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Ocean Science An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 2
Ocean Sci., 14, 187–204, 2018
https://doi.org/10.5194/os-14-187-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ocean Sci., 14, 187–204, 2018
https://doi.org/10.5194/os-14-187-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 15 Mar 2018

Research article | 15 Mar 2018

A comparison of methods to estimate vertical land motion trends from GNSS and altimetry at tide gauge stations

Marcel Kleinherenbrink et al.
Data sets

Radar Altimetry Database System (RADS) M. Naeije, E. Schrama, and R. Scharroo https://doi.org/10.1109/IGARSS.2000.861605

Nevada Geodetic Laboratory (NGL) MIDAS GPS trends G. Blewitt, C. Kreemer, W. Hammond, and J. Gazeaux https://doi.org/10.1002/2015JB012552

Permanent Service for Mean Sea Level (PSMSL) S. Holgate, A. Matthews, P. Woodworth, L. Rickards, M. Tamisiea, E. Bradshaw, P. Foden, K. Gordon, S. Jevrejeva, and J. Pugh https://doi.org/10.2112/JCOASTRES-D-12-00175.1

Selection of University of La Rochelle (ULR) GPS and ALT-TG trends G. Wöppelmann and M. Marcos https://doi.org/10.1002/2015RG000502

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Short summary
Tide gauges observe sea level changes, but are also affected by vertical land motion (VLM). Estimation of absolute sea level requires a correction for the local VLM. VLM is either estimated from GNSS observations or indirectly by subtracting tide gauge observations from satellite altimetry observations. Because altimetry and GNSS observations are often not made at the tide gauge location, the estimates vary. In this study we determine the best approach for both methods.
Tide gauges observe sea level changes, but are also affected by vertical land motion (VLM)....
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