Available presentations & posters > Session 7

Session 7. Vertical movements of the earth surface, sea level and potential fields

Conveners: T. Van Dam, M.-P. Doin, S. Zerbini

We welcome in this session contributions focused on the measurement and modeling of vertical movements and gravity changes in response to past or present-day changes in surface loads. Vertical displacements are now retrieved with a greatly improved accuracy (< mm/yr) that allows to map a wide variety of dynamic phenomena on Earth. Combined with gravity measurements by space (GRACE mission) or on ground, on may hope to decipher surface mass changes (atmospheric, oceanic, hydrological loads) from underground water and deeper Earth dynamical effects.

The surface of the solid earth is also a natural reference for quantifying sea level rise, and can either mitigate or enhance the sea level rise experienced in coastal areas. At regional scales, mass redistribution inside the earth will change the gravity field and induce additional sea level variations.

Contributors to vertical movements and gravity changes are, on a secular scale, the Glacial Isostatic Adjustment (GIA) due to changes in ice cover during the past glacial cycles or during the Little Ice Age, or isostatic readjustments to erosion in mountain belts, and tectonic processes in active areas. They are modulated on the geodetic time scale by changes in atmospheric, oceanic and hydrological loads. They can be used to constrain the earth rheological properties, the deformation at depth on or off faults, but also the continental water storage.

Keynote speaker

Luciana Fenoglio - University of Bonn - Germany
Absolute and relative sea level change


Detailed Oral Program

Tuesday 11th September

1:30PM - 3:30PM:  

Absolute and relative sea level change(invited)

Luciana Fenoglio

Centennial variations of sea level in the northern Mediterranean

Sara Bruni

Bayesian surface reconstruction of geodetic uplift rates: mapping the global fingerprint of GIA

Laurent Husson

Investigating coastal inundation using a Bayesian joint inversion of GPS, Tide gauges, and Satellite Altimetry

Rhys Hawkins

Present-day uplift of the European Alps: mechanisms and relative contributions

Pietro Sternai

Using GPS and absolute gravity observations to separate the effects of present-day and Pleistocene ice-mass changes in South East Greenland

Tonie Van Dam

Hydrological consistency in the Okavango basin: comparison between GRACE solutions, GPS records and hydrological modelling

Anne-Morwenn Pastier


List of Posters

Subduction versus crustal tectonics impact on southern ecuadorian margin: quantification and modelling of marine terraces uplift rates. Towards long term interseismic coupling pattern

Andrea Cisneros, Marianne Saillard, Laurence Audin, Mohamed Chlieh

Landslides characterization in Great Kabylia (Tizi-Ouzou), Algeria

Nacira Bouaziz, Bachir Melcouci

Geocentric Sea-Level Rise on the Estonian Coast Over Last Half Century

Aive Liibusk, Tarmo Kall, Tõnis Oja, Karin Kollo

Investigation of subsidence and vertical displacements in Iran using gravity, GNSS and precise levelling data

Abdoreza Saadat, Jacques Hinderer, Hamideh Cheraghi, Jean-Daniel Bernard, Yahya Djamour, Masoomeh Amighpey, Seyavash Arabi, Hamidreza Nankali, Farokh Tavakoli, Morteza Sedighi, Yaghoub Hatam

Loading-induced ground deformations around the Toktogul Reservoir, Kyrgyzstan, as observed by Envisat ASAR and Sentinel-1 data

Julia Neelmeijer, Tilo Schöne, Robert Dill, Volker Klemann, Mahdi Motagh

Vertical Movement Estimates along the Black Sea Coast from GPS and Satellite Altimetry - Tide Gauge

Nevin Betul Avsar, Gokhan Gurbuz, Senol Hakan Kutoglu


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