Results 1 to 10 of about 9,086 (270)

Estimating the Evolution of a Post-Little Ice Age Deglaciated Alpine Valley through the DEM of Difference (DoD)

Remote Sensing, 2023
Since the end of the Little Ice Age (LIA, ~1830), the accelerated glaciers’ shrinkage along mid-latitude high mountain areas promoted a quick readjustment of geomorphological processes with the onset of the paraglacial dynamic, making proglacial areas ...
Roberto Sergio Azzoni, Manuela Pelfini, Andrea Zerboni   +2 more
doaj   +4 more sources

Quantifying Debris Flood Deposits in an Alaskan Fjord Using Multitemporal Digital Elevation Models [PDF]

Sensors, 2021
Six DEMs over a 10-year period were used to estimate flood-related sedimentation in the Japanese Creek drainage located in Seward, Alaska. We analyze two existing LiDAR DEMs and one GNSS-derived DEM along with three additional DEMs that we generated ...
Matthew Balazs, Anupma Prakash, Gabriel Wolken   +2 more
doaj   +3 more sources

Modelling the dynamics of a large rock landslide in the Dolomites (eastern Italian Alps) using multi-temporal DEMs [PDF]

PeerJ, 2018
Latest advances in topographic data acquisition techniques have greatly enhanced the possibility to analyse landscapes in order to understand the processes that shaped them.
Ricarda Gatter, Marco Cavalli, Stefano Crema, Giulia Bossi   +3 more
doaj   +4 more sources

Surface Elevation Changes Estimation Underneath Mangrove Canopy Using SNERL Filtering Algorithm and DoD Technique on UAV-Derived DSM Data

ISPRS International Journal of Geo-Information, 2021
Estimating surface elevation changes in mangrove forests requires a technique to filter the mangrove canopy and quantify the changes underneath. Hence, this study estimates surface elevation changes underneath the mangrove canopy through vegetation ...
Norhafizi Mohamad, Anuar Ahmad, Mohd Faisal Abdul Khanan, Ami Hassan Md Din   +3 more
doaj   +2 more sources

Investigating Geomorphic Change Using a Structure from Motion Elevation Model Created from Historical Aerial Imagery: A Case Study in Northern Lake Michigan, USA

ISPRS International Journal of Geo-Information, 2023
South Manitou Island, part of Sleeping Bear Dunes National Lakeshore in northern Lake Michigan, is a post-glacial lacustrine landscape with substantial geomorphic changes including landslides, shoreline and bluff retreat, and sand dune movement.
Jessica D. DeWitt, Francis X. Ashland
doaj   +2 more sources

Use of High-Resolution Multi-Temporal DEM Data for Landslide Detection

Geosciences, 2022
Landslides in urban areas have been relatively well-documented in landslide inventories despite issues in accuracy and completeness, e.g., the absence of small landslides.
Behnam Azmoon, Aynaz Biniyaz, Zhen Liu
doaj   +2 more sources

DEM-based topographic change detection considering the spatial distribution of errors

Geo-spatial Information Science
Digital Elevation Model (DEM) errors tend to be spatially correlated, inevitably affecting DEM-based topographic change detection. Traditional topographic change detection methods often ignore the spatial distribution of the DEM error. This paper aims to
Yufeng He, Shaohua Lei, Wen Dai, Xi Chen, Bo Wang, Yehua Sheng, Hui Lin   +6 more
doaj   +2 more sources

Novel Method for Monitoring Mining Subsidence Featuring Co-Registration of UAV LiDAR Data and Photogrammetry

Applied Sciences, 2022
Addressing the problem that traditional methods cannot reliably monitor surface subsidence in coal mining, a novel method has been developed for monitoring subsidence in mining areas using time series unmanned aerial vehicle (UAV) photogrammetry in ...
Jibo Liu, Xiaoyu Liu, Xieyu Lv, Bo Wang, Xugang Lian   +4 more
doaj   +2 more sources

Dry Means Green—Using ALS LiDAR DEM to Determine the Geomorphological Reaction of a Large, Untrained, European River to Summer Drought (the Vistula River, Warsaw, Poland)

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Using ALS LiDAR DEM, we study the geomorphology and geoecology of fluvial islands in the channel of braided river, which was affected by summer drought.
Grzegorz Wierzbicki, Pawel Sudra, Tomasz Lewicki, Kacper Pawlowski, Jacek Jozwiak, Jaroslaw Chormanski   +5 more
doaj   +2 more sources

Monitoring Mining Surface Subsidence with Multi-Temporal Three-Dimensional Unmanned Aerial Vehicle Point Cloud

Remote Sensing, 2023
Long-term and high-intensity coal mining has led to the increasingly serious surface subsidence and environmental problems. Surface subsidence monitoring plays an important role in protecting the ecological environment of the mining area and the ...
Xiaoyu Liu, Wu Zhu, Xugang Lian, Xuanyu Xu   +3 more
doaj   +2 more sources