Fixed-point ice thickness and water level integrated and continuous monitoring method

Abstract

The invention relates to an ice thickness and water level integrated and continuous monitoring method, which belongs to the technical field of hydrological monitoring. The monitoring device is composed of a lightning arrester, a wind power generation device, a triangular steel tower, a solar power generation device, a mounting base, an energy storage battery, a swiveling arm, an air coupled radarsensor (internally provided with a transmitter, a receiver and the like) and an integrated control box (internally provided with a wind-solar hybrid controller, a remote telemetry switch, a GPS module, and a 4G digital transmission module). When mounting and connection are completed, a remote computer opens each control module through GSM, relevant parameters are transmitted to the radar sensor through the 4G module, a radar map with GPS time annotation is received based on the 4G module, according to the two-way time of radar waves in the air and the two-way time deltat in an ice cover recorded by the radar map, the distance between the radar and the upper surface of the ice cover and the ice cover thickness deltah are calculated automatically by using formulas (3) and (4), and by using formulas (5) and (6), an ice cover upper surface or free water surface height H1 and an ice cover lower surface height H2 are calculated automatically.

Description

technical field [0001] The invention belongs to the technical field of hydrological monitoring in the water conservancy industry, and in particular relates to a fixed-point ice thickness and water level integrated continuous monitoring method. Background technique [0002] Existing water level monitoring technologies mostly use water gauges or 26GHz radar water level gauges. This technology can continuously monitor changes in the elevation of free water surfaces such as rivers, lakes, and channels, as well as changes in the elevation of the upper surface of the ice sheet during ice flood seasons, but cannot monitor changes in ice sheet thickness and Changes in the elevation of the subsurface of the ice sheet, that is, changes in the subglacial water level, are not conducive to the continuous monitoring of multiple elements of hydrology in northern rivers and lakes. [0003] Ice thickness refers to the vertical distance from the upper surface of the ice sheet to the lower sur...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of using this technology to monitor ice thickness is that manual drilling of ice holes is required for measurement, which is time-consuming and laborious, with low automation and cannot be continuously monitored, which threatens the safety of personnel, especially ice thickness monitoring on unstable ice sheets.

[0005] Ground-penetrating radar ice thickness monitoring technology is a monitoring technology that drags ground radar on the ice surface to detect the thickness of the ice sheet by contact. To monitor changes in ice thickness during the period of stable ice cover, it is impossible to realize integrated continuous monitoring of water level and ice thickness

[0006] Thermal resistance method monitoring ice thickness technology is an automatic monitoring technology that uses temperature sensors to monitor the temperature gradient of the ice layer to calculate the thickness of the ice layer. This technology needs to bury the temperature sensor in advance, which is labor-intensive and can only monitor the ice thickness during the stable ice cover period. , which is not conducive to the continuous monitoring of the whole cycle of ice thickness production and consumption and the integration of water level and ice thickness, and is not conducive to the continuous monitoring of ice thickness at the same location for many years

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