Study on Oil Spill Emergency Information System Based on GIS

In order to meet the requirements of ocean environment protection, this paper builds a set of Oil Spill Emergency Information System. Combining with Geographic Information Systems (GIS), the system built in present paper involves three modules: Situation Input, Computation and Results Output. Single-point Forecasting Method is adopted in tide forecast model with a high computational efficiency, which satisfies the timeliness requirement of oil spill forecast. A fractional steps simulation method is employed in oil spill model, which can more truly reflect the motion of spilled oil compared with currently prevailing Oil Parcel Method. The system can not only forecast the drift, diffusion and property change process in a quick, accurate and visualized way, but can predict and assess the impact on environmental sensitive areas in relevant sea area, which will quickly and effectively provide a technical support to offshore oil spill emergency plan in relevant districts or ports. Thus the system has its theoretical and practical significance in reality.