Comparison of morphometric characteristics of dolines delineated from TOPO-Maps and UAV-DEMs
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Dolines are the characteristic landforms in karstic landscapes, and their morphometric characteristics are commonly used for surface karst research. More than 140,000 dolines were identified using 1:25,000 scale topographic maps (TOPO-Maps) in the West and Central Taurus, Turkiye's most important karst terrain. However, the accuracy of these TOPO-Maps in terms of real morphometric characteristics of dolines in the Taurus Mountains is unknown. For this reason, in this study, dolines were automatically delineated from high-resolution digital elevation models (DEMs) produced by unmanned aerial vehicles (UAV-DEMs), and their morphometric characteristics were compared with the results obtained from 1:25,000 scale TOPO-Maps. UAV-DEMs with resolution below meter level provide a more accurate representation of the real Earth surface and thus landforms can be examined in more detail. In this study, six locations covering a total of 8.03 km(2) were modeled with UAV. According to the results, the accuracy of the TOPO-Maps in terms of doline numbers was 0.24 (24%)-0.98 (98%), and this rate increased as the average area of the dolines increased. Doline density was always high with UAV-DEM data, and doline density had an average 99% increase when compared with TOPO-Map data. Due to UAV-DEMs providing the opportunity to calculate more morphometric characteristics, in this study, we provide information for the first time about the depth, slope, and volume characteristics of dolines in the Taurus Mountains. The mean depth, slope, and volume of solution dolines were 31 m, 45 degrees, and 207,931 m(3) in the Taurus Mountains, respectively.
Açıklama
Anahtar Kelimeler
Karst, Doline, TOPO-maps, UAV-DEMs, Morphometry, Taurus Mountains, Turkiye
Kaynak
Environmental Earth Sciences
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
82
Sayı
7
