The Advanced Prototype of the Geohydroacoustic Ice Buoy

Sensors

Vadim Agafonov¹  Leonid Sobisevich²  Dmitriy Presnov²  Ruslan Zhostkov²  Valentin Gravirov²  Dmitry Likhodeev² 

[1] Moscow Institute of Physics and Technology, Department of Physical and Quantum Electronics, 141700 Moscow, Russia;Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, 123242 Moscow, Russia;

关键词: molecular–electronic seismometer;    geohydroacoustic ice buoy;    data logger;    ice-class drifting antenna;    geophysical monitoring in arctic seas;   

DOI  :  10.3390/s20247213

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown