Results 21 to 30 of about 874 (206)

Creation of a Landslide Susceptibility Map Using Short‐Term Data From the July 2018 Heavy Rainfall in Southern Hiroshima Prefecture

Geological Journal, EarlyView.
This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi, Ting Liu, Toshiro Hata, Rebecca Muenich   +3 more
wiley   +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

A New Hydroclimatic Signature: Negative NAO Dominance Under Weak La Niña Conditions During the 2025–2026 Northwest Africa Floods

International Journal of Climatology, EarlyView.
Conceptual hydroclimatic pathway linking the concurrent negative North Atlantic Oscillation (NAO) phase and weak La Niña conditions to extreme February rainfall and flash flooding in Northwest Africa. ABSTRACT The winter of 2025–2026 in Morocco exhibited a rapid hydroclimatic transition from prolonged drought to widespread flooding, representing an ...
Afshin Amiri, Silvio Jose Gumiere, Hossein Bonakdari   +2 more
wiley   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

An Evaluation of Low‐Cost Terrestrial Lidar Sensors for Assessing Hydrogeomorphic Change

Earth and Space Science
Accurate topographic data acquired at appropriate spatio‐temporal resolution is often the cornerstone of geomorphic research. Recent decades have seen advances in our ability to generate highly accurate topographic data, primarily through the application
M. T. Perks, S. J. Pitman, R. Bainbridge, A. Díaz‐Moreno, S. A. Dunning   +4 more
doaj   +1 more source

Application of unmanned aircraft system (UAS) for monitoring bank erosion along river corridors

Geomatics, Natural Hazards & Risk, 2019
Excessive streambank erosion is a significant source of fine sediments and associated nutrients in many river systems as well as poses risk to infrastructure.
Scott D. Hamshaw, Tayler Engel, Donna M. Rizzo, Jarlath O’Neil-Dunne, Mandar M. Dewoolkar   +4 more
doaj   +1 more source

Simulating and quantifying legacy topographic data uncertainty: an initial step to advancing topographic change analyses

Progress in Earth and Planetary Science, 2017
Rapid technological advances, sustained funding, and a greater recognition of the value of topographic data have helped develop an increasing archive of topographic data sources.
Thad Wasklewicz, Zhen Zhu, Paul Gares
doaj   +1 more source

Inter‐ and Intra‐Rater Reliability of 4D‐CT Versus Bronchoscopy in Diagnosing and Grading Tracheomalacia

The Laryngoscope, EarlyView.
Bronchoscopy and 4D‐CT are used to grade tracheomalacia severity, though reliability across raters and specialties has been unclear. In this multi‐institutional, multidisciplinary survey study, endoscopic assessment showed higher inter‐ and intra‐rater reliability than 4D‐CT, though both modalities demonstrated substantial‐to‐almost‐perfect agreement ...
Hannah F. Case, Shaunak Amin, Xing Wang, Michael Barbour, Michael Bindschadler, Tanya Meyer, Seth Friedman, Alberto Aliseda, John P. Dahl, Randall A. Bly   +9 more
wiley   +1 more source

Evaluation of short-term geomorphic changes along the Tagliamento river using LiDAR and terrestrial laser scanner surveys

Journal of Agricultural Engineering, 2013
In the recent years a change in the predominant morphology of several river environments has taken place, consisting in a reduction of the braided pattern in favor to wandering or straight configurations.
R. Rainato, L. Picco, M. Cavalli, L. Mao, F. Delai, D. Ravazzolo, M.A. Lenzi   +6 more
doaj   +1 more source

Detection of Beach–Dune Geomorphic Changes by Means of Satellite and Unmanned Aerial Vehicle Data: The Case of Altamura Island in the Gulf of California

Coasts, 2023
Although sandy islands in arid environments are vital protection sites for endemic species, they face constant natural and anthropogenic hazards, such as storm surge impacts and the occasional presence of off-road vehicles.
Francisco Flores-de-Santiago, Luis Valderrama-Landeros, Julen Villaseñor-Aguirre, León F. Álvarez-Sánchez, Ranulfo Rodríguez-Sobreyra, Francisco Flores-Verdugo   +5 more
doaj   +1 more source