Results 41 to 50 of about 51,656 (262)

Energy Characteristics of Acoustic Emission at the Volume-Expansion Point of a Rock Bridge: A New Insight into the Evolutionary Mechanism of Coastal Cliff Collapse

open access: yesJournal of Marine Science and Engineering, 2021
The recession of a coast can destabilize coastal cliffs. The stability of a cliff is controlled by a rock bridge. Identifying the volume-expansion point of rock bridges is crucial to assess cliff stability, but currently there are few identifying methods.
Hongran Chen, Mengyang Zhai, Lei Xue
doaj   +1 more source

Geomorphological control on boulder transport and coastal erosion before, during and after an extreme extra-tropical cyclone [PDF]

open access: yes, 2016
Extreme wave events in coastal zones are principal drivers of geomorphic change. Evidence of boulder entrainment and erosional impact during storms is increasing.
Cowley, Andrew   +5 more
core   +1 more source

Wind Tunnel Investigation of the Wind Patterns in the Launching Pad Area of the Brazilian Alcântara Launch Center

open access: yesJournal of Aerospace Technology and Management, 2019
This paper presents a wind tunnel study of the flow patterns in the main Brazilian Space Port, the Alcântara Launch Center (ALC), located in the Northwest region, over an irregular coastal cliff of 40 m height. In the ALC region, constant winds of strong
Amanda Felippe Faria   +2 more
doaj   +3 more sources

Erosion and sediment supply of sea cliffs of Todos Santos Bay, Baja California, from 1970 to 1991

open access: yesCiencias Marinas, 1997
 Aerial photographs from INEGI for October 1970, October 1985, July 1989 and September 1991 were analyzed to calculate the cliff retreat rate and sediment volume supplied to the coastal system in four coastal sectors of Todos Santos Bay: San Miguel, El ...
ME Cruz-Colín, LA Cupul-Magaña
doaj   +1 more source

A geotechnical and GIS based method for evaluating risk exposition along coastal cliff environments: a case study of the chalk cliffs of southern England [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2011
The present work has established a methodology that allows the user to determine areas susceptible to shoreline recession and cliff instability. This methodology includes the development of a qualitative loss estimation system which utilizes geotechnical
A. Stavrou   +3 more
doaj   +1 more source

ASSESSMENT OF THE PRECISION OF A SMART-PHONE POLE PHOTOGRAMMETRY FOR A SECOND-ORDER CLIFF SURFACE DEFORMATION STUDIES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Coastal cliff is almost a vertical elongated structure with a wave-cut notch and a landslip. Cliffs are geological formations with an almost unpredictable and unstoppable detachment between constitutes formations.
M. A. Eboigbe, D. B. Kidner
doaj   +1 more source

Modelling of wave climate and sediment transport patterns at a tideless embayed beach, Pirita Beach, Estonia [PDF]

open access: yes, 2008
Nearshore sand transport patterns along the tideless, embayed Pirita beach, Tallinn, Estonia, have been investigated utilizing high-resolution modelling of wave processes combined with bathymetric surveys and sediment textural analyses of the nearshore ...
Healy, Terry R.   +3 more
core   +2 more sources

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

A framework for determining the critical distance for construction near cliff crest considering the effects of structure-soil-structure interaction: case study of Sidmouth, UK

open access: yesJournal of Engineering and Applied Science
Coastal cliffs are continuously shaped by forces from waves, tides, and storm surges, leading to significant erosion and structural changes that affect both natural and built environments.
Ali Khosravifardshirazi   +3 more
doaj   +1 more source

Beach and cliff retreat induced by storm groups at Forte Novo,Algarve (Portugal) [PDF]

open access: yes, 2011
Littoral cell dynamics may change through time as a reaction to modifications of the coastal system. Along the Vilamoura-Quarteira coastline, the construction of a groin field limited the sediment supply to the already narrow Forte Novo beach, located ...
Baily, Brian   +3 more
core  

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