Results 11 to 20 of about 168,273,991 (236)
Estimating the Evolution of a Post-Little Ice Age Deglaciated Alpine Valley through the DEM of Difference (DoD) [PDF]
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 +2 more
doaj +7 more sources
Improving the Accuracy of Global DEM of Differences (DoD) in Google Earth Engine for 3-D Change Detection Analysis [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Digital elevation models (DEMs) represent the geospatial dataset core needed to model 3-D changes. The optimal dataset must be selected according to the environmental phenomenon under investigation as the offered resolution strongly affects the information level.
Alessandra Capolupo
openaire +5 more sources
Remote Sensing, 2022 The advances of remote sensing techniques allow for the generation of dense point clouds to detect detailed surface changes up to centimeter/millimeter levels.
Gene Bailey +5 more
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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 +2 more
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Depth of rainfall induced landslides revealed by DEM of difference analysis using airborne LiDAR data in igneous terrains [PDF]
Scientific ReportsLandslide areas and depths were investigated using a digital elevation model (DEM) of difference (DoD) analysis based on pre- and post-rainfall airborne laser survey data.
Yuki Kudo, Taro Uchida, Misa Tsushima
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Time-Series Analysis of Microtopographic Evolution and Morphological Changes in Regressive Tidal Creeks via UAV-LiDAR [PDF]
SensorsThis 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
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DEM-based topographic change detection considering the spatial distribution of errors
Geo-spatial Information ScienceDigital 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 +6 more
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International Journal of Applied Earth Observations and GeoinformationEstimating landslide volumes remains challenging because of the limited availability of high-resolution terrain data. Traditional methods often rely on empirical area-to-volume conversion formulas, which introduce significant uncertainties due to terrain
Yu-En Yang, Teng-To Yu
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DronesUAV-based topographic change detection is widely used in geoscience communities. The change detection involves comparison of two digital elevation models (DEMs) produced by UAV surveys, which are affected by the DEM resolution.
Wen Dai +5 more
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Geomatics, Natural Hazards & RiskThis study assesses sediment erosion rates in the Zhoukou River Basin in southern Taiwan over the past three decades, focusing on the impact of extreme rainfall events.
Gopal Kumar +3 more
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