利用半参数模型估计确定验潮组网的深度基准面

Determining the Depth Datum of the Tide Network Using Semi-parametric Model Estimation

深度基准面的确定是进行海洋测量的基础,准确确定深度基准面是进行海洋测量的有效前提。提出了一种将CORS技术与验潮组网技术进行结合的新传递深度基准面的方法,实现长、短期验潮站同步验潮实现深度基准面的增强传递;提出了采用半参数模型理论来求取潮差比的计算方法;具体阐述了验潮组网通过间接平差求取短期验潮站的深度基准面的计算方法,减少了验潮测量的人力投入,计算潮差比时考虑了系统误差的影响,计算短期验潮站时考虑了观测误差对深度基准面传递的影响。

The determination of the depth datum is the basis for ocean measurements.Accurate determination of the depth datum is an effective prerequisite for ocean measurements.This paper proposes a new method of transmitting depth datum combining CORS technology with tide station network technology,which realizes the simultaneous transmission of long-term and short-term tide stations to achieve enhanced transmission of depth datum;a semi-parametric model theory is proposed to calculate the tidal ratio;it is described in detail that the method of calculating the depth reference of the short-term tide station by indirect adjustment.These methods proposed above could reduce the manpower input.The influence of the systematic error is considered when calculating the tidal range.The influence of the observation error on the transmission of the depth reference is considered when calculating the short-term tide station.