FEATURES OF THE STONE-ICE AVALANCHE IN THE REGION OF DEVDORAK GLACER ON MAY 17, 2014 ON THE INSTRUMENTAL DATA OF THE KARMADON PARAMETRIC RANGE

  • V. B. Zaalishvili Geophysical institute VSC RAS, Russia, 362002, RNO-Alania, Vladikavkaz, Markov Str., 93 а
  • D. A. Melkov Geophysical institute VSC RAS, Russia, 362002, RNO-Alania, Vladikavkaz, Markov Str., 93 а
Keywords: glacier, avalanche like stream, rock-ice avalanche, monitoring, seismic records, energy release diagram, wavelet analysis

Abstract

In connection with the activation of dangerous natural processes in the Caucasus and in particular the fall of the Kolka glacier on September 20, 2002, the core of the complex observational network «Karmadon Parametric Range» was formed in September 2003. The main purpose of the new network was instrumental monitoring of dangerous geological natural and man-caused processes in the region. The network recorded a collapse of the mass of ice and rocks in the region of the Devdorak glacier on May 17, 2014 and the movement of the formed stone-ice avalanche. The diagrams of energy release were calculated and a spectral-temporal analysis of the records for the nearest Kolka and Karmadon stations was performed. The general regularities of the movement with the event on September 20, 2002 on the Kolka Glacier are noted, the possible velocities of the avalanche flow are calculated.
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Published
2017-12-28