Actualización de datos gravimétricos y de nivelación para el grupo de modelo geoidal del Instituto Geográfico Agustín Codazzi (IGAC)

Abstract

Currently, at the international level, the definition and materialization of the IHRS/IHRF (International Heigth Reference System and International Heigth Reference Frame) vertical reference system and frame is being developed, with the purpose of unifying the different local vertical reference systems that exist in the world; for which Colombia through the IGAC, through the subdirection of Geography and Cartography in its internal working group of Geodesy is updating the national Geoidal model GEOCOL 2004. Therefore, the purpose during the internship was to collaborate in this update by organizing, transcribing and classifying different gravimetric and leveling information; thus, supporting the Geoidal model group in its process to define a single vertical reference system. Therefore, the present work is evidence of different activities performed as an intern for the IGAC specifically in the Internal Working Group GIT of Geodesy; for this two processes were taken into account, the first one was the organization of different official documents of the institute in a single digital database in this case was in Excel format, to later classify and analyze the metadata in the GeoNetwork 3.4.0 platform which has a pre-established template. With the above mentioned during this process the adequate transcription of approximately more than 11000 gravimetric and leveling data with their respective metadata was carried out; therefore, once the development of this project is completed, the IGAC, will have an updated database which will serve as a source of backup and consultation, benefiting the geodesy department by facilitating the handling and manipulation of such gravimetric and leveling information and in this way to advance in terms of their proposed projects.