Predication method of maritime searching and rescuing target drifting path

Abstract

The invention discloses a predication method of a maritime searching and rescuing target drifting path. A maritime searching and rescuing model is constructed based on an ocean dynamic environment field numerical forecasting technique of ocean surface wind, ocean current, ocean waves and the like to forecast a drifting path of overboard personnel in danger and maritime wrecked ships to give information including positions of a searching and rescuing target of all moment, searching and rescuing radiuses of different possibilities and the like, so that a searching and rescuing commander can give the optimal manner for rescuing in the field in the shortest time and the searching and rescuing movement is safely and rapidly carried out. The predication method specifically comprises the steps: collecting historical weather data; utilizing an atmosphere model to calculate to obtain a wind field of a sea area on the periphery of a maritime dangerous accident happening place; obtaining field wind real-time observation data of the sea area on the periphery of the dangerous accident happening place; carrying out data assimilation on the field wind observation data; adopting an ocean wave numerical value model to forecast a wave field of the sea area on the periphery of the dangerous accident happening place; utilizing the ocean wave numerical value model to forecast a three-dimensional flow field containing wind driven current and tidal current and realize the predication of a dynamic drifting track of the maritime personnel or ships in danger; and directly displaying a predicated value of the searching and rescuing target drifting path.

Description

technical field [0001] The invention relates to maritime search and rescue technology, in particular to a method for predicting the drifting path of a maritime search and rescue target. Background technique [0002] With the expansion of ocean development scale and frequent maritime activities, marine accidents are more concerned by people. Maritime accidents will bring huge disasters to the coastal countries of the world politically, economically and militarily. They will not only cause casualties and property losses, but also bring adverse effects on social development. Therefore, maritime search and rescue work is getting more and more attention from coastal countries. For the rapidly developing maritime transportation and fishing industries, maritime search and rescue operations can provide an irreplaceable guarantee for the safety of personnel and property. [0003] At present, my country's maritime search and rescue command and coordination work mainly relies on the ...

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Problems solved by technology

[0003] At present, my country's maritime search and rescue command and coordination work mainly relies on the experience and judgment of the search and rescue command personnel, and it is not yet possible to quickly and efficiently predict the drift direction and distance range of the wrecked personnel and ships based on the hydrometeorological conditions at the maritime wreck site. This affects the speed and accuracy of command and coordination work, often delaying the timing of search and rescue operations

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