Abstract
Vertical land motion is fundamental in understanding sea level behaviour as the ground subsidence and uplift specifically in coastal area can aggravate the impact of sea level rise. Quantifying the vertical movement of land is a key to forecast the necessities of communities, ecosystem thus implementing appropriate monitoring, and prevention measures for geohazards management. Therefore, this paper provides a review of the space-based geodetic methods used to measure the vertical land motion. An overview of vertical land motion and the basic principles of the four techniques encompassing the measurements from Global Navigation Satellite Systems (GNSS), Persistent Scatterer Interferometry Synthetic Aperture Radar (PS InSAR), Gravity Recovery and Climate Experiment (GRACE) and satellite altimetry minus tide gauge data were summarized to perceive the future outlook. This study also emphasizes the effectiveness and restrictions of each space-based geodetic technique and how they complement each other as multi-sensor technique. The findings show that GNSS technique can measure vertical deformation at millimetre level with the aid of other techniques namely GRACE, PS InSAR and satellite altimeter minus tide gauge. Lastly, the future research direction is also discussed in this review paper.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call