascension Island hydroacoustic experiment: purpose, data set features and plans for future analysis, article, July 23, 1999; California. (digital.library.unt.edu/ark:/67531/metadc624782/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.