Measuring method and device of glacier and ice and snow density

A measurement method and glacier technology, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems that the measurement data is not accurate enough, not wide enough, and the data cannot be transmitted remotely, so as to achieve accurate density values, save manpower and material resources, and data storage A large amount of effect

Inactive Publication Date: 2013-06-05
COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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AI Technical Summary

Problems solved by technology

The existing methods for measuring ice and snow density in glaciers all need to be implemented on the spot
And the measurement data is not precise enough and not extensive enough
The data ca

Method used

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  • Measuring method and device of glacier and ice and snow density
  • Measuring method and device of glacier and ice and snow density
  • Measuring method and device of glacier and ice and snow density

Examples

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Embodiment Construction

[0041] The following will be explained in conjunction with an embodiment of the present invention.

[0042]First, determine two positions 30cm apart at a measurement point on the glacier, and then use steam to drill two holes below the glacier at these two positions, with a diameter slightly larger than 7.5cm, and then drill these two holes A PVC pipe with an outer diameter of 75cm and an inner diameter of 70cm is respectively placed inside. The lower end of the PVC pipe should be located 3m below the surface of the glacier. The specific depth can be determined according to the measurement requirements. A fixed pulley is fixed at the bottom of the two PVC pipes. A capstan shaft 3 driven by the same stepping motor is arranged on the top of the PVC pipe above the glacier surface, and two reels 6 of equal diameter are respectively fixed at the center positions of the two PVC pipes on the capstan shaft, and each reel Fix a rope on each. Used soft rope among the embodiment of the ...

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Abstract

The invention relates to a measuring method and a device of glacier and ice and snow density, and provides a measuring method used for measuring the ice and snow density in glacier, and a device utilizing the method. The measuring method and the device overcomes defects in the prior art, and achieves digitization, automation and networking of monitoring of the ice and snow density of the glacier. The measuring method includes that two drilling holes are formed on positions having definite distances with monitoring points on the glacier, radioactive sources and ultrasonic signal sources are placed in the drill holes and can move along the axial direction of the holes, and the radioactive sources or the ultrasonic signal sources and a receiving device can do synchronization movement in the two drilling holes. The receiving device converts radial signals or ultrasonic signals transmitted from an ice and snow layer between the two drilling holes into electric signals, signal pad values in definite depths are calculated according to the electric signals, and ice and snow density values on the corresponding heights can be obtained according to the built computational formulas.

Description

technical field [0001] The invention relates to a method and a device for measuring the ice and snow density of glaciers. Background technique [0002] There are currently two commonly used methods for measuring the density of ice and snow in glaciers in the world: weighing and measuring the volume of melted snow water. One measures the mass of snow and the other measures the volume of snow water. The existing methods for measuring ice and snow density in glaciers all need to be implemented on the spot. And the measurements are not precise enough and not extensive enough. The data cannot be transmitted remotely, and the data processing cannot be automated. Contents of the invention [0003] The invention provides a method for measuring the density of ice and snow in a glacier and a device used in the method, which can overcome the shortcomings of the prior art. [0004] A method for measuring the ice and snow density of glaciers of the present invention is to drill tw...

Claims

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Application Information

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IPC IPC(8): G01N9/24
Inventor 张耀南冯克庭安学敏杨永如火久元敏玉芳
Owner COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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