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Título: | Updating gravimetric tide parameters and ocean tide loading corrections at the observing sites Cueva de los Verdes and Timanfaya of the Geodynamics Laboratory of Lanzarote |
Autor: | Arnoso, José CSIC ORCID ; Benavent, Maite; González Montesinos, Fuensanta | Palabras clave: | Lanzarote Geodinámica Mareas Cueva de los Verdes Laboratorios |
Fecha de publicación: | 2011 | Editor: | Lanzarote. Cabildo Insular | Citación: | Arnoso, J., Benavent, M., Montesinos, F.G. (2011). [en línea]. Updating gravimetric tide parameters and ocean tide loading corrections at the observing sites Cueva de los Verdes and Timanfaya of LGL. En: 25 años de actividad científica en el Laboratorio de Geodinámica de Lanzarote. Casa de los Volcanes - Cabildo de Lanzarote. p. 1-20. | Resumen: | We have compared the observed gravity tidal loading in two sites, Cueva de los Verdes and National Park of Timanfaya, of the Geodynamics Laboratory of Lanzarote (Canary Islands) to the theoretically computed ocean loading effect. The study is focused con the main eight tidal constituents (Q1, O1, P1, K1, N2, M2, S2 and K2)and improvements have been achieved from two sides: On the one hand the series of gravity measurements, carried out with LaCoste & Romberg G gravimeters, have been re-analyzed for this work using the capabilities of VAV program to attain higher precision in the estimation of the precision of the tidal parameters at both sides. On the other hand, we have increased the accuracy of the computed oceanic loads using six recent global ocean tide models (TPXO7.2, EOT11a, HAMTIDE, FES2004, GOT4.7 and AG2006) supplemented with the regional model CIAM2 for the surrounding waters of the Canaries. In general, the ocean tide loading calculations agree within 0.1 uGal and the observed loading keeps in a range of 0.2 and 0.3 uGal. Final residues reflect the uncertainty in the calibration of the gravimeters at both sides (at level of 0.4%). Hight values of the residues found at Timanfaya sites confirm the response of a porous, local, upper crust under the influence of tidal strain. | Descripción: | Estre trabajo se enmarca dentro de: 25 años de actividad científica en el Laboratorio de Geodinámica de Lanzarote International Scientific Meeting. Lanzarote, 21-23 de Abril 2010. | Versión del editor: | http://www.iag-lgl.csic.es/CD/archivos/Jose%20Arnoso_-_LGL.pdf | URI: | http://hdl.handle.net/10261/62840 |
Aparece en las colecciones: | (IGEO) Libros y partes de libros |
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Jose Arnoso_-_LGL.pdf | 1,07 MB | Adobe PDF | Visualizar/Abrir |
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