Results 31 to 40 of about 17,244 (283)

Identification, prediction and mitigation of sinkhole hazards in evaporite karst areas [PDF]

, 2008
Sinkholes usually have a higher probability of occurrence and a greater genetic diversity in evaporite terrains than in carbonate karst areas. This is because evaporites have a higher solubility, and commonly a lower mechanical strength.
Cooper, Anthony, Gutiérrez, F, Johnson, Kenneth   +2 more
core   +1 more source

Estimating soil degradation in montane grasslands of North-eastern Italian Alps (Italy) [PDF]

, 2019
Grasslands cover a large portion of the terrestrial ecosystems, and are vital for biodiversity conservation, environmental protection and livestock husbandry.
Masin, Roberta, Penasa, Mauro, Tarolli, Paolo, Torresani, Loris, Wu, Jianshuang   +4 more
core   +2 more sources

Geomorphic time series reveals the constructive and destructive history of Havre caldera volcano, Kermadec arc

Frontiers in Earth Science
Monitoring active seafloor processes requires repeated, comparable surveys to enable change detection. The change detection of the deep ocean floor, however, is rare due to a paucity of repeat data at an appropriate resolution.
E. Spain, R. J. Carey, J. M. Whittaker, V. L. Lucieer, J. M. Fox, J. M. Fox, J. M. Fox, S. J. Watson, F. Caratori Tontini   +8 more
doaj   +1 more source

Using Lidar Data to Analyse Sinkhole Characteristics Relevant for Understory Vegetation under Forest Cover\u2014Case Study of a High Karst Area in the Dinaric Mountains [PDF]

, 2015
In this article, we investigate the potential for detection and characterization of sinkholes under dense forest cover by using airborne laser scanning data.
Igor, Dakskobler, Irena, Bertoncelj, Lado, Kutnar, Milan, Kobal, Pirotti, Francesco   +4 more
core   +4 more sources

Mass wasting triggered by seasonal CO₂ sublimation under Martian atmospheric conditions: Laboratory experiments [PDF]

, 2016
Sublimation is a recognized process by which planetary landscapes can be modified. However, interpretation of whether sublimation is involved in downslope movements on Mars and other bodies is restricted by a lack of empirical data to constrain this ...
Adam Barnes, Bart, Brusnikin, Cedillo-Flores, Conway, Conway, DiBiase, Diniega, Diniega, Dundas, Dundas, Gardin, Hansen, Harrison, Hess, Hugenholtz, John C. Dixon, Kieffer, Kreslavsky, Krohn, Lague, Landis, Lanza, Malin, Malin, Mangold, Manish R. Patel, Matthew E. Sylvest, McEwen, McEwen, Pasquon, Pilorget, Piqueux, Reiss, Reiss, Schorghofer, Scully, Sullivan, Sullivan, Susan J. Conway, Vincendon   +40 more
core   +3 more sources

Comment on “Assessing gully erosion and rehabilitation using multi temporal LiDAR DEMs: Case study from the Great Barrier Reef catchments, Australia” by Khan et al., 2023

International Soil and Water Conservation Research
Geomorphic change detection (GCD) using high resolution topographic data can provide important insights into geomorphological systems. However, considerations must first be given to the mechanisms and dynamics producing landscape change when considering ...
James S. Daley, Andrew P. Brooks, John R. Spencer   +2 more
doaj   +1 more source

Tracking the Evolution of Riverbed Morphology on the Basis of UAV Photogrammetry

Remote Sensing, 2021
Unmanned aerial vehicle (UAV) photogrammetry has recently become a widespread technique to investigate and monitor the evolution of different types of natural processes.
Teresa Gracchi, Guglielmo Rossi, Carlo Tacconi Stefanelli, Luca Tanteri, Rolando Pozzani, Sandro Moretti   +5 more
doaj   +1 more source

Geomorphic Change Detection Using Cost-Effective Structure-from-Motion Photogrammetry: Evaluation of Direct Georeferencing from Consumer-Grade UAS at Orewa Beach (New Zealand) [PDF]

Photogrammetric Engineering & Remote Sensing, 2020
Unmanned aerial systems (UAS) and structure-from-motion photogrammetry are transforming the way we produce topo- graphic data, with applications covering many disciplines in the geosciences, including coastal studies. To overcome limitations of ground control points (GCPs), we evaluate direct georeferencing (DG) of consumer UAS imagery for the cost ...
Bertin, Stéphane, Levy, Benjamin, Gee, Trevor, Delmas, Patrice   +3 more
openaire   +3 more sources

Assessing gully erosion and rehabilitation using multi temporal LiDAR DEMs: Case study from the Great Barrier Reef catchments, Australia

International Soil and Water Conservation Research
Millions of dollars are being spent on gully rehabilitation to help reduce excess fine sediment delivery to the Great Barrier Reef (GBR). There is an urgent need for (i) prioritisation of active gullies for rehabilitation and (ii) the development of ...
Sana Khan, Rebecca Bartley, Anne Kinsey-Henderson, Aaron Hawdon   +3 more
doaj   +1 more source

Evaluating the potential of post-processing kinematic (PPK) georeferencing for UAV-based structure- from-motion (SfM) photogrammetry and surface change detection [PDF]

Earth Surface Dynamics, 2019
Images captured by unmanned aerial vehicles (UAVs) and processed by structure-from-motion (SfM) photogrammetry are increasingly used in geomorphology to obtain high-resolution topography data. Conventional georeferencing using ground control points (GCPs)
H. Zhang, E. Aldana-Jague, F. Clapuyt, F. Wilken, F. Wilken, V. Vanacker, K. Van Oost, K. Van Oost   +7 more
doaj   +1 more source