Results 1 to 10 of about 518 (86)

Characterization and Geomorphic Change Detection of Landslides Using UAV Multi-Temporal Imagery in the Himalayas, Pakistan

Land
Multi-temporal unmanned aerial vehicle (UAV) imagery and topographic data were used to characterize and evaluate the geomorphic changes of two active landslides (Nara and Nokot) in Pakistan.
Naseem Ahmad, Muhammad Shafique, Mian Luqman Hussain, Fakhrul Islam, Aqil Tariq, Walid Soufan   +5 more
doaj   +4 more sources

Dune belt restoration effectiveness assessed by UAV topographic surveys (northern Adriatic coast, Italy) [PDF]

Biogeosciences, 2023
Unoccupied aerial vehicle (UAV) monitoring surveys are used to assess a dune restoration project in the protected natural area of the Bevano River mouth on the northern Adriatic coast (Ravenna, Italy).
R. A. Faelga, L. Cantelli, S. Silvestri, B. M. S. Giambastiani   +3 more
doaj   +2 more sources

Precision Evaluation and Fusion of Topographic Data Based on UAVs and TLS Surveys of a Loess Landslide

Frontiers in Earth Science, 2021
In recent years, low-cost unmanned aerial vehicles (UAVs) photogrammetry and terrestrial laser scanner (TLS) techniques have become very important non-contact measurement methods for obtaining topographic data about landslides.
Zhonglei Mao, Zhonglei Mao, Sheng Hu, Sheng Hu, Sheng Hu, Ninglian Wang, Ninglian Wang, Ninglian Wang, Yongqing Long, Yongqing Long   +9 more
doaj   +2 more sources

Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery [PDF]

Revista Brasileira de Ciência do Solo, 2019
The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate
Paulo Siqueira Junior, Marx Leandro Naves Silva, Bernardo Moreira Cândido, Fabio Arnaldo Pomar Avalos, Pedro Velloso Gomes Batista, Nilton Curi, Wellington de Lima, John Norman Quinton   +7 more
doaj   +2 more sources

Multi-temporal UAV based repeat monitoring of rivers sensitive to flood

Journal of Maps, 2021
Multi-temporal repeat monitoring of flood-vulnerable rivers is crucial due to rapid alteration of morphological properties of in-channel landforms. Besides, the characteristics of the river crossing bridges may deteriorate due to flood induced scouring ...
Orkan Özcan, Okan Özcan
doaj   +2 more sources

Assessing Geomorphic Change in Restored Coastal Dune Ecosystems Using a Multi-Platform Aerial Approach

Remote Sensing, 2021
Uncrewed aerial systems (UAS) provide an effective method to examine geomorphic and vegetation change in restored coastal dune ecosystems. Coupling structure-from-motion (SfM) photogrammetry with RGB orthomosaic imagery allows researchers to characterize
Zach Hilgendorf, M. Colin Marvin, Craig M. Turner, Ian J. Walker   +3 more
doaj   +3 more sources

Mapping of coastal landforms and volumetric change analysis in the south west coast of Kanyakumari, South India using remote sensing and GIS techniques

Egyptian Journal of Remote Sensing and Space Sciences, 2017
The coastal landforms along the south west coast of Kanyakumari have undergone remarkable change in terms of shape and disposition due to both natural and anthropogenic interference.
S. Kaliraj, N. Chandrasekar, K.K. Ramachandran   +2 more
doaj   +2 more sources

The effects of topographic surveying technique and data resolution on the detection and interpretation of geomorphic change

Geomorphology, 2019
Change detection of high resolution topographic data is commonly used in river valleys to quantify reach- and site-scale sediment budgets by estimating the erosion/deposition volume, and to interpret the geomorphic processes driving erosion and ...
Alan Kasprak, Nathaniel Bransky, Joel B Sankey   +2 more
exaly   +2 more sources

Quantifying small‐magnitude soil erosion: Geomorphic change detection at plot scale

Land Degradation and Development, 2018
Matilde Balaguer-Puig, Angel Marqués-Mateu, JOSÉ Luis Lerma   +2 more
exaly   +2 more sources

Optimising sub-metre resolution 3D geomorphic change detection over large areas using multitemporal airborne laser scanning with Sentinel-1 InSAR and Sentinel-2 optical observations

Remote Sensing of Environment
Simon J Walker, Scott N Wilkinson, Sana Khan   +2 more
exaly   +2 more sources