The morphological evolution, hydrodynamics and sediment dynamics of the lower Ebro are studied from historical and current data in order to determine the main changes that have governed the evolution of the Ebro channel near the river mouth during the last few centuries. The evolution of the mouth of this river during the last 2000-years, from an estuary to a delta, is interpreted as a process that has been accelerated by human land management. However, an inverse trend has been observed during recent decades: (1) the river mouth has been affected by erosion due to a drastic decrease in the river sediment discharge, and (2) the lower Ebro tends to evolve towards a quasi-permanent salt-wedge estuary as a consequence of the decrease in the river water discharge. Freshwater and sediment discharge decreases are mainly related to intense river water management during this century. The salt wedge favours erosion in the river banks, widening the river channel and causing an aggradational trend in the lower Ebro. Accretion-erosion rates and the sediment budget in the river mouth are estimated for different conditions.
This is a preview of subscription content, log in via an institution to check access.
Access this article Subscribe and saveSpringer+ Basic
€34.99 /Month
Price includes VAT (Germany)
Instant access to the full article PDF.
Similar content being viewed by others Explore related subjectsDiscover the latest articles and news from researchers in related subjects, suggested using machine learning. Author information Authors and AffiliationsInstituto de Ciencias del Mar (C.S.I.C.), Paseo Joan de Borbo s/n 08039 Barcelona, Spain, , , , , , ES
J. Guillén & A. Palanques
Received: 13 November 1995 · Accepted: 17 June 1996
About this article Cite this articleGuillén, J., Palanques, A. A historical perspective of the morphological evolution in the lower Ebro river. Environmental Geology 30, 174–180 (1997). https://doi.org/10.1007/s002540050144
Issue Date: April 1997
DOI: https://doi.org/10.1007/s002540050144
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4