Vessel Density Grid 2015

This dataset contains the average weekly shipping density for the whole of the UK at a 2km grid resolution. For 2015, AIS datasets were sampled from the first seven days of each month, commencing with January,at monthly intervals.The total value for all 12weeks was divided by 12to determine the weekly average, therefore decimal values may occur for certain cells. The weekly average was also multiplied by 52 to provide the estimated annual average. Ship type groups (STG):0 - Unknown Vessels1 - Non-Port service craft2 - Port service craft3 - Vessels engaged in dredging or underwater operations4 - High Speed Craft5 - Military or Law enforcement6 - Passenger7 - Cargo8 - Tankers9 - Fishing vessels10 - Recreational vesselsThe field headings in the attribute table are as follows: CELL_ID - ID of grid cellAvg_STG_0 - Weekly average number of transits of Unknown Vessels Avg_STG_1 - Weekly average number of transits of Non-Port service craft Avg_STG_2 - Weekly average number of transits of Port service craft Avg_STG_3 - Weekly average number of transits of Vessels engaged in dredging or underwater operations Avg_STG_4 - Weekly average number of transits of High Speed Craft Avg_STG_5 - Weekly average number of transits of Military or Law enforcement vesselsAvg_STG_6 - Weekly average number of transits of Passenger vesselsAvg_STG_7 - Weekly average number of transits of Cargo vesselsAvg_STG_8 - Weekly average number of transits of Tankers Avg_STG_9 - Weekly average number of transits of Fishing vessels Avg_STG_10 - Weekly average number of transits of Recreational vessels Avg_Total_STG - Weekly average number of all vessel transits Weekly_Avg_STG_Total - Weekly average number of all vessel transits Yearly_Avg_STG_Total - Estimated annual density of all vessel transits

本数据集收录了整个英国的平均每周航运密度，以2公里网格分辨率呈现。针对2015年，自动识别船舶系统（AIS）数据集从每年的前七天内每月选取样本，起始月份为1月，并以月度间隔进行采样。将12周的总数均分为12份，以确定每周的平均值，因此某些单元格可能存在小数值。此外，每周的平均值还乘以52，以提供估算的年度平均密度。船舶类型分组（STG）如下：0 - 未知船舶1 - 非港口服务船只2 - 港口服务船只3 - 参与疏浚或水下作业的船舶4 - 高速船只5 - 军事或执法船只6 - 客船7 - 货船8 - 油轮9 - 渔船10 - 休闲船只。属性表中的字段标题如下：CELL_ID - 网格单元IDAvg_STG_0 - 未知船舶每周平均通过次数Avg_STG_1 - 非港口服务船只每周平均通过次数Avg_STG_2 - 港口服务船只每周平均通过次数Avg_STG_3 - 参与疏浚或水下作业船舶每周平均通过次数Avg_STG_4 - 高速船只每周平均通过次数Avg_STG_5 - 军事或执法船只每周平均通过次数Avg_STG_6 - 客船每周平均通过次数Avg_STG_7 - 货船每周平均通过次数Avg_STG_8 - 油轮每周平均通过次数Avg_STG_9 - 渔船每周平均通过次数Avg_STG_10 - 休闲船只每周平均通过次数Avg_Total_STG - 所有船舶每周平均通过次数Weekly_Avg_STG_Total - 所有船舶每周平均通过次数Yearly_Avg_STG_Total - 所有船舶年度密度估算