Piecewise trends and discontinuities in GNSS and SATTG time series

this dataset contains estimates of piecewise trends and discontinuities in vertical land motion (vlm) time series. the time series are based on two techniques, the global navigation satellite system (gnss) and differences of satellite altimetry and tide gauge measurements (sattg). sattg data are based on monthly psmsl tide gauge observations (permanent service for mean sea level, holgate et al. [2013]) and multi-mission satellite altimetry from dgfi-tum. the coastal along-track altimetry sla data feature latest corrections and adjustments, as well as coastal retracking (using the ales retracker (passaro et al., 2014)). the gnss time series are obtained from the nevada geodetic laboratory (ngl) of the university of nevada (blewitt et al. [2016], http://geodesy.unr.edu).this dataset contains information of piecewise trends, uncertainties, as well as discontinuity epochs and sizes in 606 sattg and 381 gnss time series. these parameters are estimated with a bayesian change point detection method (discotimes), as described in ‘bayesian modelling of piecewise trends and discontinuities to improve the estimation of coastal vertical land motion’.

本数据集包含了垂直陆地运动（VLB）时间序列中的分段趋势和间断估计。该时间序列基于两种技术：全球导航卫星系统（GNSS）以及卫星测高与潮汐仪测量值之差（SATTG）。SATTG数据基于每月的永久服务平均海平面（PSMSL）潮汐仪观测数据（Holgate 等，[2013]）以及DGFI-TUM的多任务卫星测高数据。沿海轨道测高数据的SLA特征包括最新的校正和调整，以及沿海重跟踪（使用Ales重跟踪器[Passaro 等，2014]）。GNSS时间序列由内华达大学内华达地理实验室（NGL）获得（Blewitt 等，[2016]，http://geodesy.unr.edu）。本数据集包含了606个SATTG和381个GNSS时间序列中的分段趋势、不确定性、间断时期及其大小等信息。这些参数通过贝叶斯变化点检测方法（Discotimes）进行估计，如《基于贝叶斯模型分段趋势与间断，以改善海岸垂直陆地运动估计》一文所述。