Results 1 to 10 of about 8,313,860 (291)

Detection and attribution of hydrological changes in different climatic and geomorphic regions of China

open access: yesFrontiers in Earth Science, 2023
Through large-scale hydrological simulation, understanding the impact of different climatic and geomorphic conditions on hydrological variables is valuable for water and land management. However, the related study is still a challenge due to strong environmental diversity in large scale region. The physically-based, national-scale hydrological model in
Cunwen Niu
exaly   +3 more sources

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

open access: yesRemote 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   +3 more
doaj   +3 more sources

Time-Series Analysis of Microtopographic Evolution and Morphological Changes in Regressive Tidal Creeks via UAV-LiDAR [PDF]

open access: yesSensors
This study conducted a six-month time-series micro-topographic analysis using high-resolution UAV LiDAR technology to precisely characterize the complex terrain changes in regressive tidal creeks within coastal wetlands. To overcome the unique challenges
Juneseok Kim, Hyeyeon Yoon, Ilyoung Hong
doaj   +2 more sources

Landscape-scale geomorphic change detection: Quantifying spatially variable uncertainty and circumventing legacy data issues [PDF]

open access: yesGeomorphology, 2015
Abstract Repeat surveys of high-resolution topographic data enable analysis of geomorphic change through digital elevation model (DEM) differencing. Such analyses are becoming increasingly common. However, techniques for developing robust estimates of spatially variable uncertainty in DEM differencing estimates have been slow to develop and are ...
Keelin Schaffrath   +2 more
exaly   +2 more sources

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

open access: yesLand
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   +5 more
doaj   +2 more sources

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

open access: yesCoasts, 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   +5 more
doaj   +2 more sources

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

open access: yesLand Degradation and Development, 2018
[EN] Soil erosion is a big concern in bare soils from burnt areas and agricultural lands that lack a vegetation cover. In those unprotected soils, intense rain episodes, typical in Mediterranean climate, cause severe soil erosion processes that have been well studied previously using a number of procedures, such as the geomorphic change detection (GCD)
José Luis Lerma   +2 more
exaly   +2 more sources

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

open access: yesJournal 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   +2 more sources

Expecting the expected – learning from the past to provide forward scenarios through geomorphic change detection, monitoring and modeling

open access: yesGeoenvironmental Disasters
This paper tells the story of a landslide, its origins, its activity and the actions undertaken to mitigate the risks that it poses. The Rotolon landslide is a large Deep-seated Gravitational Slope Deformation (DGSD), located in the Eastern Italian Alps,
G. Bossi   +7 more
doaj   +2 more sources

UAS-based geomorphic change detection of incised montane meadow stream channels with low-tech process-based restoration treatments

open access: yesLandscape Ecology
Abstract Context Montane meadows play an important hydrologic role in headwater catchments, but past land use has largely degraded their condition. Low-tech restoration methods, such as beaver dam analogs (BDAs), are increasingly used to support recovery of incised streams by promoting key geomorphic processes ...
Jerry Davis
exaly   +2 more sources

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