Beach Features Flashcards
Back shore
the area of a shore that is above the high-water mark except in very severe weather
Beach Berms
terrace of a beach that has formed in the backshore, above the water level at high tide. Berms are commonly found on beaches that have fairly coarse sand and are the result of the deposition of material by low-energy waves.
Beach Cusps
Beach cusps are shoreline formations made up of various grades of sediment in an arc pattern.
Beach Morphology
Refers to the study of the interaction and adjustment of the seafloor topography and fluid hydrodynamic processes, seafloor morphologies and sequences of change dynamics involving the motion of sediment.
Caves, Arches, Stacks and Stumps
Formed by erosion.
Concordant coast
A concordant coastline has the same type of rock along its length. Concordant coastlines tend to have fewer bays and headlands
Cuspate Foreland (low lying headland)
An accretionary feature consisting of a triangular accumulation of sand or shingle projecting seawards from the shoreline. It can have straight or concave shores and multiple beach ridges marking stages in progradation
Dalmatian Coast
a coastline characterized by chains of islands close to the mainland, formed when rising sea levels flood a series of valleys and ridges parallel to the coast
Emergent coast
are stretches along the coast that have been exposed by the sea due to a relative fall in sea levels. This occurs due to either isostasy or eustasy.
Fetch
The distance the wind blows over the surface of the water.
Foreshore
That part of a beach that is exposed by the low tides and submerged by high tides. This area can include many different types of habitats, including steep rocky cliffs, sandy beaches or vast mudflats. Also called intertidal beach
High Energy Coastlines
high energy coast have steep slopes with energetic waves
Littoral Zone
In coastal environments the littoral zone extends from the high water mark, which is rarely inundated, to shoreline areas that are permanently submerged. It always includes this intertidal zone and is often used to mean the same as the intertidal zone.
Low energy coast
A shoreline that is sheltered from large waves and long period waves. Occur in gulfs and behind islands and reefs on the open coast
Near shore
relating to or denoting the region of the sea or seabed relatively close to a shore
offshore
The offshore zone is not well defined. In relation to beach terminology, it is thus not clear if it starts from the littoral zone, from the breaking or from the nearshore zone. In the present context, the offshore zone is defined as the zone off the nearshore zone.
Pasammosere
Most common psammoseres are sand dune systems. In a psammosere, the organisms closest to the sea will be pioneer species.
Raised beach
a former beach now lying above water level owing to geological changes since its formation
Runnel
Ridgesandrunnelsform parallel to the shore line in the foreshore zone.Ridgesare areas of the foreshore that are raised above the adjacent shore which dips into a runnel. The runnels are disrupted by channels that help to drain the water down the beach
Submergent Coast
Submergent coastlines are stretches along the coast that have been inundated by the sea due to a relative rise in sea levels. This occurs due to either isostacy or eustacy
swash
When a wave breaks, water is washed up the beach - this is called the swash