Results 61 to 70 of about 18,634 (182)

Dune morphodynamics

open access: yesComptes Rendus. Physique, 2015
The physics of dunes relies on the interaction between a wind flow and an erodible topography. Thus, if strong enough to transport grains, the wind shapes sandy areas into dune fields. These dunes are reminiscent of a wavy sea so that sandy deserts are called sand seas. However, the comparison stops there.
openaire   +1 more source

A quantitative criterion to predict the occurrence of tidal bores [PDF]

open access: yes, 2018
-Tidal bores are fascinating phenomena that occurs in the estuary of many tidal rivers worldwide. -Tidal bores have significant repercussions on ecology and morphodynamics of an estuary.
Defina, Andrea, Viero, DANIELE PIETRO
core  

Morphodynamic Profiling of Protrusion Phenotypes [PDF]

open access: yesBiophysical Journal, 2006
We propose a framework for tracking arbitrary complex cell boundary movements, relying on a unique definition of protrusion and retraction as the pathlength a virtual edge marker traverses when moving continuously perpendicular to the cell boundary. We introduce the level set method as a numerical scheme to reconstruct continuous boundary movement in ...
Machacek, M., Danuser, G.
openaire   +2 more sources

Seasonal behaviour of tidal damping and residual water level slope in the Yangtze River estuary: identifying the critical position and river discharge for maximum tidal damping [PDF]

open access: yes, 2019
As a tide propagates into the estuary, river discharge affects tidal damping, primarily via a friction term, attenuating tidal motion by increasing the quadratic velocity in the numerator, while reducing the effective friction by increasing the water ...
Cai, Huayang   +7 more
core   +1 more source

Fracto-Morphodynamics

open access: yes, 2022
In this work the connection between curvature, the emergence of the universe, and the process of morphogenesis is investigated in detail. We have come a long way from general relativity using differential geometry, which describes the curvature of space-time as an emergent phenomena, to the more recent theory of loop quantum gravity using non-geometric
openaire   +1 more source

Remote sensing of tidal networks and their relation to vegetation [PDF]

open access: yes, 2004
The study of the morphology of tidal networks and their relation to salt marsh vegetation is currently an active area of research, and a number of theories have been developed which require validation using extensive observations. Conventional methods of
Mason, D.C., Scott, T.R.
core  

Long term behaviour of singularly perturbed parabolic degenerated equation [PDF]

open access: yes, 2011
In this paper we consider models for short-term, mean-term and long-term morphodynamics of dunes and megariples. We give an existence and uniqueness result for long term dynamics of dunes.
Faye, Ibrahima   +2 more
core   +2 more sources

Surficial sediment texture database for the south-western Iberian Atlantic margin [PDF]

open access: yes, 2018
Assessing the impact of changes on the environment driven by natural or anthropogenic forcers includes the comparison between antecedent and post-event conditions.
Costas, Susana   +4 more
core   +2 more sources

On how spatial variations of channel width influence river profile curvature

open access: yesGeophysical Research Letters, 2016
Longitudinal profiles of alluvial rivers usually exhibit upward‐concave curvatures at equilibrium. River profile concavity has been primarily attributed to sediment downstream fining and to streamwise increments of water discharge.
Carles Ferrer‐Boix   +4 more
doaj   +1 more source

Remote sensing of intertidal morphological change in Morecambe Bay, U.K., between 1991 and 2007 [PDF]

open access: yes, 2010
Tidal Flats are important examples of extensive areas of natural environment that remain relatively unaffected by man. Monitoring of tidal flats is required for a variety of purposes. Remote sensing has become an established technique for the measurement
Dance, S. L., Mason, D. C., Scott, T. R.
core   +1 more source

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