Gravimetric Time Series Recording at the Argentine Antarctic Stations Belgrano II and San Martı´n for the Improvement of Ocean Tide Models

SCHEINERT, M; ZAKRAJSEK, A; EBERLEIN, L; DIETRICH, R; MARENSSI S,; GHIDELLA, M

Geodesy for Planet Earth

Springer-Verlag

Lugar: Berlin; Año: 2012; p. 581 - 589

As a joint project, the Instituto Anta´rtico Argentino (IAA) and TU Dresden (TUD)carried out gravimetric time series recordings at the Argentine Antarctic stationsBelgrano II and San Martı´n. At both stations gravimetric data were recorded forabout 1 year, using LaCoste&Romberg gravity meters. At Belgrano II theobservations were carried out from February to November 2007, and at SanMartı´n from February 2008 to January 2009. The set-up of the gravimetricstations and the instrumentation utilized are shown. We discuss and comparethe data gained at the two stations as well as the analyses in order to solve for thetidal constituents. Generally, tidal gravimetry has the potential to provide independentdata to validate and to improve ocean tide models at the Antarctic seas,especially since in-situ data to be used for the establishment of the models aresparse and satellite altimetry has limitations in high latitudes and over ice-coveredregions. We discuss the feasibility of the obtained data to pursue this goal of animprovement of ocean tide models. Finally, an outlook for further investigationsis given.