Method for judging dynamic strength index of influence on upper-layer oceans by tropical cyclones

A technology of tropical cyclones and power intensity, applied in the direction of electrical digital data processing, instruments, computer-aided design, etc., can solve problems such as inaccuracy, and achieve the effect of improving accuracy and clarifying physical meaning

Active Publication Date: 2020-11-13
JIANGSU OCEAN UNIV
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Problems solved by technology

However, the size of We is not only affected by the wind, but also affected by the complex sea conditions in different se...

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  • Method for judging dynamic strength index of influence on upper-layer oceans by tropical cyclones
  • Method for judging dynamic strength index of influence on upper-layer oceans by tropical cyclones
  • Method for judging dynamic strength index of influence on upper-layer oceans by tropical cyclones

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Embodiment 1

[0039] Embodiment 1, with reference to Figure 1-Figure 3 , a method for determining the dynamic intensity index of tropical cyclones affecting the upper ocean: including the following steps,

[0040] (1) Obtaining tracking data of tropical cyclone track: Typhoon "Matsa" was originally developed from a tropical depression in the northwest Pacific Ocean on July 31, 2005, and it intensified into a typhoon on August 2. "passed over the northern seas of Taiwan, China on August 4, and landed in Zhejiang, China on August 5;

[0041] (2) Obtain the seawater mixed layer depth data during the passage of tropical cyclones: use the GLORYS12V1 product provided by the Global Ocean Copernicus Marine Environmental Monitoring Service to obtain the ocean mixed layer depth data, and follow the trajectory of the typhoon "Matsa" to obtain the distance from the typhoon The grid of 1°×1° in the center calculates the average mixed layer depth in the grid, which is the mixed layer depth data, and ob...

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Abstract

The invention discloses a method for judging a dynamic strength index of influence on upper-layer oceans by tropical cyclones, and belongs to tropical cyclones evaluation methods. The method comprisesthe following steps: acquiring tropical cyclone path tracking data; acquiring depth data of a seawater mixing layer during tropical cyclone transit; extracting required tropical cyclone movement timechange data, longitude and latitude coordinate data, maximum wind speed radius and maximum continuous wind speed data; calculating Coriolis parameters according to a formula; calculating the moving speed of the tropical cyclone; calculating a dynamic intensity index COI of the influence of tropical cyclones on the upper ocean by utilizing a judgment formula; analyzing a calculation result, and evaluating the dynamic intensity of the influence of tropical cyclones on the upper-layer ocean. According to the method, richer and more accurate influence factors are considered, and therefore the calculation result has higher accuracy and practical significance; the method has universality, can be suitable for different sea areas, and provides convenience for researching the influence of tropicalcyclones on the ocean.

Description

technical field [0001] The invention relates to a tropical cyclone evaluation method in the field of meteorology, in particular to a method for judging the dynamic intensity index of the tropical cyclone's influence on the upper ocean. Background technique [0002] Tropical cyclone (Tropical Cyclone, TC) is a disastrous weather system with strong destructive force that occurs in tropical oceans, often bringing strong winds, heavy rains and storm surges. These disasters have brought huge damage to human life and property safety. Threat; the impact of tropical cyclones on the upper ocean is mainly affected by factors such as the intensity and speed of the tropical cyclone itself, the difference in the depth of the mixed layer in the passing sea area, and the magnitude of the Coriolis force. The analysis of the influence intensity is mainly for the individual detailed elaboration of some phenomena, and the comprehensive indicators for quantitative evaluation of each influencing...

Claims

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Application Information

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IPC IPC(8): G06F30/28G06F113/08G06F119/14
CPCG06F30/28G06F2113/08G06F2119/14
Inventor 吕海滨刘昱君邢雪婷葛芯恒
Owner JIANGSU OCEAN UNIV
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