LeHavreV1, Main, Exploration, bibRecord, 000227

InSAR monitoring of ground motions impacts for in-situ sea level measurement: The example of Dakar (Senegal)

Identifieur interne : 000227 ( Main/Exploration ); précédent : 000226; suivant : 000228

InSAR monitoring of ground motions impacts for in-situ sea level measurement: The example of Dakar (Senegal)

Auteurs : Gonéri Le Cozannet [France] ; Daniel Raucoules [France] ; Guy Woppelmann [France] ; Marcello De Michele [France] ; Adrien Poupardin [France]

Source :

RBID : Hal:hal-01082293

English descriptors

mix :
- Cities and towns, Dakar, Global Positioning System, InSAR, Sea level, Sea level rise, Sea measurements, Tide Gauge, Tides, ground motions.

Abstract

Tide gauges are a unique source of information on past sea level changes over the 20th century. However, these instruments can be affected by local ground motions, which are often poorly known. Here, InSAR can provide valuable information to understand the ground deformation context at city scale. In this study, we evaluate ground motion velocities from 13 interferograms of 10 Envisat images. Within the precision limitations of the technique, our results suggest that the city of Dakar displays relatively uniform ground motions, except in the harbor. Further investigation is necessary to examine the particular case of a recent tide gauge, which could be affected by a moderate subsidence with respect to the permanent GPS station of Dakar.

Url:

https://hal-brgm.archives-ouvertes.fr/hal-01082293

DOI: 10.1109/IGARSS.2014.6946588

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Tide gauges are a unique source of information on past sea level changes over the 20th century. However, these instruments can be affected by local ground motions, which are often poorly known. Here, InSAR can provide valuable information to understand the ground deformation context at city scale. In this study, we evaluate ground motion velocities from 13 interferograms of 10 Envisat images. Within the precision limitations of the technique, our results suggest that the city of Dakar displays relatively uniform ground motions, except in the harbor. Further investigation is necessary to examine the particular case of a recent tide gauge, which could be affected by a moderate subsidence with respect to the permanent GPS station of Dakar.</div>
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InSAR monitoring of ground motions impacts for in-situ sea level measurement: The example of Dakar (Senegal)

InSAR monitoring of ground motions impacts for in-situ sea level measurement: The example of Dakar (Senegal)

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri