Results 41 to 50 of about 4,250 (222)
EcosphereResource subsidies, or the flow of energy across ecosystem boundaries, can influence community structure and function and act as important nutrient sources to less productive ecosystems, particularly in marine and coastal zones.
Katya R. Jay +3 more
doaj +1 more source
Annual Review of Fluid Mechanics, 2013 An erodible bed sheared by a fluid flow, gas or liquid, is generally unstable, and bed forms grow. This review discusses the following issues, in light of the recent literature: What are the relevant dynamical mechanisms controlling the emergence of bed forms? Do they form by linear instability or nonlinear processes such as pattern coarsening?
Charru, François +2 more
openaire +4 more sources
Geological Journal, EarlyView.This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi +3 more
wiley +1 more source
Geological Journal, EarlyView.In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin +4 more
wiley +1 more source
Journal of Plant Nutrition and Soil Science, EarlyView.Topography shapes ecosystem controls, driving microclimate, hydrology, and vegetation, which, in turn, influence topsoil traits and DOM composition in coastal dune soils. Distinct molecular patterns emerge across north‐facing and south‐facing slopes and dune valleys.
Lejonina Herting +5 more
wiley +1 more source
Experimental characterization of a new sustainable sand concrete in an aggressive environment
Fracture and Structural Integrity, 2020 The scarcity of building materials and the shortage of coarse aggregates which represents the main component of concrete is a problem in the most third world countries, especially in the vast desert areas in Algeria.
Mohammed Mani +3 more
doaj +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon +3 more
wiley +1 more source
On the non-linear evolution of sand dunes [PDF]
Geophysical Journal International, 1981 Adopting a multiple scale method, the non-linear evolution of fully developed dunes of non-cohesive sand is studied using Kennedy’s model. It is shown that both the twoand three-dimensional problems are, in general, governed by three coupled second-order partial differential equations. However, for boundary conditions appropriate to localized solutions
Eltayeb, I. A., Hassan, M. H. A.
openaire +2 more sources
Review of the Salpausselkä ice‐marginal formations in Finland
Journal of Quaternary Science, EarlyView.ABSTRACT Extensive Salpausselkä ice‐marginal formations were deposited in southern and eastern Finland during the Weichselian deglaciation. These comprise three major ridges (I, II, and III Salpausselkäs) and their eastern counterparts (Tuupovaara, Koitere, and Pielisjärvi), together forming laterally continuous ice‐marginal formations extending ...
Jukka‐Pekka Palmu +3 more
wiley +1 more source
Journal of Maps, 2019 The sand islands and shore-attached dune fields of south east Queensland form the world’s oldest and largest coastal sand dune system. Here we present updated morphological maps for the dune fields based on topographic expression and geomorphic ...
Nicholas R. Patton +2 more
doaj +1 more source