@article{fdi:010088205, title = {{C}oastal flooding caused by extreme coastal water level at the world heritage historic {K}eta {C}ity ({G}hana, {W}est {A}frica)}, author = {{B}rempong, {E}. {K}. and {A}lmar, {R}afa{\¨e}l and {A}ngnuureng, {D}. {B}. and {M}attah, {P}. {A}. {D}. and {J}ayson-{Q}uashigah, {P}. {N}. and {A}ntwi-{A}gyakwa, {K}. {T}. and {C}haruka, {B}.}, editor = {}, language = {{ENG}}, abstract = {{L}ike low-lying sandy coasts around the world, the {G}hanaian coast is experiencing increasingly frequent coastal flooding due to climate change, putting important socioeconomic infrastructure and people at risk. {O}ur study assesses the major factors contributing to extreme coastal water levels ({ECWL}s) from 1994 to 2015. {ECWL}s are categorized into low, moderate, and severe levels corresponding to the 30th, 60th, and 98th percentiles, respectively. {U}sing these three levels over the {P}leiades satellite-derived digital elevation model topography, potential flood extent zones are mapped. {ECWL}s have the potential to flood more than 40% of the study area, including socioeconomically important sites such as tourist beach resorts, {C}ape {S}t. {P}aul lighthouse, and {F}ort {P}rinzenstein. {I}n this study, all coastal flooding events recorded by the municipality of {K}eta fall within the 98th percentile category. {O}ur results show a gradual increase in the frequency of flooding over the years. {F}looding events are caused by a compound effect of the tide, sea level anomaly, waves, and atmospheric conditions. {F}inally, while wave run-up is the major contributor to coastal flooding, the tide is the one varying most, which facilitates a simple early warning system based on waves and tide but adds uncertainty and complicates long-term predictability.}, keywords = {{G}ulf of {G}uinea ; wave run-up ; sea level rise ; coastal flooding ; {GHANA} ; {GOLFE} {DE} {GUINEE} ; {VOLGA} {DELTA}}, booktitle = {}, journal = {{J}ournal of {M}arine {S}cience and {E}ngineering}, volume = {11}, numero = {6}, pages = {1144 [18 p.]}, year = {2023}, DOI = {10.3390/jmse11061144}, URL = {https://www.documentation.ird.fr/hor/fdi:010088205}, }