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In this paper, gravimetric and altimetric data are used to assess an estimation of the sea surface topography in the Western Mediterranean Sea. This is a complex area from different points of view, due to the presence of several islands, coastal[...]texto impreso
The Canary Archipelago is an active volcanic region located in the African plate, at 100 Km of the northwest coast of Africa. The Complutense University of Madrid, Institute of Astronomy and Geodesy (CSIC-UCM) and University of Jaén, established[...]texto impreso
To detect possible superficial deformations in the volcanic Caldera of Teide area (Canary Islands), we have set up a network composed by 17 points which we shall observe successively. In this paper, we present the analysis and reduction of data [...]texto impreso
Vieira, Ricardo ; Sevilla de Lerma, Miguel Jesús ; Camacho, A.G. ; Toro y Llaca, Carmen de ; Martín, M. D. | Instituto de Astronomía y Geodesia (IAG-CSIC-UCM) | 1986The survey of potentially active zones in the earth crust done by geodetic methods in one of the most efective techniques for these researches, and it constitutes an essential complement to the geologic and geophysic information. The Caldera del[...]texto impreso
We present the previous work done in order to establish a geodetic control network at the Caldera of Teide (Canary Islands) for the purpose of detecting crustal movements in volcanic areas, as well as a procedure for solving the configuration pr[...]texto impreso
The least-squares collocation method has been used for the computation of a geoid solution in central Spain, combining a geopotential model complete to degree and order 360, gravity anomalies and topographic information. The area has been divide[...]texto impreso
In this work a geoid model is presented over the Western Mediterranean area. It has been computed using marine and terrestrial gravimetric data. Differences between results including several kinds of data are also studied. Altimetric data from a[...]texto impreso
In order to determine with reliability criteria ground deformations, an experimental geodetic network has been established in a volcanic area. A methodology of hypothesis testing to compare successive observations has been set up, and computer p[...]texto impreso
In order to determine with reliability criteria ground deformations, an experimental geodetic network has been established in a volcanic area. A methodology of hypothesis testing to compare successive observations has been set up, and computer p[...]texto impreso
A high-resolution gravimetric geoid model in the Strait of Gibraltar is presented. The computations are based in a data set consisting of 104890 free-air gravity anomalies covering the area (33texto impreso
Accurate global positioning system (GPS) vector determination is now one of the major applications in modem geodesy. Most of the errors are modeled either to smooth atmospheric effects or to remove biases, such as clock offsets. The network desi[...]texto impreso
A programme for marine gravity data validation and adjustment is presented-VALDAMA. The aim of the programme is to provide a complete user-friendly system for marine gravity data validation and adjustment that enables the user to define all inte[...]texto impreso
Sevilla de Lerma, Miguel Jesús ; Brovelli, M. A. ; Sanso, F. ; Arabelos, D. ; Spatalas, S. D. ; Tziavos, I. N. ; Rodríguez Caderot, Gracia ; Gil , Alejandro J. ; Vieira, Ricardo ; Toro y Llaca, Carmen de ; Fürst, W. ; Hausleitner, W. ; Höck, E. ; Schuh, W. D. ; Sünkel, H. ; Tscherning, C. C. ; Seierup, M. S. ; Knudsen, Per ; Vermeer, Martin ; Andreu, M. A. ; Simó, C. | Instituto de Astronomía y Geodesia (IAG-CSIC-UCM) | 1992GEOMED is a project for the determination of the geoid and of the Sea Surface Topography in the Mediterranean Sea. The existing set of data available on the Mediterranean in already quite significant and it is going to be improved in these years[...]texto impreso
The Institute of Astronomy and Geodesy is measuring sea level variations in Lanzarote Island by two automated tide gauges of precision since 1993. In order to obtain "real" sea level variations a permanent GPS station has been installed near the[...]texto impreso
Toro y Llaca, Carmen de ; Vieira, Ricardo ; Sevilla de Lerma, Miguel Jesús | Politecnico di Milano . Dipartimento di Ingegneria Idraulica, Ambientale e del Rilevamento | 1993In this paper we describe the modellinng of the M2 and S2 constituents for the Western and Central Mediterranean Sea, based on mareographic observations. The evaluation of the time variations of the sea surface topography is also studied in orde[...]
