After the floods that hit Slovenia in September 2010,\ud
the Institute for Water of the Republic of Slovenia\ud
measured the heights of geodetic points (with the\ud
GNSS levelling method) used to determine the\ud
height of flood water on the Ljubljana moor and\ud
Ljubljana. The heights of these points were controlled\ud
by trigonometric levelling with connections to the\ud
benchmarks of the city levelling network of Ljubljana.\ud
An analysis of the accuracy of determining the heights\ud
of the points and the differences between the heights\ud
of the points, which were determined by GNSS and\ud
trigonometric levelling, are presente
