Dynamic calculation of ship exhaust emissions based on real-time AIS data
Dynamic calculation of ship exhaust emissions based on real-time AIS data
复制标题
基于实时AIS数据的船舶废气排放动态计算
DOI：
10.1016/j.trd.2020.102277
复制
发表时间：
2020-03-01
影响因子：
7.6
通讯作者：
Yang, Tiantian
中科院分区：
文献类型：
--
作者：
Huang, Liang;Wen, Yuanqiao;Yang, Tiantian
基于活动的方法正日益成为计算港口船舶废气排放量的一种方法。现有的研究主要是将该方法应用于历史船舶轨迹数据，建立和分析各种港口的船舶排放清单。然而，这种静态的排放清单不能满足船舶排放实时监测的需要。提出了一种基于实时船舶轨迹数据的船舶废气排放动态计算方法。首先，将船舶AIS实时信息分割成连续的数据块，进行轨迹提取、关联和插值等一系列预处理操作；然后根据船舶属性，通过数据库查询和回归分析确定船舶活动参数。随后，采用改进的基于活动的方法对船舶废气排放进行分布式估计。在网格模型的基础上，通过对所有船舶排放进行空间分配，实现区域船舶排放的统计动态计算。以深圳港口船舶废气排放实时监测平台为例，验证了该方法的有效性。
The activity-based methodology is becoming an increasing way to calculate exhaust emissions from ships in a port. Existing studies make great effort to build and analyze ship emission inventory in a variety of ports by applying this method to historical ship trajectory data. This kind of static emission inventory however, cannot meet the needs of real-time ship emission monitoring. This article proposes a method of dynamic calculation of ship exhaust emissions based on real-time ship trajectory data. Firstly, real-time ship AIS messages are partitioned into continuous data blocks and go through a series of pre-processing operations, including trajectory extraction, association and interpolation. Ship activity parameters are then determined by database querying and regression analysis based on ship attributes. Subsequently, an improved activity-based methodology is employed to estimate exhaust emissions from ships in a distributed way. Based on the grid model, regional ship exhaust emissions can be statistically and dynamically calculated by the spatial allocation of all ship emissions. In a case study, a real-time monitoring platform for ship exhaust emissions in Shenzhen port is developed to demonstrate the effectiveness of the proposed method.