RT Journal Article
T1 A gravimetric geoid computation and comparison with GPS results in northern Andalusia (Spain)
A1 Lacy de, María Clara
A1 Rodríguez Caderot, Gracia
A1 Marin, E.
A1 Ruíz, A.
A1 Borque, María Jesús
A1 Gil, A. J.
A1 Biagi, L.
AB Two new GPS surveys have been carried out to check the accuracy of an existing gravimetric geoid in a test area located in northern Andalusia (Spain). The fast collocation method and the remove-restore procedure have been used for the computation of the quasigeoid model. The Spanish height system is based on orthometric heights, so the gravimetrically determined quasigeoid has been transformed to a geoid model and then compared to geoid undulations provided by GPS and levelling at benchmarks belonging to the Spanish first-order levelling network. The discrepancies between the gravimetric solution and GPS/levelling undulations amount to +/-2 cm for one survey and FS cm for another after fitting a plane to the geoid model.
PB Springer
SN 0039-3169
YR 2001
FD 2001
LK https://hdl.handle.net/20.500.14352/57821
UL https://hdl.handle.net/20.500.14352/57821
LA eng
NO Servicio Geografico del Ejeicito
NO Instituto Geogrifico Nacional for the gravimetry data
DS Docta Complutense
RD 6 abr 2025