Montana Large Aperture Seismic Array

Abstract

The report relates the technical activity associated with the operation, maintenance, and improvement of the Montana Large Aperature Seismic Array (LASA) during the period 1 September - 30 November 1972. The short-period (SP) and long-period (LP) seismograph sensitivity performance statistics are indicated. Performance data on the SP seismometer, the SP high-level sensors, and the LP seismic amplifier are presented. Certain array surficial noise sources are identified. Development of a more comprehensive seismograph calibration technique for measurement of the amplitude and phase characteristics of the SP seismograph over a broad band of frequencies is reported. Progress with the installation of the SP channel CTH gain control modification is reported. Statistics relating to the operation and maintenance of the array and data center equipment and land facilities support are provided.

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Document Details

Document Type
Technical Report
Publication Date
Dec 15, 1972
Accession Number
AD0757276

Entities

People

  • Robert E. Matkins

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Data Acquisition
  • Data Analysis
  • Data Centers
  • Detection
  • Detectors
  • Digital Data
  • Frequency
  • Frequency Response
  • Junction Boxes
  • Load Monitoring
  • Measurement
  • Monitoring
  • Power Supplies
  • Quality Control
  • Resonant Frequency
  • Standards
  • Test Equipment

Fields of Study

  • Engineering
  • Environmental science

Readers

  • Seismology