Offshore oil spill trajectory simulation method based on thickness information

A technology for marine oil spill and trajectory simulation, which is applied in the field of oil spill drift trajectory simulation, and can solve the problems of shortened oil spill trajectory prediction time and reduced simulation accuracy.

Active Publication Date: 2020-07-03
TIANJIN UNIV
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Problems solved by technology

However, the existing oil particle method uses empirical values ​​to estimate the thickness of the oil spill, which has a large deviation from the actual thickness of the oil spill. Using the empirical value of the thickness as the initial value for the iterative calculation of the offshore oil spill trajectory simulation will cause the simulation accuracy to decrease. , and the prediction time of the oil spill trajectory that meets the accuracy requirements is shortened

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  • Offshore oil spill trajectory simulation method based on thickness information
  • Offshore oil spill trajectory simulation method based on thickness information
  • Offshore oil spill trajectory simulation method based on thickness information

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Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] Such as figure 1 As shown, the sea oil spill trajectory simulation method based on thickness information of the present invention comprises steps:

[0054] First, use the remote sensing image and the thickness of the oil spill at sea to obtain the initial value of the calculation of the oil spill volume, then use the weathering model to update the oil spill volume, then use the oil spill volume and the update formula to update the oil particle volume, and then use the hydrodynamic model to update the oil particle volume The coordinate information of the oil spill can be obtained to obtain the oil spill trajectory, and finally the oil spill concentration and oil spill volume ar...

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Abstract

The invention discloses an offshore oil spill trajectory simulation method based on thickness information. Firstly, a remote sensing image and the offshore oil spill thickness are used for obtaining acalculation initial value of the oil spill volume; the method comprises the following steps: firstly, calculating the oil spill concentration and the oil spill amount by utilizing a weathering model,then updating the oil spill volume by utilizing the oil spill volume and an updating formula, then updating coordinate information of oil particles by utilizing a hydrodynamic model so as to obtain an oil spill track, and finally calculating the oil spill concentration and the oil spill amount by utilizing a discretized numerical calculation method. The method has no special requirements for theoil film thickness obtaining device and method, is wide in application range, considers the achievable problem during computer operation, and has high practical value and wide market prospects.

Description

technical field [0001] The present invention relates to the simulation of oil spill drift trajectory after marine oil spill accidents, in particular to a method for simulating oil spill trajectory by comprehensively utilizing oil film thickness information acquired by an offshore oil film thickness measuring device and an oil particle method. Background technique [0002] The marine oil spill accident is the most serious marine ecological pollution and ecological disaster, which causes huge economic losses and pollution consequences. Timely and efficient emergency response to oil spill pollution accidents is an effective means to reduce the impact of oil spill disasters. The oil spill trajectory simulation aims to simulate the irregular shape of the oil film, the drift trajectory, and the amount of oil spilled. It plays an indispensable and important role in the decision-making and implementation of the emergency response plan for oil spill accidents. [0003] At present, t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 陈曦金文韩洪洪王万财李彦知郭海楠韩雅桐
Owner TIANJIN UNIV
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