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Geodeto, wypłyń na szerokie wody

Witkowski T.

Geodeta : magazyn geoinformacyjny

2012

nr 2

54-55

Precise geodetic and hydrographic measurements in Karst areas

Pribičević B., Medak D., Dapo A.

Reports on Geodesy

2008

z. 1/84

55-59

Recent advances in GPS-technology (GNSS) enable hydrographic surveyors to capture the topography of the bottom and the water surface with even more accuracy. Faculty of Geodesy, University of Zagreb, recently acquired the latest technology for performing the precise hydrographic surveying: Trimble R8 GNSS receiver that is going to be used with already used echo sounding equipment. The GSM signals are used for transmitting corrections from the base station to the rover. Thus, it is possible to use single-frequency DESO 14 for two-frequencies bathymetry through repeating the course of the vessel on exactly the same points with both transducers. It is expected that the new technology shall yield more accurate results and increase measurement speed, because the OTF times should be significantly shortened.