Results 41 to 50 of about 874 (206)

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   +1 more source

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   +1 more source

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   +1 more source

Native Perennial Vegetation Buffer Strips Improve Structural Indicators of Riparian Protection in Mediterranean Agroecosystems

Land Degradation &Development, EarlyView.
ABSTRACT Riparian zones in Mediterranean agroecosystems are highly vulnerable to degradation because cultivation often reaches stream edges and annual vegetation senesces during the late‐summer dry period, leaving soils exposed when the first erosive autumn rains occur.
Marcelo Sternberg, Shir Greenberg, Felicia Orah Rein, Roey Egozi, Ofer Cohen   +4 more
wiley   +1 more source

A novel 3D geomorphic change detection framework for large-scale active dump slope using multi-temporal imagery

Journal of Environmental Engineering and Landscape Management
Slope stability of dumps in the mining industry is a critical issue due to frequent incidents involving loss of life, equipment damage, and operational disruptions.
Amit Kumar Mankar, Radhakanta Koner
doaj   +1 more source

Future Soil Erosion Under Combined CMIP6 Climate Projections and Land Use/Land Cover Change: A RUSLE‐Based Assessment of the Kampe Omi Dam Basin in Nigeria

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major environmental challenge in Nigeria, driven by the combined effects of climate variability and land use/land cover (LULC) changes. Understanding future dynamics is essential for effective soil conservation planning.
Titus Adeyemi Alonge, Amos T. Kabo‐Bah, Lily Lisa Yevugah, Abdul‐Karim Iddrisu   +3 more
wiley   +1 more source

Multiscale Morphology-Based Detection of Shoreline Change Hotspots from Aerial Imagery Under Fluctuating Water Levels

Remote Sensing
Shoreline change detection from remote sensing imagery remains challenging in environments subject to water level fluctuations, as remotely sensed shoreline positions reflect instantaneous hydrodynamic states rather than true geomorphic change.
Wei Wang, Boyuan Lu, Yihan Li, Fujiang Ji   +3 more
doaj   +1 more source

Development and Optimization of an Automated Fixed-Location Time Lapse Photogrammetric Rock Slope Monitoring System

Remote Sensing, 2019
An automated, fixed-location, time lapse camera system was developed as an alternative to monitoring geological processes with lidar or ground-based interferometric synthetic-aperture radar (GB-InSAR).
Ryan Kromer, Gabe Walton, Brian Gray, Matt Lato, Robert Group   +4 more
doaj   +1 more source

Modeled Subsidence of Permafrost Terrain 2025–2050: North‐Central Alaska

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT A large fraction of the Alaska terrain is underlain by regolith that contains excess ice (ice that in volume exceeds the natural pore space). Possible loss of excess ice would lead to ground subsidence, which in turn would disturb and destabilize the ground surface.
Jaakko Putkonen, Hayden Patterson, Robert Chance, Mary Soaper, Anai Caparó Bellido, Aymane Ahajjam, Andrew Wilcox, Sheridan Parker, Timothy Pasch   +8 more
wiley   +1 more source

A Workflow to Estimate Topographic and Volumetric Changes and Errors in Channel Sedimentation after Disturbance

Remote Sensing, 2019
Light Detection and Ranging (LiDAR) methods, such as ground-based Terrestrial Laser Scanning (TLS), have enabled collection of high-resolution point clouds of elevation data to calculate changes in fluvial systems after disturbance, but are often ...
Samira Nourbakhshbeidokhti, Alicia M. Kinoshita, Anne Chin, Joan L. Florsheim   +3 more
doaj   +1 more source