Sutton-Grier, A. E., Wowk, K. & Bamford, H. Future of our coasts: the potential for natural and hybrid infrastructure to enhance the resilience of our coastal communities, economies and ecosystems. Environ. Sci. Policy 51, 137–148 (2015).
Holman, R., Stanley, J. & Ozkan-Haller, T. Applying video sensor networks to nearshore environment monitoring. IEEE Pervas. Comput. 2(4), 14–21 (2003).
He, Q. & Silliman, B. R. Climate change, human impacts, and coastal ecosystems in the anthropocene. Curr. Biol. 29(19), R1021–R1035. https://doi.org/10.1016/j.cub.2019.08.042 (2019).
Wong, P. P. et al. Coastal systems and low-lying areas. In: Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Field, C. B. et al., eds.), 361–409 (Cambridge University Press, 2014).
Un-Habitat. State of the World’s Cities 2010/11: Cities for All: Bridging the Urban Divide 1st edn. (Routledge, 2008). https://doi.org/10.4324/9781849774864.
Tanner, T. et al. Political economy of climate compatible development: artisanal fisheries and climate change in Ghana. In Making Climate Compatible Development Happen (ed. Nunan, F.) (Routledge, 2017).
Sakyi, E. M., Jia, C., Ampofo-Yeboah, A. & Aglago, A. Fish smoking in Ghana: A review. J. Fish. Sci. 13(3), 013–024 (2019).
Adeyeye, S. A. O. & Oyewole, O. B. An overview of traditional fish smoking in Africa. J. Culinary Sci. Technol. 14(3), 198–215 (2016).
Jonah, F. E., Adjei-Boateng, D., Agbo, N., Mensah, E. A. & Edziyie, R. E. Assessment of sand and stone mining along the coastline of Cape Coast, Ghana. Ann. GIS 21(3), 223. https://doi.org/10.1080/19475683.2015.1007894 (2015).
Saarinen, J., Fitchett, J. & Hoogendoorn, G. Climate Change and Tourism in Southern Africa 1st edn. (Routledge, 2022). https://doi.org/10.4324/9781003102618.
Atanga, R. & Tichaawa, T. M. Risk of floods impacting tourism in the coastal cities of West Africa. Sustain. Urban Tour. Sub-Saharan Afr. https://doi.org/10.4324/9781003024293-14 (2020).
Alves, B., Angnuureng, D. B., Morand, P. & Almar, R. A review on coastal erosion and flooding risks and best management practices in West Africa: What has been done and should be done. J. Coast. Conserv. 24, 38. https://doi.org/10.1007/s11852-020-00755-7 (2020).
Croitoru, L., Miranda, J. J. & Sarraf, M. The cost of coastal zone degradation in West Africa: Benin, Côte d’ivoire, Senegal and Togo. (The World Bank Group, 2019). https://www.worldbank.org/en/region/afr/publication/west-africas-coast-losing-over-38-billion-a-year-to-erosion-flooding-and-pollution.
Feka, N. Z. & Ajonina, G. Drivers causing decline of mangrove in West-Central Africa: A review. Int. J. Biodivers. Sci. Ecosyst. Serv. Manage. 7(3), 230. https://doi.org/10.1080/21513732.2011.634436 (2011).
IPCC Climate change 2007: Impacts, adaptation and vulnerability. In Contributing of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (eds Parry, M. L. et al.) (Cambridge University Press, 2007).
Luijendijk, A. et al. The state of the world’s beaches. Sci. Rep. 8(1), 1–11 (2018).
Vousdoukas, M. I. et al. African heritage sites threatened as sea-level rise accelerates. Nat. Clim. Chang. 12, 256–262 (2022).
Guerrera, F., Martín-Martín, M., Tramontana, M., Nimon, B. & Kpémoua, K. E. Shoreline changes and coastal erosion: the case study of the coast of Togo (Bight of Benin, West Africa Margin). Geosciences 11, 40 (2021).
Aman, A. et al. Physical forcing induced coastal vulnerability along the Gulf of Guinea. J. Environ. Prot. 10, 1194–1211 (2019).
Dada, O. et al. Seasonal shoreline behaviours along the arcuate niger delta coast: Complex interaction between fluvial and marine processes. Cont. Shelf Res. 122, 51–67 (2016).
Almar, R. et al. Response of the Bight of Benin (Gulf of Guinea, West Africa) coastline to anthropogenic and natural forcing, part 1: Wave climate variability and impacts on the longshore sediment transport. Cont. Shelf Res. 110, 48–59 (2015).
Nicholson, S. E. Climatic and environmental change in Africa during the last two centuries. Clim. Res. 17, 123–144 (2001).
Hzami, A. et al. Alarming coastal vulnerability of the deltaic and sandy beaches of North Africa. Sci. Rep. 11, 2320. https://doi.org/10.1038/s41598-020-77926-x (2021).
Amrouni, O., Hzami, A. & Heggy, E. Photogrammetric assessment of shoreline retreat in North Africa: anthropogenic and natural drivers. ISPRS J. Photogram. Remote Sens. 157C, 73–92 (2019).
Fossi, F. Y., Pouvreau, N., Brenon, I., Onguéné, R. & Etame, J. Evolution du trait de côte de la façade Sud de Cap Cameroun dans l’estuaire du Wouri (Cameroun). J. Sci. https://doi.org/10.13140/RG.2.2.34611.48162 (2018).
Abessolo, O. G. et al. Assessment of the evolution of Cameroon coastline: An overview from 1986 to 2015. J. Coastal Res. 81, 122–129 (2018).
Cawthra, H. C. & Zyl, F. W. V. Projected inundations on the South African coast by tsunami waves. S. Afr. J. Geom. 4, 2. https://doi.org/10.4314/sajg.v4i2 (2015).
Theron, A. K. & Rossouw, M. Analysis of potential coastal zone climate change impacts and possible response options in the southern African region. In: Science real and relevant, 2nd CSIR Biennial Conference, CSIR International Convention Centre Pretoria (2008).
Shaghude, Y. W., Mburu, J. W. & Arthurton, R. S. Shoreline Change in Tanzania and Kenya: A Manual for Assessment and Design of Mitigation Strategies (WIOMSA, 2015).
Anthony, E. et al. Response of the Bight of Benin (Gulf of Guinea, West Africa) coastline to anthropogenic and natural forcing, Part 2: Sources and patterns of sediment supply, sediment cells, and recent shoreline change. Cont. Shelf Res. 173, 93–103 (2019).
Almar, R. et al. The Grand Popo beach 2013 experiment, Benin, West Africa: from short timescale processes to their integrated impact over long-term coastal evolution. J. Coastal Res. 70, 651–656 (2014).
Tano, R. A. et al. Assessment of the ivorian coastal vulnerability. J. Coastal Res. 32(6), 1495–1503 (2016).
Abessolo, O. G., Hoan, L. X., Larson, M. & Almar, R. Modeling the Bight of Benin (Gulf of Guinea, West Africa) coastline response to natural and anthropogenic forcing. Reg. Stud. Mar. Sci. 48, 101995. https://doi.org/10.1016/j.rsma.2021.101995 (2021).
Giardino, A. et al. A quantitative assessment of human interventions and climate change on the West African sediment budget. Ocean Coast. Manage. 156, 249–265 (2018).
Ndour, A. et al. On the natural and anthropogenic drivers of the Senegalese (West Africa) low coast evolution: Saint Louis beach 2016 COASTVAR experiment and 3D modeling of short term coastal protection measures. J. Coastal Res. 95, 583–587 (2020).
Bergsma, E. W. J. & Almar, R. Coastal coverage of ESA’ Sentinel 2 mission. Adv. Space Res. 65(11), 2636–2644 (2020).
Almar, R. et al. Coastal zone changes in West Africa: Challenges and opportunities for satellite earth observations. Surv. Geophys. 1, 1–27 (2022).
Woodworth, P. L., Aman, A. & Aarup, T. Sea level monitoring in Africa. Afr. J. Mar. Sci. 29(3), 321–330 (2007).
Almar, R. et al. Video-based detection of shorelines at complex meso–macro tidal beaches. J. Coastal Res. 28(5), 1040–1048 (2012).
Pianca, C., Holman, R. A. & Siegle, E. Shoreline variability from days to decades: Results of long-term video imaging. J. Geophys. Res. Oceans 120, 2159–2178 (2015).
Osorio, A. F., Medina, R. & Gonzalez, M. An algorithm for the measurement of shoreline and intertidal beach profiles using video imagery: PSDM. Comput. Geosci. 46, 196–207 (2012).
Holman, R. A., Plant, N. & Holland, T. cbathy: A robust algorithm for estimating nearshore bathymetry. J. Geophys. Res. Oceans 118, 2595–2609 (2013).
Bergsma, E. W. J. & Almar, R. Video-based depth inversion techniques, a method comparison with synthetic cases. Coast. Eng. 138, 199–209 (2018).
Abessolo, G. O. et al. Beach adaptation to intraseasonal sea level changes. Environ. Res. Commun. 2, 051003. https://doi.org/10.1088/2515-7620/ab8705 (2020).
Abessolo, G. O. et al. Sea level at the coast from video-sensed waves: Comparison to tidal gauges and satellite altimetry. J. Atmos. Oceanic Tech. 36, 1591–1603 (2019).
Thuan, D. H., Almar, R., Marchesiello, P. & Viet, N. T. Video sensing of nearshore bathymetry evolution with error estimate. J. Mar. Sci. Eng. 7, 233. https://doi.org/10.3390/jmse7070233 (2019).
Radermacher, M., Van Wengrove, M. E., Thiel de Vries, J. S. M. & Holman, R. A. Applicability of video-derived bathymetry estimates to nearshore current model predictions. J. Coastal Res. 70, 290–295 (2014).
Abessolo, O. G. et al. Potential of video cameras in assessing event and seasonal shoreline behaviour: A case study at Grand Popo, Benin (Gulf of Guinea). J. Coastal Res. 75, 442–446 (2016).
Abessolo, O. G. et al. Beach response to wave forcing from event to inter-annual time scales at Grand Popo, Benin (Gulf of Guinea). Water 9, 447. https://doi.org/10.3390/w9060447 (2017).
Abessolo, O. G. et al. Development of a West and Central Africa regional video camera network to monitor coastal response to multi-scale ocean forcing. In Proceedings of Coastal Dynamics, University of Copenhagen, 1540–1550 (2017).
Larson, M., Hoan, L. X. & Hanson, H. A direct formula to compute wave properties at incipient breaking. J. Waterw. Port Coast. Ocean Eng. 136(2), 119–122 (2010).
Abessolo, O. G., Almar, R., Bonou, F. & Bergsma, E. J. Error proxies in video-based depth inversion: Temporal celerity estimation. J. Coastal Res. 95, 1101–1105 (2020).
Abessolo, O. G. et al. Wave influence on altimetry sea level at the coast. Coast. Eng. 180, 104275. https://doi.org/10.1016/j.coastaleng.2022.104275 (2022).
Melet, A. et al. Contribution of wave setup to projected coastal sea level changes. J. Geophys. Res. Oceans 125, e016078. https://doi.org/10.1029/2020JC016078 (2020).
Pugh, D. T. & Woodworth, P. L. Sea-Level Science: Understanding Tides, Surges, Tsunamis and Mean Sea-Level Changes (Cambridge University Press, 2014). https://doi.org/10.1017/CBO9781139235778.
Marti, F. et al. Altimetry-based sea level trends along the coasts of western Africa. Adv. Space Res. 68(2), 504–522 (2021).
Almar, R., Blenkinsopp, C., Almeida, L. P., Cienfuegos, R. & Catalán, P. A. Wave runup video motion detection using the Radon Transform. Coast. Eng. 130, 46–51 (2017).
Bonou, F. et al. Shoreline and beach cusps dynamics at the low tide terraced Grand Popo beach, Bénin (West Africa): A statistical approach. J. Coastal Res. 81, 138–144 (2018).
Mingo, I. M., Almar, R. & Lacaze, L. Surf and swash dynamics on low tide terrace beaches. Coasts 1, 73–89 (2021).
Angnuureng, D. B., Addo, K. A., Almar, R. & Dieng, H. Influence of sea level variability on a micro-tidal beach. Nat. Hazards 68, 1611–1628. https://doi.org/10.1007/s11069-018-3370-4 (2018).
Castelle, B. et al. Rip currents and circulation on a high-energy low-tide-terraced beach (Grand Popo, Benin, West Africa). J. Coastal Res. 70, 633–638 (2014).
Floc’h, F. et al. Flash rip statistics from video images. J. Coastal Res. 81, 100–106 (2018).
Almar, R., Larnier, S., Castelle, B., Scott, T. & Floc’h, F. On the use of the Radon transform to estimate longshore currents from video imagery. Coast. Eng. 114, 301–308 (2016).
Marchesiello, P. et al. On eddy-mixed longshore currents: Video observation and 3D modeling off Grand Popo Beach, Benin. J. Coastal Res. 75, 408–412. https://doi.org/10.2112/SI75-082.1 (2016).
Marchesiello, P. et al. Tridimensional nonhydrostatic transient rip currents in a wave-resolving model. Ocean Model 163, 1463–5003 (2021).
Derian, P. & Almar, R. Wavelet-based optical flow estimation of instant surface currents from shore-based and UAV videos. IEEE Trans. Geosci. Remote Sens. 50(10), 5790–5797 (2017).
Angnuureng, D. B. et al. Assessing the challenges of beach quality: The perspective of beach users in Elmina, Ghana. J. Fish. Coastal Manag. 2, 41–55 (2020).
Angnuureng, D. B. et al. Satellite, drone and video camera multi-platform monitoring of coastal erosion at an engineered pocket beach: A showcase for coastal management at Elmina Bay, Ghana (West Africa). Reg. Stud. Mar. Sci. 53(4), 102437. https://doi.org/10.1016/j.rsma.2022.102437 (2022).
Angnuureng, D. B. et al. Application of shore-based video and unmanned aerial vehicles (drones): complementary tools for beach studies. Remote Sens. 12, 394–413 (2020).
Taveneau, A. et al. Observing and predicting coastal erosion at the Langue de Barbarie sand spit around Saint Louis (Senegal, West Africa) through satellite-derived digital elevation model and shoreline. Remote Sens. 13, 2454. https://doi.org/10.3390/rs13132454 (2021).
Dada, O., Almar, R., Morand, P. & Ménard, F. Towards West African coastal social-ecosystems sustainability: Interdisciplinary approaches. Ocean Coastal Manag. 211, 105746. https://doi.org/10.1016/j.ocecoaman.2021.105746 (2021).
Davidson, M. et al. The CoastView project: Developing video-derived coastal state indicators in support of coastal zone management. Coast. Eng. 54(6–7), 463–475 (2007).
Franks, J. S., Johnson, D. R. & Ko, D. S. Pelagic sargassum in the tropical North Atlantic. Gulf Caribbean Res. 27(1), 6–11. https://doi.org/10.18785/gcr.2701.08 (2016).
Wang, M. & Hu, C. Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations. Remote Sens. Environ. 183, 350–367 (2016).
Andriolo, U. Nearshore hydrodynamics and morphology derived from video imagery. Ph.D. dissertation, Faculty of Sciences, University of Lisbon (2018).
Holland, K. T., Holman, R. A., Lippmann, T. C., Stanley, J. & Plant, N. Practical use of video imagery in nearshore oceanographic field studies. IEEE J. Oceanic Eng. 22(1), 81–92 (1997).
Holland, K. T. & Holman, R. A. The statistical distribution of swash maxima on natural beaches. J. Geophys. Res. 98, 10271–10278 (1993).
Heikkila, J. & Silven, O. A four-step camera calibration procedure with implicit image correction. In Computer Vision and Pattern Recognition, 1997, Proceedings, 1997 IEEE Computer Society Conference, 1106–1112 (1997).
Bergsma, E. W. J., Conley, D. C., Davidson, M. A. & O’Hare, T. J. Videobased nearshore bathymetry estimation in macro-tidal environments. Mar. Geol. 374, 31–41 (2016).
Bouvier, C., Balouin, Y., Castelle, B. & Holman, R. A. Modelling camera viewing angle deviation to improve nearshore video monitoring. Coast. Eng. 147, 99–106 (2019).
Almar, R. et al. A new breaking wave height direct estimator from video imagery. Coast. Eng. 61, 42–48 (2012).
Almar, R. et al. On the use of the radon transform in studying nearshore wave dynamics. Coast. Eng. 92, 24–30 (2014).
Holman, R. & Bergsma, E. W. J. Updates to and performance of the cBathy algorithm for estimating nearshore bathymetry from remote sensing imagery. Remote Sens. 13, 3996. https://doi.org/10.3390/rs13193996 (2021).
Birol, F. et al. Coastal applications from nadir altimetry: Example of the X-TRACK regional products. Adv. Space Res. 59(4), 936–953 (2017).