RT journal article
T1 The Mediterranean Coast of Andalusia (Spain): Medium-Term Evolution and Impacts of Coastal Structures
A1 Molina, Rosa
A1 Anfuso Melfi, Giorgio
A1 Manno, Giorgio
A1 Gracia Prieto, Francisco Javier
A2 Ciencias de la Tierra
K1 coastal evolution; DSAS; groin; port; pocket beach; river delta
K1 coastal evolution
K1 DSAS
K1 port
K1 pocket beach
K1 river delta
AB This paper shows coastal evolution along the Andalusia Region (Spain) and theimpacts on it of coastal structures. The study area was divided into 47 units to calculate theerosion/accretion/stability (or evolution) rates by using the DSAS extension of ArcGIS software.Evolution rates were divided into different classes from “Very high accretion” to “Very high erosion”.As a result, 9 units recorded accretion, 19 stability and 19 erosion. Further, 17 units presenteda positive balance and 28 units a negative one, showing a negative net balance of 29,738.4 m2/yearcorresponding to the loss of 1784.30 km2 of beach surface in the 1956–2016 period. The distribution ofevolution areas along the studied coast was carried out by means of the “R” project for statisticalcomputing. The analysis evidenced the impact of rigid structures: accretion was essentiallyobserved up-drift of ports and groins and in correspondence of protection structures, especiallyof breakwaters. Erosion classes were observed down-drift of ports and groins and in correspondenceof revetments/seawalls, and at largest river deltas, and “stability” was observed at pocket beachesand coastal areas locally stabilized by protection structures. Last, results were used to determine thedistribution of swash- and drift-aligned coastal sectors and main direction of sedimentary transport.
PB MDPI
SN 2071-1050
YR 2019
FD 2019-07
LK http://hdl.handle.net/10498/21698
UL http://hdl.handle.net/10498/21698
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026