Polar region ice region ocean tide measuring buoy, measuring method and application

Abstract

The invention belongs to the technical field of ocean tide measurement, and discloses a polar region ice region ocean tide measurement buoy, a measurement method and application, and the polar region ice region ocean tide measurement buoy comprises a buoy body; the Beidou navigation positioning system is mounted on the buoy body and used for determining geocentric three-dimensional coordinates of the buoy body on the ice surface; and the ice penetrating radar is mounted on the buoy body and is used for measuring the distance from an antenna to the ice surface and the sea ice thickness. The Beidou navigation and positioning system comprises a north pole satellite navigation and positioning signal receiver and a GNSS antenna, and the GNSS antenna is installed on the north pole satellite navigation and positioning signal receiver and used for receiving signals of three frequency points of the L frequency band. The device and the method can be suitable for polar ice zone tide measurement, observation errors caused by sea ice can be corrected, and the equipment cost is also remarkably reduced.

Description

technical field [0001] The invention belongs to the technical field of ocean tide measurement, and in particular relates to an ocean tide measurement buoy, a measurement method and applications in polar ice regions. Background technique [0002] Tides are usually a process of fluctuations in ocean water levels caused by factors such as the movement of the earth and the relationship between the sun and the moon. Currently, on normal water surfaces, devices such as float tide gauges, pressure gauges, and acoustic tide gauges can be used to observe tides, but Due to the presence of ice in polar regions, current measurement equipment is often unable to observe in polar ice regions. Tide is one of the important marine hydrological parameters, which is of great value for marine scientific research, military support, and disaster prevention and mitigation. [0003] Prior art 1 discloses a method for estimating the volume change of a subglacial lake, application number: CN201811093...

AI Technical Summary

Problems solved by technology

Due to the existence of sea ice, especially in sea ice-covered areas far away from land areas, conventional tide gauges such as acoustic tide gauges, float tide gauges, and seabed pressure gauges are often unable to perform tidal observations normally

Traditional GNSS buoys can also observe tide levels, but ice-based GNSS buoys often compensate for errors caused by changes in sea ice thickness, resulting in significant errors

[0006] Through the above analysis, the existing problems and defects of the existing technology are: the float type tide gauge can only be used in the tide wells along the coast, and cannot be used in the open sea, and the acoustic tide gauge can only be used in land locations such as docks, and needs to be installed and supported The equipment cannot be used in open seas, and the pressure gauges deployed in deep sea often have large lateral errors and high costs, and cannot correct the error effects of sea ice

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