Searching for the void : improving cave detection accuracy by multi-faceted geophysical survey reconciled with LiDAR DTM
PBN-AR
Instytucja
Wydział Nauk o Ziemi i Kształtowania Środowiska (Uniwersytet Wrocławski)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
ZEITSCHRIFT FUR GEOMORPHOLOGIE (15pkt w roku publikacji)
ISSN
0372-8854
EISSN
Wydawca
GEBRUDER BORNTRAEGER
DOI
URL
Rok publikacji
2017
Numer zeszytu
2
Strony od-do
45-59
Numer tomu
61
Identyfikator DOI
Liczba arkuszy
Autorzy
Streszczenia
Język
angielski
Treść
This paper presents results of last studies in karst area of the Kleśnica Valley in the Sudetes (SW Poland), known for spectacular discoveries of new cave passages in 2012 – 2014. We used digital terrain model based on airborne laser scanning data and geophysical measurements (ground penetrating radar GPR and 2-dimensional electrical resistivity tomography ERT), combined with detailed underground mapping, representing a complex multi-faceted approach for resolving karst voids distribution issue. The combination of multisource data allowed us to reconcile the structural control on marbles cavities extent and point out the relationship between cave conduits pattern and topography. LiDAR data allowed analysis of the geomorphological features of slopes and detection of lithological boundaries. ERT inversion models supported a precise imaging of underground conduits levels in the Niedźwiedzia Cave, moreover indicating some potential locations for the new passages ca. 100 –120 m above the Kleśnica Valley floor and farther to the south. Likewise, the GPR method resulted in a satisfactory accuracy of cave chambers detection in the depth range of 15 – 20 metres. Presented methodology resulted in karst voids geophysical imaging, explicitly improving our understanding of the Niedźwiedzia Cave passages distribution, both known ones as well as not recognized nor explored by speleologists hitherto.
Inne
System-identifier
PX-5a201228d5de84c2d6ed07cb
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