Typhoon landing similarity analytical method based on GIS

An analysis method and typhoon technology, which is applied in the field of GIS-based typhoon landing similarity analysis, which can solve problems such as inability to judge typhoon

Active Publication Date: 2014-01-29
SICHUANG TECH CO LTD
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  • Summary
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Problems solved by technology

However, there are also the following disadvantages: typhoon landfall has a spatial expression, and it is impossible to judge the typhoon that landed in a certain area or the typhoon that landed in the surrounding area but with similar shape and landfall wind force, and these typhoons with similar landfall places are all It has great reference significance for the decision-making analysis of the current typhoon

Method used

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Embodiment Construction

[0017] The present embodiment provides a kind of typhoon landfall similarity analysis method based on GIS, it is characterized in that comprising the steps:

[0018] Step S01: On the GIS platform, draw the path map of the current typhoon path; draw the typhoon path map through the time sequence of the latitude and longitude data on the typhoon path nodes in the database;

[0019] Step S02: Determine the range probability circle of the typhoon's future path through the forecast path node of the current typhoon;

[0020] Step S03: By generating the map layer of the range probability circle, at the same time, adding the map layer of the predicted coastline to the GIS platform, and analyzing and judging the intersection of objects in the GIS layer, to obtain the coastline range line segment that may land;

[0021] Step S04: Perform GIS analysis with all historical typhoon data through the coastline range line segment, and judge whether it intersects with the line segment, so as...

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Abstract

The invention relates to the field of flood prevention informatization and weather application, in particular to a typhoon landing similarity analytical method based on the GIS. According to the method, the range of coastlines where a typhoon possibly lands is analyzed by means of the GIS through a forecasted path of the typhoon, a needed list of typhoons which land on similar places is obtained through analysis of the typhoons passing through the coastlines and historical typhoons, and the list of typhoons with similar landing places and similar strength in history can be provided before the typhoon lands, when the typhoon lands and after the typhoon lands, and historical experience references are provided for scientific typhoon prevention.

Description

technical field [0001] The invention relates to the fields of flood control informatization and meteorological application, in particular to a GIS-based typhoon landing similarity analysis method. Background technique [0002] Generally, the impact of typhoon landfall can be divided into the following five categories based on the characteristics of the path: northbound category, disappearance category, frontal landing category, offshore activity category, and South China Sea penetration category. Often different typhoons, in the same season, have great similarities in impact after landing with the same wind force. The existing landfall analysis generally uses the fields in the database to store the name of the landfall, and through the database text search method, the landfall typhoons in the same area are listed for users to query and call. [0003] By searching the text of the landing place from the database, the typhoon at the same landing place can be quickly queried. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G01W1/10
CPCY02A10/40Y02A90/10
Inventor 洪水洁黄敏
Owner SICHUANG TECH CO LTD
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