Geohydroacoustic Noise Monitoring of Under-Ice Water Areas of Northern Seas

Собисевич, А. Л.; Преснов, Д. А.; Zhostkov, R. A.; Собисевич, Л. Е.; Shurup, A. S.; Лиходеев, Д. В.; Agafonov, Vadim M.

doi:10.3103/s0747923918060105

Cited by 4 publications

(2 citation statements)

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“…The device functionally consists of three main modules (Figure 1a): a CME-4211V analog single-component molecular-electronic measuring instrument (1), a power supply unit ensuring operation of all system nodes (2), and an NDAS-8224 seismic data recorder (3). The design is patent protected (Agafonov et al, 2018). Table 1 shows the main characteristics of the developed buoys.…”

Section: Operational Principles and Installation Of The Measurement Modulementioning

confidence: 99%

“…One of the most promising areas for the development of work in the interests of creating systems for integrated seismic hydroacoustic monitoring is the improvement of passive, eco-friendly seismic methods in relation to the conditions of an ice-covered shallow sea, which are implemented through the use of distributed ice-based antenna systems. Recent achievements in this field [ 7 ] have made it possible to simultaneously study the characteristics of the seafloor, water layer, and ice cover by using seismic and combined vector–scalar hydroacoustic receivers to measure the total geohydroacoustic field [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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The Advanced Prototype of the Geohydroacoustic Ice Buoy

Собисевич

Agafonov

Преснов

et al. 2020

Sensors

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The new-generation geohydroacoustic buoy prototype is designed for simultaneous acquisition of acoustic, hydroacoustic, and seismoacoustic data in various environmental conditions, including onshore and offshore boreholes, yet is specifically targeted for operation in Arctic seas as an element of the distributed ice-class drifting antennas. Modular structure of the geohydroacoustic ice buoy incorporates the advanced data logger and a combination of sensors: vector–scalar hydroacoustic (0.01–2.5 kHz) accelerometer, broadband molecular–electronic (0.03–50 Hz) velocimeter, as well as optional hydrophones. The distinguishing feature of the geohydroacoustic buoy is its low power consumption responsible for consistent autonomous operation of the entire measurement system for at least one week. Results of continuous laboratory tests carried out at the geophysical observatory of the Geophysical Survey of the Russian Academy of Sciences (GS RAS) in Obninsk are presented. It has been confirmed via comparative analysis of recorded time series featuring microseismic noise and teleseismic earthquakes that the prototype well meets the high standards of modern seismology.

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Section: Operational Principles and Installation Of The Measurement Modulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%