Results 1 to 10 of about 256 (102)
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 +5 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
exaly +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 +2 more
doaj +2 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
doaj +3 more sources
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
doaj +2 more sources
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
doaj +3 more sources
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
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 +3 more
doaj +3 more sources
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 +1 more source
Volumetric change analysis of the Cauvery delta topography using radar remote sensing
Egyptian Journal of Remote Sensing and Space Sciences, 2022 Geomorphology refers to the study of the Earth’s physical land surface features. Digital Elevation Model (DEM) is a digital imagery where each pixel represents elevation value above or below mean sea level.
Sambandan Rajakumari +3 more
doaj +1 more source