The simulation of trajectory of the floatings in the North Yellow Sea during the oil spilling event in Dalian in summer of 2010
2010 年夏季大连溢油事件期间北黄海漂流浮标移动轨迹的数值模拟

A twice nested circulation model system on the basis of the Princeton ocean model (POM) was set up to simulate the satellite tracked surface floating trajectory during oil spilling event in Dalian in summer of 2010, and the model result was compared with observation data. It was indicated that the simulated trajectory agreed well with the observations while the simulated movement of the tracer was a little slower than that of the observed movement. The correlation coefficient of the zonal and meridianal component of surface velocity between simulation and observation were 0.6548, 0.3659 and 0.4836, 0.3961 respectively in two observation location, which were all greater than critical correlation coefficient (0.1946) with a 95% of credibility interval. The simulated velocity time series agreed well with the observation in variability but smaller in value. It was suggested that the model system in this study played well in simulating the ARGOS trajectory in the North Yellow Sea during the oil spilling event in Dalian in 2010, which was helpful to the environmental estimation and early warning.