Results 31 to 40 of about 9,086 (270)

Quantification and visualization of flood-induced morphological changes in meander structures by UAV-based monitoring

open access: yesEngineering Science and Technology, an International Journal, 2022
River basins are one of the most dynamic terrains on Earth, therefore, river morphology should be monitored continuously and its effects on the environment (i.e. natural hazards) should be mapped whenever possible.
Semih Sami Akay   +2 more
doaj   +1 more source

Open-ended evolution to discover analogue circuits for beyond conventional applications [PDF]

open access: yes, 2012
Analogue circuits synthesised by means of open-ended evolutionary algorithms often have unconventional designs. However, these circuits are typically highly compact, and the general nature of the evolutionary search methodology allows such designs to be ...
Kalganova, TG
core   +1 more source

Quantitative Characterization of Coastal Cliff Retreat and Landslide Processes at Portonovo–Trave Cliffs (Conero, Ancona, Italy) Using Multi-Source Remote Sensing Data

open access: yesRemote Sensing, 2023
The integration of multiple data sources, including satellite imagery, aerial photography, and ground-based measurements, represents an important development in the study of landslide processes.
Nicola Fullin   +5 more
doaj   +1 more source

3-D uncertainty-based topographic change detection with structure-from-motion photogrammetry: precision maps for ground control and directly georeferenced surveys [PDF]

open access: yes, 2017
Structure-from-motion (SfM) photogrammetry is revolutionising the collection of detailed topographic data, but insight into geomorphological processes is currently restricted by our limited understanding of SfM survey uncertainties.
James, MR, Robson, S, Smith, MW
core   +2 more sources

Erosion Quantification in Runoff Agriculture Plots by Multitemporal High-Resolution UAS Digital Photogrammetry

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this work, we apply close-range photogrammetry with unmanned aircraft systems to quantify erosion with millimetric spatial resolution in agricultural plots. We evaluate the proposed methodology against the traditional runoff method on active plots.
Sergio Arriola-Valverde   +3 more
doaj   +1 more source

Ice content and interannual water storage changes of an active rock glacier in the dry Andes of Argentina

open access: yes, 2021
. The quantification of volumetric ice and water contents in active rock glaciers is necessary to estimate their role as water stores and contributors to runoff in dry mountain catchments. In the semi-arid to arid Andes of Argentina, active rock glaciers
Christian Halla   +6 more
semanticscholar   +1 more source

Assessment of a numerical model to reproduce event-scale erosion and deposition distributions in a braided river [PDF]

open access: yes, 2016
Becky Goodsell and Eric Scott are thanked for field assistance. Antony Smith assisted with figure production. The field campaign wa funded by NERC Grant NE/G005427/1 and NERC Geophysical Equipment Facility Loan 892.
Ackers   +93 more
core   +2 more sources

Descriptive Analysis of a Baseline Concussion Battery Among U.S. Service Academy Members: Results from the Concussion Assessment, Research, and Education (CARE) Consortium [PDF]

open access: yes, 2018
Introduction The prevalence and possible long-term consequences of concussion remain an increasing concern to the U.S. military, particularly as it pertains to maintaining a medically ready force.
Allred, C. Dain   +15 more
core   +1 more source

Evaluation of short-term geomorphic changes in differently impacted gravel-bed rivers using improved dems of difference

open access: yes, 2013
The evaluation of the morphological dynamics of rivers is increasingly focusing, in recent years, on the achievement of quantitative estimates of change in order to identify geomorphic trends and forecast targeted restoration actions.
F. Delai   +4 more
semanticscholar   +1 more source

Evaluation of TanDEM-X DEMs on selected Brazilian sites: comparison with SRTM, ASTER GDEM and ALOS AW3D30

open access: yes, 2018
A first assessment of the TanDEM-X DEMs over Brazilian territory is presented through a comparison with SRTM, ASTER GDEM and ALOS AW3D30 DEMs in seven study areas with distinct geomorphological contexts, vegetation coverage and land use.
Grohmann, Carlos H.
core   +1 more source

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