Vessel Density 2016

For the calculation of the data "AIS Vessel 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 Density" represent the mean spatial density distribution of the ships. The mean spatial ship density is the current number of ships that could be expected in a defined area (grid cell) at any time during a reference period under consideration. 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-Density_Dokumentation_Schiffsdichte_DE.pdf在计算"AIS船舶密度（AIS Vessel Density）"数据集时，研究人员基于随机统计学视角，针对多项参数与船舶类型，对通用船载自动识别系统（AIS）的原始数据开展了评估分析。该数据集的原始数据每年从欧洲海上安全局（European Maritime Safety Agency, EMSA）获取过往一年的相关内容。该信息的收集与存储旨在保障海上交通运行安全，除此之外，还被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船舶密度"数据集表征船舶的平均空间密度分布情况。船舶平均空间密度指的是，在所研究的参考时段内，任意时刻某一划定区域（网格单元）中预计可出现的船舶数量均值。本次统计将船舶划分为五大类别：渔船、货船、油轮、客船以及所有船舶。 如需获取更多信息，请访问：https://gdi.bsh.de/en/data/Vessel-Density_Dokumentation_Schiffsdichte_DE.pdf