Results 21 to 30 of about 8,313,860 (291)

A comparison of structure from motion photogrammetry and the traversing micro-erosion meter for measuring erosion on shore platforms [PDF]

open access: yesEarth Surface Dynamics, 2018
For decades researchers have used the micro-erosion meter and its successor the traversing micro-erosion meter to measure micro-scale rates of vertical erosion (downwearing) on shore platforms.
N. D. Cullen, A. K. Verma, M. C. Bourke
doaj   +1 more source

19937400279/Improved-Change-Detection-Method: Improved Change Detection Method Data

open access: yes, 2023
<p>We propose an improved change detection method and expose all the data and code used.
山川如故
core   +1 more source

Short Communication: A simple workflow for robust low-cost UAV-derived change detection without ground control points [PDF]

open access: yesEarth Surface Dynamics, 2019
High-quality 3-D point clouds generated from repeat camera-equipped unmanned aerial vehicle (UAV) surveys are increasingly being used to investigate landscape changes and geomorphic processes.
K. L. Cook, M. Dietze
doaj   +1 more source

Detecting and Mapping Gas Emission Craters on the Yamal and Gydan Peninsulas, Western Siberia

open access: yesGeosciences, 2021
Rapid climate warming at northern high latitudes is driving geomorphic changes across the permafrost zone. In the Yamal and Gydan peninsulas in western Siberia, subterranean accumulation of methane beneath or within ice-rich permafrost can create mounds ...
Scott Zolkos   +7 more
doaj   +1 more source

3D POINT ERRORS AND CHANGE DETECTION ACCURACY OF UNMANNED AERIAL VEHICLE LASER SCANNING DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Unmanned aerial vehicle laser scanning (ULS) has recently become available for operational mapping and monitoring (e.g. for forestry applications or erosion studies).
A. Mayr   +4 more
doaj   +1 more source

A Bayesian Climate Change Detection and Attribution Assessment [PDF]

open access: yes, 2005
A Bayesian analysis of the evidence for human-induced climate change in global surface temperature observations is described. The analysis uses the standard optimal detection approach and explicitly incorporates prior knowledge about uncertainty and the ...
Lee, T. C. K.   +4 more
core   +1 more source

Assessment of gully development using geomorphic change detection between pre- and post-urbanization scenarios

open access: yesEnvironmental Earth Sciences, 2020
Urbanization processes have caused changes in the runoff behavior, especially by impervious surfaces produced by paving and buildings. Impermeable surfaces prevent the infiltration of rainwater, increasing the volume and speed of runoff. Besides, inadequate urban planning coupled with heavy rains promotes the evolution of erosion processes, especially ...
Anesmar Olino de Albuquerque   +4 more
openaire   +2 more sources

Comparison of alternative image representations in the context of SAR change detection [PDF]

open access: yes, 2010
This article compares four different alternative image representations in the context of a structure-based change detection. The framework is taken from the already published Curvelet-based change detection approach.
Roth, Achim   +7 more
core   +1 more source

Hydrogeomorphological analysis and modelling for a comprehensive understanding of flash-flood damage processes: the 9 October 2018 event in northeastern Mallorca [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2020
A flash-flood event hit the northeastern part of Mallorca on 9 October 2018, causing 13 casualties. Mallorca is prone to catastrophic flash floods acting on a scenario of deep landscape transformation caused by Mediterranean tourist resorts.
J. Estrany   +14 more
doaj   +1 more source

Multi-temporal UAV based repeat monitoring of rivers sensitive to flood

open access: yesJournal of Maps, 2021
Multi-temporal repeat monitoring of flood-vulnerable rivers is crucial due to rapid alteration of morphological properties of in-channel landforms. Besides, the characteristics of the river crossing bridges may deteriorate due to flood induced scouring ...
Orkan Özcan, Okan Özcan
doaj   +1 more source

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