On the morphological evolution of restored banks: Case study of the Meuse river
In recent years, many riverbanks in Europe had their protections removed to reactivate natural erosion processes and improve riparian habitats. Yet, other river functions may be affected, such as navigation and flood conveyance. The quantification and prediction of erosion rates and volumes is then...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20184002021 |
| _version_ | 1818460998830391296 |
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| author | Duró Gonzalo Crosato Alessandra Kleinhans Maarten Uijttewaal Wim |
| author_facet | Duró Gonzalo Crosato Alessandra Kleinhans Maarten Uijttewaal Wim |
| author_sort | Duró Gonzalo |
| collection | DOAJ |
| description | In recent years, many riverbanks in Europe had their protections removed to reactivate natural erosion processes and improve riparian habitats. Yet, other river functions may be affected, such as navigation and flood conveyance. The quantification and prediction of erosion rates and volumes is then relevant to manage and control the integrity of all river functions. This work studies the morphological evolution of riverbanks along two restored reaches of the Meuse River in the Netherlands, which are taken as case studies. This river is an important navigation route and for this its water level is strongly regulated with weirs. Through aerial photographs and two airborne LIDAR surveys, we analysed the evolution over nine years of restoration and reconstructed the topography along 2.2 km. of banks. An extraordinary low-water level after a ship accident provided the opportunity to observe and measure the bank toe. The banks show a terrace of erosion close to the normally regulated water level, highly irregular erosion rates up to 7 m/year, embayments evolving with upstream and downstream shifts, and sub-reaches with uniform erosion. Probable causes of erosion include ship-waves, high water flows and water level fluctuations. Distinct patterns might be explained by the presence of riparian trees and soil strata of different compositions. These intriguing case studies will continue to be studied to disentangle the role of different erosion drivers, predict erosion magnitudes and establish whether bank erosion will stop or continue in the future. |
| first_indexed | 2024-12-14T23:39:09Z |
| format | Article |
| id | doaj.art-a2ce7133e043473394aeb82101cdd48b |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-14T23:39:09Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-a2ce7133e043473394aeb82101cdd48b2022-12-21T22:43:33ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01400202110.1051/e3sconf/20184002021e3sconf_riverflow2018_02021On the morphological evolution of restored banks: Case study of the Meuse riverDuró GonzaloCrosato AlessandraKleinhans MaartenUijttewaal WimIn recent years, many riverbanks in Europe had their protections removed to reactivate natural erosion processes and improve riparian habitats. Yet, other river functions may be affected, such as navigation and flood conveyance. The quantification and prediction of erosion rates and volumes is then relevant to manage and control the integrity of all river functions. This work studies the morphological evolution of riverbanks along two restored reaches of the Meuse River in the Netherlands, which are taken as case studies. This river is an important navigation route and for this its water level is strongly regulated with weirs. Through aerial photographs and two airborne LIDAR surveys, we analysed the evolution over nine years of restoration and reconstructed the topography along 2.2 km. of banks. An extraordinary low-water level after a ship accident provided the opportunity to observe and measure the bank toe. The banks show a terrace of erosion close to the normally regulated water level, highly irregular erosion rates up to 7 m/year, embayments evolving with upstream and downstream shifts, and sub-reaches with uniform erosion. Probable causes of erosion include ship-waves, high water flows and water level fluctuations. Distinct patterns might be explained by the presence of riparian trees and soil strata of different compositions. These intriguing case studies will continue to be studied to disentangle the role of different erosion drivers, predict erosion magnitudes and establish whether bank erosion will stop or continue in the future.https://doi.org/10.1051/e3sconf/20184002021 |
| spellingShingle | Duró Gonzalo Crosato Alessandra Kleinhans Maarten Uijttewaal Wim On the morphological evolution of restored banks: Case study of the Meuse river E3S Web of Conferences |
| title | On the morphological evolution of restored banks: Case study of the Meuse river |
| title_full | On the morphological evolution of restored banks: Case study of the Meuse river |
| title_fullStr | On the morphological evolution of restored banks: Case study of the Meuse river |
| title_full_unstemmed | On the morphological evolution of restored banks: Case study of the Meuse river |
| title_short | On the morphological evolution of restored banks: Case study of the Meuse river |
| title_sort | on the morphological evolution of restored banks case study of the meuse river |
| url | https://doi.org/10.1051/e3sconf/20184002021 |
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