Multi-criteria approaches to identify the shoreline retreat downstream of dams: the North African case

Amrouni, Oula; Mahé, Gil

doi:https://doi.org/10.5194/piahs-384-133-2021

Articles | Volume 384

https://doi.org/10.5194/piahs-384-133-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/piahs-384-133-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 384

Pre-conference publication

|

16 Nov 2021

Pre-conference publication |

| 16 Nov 2021

Multi-criteria approaches to identify the shoreline retreat downstream of dams: the North African case

Oula Amrouni and Gil Mahé

Data sets

Comprehensive Ocean-Atmosphere Data Set COADS https://shen.sdsu.edu/researchgroup/coads.htm

Short summary

Our multidisciplinary study reveals an alarming trend of beach retreat reaching −20 m ± 0.15 m yr⁻¹ after the human-induced change over the hydrological network where ~ 50 % of sediment discharge has been trapped upstream the dams. Accros the semi arid north African coasts, the rapid shoreline retreat is due to the decreasing of sediment fluvial discharge trapped by the dam infrastrcture.