JIANG Tao,ZHU Zhaorong,DANG Yamin,et al.Dynamic Maintenance of Regional Height Reference Frame Based on GNSS Reference Stations and Surface Mass Loading Data[J].Geomatics and Information Science of Wuhan University,2026,51(4):657-667.
JIANG Tao,ZHU Zhaorong,DANG Yamin,et al.Dynamic Maintenance of Regional Height Reference Frame Based on GNSS Reference Stations and Surface Mass Loading Data[J].Geomatics and Information Science of Wuhan University,2026,51(4):657-667.DOI:10.13203/j.whugis20240070
Dynamic Maintenance of Regional Height Reference Frame Based on GNSS Reference Stations and Surface Mass Loading Data
Regional height reference frame is usually maintained by geodetic leveling network. However
leveling observation is characterized by heavy workload
high cost and low efficiency
which makes the height reference frame quite difficult to maintain
especially in the area of land subsidence. We present a method to dynamically maintain the regional height reference frame based on the combination of GNSS (global navigation satellite system) reference station and surface mass loading data aiming to reduce the workload and cost and improve the timeliness.
Methods
2
In this method
GNSS reference stations are selected as the core nodes of the regional height reference frame
GNSS observations and surface mass loading data (land water storage
sea level height and atmospheric pressure) are used to determine the normal height changes and then update the normal heights at these core stations. The normal height change is composed of change in geodetic height and height anomaly. The GNSS reference stations are taken as the core nodes of height control network
geodetic height changes of these stations are obtained by GNSS coordinate time series analysis using least squares method. Height anomaly changes at these stations are computed using the remove-restore method and local Green's function integration based on surface mass loading data.
Results
2
The method is validated using GNSS observations over 8 years at 5 reference stations
surface mass loading data and multi-session geodetic leveling data in the subsidence area of Beijing. The numerical results demonstrate that the accuracy of the normal height changes determined from the combination of GNSS data and surface mass loading data is better than 11 mm
with most stations achieving accuracy better than 5 mm. The maximum extrapolation error for one month of normal height changes is 13 mm.
Conclusions
2
By applying the height anomaly change corrections that derived from the surface mass loading data using the remove-compute-restore technique and the Green's function integral method
the accuracy of normal height changes can be significantly improved. By selecting the GNSS reference stations with long-term continuous observations and good data quality as the core stations
the dynamic maintenance of regional height reference frame can be realized.
LI Jiancheng . Study and Progress in Theories and Crucial Techniques of Modern Height Measurement in China [J]. Geomatics and Information Science of Wuhan University , 2007 , 32 ( 11 ): 980 - 987 .
YANG Hongshan , NIE Jianliang . Analysis of Vertical Deformation in Shaanxi Area, China [J]. Geomatics and Information Science of Wuhan University , 2022 , 47 ( 11 ): 1854 - 1859 .
SUN Fuping , JIA Yanfeng , ZHU Xinhui , et al . Advances in Dynamic Maintenance Technology of mm-Level Terrestrial Reference Frame [J]. Geomatics and Information Science of Wuhan University , 2022 , 47 ( 10 ): 1688 - 1700 .
PENNA N T , KING M A , STEWART M P . GPS Height Time Series: Short-Period Origins of Spurious Long-Period Signals [J]. Journal of Geophysical Research: Solid Earth , 2007 , 112 ( B2 ): 2005 JB004047.
YUAN Linguo , DING Xiaoli , CHEN Wu , et al . Characteristics of Daily Position Time Series from the Hong Kong GPS Fiducial Network [J]. Chinese Journal of Geophysics , 2008 , 51 ( 5 ): 1372 - 1384 .
KHODABANDEH A , AMIRI-SIMKOOEI A R , SHARIFI M A . GPS Position Time-Series Analysis Based on Asymptotic Normality of M-Estimation [J]. Journal of Geodesy , 2012 , 86 ( 1 ): 15 - 33 .
SHEN Y Z , LI W W , XU G C , et al . Spatiotemporal Filtering of Regional GNSS Network's Position Time Series with Missing Data Using Principle Component Analysis [J]. Journal of Geodesy , 2014 , 88 ( 1 ): 1 - 12 .
DIDOVA O , GUNTER B , RIVA R , et al . An Approach for Estimating Time-Variable Rates from Geodetic Time Series [J]. Journal of Geodesy , 2016 , 90 ( 11 ): 1207 - 1221 .
JIANG Weiping , WANG Kaihua , LI Zhao , et al . Prospect and Theory of GNSS Coordinate Time Series Analysis [J]. Geomatics and Information Science of Wuhan University , 2018 , 43 ( 12 ): 2112 - 2123 .
KLOS A , BOS M S , BOGUSZ J . Detecting Time-Varying Seasonal Signal in GPS Position Time Series with Different Noise Levels [J]. GPS Solutions , 2017 , 22 ( 1 ): 21 .
JIN Bowen , WANG Hui , ZHANG Jianli , et al . Sea Level Change and Vertical Land Motion Along Ny-Alesund Coast in Arctic [J]. Geomatics and Information Science of Wuhan University , 2021 , 46 ( 4 ): 503 - 509 .
MA Jun , CAO Chengdu , JIANG Weiping , et al . Elimination of Colored Noise in GNSS Station Coordinate Time Series by Using Wavelet Packet Coefficient Information Entropy [J]. Geomatics and Information Science of Wuhan University , 2021 , 46 ( 9 ): 1309 - 1317 .
LI Jiancheng , LI Xianpao , ZHONG Bo . Review of Inverting GNSS Surface Deformations for Regional Terrestrial Water Storage Changes [J]. Geomatics and Information Science of Wuhan University , 2023 , 48 ( 11 ): 1724 - 1735 .
JACOB T , WAHR J , GROSS R , et al . Estimating Geoid Height Change in North America: Past, Present and Future [J]. Journal of Geodesy , 2012 , 86 ( 5 ): 337 - 358 .
RANGELOVA E , SIDERIS M G . Contributions of Terrestrial and GRACE Data to the Study of the Secular Geoid Changes in North America [J]. Journal of Geodynamics , 2008 , 46 ( 3-5 ): 131 - 143 .
VAN DER WAL W , RANGELOVA E , SIDERIS M G , et al . Secular Geoid Rate from GRACE for Vertical Datum Modernization [C]// IAG Commission 2: Gravity Field , Chania, Crete, Greece , 2008 .
RANGELOVA E , VAN DER WAL W , SIDERIS M G . How Significant Is the Dynamic Component of the North American Vertical Datum? [J]. Journal of Geodetic Science , 2012 , 2 ( 4 ): 281 - 289 .
KRYNSKI J , KLOCH-GLOWKA G , SZELACHOWSKA M . Analysis of Time Variations of the Gravity Field over Europe Obtained from GRACE Data in Terms of Geoid Height and Mass Variation [C]// IAG General Assembly , Melbourne,Australia , 2011 .
GODAH W , SZELACHOWSKA M , KRYNSKI J . On the Analysis of Temporal Geoid Height Variations Obtained from GRACE-Based GGMS over the Area of Poland [J]. Acta Geophysica , 2017 , 65 ( 4 ): 713 - 725 .
FARRELL W E . Deformation of the Earth by Surface Loads [J]. Reviews of Geophysics , 1972 , 10 ( 3 ): 761 - 797 .
VAN DAM T M , WAHR J , CHAO Y , et al . Predictions of Crustal Deformation and of Geoid and Sea-Level Variability Caused by Oceanic and Atmospheric Loading [J]. Geophysical Journal International , 1997 , 129 ( 3 ): 507 - 517 .