Preliminary noise survey and data report of Saudi Arabian data

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From November 1995 to March 1996 a total of 9 broadband temporary stations were deployed across Saudi Arabian shield. These stations consisted of STS-2 seismometers recorded continuously at 40 sps on RefTek dataloggers. All installations were at bedrock sites. Using data sections selected randomly during the deployment, noise studies showed that most stations were exceptionally quiet with noise level near the USGS low noise model for frequencies higher than 0.1 Hz. At lower frequencies, the horizontal components showed increased noise levels, possibly due to instrumental characteristics. High-frequency (greater than 1 Hz) noise varied as much as 10 db between day ... continued below

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25 p.; Other: FDE: PDF; PL:

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Mellors, R. August 1, 1997.

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Description

From November 1995 to March 1996 a total of 9 broadband temporary stations were deployed across Saudi Arabian shield. These stations consisted of STS-2 seismometers recorded continuously at 40 sps on RefTek dataloggers. All installations were at bedrock sites. Using data sections selected randomly during the deployment, noise studies showed that most stations were exceptionally quiet with noise level near the USGS low noise model for frequencies higher than 0.1 Hz. At lower frequencies, the horizontal components showed increased noise levels, possibly due to instrumental characteristics. High-frequency (greater than 1 Hz) noise varied as much as 10 db between day and night for some stations (RAYN, TAIF) while more isolated stations (HALM) were constant. Seasonal noise levels also varied, with April to June being the quietest months. Slight changes in peak microseism frequency also occurred seasonally.

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25 p.; Other: FDE: PDF; PL:

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OSTI as DE98057720

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  • Other Information: PBD: 1 Aug 1997

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  • Other: DE98057720
  • Report No.: UCRL-ID--128949
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/641096 | External Link
  • Office of Scientific & Technical Information Report Number: 641096
  • Archival Resource Key: ark:/67531/metadc698962

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • August 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 19, 2016, 8:39 p.m.

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Mellors, R. Preliminary noise survey and data report of Saudi Arabian data, report, August 1, 1997; California. (https://digital.library.unt.edu/ark:/67531/metadc698962/: accessed May 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.