THE RAP NET: A GEODETIC POSITIONING NETWORK FOR ANDALUSIA (SOUTH SPAIN)
Torrecillas1, A. Hermosilla2, M. Redondo2, M
Berrocoso3, R. Paez3, A. Sanchez-Alzola3
1 - Dpto. de Ingenieria Grafica, University of Seville (SPAIN)
2 - Instituto de Cartografia de Andalucia, Junta de Andalucia
3 - Laboratorio de Astronomia, Geodesia y Cartografia, University of Cadiz
In this communication we present a
description of the Andalusian Positioning Network RAP: its objectives, design,
development and its present status. This geodetic network consists of 22
permanent GPS stations whose surveying will provide the required data to obtain
relative positions of any place in Andalusia
after some post-processing techniques and real-time differential corrections.
Thus, geodetic coordinates of high precision and referred to the WGS-84 system
will be provided for anywhere of Andalusia.
The station in the network can broadcast differential correction via internet.
Nine stations can also broadcast the RTK corrections via radio. The network has
been designed in order to cover Andalusia and
to provide real time differential corrections in whole area. RAP network is
referred to EUREF system and is the reference frame in Andalusia for many
scientific and technological applications, such as precise geoid determination,
tropospheric, ionospheric, and climatological studies, among others. It will be
also useful to settle photogrametric points or marks for the georeference of
satellite images, to establish control points for reference networks in civil
engineering or GIS applications.