A Method of Radar Adaptive Detection of Tornado

An adaptable and radar technology, applied in the field of meteorological detection, can solve the problems of fast arrival at observation points and large coverage of tornadoes, and achieve the effects of improved azimuth resolution, short moving path, and fast time

Active Publication Date: 2021-10-22
雷象科技(北京)有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for radar adaptive detection of tornadoes to solve the technical problems of large coverage, fast arrival at the observation point and complete acquisition of the three-dimensional flow field of tornadoes when observing tornadoes

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  • A Method of Radar Adaptive Detection of Tornado
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  • A Method of Radar Adaptive Detection of Tornado

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Embodiment Construction

[0015] Concrete detection method of the present invention is as follows:

[0016] First, select N points in the tornado-prone area, and the distance between adjacent points is 60-100 kilometers. Every three points form a triangle (preferably an equilateral triangle) and arrange N mobile weather radars at these points respectively. During the time when the tornado did not occur, every three adjacent radars made joint observations to obtain three-dimensional detection data. see figure 1 As shown, it is a layout diagram when N=6.

[0017] The combination and scanning sequence of coordinated observation are: (1) radars 1, 3, and 4 simultaneously scan the triangle formed by 1, 3, and 4; (2) radars 1, 2, and 4 simultaneously scan the triangle formed by 1, 2, and 4; ( 3) 3, 5, 4 radars simultaneously scan the triangle formed by 3, 5, 4; (4) 4, 5, 6 radars simultaneously scan the triangle formed by 4, 5, 6. Then go back to (1) and repeat.

[0018] When a tornado occurs, if figur...

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Abstract

The invention discloses a method for radar adaptive detection of tornadoes. The steps are as follows: N points are selected in a tornado-prone area, the distance between adjacent points is 60-100 kilometers, and every three adjacent points forms a triangle , N mobile weather radars are arranged at these points respectively. During the time when the tornado does not occur, each group of three adjacent radars scans the triangular area at the same time, and performs cooperative observation in sequence to obtain three-dimensional detection data; When a tornado occurs, adjust the position of the moving weather radars so that the above N moving weather radars are arranged in every three adjacent weather radars along the possible moving direction of the tornado, with the distance between adjacent weather radars within the range of 20 to 40 kilometers. The three points form a triangle layout, the tornado enters the triangle, and the three radars start to scan the corresponding triangle at the same time. The invention can solve the technical problems of large coverage, fast arrival time at the observation point and complete acquisition of the three-dimensional flow field of the tornado when observing the tornado.

Description

technical field [0001] The invention relates to a meteorological detection technology, in particular to a radar detection method for tornadoes. Background technique [0002] The traditional radar detection method of tornado: one is to install one or several weather radars in the tornado-prone area, waiting for the tornado to occur or move in for detection; the other is to use one or several mobile weather radars in the tornado When a tornado occurs or is likely to occur, go to the area where the tornado occurs to detect it. The former is equivalent to sitting on the sidelines and waiting for a rabbit, and the capture efficiency is low. The latter has mobility and high capture efficiency. However, each radar detects independently and cannot obtain effective three-dimensional flow field information. Contents of the invention [0003] The purpose of the present invention is to provide a radar adaptive method for detecting tornadoes, so as to solve the technical problems of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/95
CPCG01S13/95Y02A90/10
Inventor 马舒庆王国荣
Owner 雷象科技(北京)有限公司
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