A Thunderstorm Cloud Location Calibration Method Based on the Observation Viewpoint of 3D Atmospheric Electric Field Instrument
An atmospheric electric field meter, thunderstorm cloud technology, applied in the direction of electromagnetic field characteristics, instruments, measuring devices, etc., can solve the problem of single measurement of electric field components, and achieve the effect of improving accuracy and reliability, good positioning performance, and stable performance
Active Publication Date: 2021-12-21
NANJING UNIV OF INFORMATION SCI & TECH
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[0003] In order to overcome the deficiencies in the existing technology, a thunderstorm cloud positioning and calibration method based on the observation angle of the three-dimensional atmospheric electric field instrument is proposed, which can accurately obtain the location of the thunderstorm cloud from the observation angle of the atmospheric electric field instrument, and effectively solve the problem of measuring the electric field by the one-dimensional atmospheric electric field instrument. The problem of single component can improve the accuracy and stability of thunderstorm cloud positioning, and has a better calibration effect
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[0055] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:
[0056] Such as figure 1 , figure 2 Shown, a kind of thunderstorm cloud location calibration method based on three-dimensional atmospheric electric field instrument observation perspective, comprises the following steps: Step 1, establish thunderstorm cloud electric field measurement space model, this model takes N point as coordinate origin, establishes three-dimensional Cartesian coordinate system; Wherein , N(0,0,0) is the location of the three-dimensional atmospheric electric field instrument; M(x,y,z) is the location of the thunderstorm cloud measured by the atmospheric electric field instrument; M'(x,y,0) is the M( x, y, z) on the x0y plane; h is the sum of the three-dimensional atmospheric electric field instrument N(0,0,0) and the altitude; the measured azimuth of the thunderstorm cloud M(x,y,z) , pitch angles are α, β respectively; r is the distance fro...
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The invention belongs to the technical field of thunderstorm cloud monitoring and early warning, and in particular relates to a method for positioning and calibrating thunderstorm clouds based on the observation angle of a three-dimensional atmospheric electric field meter. The specific steps include establishing a three-dimensional electric field model based on the analysis of the electric field measurement principle; obtaining the potential distribution of the thunderstorm cloud at the atmospheric electric field instrument according to the mirror image theory, and deriving the electric field component formulas by using the potential distribution formula including the dielectric constant , get the location of the thunderstorm cloud. Based on the vector relationship shown by the electric field model, the azimuth and elevation angles are derived. Using the data measured by the electric field meter, a new coordinate system is established based on the observation angle of the electric field meter, and the positioning and calibration of the thunderstorm cloud is carried out. The invention can accurately obtain the location of the thunderstorm cloud from the observation angle of the atmospheric electric field instrument, effectively solves the problem of single electric field component measured by the one-dimensional atmospheric electric field instrument, can improve the positioning accuracy and stability of the thunderstorm cloud, and has better calibration effect.
Description
technical field [0001] The invention belongs to the technical field of thunderstorm cloud monitoring and early warning, and in particular relates to a method for positioning and calibrating thunderstorm clouds based on the observation angle of a three-dimensional atmospheric electric field meter. Background technique [0002] Thunderstorm cloud is a cumulonimbus cloud that develops to a certain intensity and produces thunderstorms, and lightning is produced by the accumulation of thunderstorm cloud charges to form polarity. It is a major natural disaster and seriously affects human activities. With the increasing development of social modernization, the equivalent effect of electrostatic induction caused by lightning will cause immeasurable losses to the social economy. For buildings, if they are subjected to lightning induction, sparks will easily appear on the internal structure and poorly grounded metal devices. This is dangerous for warehouses where flammable materials a...
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IPC IPC(8): G01R29/08G01W1/00
CPCG01R29/0842G01W1/00
Inventor 行鸿彦杨旭
Owner NANJING UNIV OF INFORMATION SCI & TECH