Cave information system
Tarsoly, Peter
Caves are such underground objects, which are isolated from the outer world since the beginning of the prehistoric ages. The dust-free and partly weather independent environment allowed the formation of a very special flora and fauna. The geologist can look into the secrets of the Earth building the history of the past. From other point of view, caves are important for tourists; many people wonder the world of the eternal night. The changes on the Earth surface and the water pollution have effect on the sensitive balance of underground world. That is, why it is so important to make complex modelling systems on the caves, which show the spatial processes of relationships. The first step was to find the optimal measuring method to determine the coordinates of the cave entrances. The optimal solution of this problem is the GPS. How to use the GPS and process the raw data obtaining coordinates with sufficient accuracy. These are the primary topics of my study. The second thing is how to survey the underground world. Primarily we use traditional instruments; tape, compass and sometimes optical theodolite. Nowadays, total stations and laser scanners are the most up-to-date instruments to carry out precise and large number of measurements. These technologies are discussed in the second chapter.
Event: XXIII International FIG Congress : Shaping the change
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