Beach ; Coastal environment ; Coastal erosion ; Coastal geomorphology ; Coastal sedimentation ; Coastline ; Human impact ; North Carolina ; Space time ; United States of America
This study assesses the impacts of morphologic variations, associated with beach cusps and nourishment material, on volume change estimates from profiles and shoreline change at 0.5 to 3.5 year time periods. Volume changes at the edges
of nourishment areas are not captured well by profiles. When the nourishment material is graded to a ramped morphology, which minimizes across-beach morphologic variability, the shoreline-change proxy does accurately estimate volume changes. Both proxies estimate
volume changes inaccurately at beaches where volume changes oscillate between erosion and accretion on both short and long time scales because the magnitude of small-scale changes in volume from the formation and erosion of morphologic features
volume change; however, recent anthropogenic modifications that impact patterns of beach sedimentation, including nourishment, terminal groins, and inlet-channel dredging, makes decadal records less useful.
Alongshore variation in beach cusp morphology in a coastal embayment
Australia ; Beach cusp ; Coastal dynamics ; Coastal environment ; Model ; New South Wales ; Wave
The variation in beach cusp characteristics was examined along a 1 km long embayed beach (Pearl Beach, New South Wales, Australia), to test the edge wave model and the self-organization mechanism of beach cusp formation.
Beach comfort index - a new approach to evaluate the thermal conditions of beach holiday resorts using a South African example
Applied climatology ; Beach ; Bioclimatology ; Climatic index ; Comfort ; Human bioclimatology ; Model ; Perception ; Radiation ; Seaside tourism ; South Africa ; Tourism ; Tourism industry
The climatic conditions of seven beach holiday resorts in South Africa (Alexander Bay, Cape Town, George, Port Elizabeth, East London, Durban and Richard's Bay) have been examined with regard to the thermal perception of beach holidays makers
. A model has been developed to calculate the missing radiation input data and parameters such as beach day and beach hour are introduced and defined. The Beach Comfort Index Map of South Africa shows the maximum, minimum and average number of beach days per
month and the probability of beach days and thus providing understandable and interpretable information on the thermal conditions of the sites from the point of view of beach holiday makers.
Factors influencing human beach choice on three South African beaches: a multivariate analysis
This paper investigates, by means of a questionnaire survey the factors influencing human beach choice on three beaches with different levels of development and whether respondents on the different beaches consider different characteristics
important on an ideal beach. By means of multiple discriminant analysis, visitors can be classified according to the beaches they are interviewed on, based solely on the different reasons for visiting them as well as on the characteristics they consider
Australia ; Beach cusp ; Coastal environment ; Coastal geomorphology ; Hydrodynamics ; Intertidal zone ; Sedimentology ; Wave ; Western Australia
This paper provides a detailed description of the development of a natural beach cusp system in Perth, Western Australia. Observations of the incident wave conditions, instantaneous shoreline and three-dimensional beach morphology were obtained over
a period of 6 days. The results obtained provide a clear insight into the morphodynamics of natural beach cusps.
Factors influencing beach erosion and accretion a global review in Sandy beaches as ecosystems.
It is necessary on each sector of sandy coastline to consider all the factors and to decide which have been dominant in producing beach erosion and accretion. The attempts to analyse the advance or retreat of sandy coastlines in terms of volumetric
budgeting will characterise the next phase of research into beach erosion and accretion.
Spatial and seasonal aspects of shoreline changes at Forcados Beach, Nigeria
This paper is an attempt to clarify the position with respect to a humid tropical situation by examining the spatial and temporal variation in beach erosion and accretion at Forcados Beach in Nigeria. The essence here is to be able to identify
the category in coastal dynamics to which beach changes at the study area can be ascribed.
Beach rock litorale Morphodynamik und Meeresspiegeländerungen nach Befunden auf Euboa (Griechenland). in Beiträge zur Geomorphologie und Länderkunde. Prof. Dr. Harmut Valentin zum Gedächtnis.. (Beach rock. Littoral morphodynamics and sea level
Beach rocks are beach materials lithified above high tide level. The beach material will be cemented under the prevailing conditions of Mediterranean climate there. Before being cemented beach materials must have been wetted, and this process
is linked to rare oceanographic-climatic conditions, such as wind-tides lifting up the sea level and extending the swash zone landward. Under even these conditions beach rocks are destroyed by backswash and breakers, too. Formation and destruction of beach
rock occur at the same time. Periods of months, years or 10 years are required for beach rock formation, whereas beach rocks may be destroyed in periods of 10-10 years. The authors working on beach rock up to now agree beach rock to be an excellent
The provenance of beach sediments on Rhodes, southeastern Greece, indicated by sediment texture, composition and roundness
Beach ; Coastal dynamics ; Coastal environment ; Grain size distribution ; Greece ; Island ; Mineralogy ; Sediment transport ; Sedimentology ; Wave ; Wind
Nine different types of beaches were selected, on the basis of configuration (pocket beach or staight beach), profile (cliff, bluff or dunes), whether a river runs on to the beach or not, and the length of the fetches in the directions of prevailing
or predominant waves, as key areas for study of the transport and provenance of the beach sediments. The texture, composition, provenance, and transport of beach sediments and the roundness of sediment grains were studied with the purpose to throw light upon
Le beach-rock de la côte libanaise in Le beach-rock.
Ancien rivage ; Beach rock ; Géographie de l'Asie ; Géomorphogenèse ; Géomorphologie littorale ; Holocène ; Liban ; Littoral ; Niveau marin ; PICG 200 ; Quaternaire marin ; Quaternaire supérieur
The coast of Lebanon lends itself particulary well to the development of beach-rock, whatever the pluviometry, the nature of sediments, or the size of its constitutive elements. If the beach-rock does not appear in areas where the coastline
is stable, it is present where the coast is receding. Beach-rock does not originate in the material which composes the present beach, but in fossil marine deposits which may be several millenia old (Bronze Age, for example).
Beach-rocks of coastal beaches or of sand reef cays could be considered as witnesses: 1) of the coastal morphology, of the sedimentary conditions and of the altitudinal sea level| 2) of the wave-exposure. It's in this view that are analysed: 1
) the fossilized organisms into the beach-rocks| 2) the organisms that could be fossilized or apt to leave a matrix or a print, that colonize beach-rocks when they are exposed and when they form hard-substrates.
the problem of whether the beach-rock is associated with Holocene fossil beaches. The result of the review varies according to sites. The second series intends to insist upon the value of beach-rock in the study of the variation of sandy beach outlines
Réflexion sur les beach-rocks de la mer Méditerranée in Le beach-rock.
Ancien rivage ; Beach rock ; Diagenèse ; Géographie physique ; Géomorphogenèse ; Géomorphologie littorale ; Holocène ; Liban ; Littoral ; Méditerranée ; Méditerranéens, pays ; Niveau marin ; PICG 200 ; Quaternaire marin ; Soudan ; Stratigraphie
Numerous examples all along the Mediterranean coastline show that beach-rock frequently originates inside soft fossil holocene marine deposits and is exposed only when the coast recedes. The present beach often hides it during the summer, thus
making it possible for a veil of sand to cement itself unconformably on the slabs of beach-rock. The phenomenon of receding coastlines being general in the Mediterranean, it is quite natural that beach-rock forms in this ancient sedimentary stock
In tropical regions beach-rock in the best tool for the study of the variations of sandy beach outlines during the last 6 000 years. In Madagascar, it is very frequent, especially in the coral reef areas. It provides possibilities to obtain data
concerning the evolution, often very complicated, of littoral spits, sand cays, and motu. Arrecifes, on the SE, S and SW coasts of Madagascar, are not Flandrian beach rocks, but probably contemporaneous with the post Eemian regression.
Essai de synthèse sur le beach-rock in Le beach-rock.
Beach rock ; Géographie physique ; Géomorphogenèse ; Littoral ; Milieu marin ; Niveau marin ; PICG 200 ; Sédimentologie
A l'issue du colloque sur le beach-rock, les participants ont élaboré la définition suivante: le beach-rock est une formation sédimentaire indurée sous l'effet d'une cimentation carbonatée, réalisée au niveau de l'étage médiolittoral. Il existe des
beach-rocks fossiles, situés à des altitudes supérieures ou au contraire inférieures au niveau actuel de la mer.