VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Challenges related to the determination of altitudes of mountain peaks presented on cartographic sources = Izzivi pri določanju višin gorskih vrhov, kot so navedene v kartografskih virih
    Chwedczuk, Katarzyna
    This study aimed to measure and validate altitudes from existing sources with direct GNSS measurements and airborne lidar data. For this purpose, 12 mountain peaks located in the south part of Polish ... territory were selected. Measurements were performed using a GNSS receiver using the Real-Time Kinematic (RTK) or static techniques enabling altitude measurements with accuracy of 10 cm. GNSS was treated as the primary data source, as the direct !eld measurements can determine the highest point on each peak. "e obtained results were confronted with historical, internet sources, and o#cial altitude data. Moreover, each altitude was determined using lidar data from an airborne lidar dataset of Poland from the ISOK program and provided by the national agency. Signi!cant discrepancies in data were already detected during the analysis of internet materials and traditional maps, up to a few meters. "e di$erences between measured and internet sources in altitude of mountain peak range from 27 cm to 504 cm. "is study has shown the need to re-measure the altitudes of the mountain peaks and determine the highest point correctly.
    Vrsta gradiva - članek, sestavni del
    Leto - 2022
    Jezik - angleški
    COBISS.SI-ID - 106985219