Three-dimensional Oil Spill Operational Emergency Forecasting and Evaluation System in the Northwest Pacific Ocean

An evaluation system and oil spill technology, which is applied in the short-term, medium- and long-term prediction of three-dimensional numerical simulation of deep-sea waters, and numerical simulation of marine oil spill drift and diffusion.

Active Publication Date: 2021-12-28
国家海洋环境预报中心
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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.

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  • Three-dimensional Oil Spill Operational Emergency Forecasting and Evaluation System in the Northwest Pacific Ocean
  • Three-dimensional Oil Spill Operational Emergency Forecasting and Evaluation System in the Northwest Pacific Ocean
  • Three-dimensional Oil Spill Operational Emergency Forecasting and Evaluation System in the Northwest Pacific Ocean

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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 start the assimilation module, manually selecting whether to start the collective forecast module, manually or by default to external Select the forced field file and input oil spill parameters, send instructions to the visualization m...

Embodiment 2

[0271] At 20:15 on January 6, 2018, Panamanian-registered oil tanker "Sanji" and Hong Kong-registered bulk carrier "Changfeng Crystal" were at 124°56.7′ east longitude and 30°42.7′N latitude in the open sea off the Yangtze River Estuary. A ship collision occurred, 32 people fell into the water, 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 three-dimensional oil spill operational emergency forecasting and evaluation system in the Northwest Pacific Ocean. The system includes a rapid oil spill information processing module, an environmental information processing module, an oil spill transportation module, an oil spill weathering module, a data assimilation module, an aggregate forecast module, Geographical information data module, visual analysis module and system control center module; the present invention can realize three-dimensional short-term and medium-term and long-term numerical simulation prediction and application comparison of different vertical diffusion schemes of deep-sea oil spill in Northwest Pacific sea area under the consideration of ocean waves; Various oil source information and oil spill types are pre-processed and predicted; real-time use of field observation data and optimal interpolation and assimilation methods can be used to optimize the external forcing field of the oil spill model, thereby improving the accuracy of the forecast; ensemble forecast results can be provided; The scientific research on marine ecological disaster prevention and reduction and the design of the emergency response system of the management department have important practical value.

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. Reed et al (1994a) suggested that 3.5% of the wind speed be assigned to the oil film drift velocity in the absence of breaking waves and light wind. However, when the wind speed increases, the spilled oil will be entrained into the water, and the shearing of the ocean curren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
Inventor 李燕杨逸秋王兆毅
Owner 国家海洋环境预报中心
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