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Contribution of l’Estartit tide gauge to the altimeter calibrations:Contribution of l’Estartit tide gauge to the altimeter calibrations: Technology upgrades and new instrumentsTechnology upgrades and new instruments
Marina Martinez Garcia1,2, Juan Jose Martinez Benjamin1, Miquel Angel Ortiz Castellon3, Elena Tel4, Maria-Jesús Garcia4, Roman Leckzinsky5
1 Technical University of Catalonia (UPC), Department of Geotechnical Engineering and Geosciences, Spain, [email protected] Starlab Barcelona s.l., Spain, [email protected] Cartographic Institute of Catalonia (ICC), Barcelona, Spain4 Instituto Nacional Oceanográfico (IEO), Spain5 Geónica Earth Sciences, Spain
2007 Ocean Surface Topography Science Team Meeting
Presentation
L’Estartit gauge is a classical floating tide gauge set up in l’Estartit harbour (NE Spain) in 1990.
2007 Ocean Surface Topography Science Team Meeting
Foundation of measurement at l’Estartit
Measurement: Relative Sea Level (geodeic mark at the harbor) by means of a float in a stilling well.
From the physics to the data:1.- The float is about 45cm diameter large diameter to reduce errors in buoyancy
due to friction of the gearing and small changes in the length of float wire. 2.- The wire is coiled round a drum on the end of the gauge and another drum
contains the counter balance wire.3.- The drum is geared to a slotted tape attached to a pen carriage which travels the
chart during the rise and fall of the tide.
2007 Ocean Surface Topography Science Team Meeting
New devices and sensors at l’Estartit
Radar tide gauge Datamar 3000C (Water level microwave sensor WLPULS-62) possible connection of additional hydrological, meteorological or environmental sensors.
Thales Navigation Internet-Enabled GPS Continuous Geodetic Reference Station (iCGRS) System with a choke ring antenna are working in simultaneously to the old
installation.
