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The development of subhorizontal shore platforms by waves and weathering in microtidal environments
Coastal environment ; Coastal erosion ; Intertidal zone ; Model ; Shore platform ; Wave ; Weathering
A mathematical wave and weathering model was used to study the formation of subhorizontal platforms in microtidal environments. Backwearing (horizontal erosion) rates by wave erosion were calculated for different tidal levels using basic wave
equations. Downwearing (vertical erosion) rates by weathering and debris removal by waves at the same tidal levels were derived from long-term laboratory experiments and from field data. Model runs suggested that wave erosion was more important in the past
2008

Roughly linear forest patches are common in subalpine environments, including hedges, ribbon forest, and Shimagare or wave regenerated forests (waves). The influence of wind is common among these patterns, but the role of positive feedback, the most
important component of self-organization in biological systems varies. Hedges and waves can develop endogenously with a constant wind, and so can be considered self-organizing. Most ribbon forests seem to be dominated by exogenous forces.
2008

This article deals with the reconstruction of the dam breach of the Blažnov pond and consequent flood wave progress in the riverbed of the small brook. The flood wave progressed through the brook valley with the length of 0.7 km. For the modelling
2008

of data recorders. By artificially producel flood waves in the small brooks Riverisbach, Olewiger Bach and by a winter flood wave in the River Moselle, it is possible to elaborate similar structures of the signal course of the bedload movement. Discussion
2008

Biodiversity ; Brazil ; Cluster analysis ; Coastal environment ; Dune ; Foreshore ; Santa Catarina ; Spatial distribution ; Vegetation ; Wave ; Wind
environmental variables, since the presence/absence of the species can also change with gradients in beach/surfzone type and exposure to wind and wave energy. The results show that the vegetation cover decreases from south to north. A cluster analysis
demonstrated 2 associations : the first one is represented by the profiles located in the lower energy zone of the beach, and the second association is represented by the profiles more exposed to wind and wave energy, sediment deposition and salt spray
. The diversity of species decreases northwards, possibly influenced by the surfzone type, number of breaking waves and degree of aeolian transport.
2008

Coastal dynamics ; Coastal environment ; Coastal erosion ; Mass movement ; Sea level ; United Kingdom ; Wales ; Wave ; Wind
correlation between forcing agents (extreme sea level and wind direction) and shoreline indicators. It was concluded that the critical erosion of Penarth beach between 1995 and 1997 was caused by increased wave attack generated by unique significant changes
2008

. Their origin could only be wind or waves driven. Although many chevrons resemble narrow parabolic coastal dunes, a young aeolian genesis can be excluded where orientation contradicts main wind direction, or where no beach or sand deposit exists. Where storm
origin can be excluded due to chevron height and extension far beyond storm wave reach pre-historic tsunamis were considered.
2008

wave of the motion picture affect the different levels of the settlement hierarchy ? - (AM)
2008

This study describes the morphodynamics of multiple intertidal bars in North Lincolnshire during single and lunar tidal cycles under 2 contrasting conditions : first when significant wave height was
morphology are accomplished by surf zone processes rather than by shoaling wave or swash processes. It was found, however, that swash action may induce a significant amount of local morphological change when the high tide mark is located on the upper bar
2008

population and its economy. Waves of immigration, population losses by domestic migration and ethnic variety are as restructuring and globalization. - (IfL)
2008

In this paper, the analytical expression of the solution of the differential equation of the erosion process (diffusion equation) is found and the behaviour of this solution in the spatial and wave number domains is studied. The theoretical
2008

Chile and 1:50 000 topographic map shets (Instituto Geographico Militar de Chile 1982). The exposed delta fronts are marked by a series of small terraces produced by wave erosion during falling lake levels.
2008

Landform connectivity and waves of negative feedbacks during the paraglacial period, a case study : the Tabuc subcatchment since the end of the Little Ice Age (massif des Ecrins, France)
2008

Applied ecology ; Diffusion ; Electrical conductivity ; Electromagnetic field ; Electromagnetic radiation ; Environment ; Facilities ; France ; Nuisance ; Radiofrequency wave ; Television ; Wave propagation
2008

development. The main cause for the flux gradients were cross-shore gradients in offshore-directed mean current (undertow) speed which depended upon local relative wave height and local bed slope.
2008

Bioclimatology ; Health ; Heat wave ; Human bioclimatology ; Italy ; Man-environment relations ; Mortality ; Spatial variation ; Temperature ; Town
2008

Climatology ; Health ; Heat wave ; Human bioclimatology ; Mortality ; Portugal ; Preventive measure ; Temperature
2008

This paper presents a data-based study of waves, currents, sediments and subaqueous bedforms including the application of Principal Component Analysis (PCA) to the measured coastal profiles in order to understand qualitative and quantitative
2008

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