| 摘要: |
| 基于溢油与海冰、水、大气的相互作用原理，建立了渤海结冰海区溢油行为数值模式。该模式模拟了结冰海区中油膜的输运过程，与国外有关模式相比更加重观冰场和冰速场的作用。海冰及潮流模式采用被实况检验过的渤海海冰数值预报模式。数值试验结果表明，本数值模式正确地描述了冰区溢油在扩展、漂移过程中对风场、潮流场、冰场、尤其对冰密集度的敏感性。该模式为及时清除溢油、进行溢油灾害评估及保护海洋环境等提供了可靠的依据。 |
| 关键词: 结冰海区 溢油行为 数值试验 |
| DOI： |
| 分类号: |
| 基金项目:国家海洋局资助项目，海管发1995－262 |
附件 |
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| NUMERICAL EXPERIMENT ON THE BEHAVIOUR OF OIL SPILLS IN ICE-INFESTED WATERS IN THE BOHAI SEA |
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YU Jia-ai1, ZHANG Bo1, LlU Qin-zheng2, CHEN Wei-bin1, WANG Ren-shu1
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1.National Marine Environmental Monitoring Center, Dalian, 116023;2.College of Marine Environment, Ocean Univesity of Qingdao, Qingdao, 266003
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| Abstract: |
| The numerical model on the behaviour of oil spill in ice-infested waters in the Bohai Sea described here consists of an oil slick transformation model, a surface current model, and a sea ice model. The oil slick transformation model simulates the spilled slick transformation process, including drifting, spreading, evaporation, emulsification. A Lagrangian discrete-parcel algorithm is adopted. The sea ice and surface current modeling were undertaken using the sea ice forecast model of the Bohai Sea developed by Wang Renshu (1995), verified by observation data.
The input data required by the computer model include location of spill, spill volume of flow rate, oil physical-chemical properties, wind field and initial sea ice field. The output information of the computer model includes time-dependent oil contaminated area, trajectory of center of oil mass and time-dependent oil physical-chemical properties. A numerical experiment on the behavior of oil spills in ice-infested waters in the Bohai Sea was carried out and discussed. The numerical experiment showed that the model correctly describes sensitivity to wind field and ice field. The model can be used to develop cleanup measures in the case of an actual spill and to assess likely environmental impacts of spills. |
| Key words: Ice-infested waters, Behaviour of oil spill, Numerical experiment |
