Northwest pacific three-dimensional oil spill business emergency forecasting and evaluating system

A technology for evaluating systems and oil spills, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems that are rarely considered

Active Publication Date: 2019-11-01
国家海洋环境预报中心
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Moreover, the vertical turbulent diffusion part of the existing 3D oil spill simulation is basically an empirical formula, and rarely considers the influence of the turbulent characteristics of the ocean current model itself on the oil spill diffusion, and the characteristics of the vertical turbulent diffusion itself of the oil spill itself.

Method used

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  • Northwest pacific three-dimensional oil spill business emergency forecasting and evaluating system
  • Northwest pacific three-dimensional oil spill business emergency forecasting and evaluating system
  • Northwest pacific three-dimensional oil spill business emergency forecasting and evaluating system

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Embodiment 1

[0153] The embodiment of the present invention provides a three-dimensional oil spill operational emergency forecast and evaluation system in the Northwest Pacific Ocean, and realizes the operational operation of the system. For the system structure, see figure 1 , see the business operation process figure 2 . The specific implementation of the system includes the following steps:

[0154] 1. System control center

[0155] This module is the control command center and data exchange center, and controls the other 8 modules. Before starting the system, set the important parameters of the system control center manually or by default, such as manually selecting the processing method of oil spill source information, manually selecting whether to activate the assimilation module, manually selecting whether to activate the collective forecast module, and manually or by default to external Select the forced field file and input oil spill parameters, send instructions to the visua...

Embodiment 2

[0271] At 20:15 on January 6, 2018, Panamanian-registered oil tanker "Sanji" and Hong Kong-registered bulk carrier "Changfeng Crystal" occurred at 124°56.7′ east longitude and 30°42.7′N latitude in the open sea off the Yangtze River Estuary. The ship collided, 32 people fell into the water, the oil pollution spread, and the "Sanchi" tanker caught fire. At 16:45 on January 14, the oil tanker sank at a position of 125°58.4' east longitude and 28°21.9' north latitude, and the oil spilled from the ship was still burning in the sunken sea area. At 09:58 on the 15th, all the open fires on the scene disappeared, and a large area of ​​oil pollution began to drift on the sea surface. By January 25, the oil pollution on the sea surface monitored by satellites had turned to sporadic distribution. Using this system, the oil spill drift trajectory and spread prediction of this oil spill accident was carried out based on the on-site reported shipwreck position and the oil spill position in ...

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Abstract

The invention discloses a northwest pacific three-dimensional oil spill business emergency forecasting and evaluating system. The system comprises an oil spill information rapid processing module, anenvironment information processing module, an oil spill transportation module, an oil spill weathering module, a data assimilation module, an ensemble forecasting module, a geographic information datamodule, a visual analysis module and a system control center module. According to the method, three-dimensional short-term and medium-and-long-term numerical simulation prediction of deep sea oil spill in the northwest Pacific Ocean sea area and application comparison of different vertical diffusion schemes can be realized under the consideration of the action of sea waves. Various kinds of oil source information and oil spill types can be preprocessed and predicted. An external forced field of the oil spill model can be optimized by utilizing field observation data and an optimal interpolation assimilation method in real time. Therefore, the forecasting accuracy is improved. An ensemble forecasting result can be provided. The system has important practical value for scientific research of marine ecological disaster prevention and reduction, design of an emergency response system of a management department and the like.

Description

technical field [0001] The invention relates to numerical simulation technology of drift and diffusion of offshore oil spills, in particular to short-term and mid-to-long-term prediction technology of three-dimensional numerical simulation in deep sea areas, and realizes the field of operational application in Northwest Pacific Ocean areas. Background technique [0002] In the existing studies on the simulation of oil spill transport and diffusion, the transport and spread of sea surface oil spills are mainly affected by sea surface wind field, ocean currents, waves and turbulence, while the transport and spread of underwater oil spills are mainly affected by sea current velocity and turbulence. effect 【80-89】 . Reed et al (1994a) 【90】 It is suggested that 3.5% of the wind speed is assigned to the oil film drift speed in the case of no breaking wave and light wind. However, when the wind speed increases, the spilled oil will be entrained into the water, and the shearing o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 李燕杨逸秋王兆毅
Owner 国家海洋环境预报中心
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