ASPeCt Visual Ice Observations on PIPERS Cruise NBP1704 April-June 2017

This dataset is the csv file of hourly visual ice observations conducted in the ASPeCt protocol on the PIPERS cruise NBP1704 to the Ross Sea during April to June 5 2017. Parameters are ice concentration, thickness, snow depth, floe sizes, etc for up to three categories of ice type within a 1km radius of the ship during the observation. These are identified by date, time and latitude, longitude at the time of observations本数据集为2017年4月至6月5日期间，在罗斯海开展的PIPERS巡航NBP1704任务中，依据ASPeCt协议完成的逐小时视觉海冰观测CSV文件。观测参数涵盖观测时段内船舶周边1公里半径范围内最多三类海冰类型的冰浓度、冰厚、雪深、浮冰尺寸等指标。上述数据以观测时刻的日期、时间、纬度及经度作为标识依据。