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Título

Estimation of vertical land movement rates along the coasts of the Gulf of Mexico over the past decades

AutorLetetrel, Camille; Karpytchev, Mikhail; Bouin, Marie-Noëlle; Marcos, Marta ; Santamaría-Gómez, Álvaro; Wöppelmann, Guy
Palabras claveSatellite altimetry
GPS
Vertical land motion
Tide gauge
Gulf of Mexico
Fecha de publicación1-dic-2015
EditorElsevier
CitaciónContinental Shelf Research 111(Part A): 42-51 (2015)
ResumenWe estimated the vertical land movement rates at tide gauge stations along the Gulf of Mexico (GOM) coasts. A novel approach suggested by Kuo et al. (2004, 2008) for combining satellite altimetry and tide gauge data was applied. The obtained vertical land motion rates were compared with the GPS vertical velocities measured at Galveston, Grand Isle, Dauphin Island, Pensacola and Key West stations. The estimated vertical rates range from slow subsidence in the South of Florida and Veracruz to high subsidence rates in Texas and Louisiana where some of the tide gauges subside at the rate of up to 7 mm/yr. A small but noticeable uplift in the NE of the Gulf was detected at Cedar Key and Apalachicola and a very low subsidence at Pensacola tide gauge. We suppose there are some local tectonic processes which contribute significantly to the land movement at these stations. Comparison with the post-glacial rebound model ICE5G-VM2 predictions shows that the drivers of the subsidence on the GOM shelf are of local nature. The resulted absolute sea level rise along the GOM coast was estimated to be about 2.0±0.4 mm/yr.
Versión del editorhttp://dx.doi.org/10.1016/j.csr.2015.10.018
URIhttp://hdl.handle.net/10261/132283
DOI10.1016/j.csr.2015.10.018
Identificadoresdoi: 10.1016/j.csr.2015.10.018
issn: 1873-6955
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