Typhoon near-surface wind eye radius identification method based on measured data of weather station
A technology of measured data and identification method, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inability to accurately identify the radius of the typhoon eye radius, difficult to model accurately, large errors, etc., to avoid Iterative or partial differential equation calculation process, cost saving, and the effect of reducing social and economic losses
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Embodiment 1
[0036] A method for identifying the radius of a typhoon's near-surface eye radius based on measured data from a weather station, comprising the following steps:
[0037] Step 1: When the shortest distance from the center of the typhoon to the land is less than 100 kilometers, start the identification function of the radius of the typhoon eye;
[0038] Step 2: Screen the surface meteorological stations within a typhoon radius of 150 kilometers for identification of the typhoon's near-surface eye. The selected ground automatic weather station i should meet the following four characteristics at the same time:
[0039] a) The distance L between the surface automatic weather station i and the typhoon center i Top 30% of all surface weather stations;
[0040] b) The altitude of ground automatic weather station i should be less than 100 meters;
[0041] c), the ground automatic weather station i should be located inland to avoid the influence of sea breeze;
[0042] d) The maximu...
Embodiment 2
[0050] The effectiveness of this method is verified by using an example of real typhoons causing damage to power grid transmission towers. In 2016, the super typhoon Meranti (No. 1614) caused extremely serious damage to the power grid of my country's coastal province F. image 3It is a schematic diagram of typhoon Meranti passing through the F province power grid and the affected area, and the geographical location of the automatic weather station on the ground is also marked in the figure.
[0051] Depend on image 3 It can be seen that typhoon Meranti approached City X in Province F at 1:00 in the morning, and its 10-level wind circle has a radius of 80 kilometers, covering a large area of the power grid in Province F. At this time, a total of 87 ground automatic stations were relatively close to the center of the typhoon. The wind speed measured by the weather station increased rapidly at 3:00. By 6:00 when Typhoon Meranti had basically left City X, a total of 8 bases ...
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