The Assessment on the Accuracy of Chart Datum Transfer Algorithm

摘要：

　　Chart datum is a vertical reference of ocean depth, which can give the ocean vertical spatial information for Marine Geodesy.Due to time and resource constraints, it is a practical problem of how to determine the chart datum with high accuracy at the short-term tidal stations.In this paper, based on the least-square fitting model, the transfer algorithm for the chart datum at the short-term tidal stations is further developed.Both the accuracy of chart datum computed by this algorithm and the effect on those are presented.The findings of this paper are summarized as follows: The accuracy computed by the least-square fitting model can achieve the centimeter level.The accuracy values determined by the least-square fitting model can further be improved by using the instantaneous ratio of tidal range and selecting the short-distance permanent tidal station.

关键词： Least-square fitting model Short-term tidal station Chart datum transfer

作者: Xinxuan Sun Fumin Xiao Wei Xia Gang Bian Shaohua Jin

作者单位: Department of Hydrography & Cartography,Dalian Naval academy,667 Jiefang Road,Dalian 116018,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 656-659

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）