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Fingered flow: the creator of sand columns in dune and beach sands

Fingered flow: the creator of sand columns in dune and beach sands
Sand columns, sand cones, sand mushrooms and other striking sand forms are frequently observed in the Dutch and German beach and dune sands. The objective of this study is to describe, explain and illustrate the origin of sand columns in bare dune
and beach sands.

Aeolian decoupling of beach sediments

Aeolian decoupling of beach sediments
Beach ; California ; Coastal environment ; Coastal erosion ; Creep ; Dune ; Eolian transport ; Grain size distribution;Granulometry ; Marine sediment ; Sand ; United States
Nature of decoupling process accross a beach dune complex and implications for aeolian transport rate predictions. The study is based on the example of Monterey Bay, California.

Sediment transport and morphodynamics of the beach and nearshore zone near Egmond, The Netherlands

Sediment transport and morphodynamics of the beach and nearshore zone near Egmond, The Netherlands
The hydrodynamics and the suspended sediment fluxes are studied in detail at the crest and on the seaward slope of a swash bar on the intertidal beach. The small scale morphological behaviour of the beach and the meso scale morphological behaviour

Variations of spacings between beach cusps discussed in relation to edge wave theory

Variations of spacings between beach cusps discussed in relation to edge wave theory
Beach cusps ; Coastal dynamics ; Coastal environment ; Denmark ; Model ; Statistics ; Wave
Variations in cusp spacings of beach cusp systems have been examined, and the conclusion is that the apparent regularity of the spacings is not always real. Established edge wave theory predicts equal cusp spacings, and accordingly, the theory needs

Three-dimensional topographic on the foreshore zone of sandy beaches

Three-dimensional topographic on the foreshore zone of sandy beaches
-dimensional beach model in the foreshore zone on sandy beaches was constructed. - (SGA)

Behaviour of beach profiles during accretion and erosion dominated periods

Behaviour of beach profiles during accretion and erosion dominated periods
The aim of this paper is to evaluate subaerial beach profile shapes from Moruya to determine the morphological characteristics of beach and associated foredune profiles in each of two periods recognized from a previous study : the accretion

Mesoscale beach processes

Mesoscale beach processes
Observations of mesoscale beach evolution are reviewed : observations of beach change; nearshore bar systems; long-term datasets; mesoscale modelling. As engineers and other marine scientists become increasingly interested in issues of scale

Breaching of a beach ridge and the formation of beach cusps

Breaching of a beach ridge and the formation of beach cusps

Beach erosion on the Tyrrhenian coast of Calabria in Coastal problems, in the mediterranean sea.

Beach erosion on the Tyrrhenian coast of Calabria in Coastal problems, in the mediterranean sea.
Physiographic characters of the shore. Recent changes of beaches. Main causes of beach erosion.

Beachrock on Pattaya beach in southeastern Thailand

Beachrock on Pattaya beach in southeastern Thailand
Beach rock ; Calcite ; Cimentation ; Géographie de l'Asie ; Littoral ; Pattaya ; Plage ; Sédimentologie ; Thaïlande ; Zone intertidale
Sur la plage de Pattaya, sur la côte E du golfe de Siam, les sédiments de l'estran consistent en un mélange de grains de quartz et de feldspath et de bioclastes marins consolidés par un ciment marin et transformés en beach-rock (microphotographies).

Pebbles and cobbles on the Belgian North Sea beach

Pebbles and cobbles on the Belgian North Sea beach
Quantitative and qualitative data are given for 276 pebble (4-64 mm) and cobble (64-256 mm) specimens from eight localities of the Belgian North Sea beach. The change in concentration of Paniselian sandstone since 1954 suggests a change
in hydrodynamic activity of the beach during the last twenty years. (L'A.).

A field experiment of cusp formation on a coarse clastic beach using a suspended video-camera system

A field experiment of cusp formation on a coarse clastic beach using a suspended video-camera system
Beach cusp ; Coastal environment ; Earth surface processes ; Field experiment ; Japan ; Micromorphology ; Pacific Region ; Photointerpretation

Revere Beach : a peculiarly American seaside resort

Revere Beach : a peculiarly American seaside resort
The first public bathing beach in America, located near Boston, has undergone three phases over the past century. - (DWG)

Local motion : life at the Huntington Beach pier

Local motion : life at the Huntington Beach pier
Since the turn of the century, this beach has seen a succession of recreational activities, especially surfing. - (DWG)

Recreational travel to New South Wales beaches

Recreational travel to New South Wales beaches
Certain social profile variables known to affect recreational travel are discussed, and considered in relation to the movement of day trippers to beaches in Southern New South Wales. The relationships between these variables and distances travelled

Conditions for beach erosion on a barred beach

Conditions for beach erosion on a barred beach
Beach ; Coastal dynamics ; Coastal environment ; Coastal erosion ; Japan ; Wave

Grès de plage sur la côte espagnole in Le beach-rock.

Grès de plage sur la côte espagnole in Le beach-rock.
Ancien rivage ; Asturias ; Atlantique ; Atlantique, nord ; Beach rock ; Cimentation ; Espagne ; Grès littoral ; Géographie physique ; Géomorphologie littorale ; Holocène ; Littoral ; Niveau marin ; PICG 200 ; Quaternaire marin ; Verdicio
On Verdicio beach, in Penas cape, on the northern Spanish coast, an holocene littoral sandy deposit is transformed into sandstone. It is protected from the sea water by a present sandy littoral formation, and it is in contact with the fresh water
of a streamlet. This sandstone does not seem to be an actual beach-rock despite some analogies.

The role of wind direction in eolian transport on a narrow sandy beach

The role of wind direction in eolian transport on a narrow sandy beach
Comparison of eolian transport during five high-velocity wind events over a 29 day period on a narrow estuarine beach in Delaware Bay, New Jersey, USA, reveals the temporal variability of transport, due to changes in direction of wind approach
. Eolian transport is greatest during low tide and rising tide, when the beach source area is widest and when drying of surface sediments occurs. The ability of the beach surface to supply grains to the air stream is limited on narrow beaches, but increased
source width, due to oblique wind approach, can partially overcome limitations of surface conditions on the beach.

A study of berms on sandy beaches

A study of berms on sandy beaches
Beach ; Beach profile ; Coastal dynamics ; Coastal environment ; Experimentation ; Hokkaido ; Japan ; Sand ; Sedimentary structure ; Sedimentology ; Wave
The formation of berms on sandy beaches is examined in connection with nearshore wave and sediment dynamics. A series of experiments on the formation of berms were carried out in a small-scale wave flume. Three growth types of berms were found
: landward, upward and seaward types. Time-series data of the beach profile obtained at Ajiga-ura beach, Ibaraki, Japan, were used for the examination of applicability of the experimental results to the field situation, where collapsing related berms

Internal structure of a barrier beach as revealed by ground penetrating radar (GPR) : Chesil beach, UK

Internal structure of a barrier beach as revealed by ground penetrating radar (GPR) : Chesil beach, UK
Here, the AA. present a three-fold model for the evolution of Chesil Beach (Dorset) based on a series of 9 ground penetrating radar (GPR) traverses located at 3 sites along its length at Abbotsbury, Langton Herring and at Ferry Bridge. The case
study not only refines the evolutionary picture of Chesil Beach, but illustrates the importance of the subtle interplay between relative sea level and sediment supply in the evolution of a barrier system. In addition, it also illustrates the potential
of GPR in resolving the evolutionary history of gravel-rich coastal landforms such as Chesil Beach.

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