Vessel Traffic Density 2017 - WMS

For the calculation of the data "AIS Vessel Traffic Density", the data of the Universal Shipborne Automatic Identification System (AIS) were evaluated with regard to various parameters and ship types under stochastic aspects. The data are requested once a year for the past year from the European Maritime Safety Agency (EMSA). Among others, the information is collected and stored for the purpose of securing maritime traffic and is used for the manufacture of products produced for navigation by the Federal Maritime and Hydrographic Agency (BSH). The data "AIS Vessel Traffic Density" represent the mean spatio-temporal density distribution of the ships. This is the average number of ships that have passed through a defined area (grid cell) in a certain period of time. The counting distinguishes between five types of vessels: fishing vessels, cargo vessels, tankers, passenger vessels and all vessels. For more information, please visit: https://gdi.bsh.de/en/data/Vessel-Traffic-Density_Dokumentation_Schiffsverkehrsdichte_DE.pdf为计算"AIS船舶交通密度（AIS Vessel Traffic Density）"数据集，需从随机分析视角，针对多项参数与船舶类型，对通用船载自动识别系统 AIS (Universal Shipborne Automatic Identification System) 的数据开展评估。该数据集每年向欧洲海事安全局（European Maritime Safety Agency, EMSA）申请获取上一年度的回溯数据。此外，该信息的收集与存储旨在保障海上交通秩序，并由德国联邦海事与水文局（Federal Maritime and Hydrographic Agency, BSH）用于研发航海相关产品。"AIS船舶交通密度"数据集表征船舶的平均时空密度分布，即特定时段内经过某一划定区域（网格单元）的船舶平均数量。该统计将船舶划分为五类：捕捞渔船、货船、油轮、客船以及全类型船舶。如需获取更多信息，请访问：https://gdi.bsh.de/en/data/Vessel-Traffic-Density_Dokumentation_Schiffsverkehrsdichte_DE.pdf