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Radar meter for measuring sea ice thickness

A thickness measurement and measuring instrument technology, applied in measurement devices, instruments, signal transmission systems, etc., can solve the problems of inconvenient high-precision sea ice observation, long period of fixed-point satellite remote sensing images, and inability to achieve fixed-point timing observations.

Inactive Publication Date: 2008-01-16
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

Satellite remote sensing to measure ice thickness is to retrieve parameters such as ice thickness and density through sea ice remote sensing images. Due to the influence of cloud systems and other weather conditions, due to the periodic operation of satellites, the period of fixed-point satellite remote sensing images displayed is long and cannot be realized. Fixed-point and regular observations bring inconvenience to high-precision sea ice observations

Method used

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  • Radar meter for measuring sea ice thickness

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Embodiment Construction

[0014] The present invention is described in further detail below in conjunction with accompanying drawing:

[0015] As shown in Figure 1 and Figure 2, the bracket carrying the radar sea ice thickness measuring instrument 1 is installed on the ice area, that is, the ship and shore station engineering points. In order to improve the resolution ability of the radar sea ice thickness measuring instrument, it is required The erection height of the ice thickness measuring instrument is between 2 and 10m from the ice area. Aim the launch horn of radar 7 at the ice surface, the angle of the horn is 14°, start radar 7, and emit a narrow pulse width of 10 -9 ~10 -12 / s Electromagnetic waves. Electromagnetic waves first propagate in the air 4 and then irradiate the upper surface of the sea ice 5 . A part of the electromagnetic wave is reflected or scattered on the upper surface of the sea ice 5, and the echo signal generated by the scattering can determine the time t for the electrom...

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Abstract

The inventive sea ice thickness radar measuring device is a technology for measuring sea coast ice thickness using radar, belonging to the technical filed of marine environment motoring. The measuring device mainly comprises radar, a communication interface, a monitor, a computer, a printer and a data transmission module. In accordance with the characteristic that the electric wave at gas-ice interface and ice-water interface has strong echo wave, the invention uses microwave radar with ultra wide band and narrow pulse width (10-12 / s) as detection mean, acquires sea ice thickness information from the raw data of radar echo wave, and realizes acquisition, storage, display, output and print of ice thickness measurement data from radar. The invention realizes non-contact on-site fixed-point real-time measurement, and can detect sea ice with 3-6 cm thickness. In particular, the invention realizes the measurement of thin sea ice with thickness of 3-10 cm.

Description

technical field [0001] The invention belongs to the technical field of marine environment monitoring and relates to a radar sea ice thickness measuring instrument which uses radar to measure the thickness of fixed ice on the sea. Background technique [0002] Freezing is a common natural phenomenon in winter in high latitude areas, which brings great harm to water conservancy projects and offshore engineering facilities in various countries. Ice science belongs to the interdisciplinary science of solid mechanics, fluid mechanics, thermodynamics, physical geography and other disciplines, and thickness is one of the basic parameters. The measurement of sea ice thickness has always been a technical problem to be solved urgently in the development of petroleum in marine ice areas, port engineering in ice areas, detection of polar ice thickness, and military marine technical services; The subtle process of ice thickness change has become an international problem that has yet to ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B15/02G08C17/02G08C19/00
Inventor 赵宝刚邵秘华陶平孙延维丁光辉
Owner DALIAN MARITIME UNIVERSITY
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