RT journal article
T1 Study and Evolution of the Dune Field of La Banya Spit in Ebro Delta (Spain) Using LiDAR Data and GPR
A1 Rodríguez-Santalla, Inmaculada
A1 Gomez-Ortiz, David
A1 Martín-Crespo, Tomás
A1 Sánchez-García, María José
A1 Montoya-Montes, Isabel
A1 Martín-Velázquez, Silvia
A1 Barrio, Fernando
A1 Serra, Jordi
A1 Ramírez-Cuesta, Juan Miguel
A1 Gracia Prieto, Francisco Javier
A2 Ciencias de la Tierra
K1 coastal dune
K1 foredune
K1 beach ridge
K1 LiDAR data
K1 ground-penetrating radar (GPR)
K1 La Banya spit
K1 Ebro Delta
AB La Banya spit, located at the south of the River Ebro Delta, is a sandy formation, developed by annexation of bars forming successive beach ridges, which are oriented and modeled by the eastern and southern waves. The initial ridges run parallel to the coastline, and above them small dunes developed, the crests of which are oriented by dominant winds, forming foredune ridges and barchans. This study attempted to test a number of techniques in order to understand the dune dynamic on this coastal spit between 2004 and 2012: LiDAR data were used to reconstruct changes to the surface and volume of the barchan dunes and foredunes; ground-penetrating radar was applied to obtain an image of their internal structure, which would help to understand their recent evolution. GPS data taken on the field, together with application of GIS techniques, made possible the combination of results and their comparison. The results showed a different trend between the barchan dunes and the foredunes. While the barchan dunes increased in area and volume between 2004 and 2012, the foredunes lost thickness. This was also reflected in the radargrams: the barchan dunes showed reflectors related to the growth of the foresets while those associated with foredunes presented truncations associated with storm events. However, the global balance of dune occupation for the period 2004-2012 was positive.
PB MDPI
SN 2072-4292
YR 2021
FD 2021-02
LK http://hdl.handle.net/10498/24715
UL http://hdl.handle.net/10498/24715
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 14-nov-2026