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

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...

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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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