GeoLog

coastal erosion

Imaggeo On Monday: Tides at Young Sound

May 10, 2021
Imaggeo On Monday: Tides at Young Sound
Tides at Young Sound. Credit: Maria Scheel (distributed via imaggeo.egu.eu)

The work of the autumn tides at Young Sound, Northeast Greenland, created a fine sand artwork just before the freezing in of the fjord with the approaching winter. Due to the changing sediment of the nearby Zackenberg river, the local coastal erosion is an object of great recent investigations.   Description by Maria Scheel, after the description on imaggeo.egu.eu.   Imaggeo is the EGU’s ...[Read More]

Imaggeo On Mondays: Natural Arch

June 15, 2020
Imaggeo On Mondays: Natural Arch
Natural Arch. Credit: Alicia Morugán (distributed via imaggeo.egu.eu)

This natural arch named Pirulico’s tower is located in Mojácar, situated in the south east of the Province of Almería (Andalucia) in southern Spain. A natural arch, natural bridge or, less commonly, a rock arch is a natural rock formation where a rock arch forms, with an opening underneath.   Most natural arches form as a narrow bridge, walled by cliffs, become narrower from erosion, wi ...[Read More]

Geosciences Column: Do coastlines have memories?

January 6, 2017
do coastlines have memories
Man O' War Cove Credit: Sarah Weick, (distributed via imaggeo.egu.eu

Did you know that the shape of coastlines is determined by the angle at which waves crash against the shoreline. It has long been thought that fluctuations in the wave incidence angle are rapidly felt by coastlines, which change the shapes of their shores quickly in response to shifting wave patterns. Or do they? Researchers at the British Geological Survey, Duke University (USA) and Woods Hole Oc ...[Read More]

Imaggeo on Mondays: Coastal erosion

August 15, 2016
Imaggeo on Mondays: Coastal erosion
Stabilising dune vegetation . Credit: James Terry (distributed via imaggeo.egu.eu)

Coastlines take a battering from stormy seas, gales, windy conditions and every-day wave action. The combined effect of these processes shapes coastal landscapes across the globe. In calm weather, constructive waves deposit materials eroded elsewhere and transported along the coast line via longshore-drift, onto beaches, thus building them up. Terrestrial material, brought to beaches by rivers and ...[Read More]