Impacts of Protective Structures on Sandy Beaches: Example of the Saly Balnear Station, Petite Côte, Senegal

Natural vs. Anthropic Influence on the Multidecadal Shoreline Changes of Mediterranean Urban Beaches: Lessons from the Gulf of Cagliari (Sardinia)

“…As mentioned before, groynes were built in sector G1 to limit erosion and protect coastal structures from flooding. There is insufficient temporal evidence to appreciate the effect of containment structures over the 64-year analysis, however, given the high EPRs of 2 m per year recorded in this coastal segment, the groynes probably provided little protection from erosion and may have, as scientific evidence suggests, even aggravated the process of erosion along the eastern adjacent parts of the coast [99]. Similar trends were presented in Nassar et al [61] for the north Sinai coast (Egypt), where shoreline analysis revealed increased erosion on the downdrift side of protection structures due to interruption of longshore sediment transports.…”

“…Similar trends were presented in Nassar et al [61] for the north Sinai coast (Egypt), where shoreline analysis revealed increased erosion on the downdrift side of protection structures due to interruption of longshore sediment transports. Groynes are, indeed, the most commonly used coastal defense structure used to stabilize the shoreline on coasts with prevailing longshore sand transport [99,100] and to combat beach erosion [101]. While these structures lead to the progradation of the updrift beach [102], the downdrift beach is eroded, causing detrimental effects and potential threat to tourist activity.…”

“…While these structures lead to the progradation of the updrift beach [102], the downdrift beach is eroded, causing detrimental effects and potential threat to tourist activity. Despite updrift trapping of sediment, the intensification of the sequential erosion of the downdrift shoreline cannot be avoided [99]. Furthermore, the rigid structures have a tendency of reflecting, rather than dissipating, wave energy [9], causing further negative impact on the littoral zone.…”

Meaning in the face of changing climate risks: Connecting agency, sensemaking and narratives of change through transdisciplinary research

“…Fisherfolks are increasingly confronted with changes in resource availability that are sometimes framed as manifestations of climate change. Tourist operators are faced with beach erosion and concerns regarding rainfall and are currently engaged in "adaptative actions" such as protecting their beaches with boulders and redefining the "good " season and their target clientele (Ly 2018, Ngom et al 2018. It is interesting to note that the pressures faced by all these sectors place them on a collision course regarding the use of available space.…”