A hindcast of the Bohai Bay oil spill during June to August 2011
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A hindcast of the Bohai Bay oil spill during June to August 2011 YANG Yiqiu1, LI Yan1*, LIU Guimei1, PAN Qingqing1, WANG Zhaoyi1 1 Marine Environmental Forecasting Division, National Marine Environmental Forecasting Center, State Oceanic
Administration, Beijing 100081, China Received 21 December 2016; accepted 20 June 2017 ©The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg 2017
Abstract
An operational three-dimensional oil spill model is developed by the National Marine Environmental Forecasting Center (NMEFC), State Oceanic Administration, China, and the model has been running for 9 a. On June 4 and 17, 2011, oil is spilled into the sea water from two separate oil platforms in the Bohai Bay, i.e., Platforms B and C of Penglai 19-3 oilfield. The spill causes pollution of thousands of square kilometres of sea area. The NMEFC’s oil spill model is employed to study the Penglai 19-3 oil-spill pollution during June to August 2011. The wind final analysis data of the NMEFC, which is based on a weather research and forecasting (WRF) model, are analyzed and corrected by comparing with the observation data. A corrected current filed is obtained by forcing the princeton ocean model (POM) with the corrected wind field. With the above marine environmental field forcing the oil spill model, the oil mass balance and oil distribution can be produced. The simulation is validated against the observation, and it is concluded that the oil spill model of the NMEFC is able to commendably simulate the oil spill distribution. Thus the NMEFC’s oil spill model can provide a tool in an environmental impact assessment after the event. Key words: oil spill, hindcast, Lagrangian random walk, oil distribution, swept area Citation: Yang Yiqiu, Li Yan, Liu Guimei, Pan Qingqing, Wang Zhaoyi. 2017. A hindcast of the Bohai Bay oil spill during June to August 2011. Acta Oceanologica Sinica, 36(11): 21–26, doi: 10.1007/s13131-017-1135-7
1 Introduction With the increasing demand for offshore oil exploration, more petroleum has been exploited and drilled from a seabed and transported by tankers. Correspondingly the threat of possible marine oil spill accidents is increasing. Accidental marine oilspill pollution would cause damage to marine environment, the health of mankind, fisheries and so on (Wang et al., 2008; Coppini et al., 2011). The prediction of an oil spill trajectory, a contamination area and a swept area is very important for an environmental impact assessment. And numerical modelling provides an important tool to study and predict the transport and fate of the oil spills, which would assist to plan response actions in advance and minimize the loss. Nowadays, some groups and international community have developed oil spill models and played an important role in an oil spill emergency response. GNOME (general NOAA operational modeling environment) is a publicly available oil spill trajectory model that simulates oil movement and was developed by the National Oceanic and Atmospheric Administration (BeegleKrause 2001)
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