Study of post-processed GNSS measurements for tidal analysis in the Belgian North Sea
Study of post-processed GNSS measurements for tidal analysis in the Belgian North Sea
复制标题
比利时北海潮汐分析的后处理 GNSS 测量结果研究
DOI：
10.1016/j.oceaneng.2016.04.014
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发表时间：
2016
影响因子：
5
通讯作者：
A. D. Wulf
中科院分区：
文献类型：
--
作者：
C. Stal;Hans Poppe;A. Vandenbulcke;A. D. Wulf
本文对配备GNSS的潮汐浮标的使用进行了评估。北海地区的潮汐预报是由海岸潮汐测量网进行的。这些量具的长期测量结果用于推导潮汐成分，并为每个单独的测量地点建立潮汐预报表。为了估计这些位置之间的潮汐，需要插值。然而，这种计算的质量在海上预测中严重降低。本研究的目的是通过在全海上部署gnss浮标来应对这一挑战。重点是数据处理和分析气象对数据质量的影响。在这方面，将证明气象参数与计算固定位置的能力之间有很强的相关性。根据两次独立测量活动的结果，说明了所开发的数据采集技术可以实现高精度的高程测量。
In this paper, the use of a tidal buoy, equipped with a GNSS, is assessed. The prediction of the tide in the North Sea area is performed by a network of coastal tidal gauges. Long term measurements by these gauges are used to derive tidal constituents and the construction of tidal prediction tables for each separate measurement location. To estimate the tide between these locations, an interpolation is required. However, the quality of this calculation is heavily reduced for offshore predictions. The aim of this research is to deal with this challenge by the deployment of GNSS-buoys on full sea. The focus is on the data processing and the analysis of meteorological influences on the data quality. In this context, a strong correlation between meteorological parameters and the ability to calculate a fixed position will be demonstrated. Based on the results of two separated measurement campaigns, it is stated that the developed data acquisition technique results in highly accurate elevation measurement.