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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Martinez-Benjamin, J.J. Davila, J.M. Garate, J. Bonnefond, P. Garcia, M.M. Castellon, M. Talaya, J. Velasco, G.R. Perez, B. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. Geotechnical Eng. & Geosci., Tech. Univ. of Catalonia (UPC), Barcelona (Martinez-Benjamin, J.J.; Garcia, M.M.) || Obs. de la Cote d'Azur, Grasse (Bonnefond, P.) || Univ. Complutense de Madrid, Madrid (Velasco, G.R.) || Cartographic Inst. of Catalonia, Barcelona (Castellon, M.; Talaya, J.) || Real Inst. y Observatorio de la Armada en San Fernando, Cadiz (Davila, J.M.; Garate, J.) || Puertos del Estado, Madrid (Perez, B.) |
| Abstract | Sea level is an environmental variable which is widely recognised as being important in many scientific disciplines as a control parameter for coastal dynamical processes or climate processes in the coupled atmosphere-ocean systems, as well as engineering applications. A major source of sea-level data are the national networks of coastal tide gauges, in Spain belonging to different institutions as the Instituto Geografico Nacional (IGN), Puertos del Estado (PE), Instituto Hidrografico de la Marina (IHM), etc. Three Spanish sites for monitoring sea level are located in Ibiza island, l'Estartit and Barcelona. L'Estartit tide gauge is a classical floating tide gauge set up in l'Estartit harbour (NE Spain) in 1990. Data are taken in graphics registers from which each two hours the mean value is recorded in an electronic support and delivered to the Permanent Service for Mean Sea level (PSMSL). Periodic surveying campaigns along the year are carried out for monitoring possible vertical movement of the geodetic benchmark adjacent to the tide gauge. In the framework of a Spanish Space Project, the instrumentation of sea level measurements has been improved by providing the Barcelona site with a radar tide gauge and with a continuous GPS station nearby. The radar tide gauge is a Datamar 3000C device and a Thales Navigation Internet- Enabled GPS Continuous Geodetic Reference Station (iCGRS) with a choke ring antenna. It is intended that the overall system will constitute a CGPS Station of the ESEAS (European Sea Level) and TIGA (GPS Tide Gauge Benchmark Monitoring) networks. Puertos del Estado (Spanish Harbours) installed the tide gauge station at Ibiza harbour in lanuary 2003. The station belongs to the REDMAR network, composed at this moment by 21 stations distributed along the whole Spanish waters, including also the Canary islands (http://www.puertos.es). The tide gauge also belongs to the ESEAS (European Sea Level) network. Also it has a radar tide gauge at Barcelona harbour.A description of the actual infrastructure at Ibiza, l'Estartit and Barcelona is presented and its applications to sea level monitoring and altimeter calibration in support of the main CGPS at Ibiza harbour. Three Begur Cape experiences on radar altimeter calibration and marine geoid mapping were made on 1999, 2000 and 2002. One campaign was also made in lune 2003 at the Ibiza island area. GPS buoys and GPS catamaran were used. We present a synthesis of the sea level results results obtained from TOPEX/POSEIDON and JASON-1 altimeter calibration campaigns using the direct measurements from GPS buoys and the derived marine geoid. The main objective of the marine campaigns is to check the value of Ibiza Island as a permanent calibration site in the western Mediterranean Sea, to complement the Corsica site in the network of altimeter calibration sites.Now there is preparation for a new Ibiza/Cape of Begur altimeter calibration campaign after launch of JASON-2 at the Vanderbergh site scheduled on lune 20, 2008. |
| File Size | 820212 |
| File Format | |
| ISBN | 9781424428076 |
| DOI | 10.1109/IGARSS.2008.4779413 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-07-07 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Monitoring Sea level Tides Global Positioning System Calibration Sea measurements Radar antennas Control systems Graphics Space stations geoid altimeter calibration GPS buoys Tidegauges |
| Content Type | Text |
| Resource Type | Article |
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