Detection Capability of the Kongsberg HGLP-System

Abstract

The surface wave detection capability of the Kongsberg HGLP-system has been investigated for some areas. The detection capability varies strongly from one region to another. The detection threshold for events in Central Asia is on the average at least 0.5 m sub b units higher than for events in Iran- Afghanistan area at about the same epicentral distance. For explosions in the Kazakh area body wave magnitude 5 is required to excite surface wave trains visible at Kongsberg. A phase change of pi has been found between the Rayleigh wave trains from two presumed underground nuclear explosions in Eastern Kazakh. The Love wave recordings from the same explosions showed unexpectedly large amplitude difference.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1975
Accession Number
ADA012995

Entities

People

  • Eivind Rygg
  • Leif Bruland

Organizations

  • University of Bergen

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Afghanistan
  • Air Force
  • Amplitude
  • Asia
  • Atlantic Ocean
  • Central Asia
  • Detection
  • Explosions
  • Frequency
  • High Gain
  • Histograms
  • Love Waves
  • Nuclear Explosions
  • Oceans
  • Power Spectra
  • Rayleigh Waves
  • Surface Waves

Fields of Study

  • Environmental science
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Nuclear Non-Proliferation and International Security
  • Seismology