As part of the graduation thesis, we determined the height of the Bohinj lakes surface. For that, we had to established a levelling network. The network was attached to the benchmark stabilised in the bridge over the river Jezernica. The method to determine the height of the new benchmarks was geometrical levelling. After the measurement of the geometrical levelling, came the height adjustment by the method of least squares. The height of the Bohinj lakes surface was measured with the trigonometric height measuring and with the help of a “tide gauge”. At the end, the results were compared to the tide staff at the church of Sveti Duh.
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