Publications

2025

Peer reviewed publications

Díaz, L. B., Gulizia, C., Jain, S., Langendijk, G. S., Palanisamy, H., Rabanal, V., Charlton, C. S., Dajuma, A., Donkor, F. K., Egbebiyi, T. S., Kondi Akara, G., Jrrar, A., Siddiqui, M. R., Brahim, Y. A., Angnuureng, B. D., Anschütz, A.-A., Awo, F. M., Builes-Jaramillo, A., Cobb, A., Ghomsi, F. E. K., … Siame, G. (2025). Connecting climate science and society: reflections from early and mid-career researchers at the World Climate Research Programme Open Science Conference 2023. Frontiers in Climate, 6. https://doi.org/10.3389/fclim.2024.1501216

Ghomsi, F. E. K., Erkoç, M. H., Raj, R. P., Pirti, A., Bonaduce, A., Abiodun, B. J., & Stroeve, J. (2025). Sea level trends along the South African coast from 1993 to 2022 using XTRACK altimetry, tide gauges, and GNSS measurements. Scientific Reports, 15(1). https://doi.org/10.1038/s41598-025-89258-9

Pham, L. T., Prasad, K. N. D., Ghomsi, F. E. K., Le-Huy, M., Oliveira, S. P., Nguyen, D. V., Van Tran, K., & Do, T. D. (2025). Mapping structures obscured by sediments of the southern Hanoi basin using gravity data. Earth Science Informatics, 18(3). https://doi.org/10.1007/s12145-025-01809-w

Steffen, R., Sinem Ince, E., Ghomsi, F. E. K., & Thanh Pham, L. (2025). Satellite Gravimetry for Geophysical Purposes. Remote Sensing for Geophysicists, 3–20. https://doi.org/10.1201/9781003485278-2

Pham, L. T., Ghomsi, F. E. K., & Eldosouky, A. M. (2025). Identification of the structural configuration of the Equatorial Atlantic Ridge from satellite-derived gravity data using the enhancement techniques. Advances in Space Research, 75(12), 8425–8438. https://doi.org/10.1016/j.asr.2025.03.066

Ghomsi, F. E. K., Erkoç, M. H., Raj, R. P., Pirti, A., Bonaduce, A., Abiodun, B. J., & Stroeve, J. (2025). Vertical Crustal Movement along the Coast of South Africa. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLVIII-M-6–2025, 393–397. https://doi.org/10.5194/isprs-archives-xlviii-m-6-2025-393-2025

Kwega Ghomsi, S. L., Bisso, D., Ganno, S., Pham, L. T., Tenzer, R., & Ghomsi, F. E. K. (2025). Reassessing tectono-structural units and crustal thickness variations in southwest Cameroon using satellite gravity and seismic data. Journal of African Earth Sciences, 229, 105698. https://doi.org/10.1016/j.jafrearsci.2025.105698

2024

Peer reviewed publications

Alvarez Fanjul, E., Ciliberti, S. A., Pearlman, J. S., Wilmer-Becker, K., Bahurel, P., Ardhuin, F., … & Zufic, R. Promoting Best Practices in Ocean Forecasting through an Operational Readiness Level. Frontiers in Marine Science, 11, 1443284.

Aroucha, L. C., Lübbecke, J. F., Körner, M., Imbol Koungue, R. A., & Awo, F. M. (2024). The influence of freshwater input on the evolution of the 1995 Benguela Niño. Journal of Geophysical Research: Oceans, 129(2), e2023JC020241.

Fotso-Nguemo, T. C., Chouto, S., Nghonda, J. P., Diedhiou, A., Kravitz, B., Yepdo, Z. D., … & Abiodun, B. J. (2024). Projected impact of solar radiation modification geoengineering on water deficit risk over major Central African river basins. Environmental Research Letters, 19(9), 094046.

Halo, I., Raj, R. P., Penven, P., Lamont, T., & Ansorge, I. (2024). Influence of the Madagascar Ridge on Eddy Variability in the Agulhas Current System: A Modelling Study. ESS Open Archive.

Krug, M., Naidoo, A., & Williams, L. (2024). South Africa’s oceans and coastal and information management system towards improved ocean access, protection, and governance. Journal of Environmental Management, 354, 120255.

Maoyi, M. L., & Abiodun, B. J. (2024). Links between the Botswana High and drought modes over southern Africa. International Journal of Climatology.

Naik, M., & Abiodun, B. J. (2024). Modelling the potential of land use change to mitigate the impacts of climate change on future drought in the Western Cape, South Africa. Theoretical and Applied Climatology, 1-22.

Odoulami, R. C., Hirasawa, H., Kouadio, K., Patel, T. D., Quagraine, K. A., Pinto, I., … & New, M. G. (2024). Africa’s climate response to Marine Cloud Brightening strategies is highly sensitive to deployment region. Journal of Geophysical Research: Atmospheres, 129(17), e2024JD041070.

Sawadogo, W., Neya, T., Semde, I., Korahiré, J. A., Combasséré, A., Traoré, D. E., … & Kunstmann, H. (2021
(2024). Potential impacts of climate change on the sudan-sahel region in West Africa–Insights from Burkina Faso. Environmental Challenges, 15, 100860.

Sawadogo, W., Neya, T., Semde, I., Korahiré, J. A., Combasséré, A., Traoré, D. E., … & Kunstmann, H. (2024). Potential impacts of climate change on the sudan-sahel region in West Africa–Insights from Burkina Faso. Environmental Challenges, 15, 100860.

Tomety, F. S., Illig, S., Ostrowski, M., Awo, F. M., Bachèlery, M. L., Keenlyside, N., & Rouault, M. (2024). Long-term climatological trends driving the recent warming along the Angolan and Namibian coasts. Climate Dynamics, 1-20.

Book chapters

Zorita, E., Hünicke, B., Tim, N., & Rouault, M. (2024). Past Climate Variability in the Last Millennium. In Sustainability of Southern African Ecosystems under Global Change: Science for Management and Policy Interventions (pp. 133-147). Cham: Springer International Publishing.

Rouault, M., Dieppois, B., Tim, N., Hünicke, B., & Zorita, E. (2024). Southern Africa climate over the recent decades: description, variability and trends. In Sustainability of Southern African Ecosystems under Global Change: Science for Management and Policy Interventions (pp. 149-168). Cham: Springer International Publishing.

Reports

Kemgang Ghomsi, F. E., Raj, R. P., Bonaduce, A., Halo, I., Nyberg, B., Cazenave, A., … & Johannessen, O. M. (2024). Sea level variability in the Gulf of Guinea from satellite altimetry. Scientific Reports, 14(1), 4759.

Ghomsi, F. E. K., Mohamed, B., Raj, R. P., Bonaduce, A., Abiodun, B. J., Nagy, H., … & Johannessen, O. M. (2024). Exploring steric sea level variability in the Eastern Tropical Atlantic Ocean: a three-decade study (1993–2022). Scientific Reports, 14(1), 20458.

Shabangu, F. W., Munoz, T., Van Uffelen, L., Estabrook, B. J., Yemane, D., Stafford, K. M., … & Lamont, T. (2024). Diverse baleen whale acoustic occurrence around two sub-Antarctic islands: A tale of residents and visitors. Scientific Reports, 14(1), 21663.

MSc THESES

Downscaled Future climate projections for the Southern Benguela – Sivuyisiwe Mbede, Moagabo Ragoasha, Kelly Ortega Cisneros.

A Lagrangian Analysis of Moisture Transport Over the Berg-Olifants and Breede-Gouridz Catchment – Amanda Masilela, Moagabo Ragoasha, Ramontsheng Rapolaki, Sarah Roffe.

2023

Peer reviewed publications

Halo, I., Raj, R. P., Korosov, A., Penven, P., Johannessen, J. A., & Rouault, M. (2023). Mesoscale Variability, Critical Latitude and Eddy Mean Properties in the Tropical South-East Atlantic Ocean. Journal of Geophysical Research: Oceans, 128(3), e2022JC019050. https://doi.org/10.1029/2022JC019050.

Brandt, P., Alory, G., Awo, F. M., Dengler, M., Djakouré, S., Imbol Koungue, R. A., Jouanno, J., Körner, M., Roch, M., & Rouault, M. (2023). Physical processes and biological productivity in the upwelling regions of the tropical Atlantic. Ocean Science, 19(3), 581–601. https://doi.org/10.5194/OS-19-581-2023.

Ullah, A., Pohl, B., Pergaud, J., Dieppois, B., & Rouault, M. (2023). Intraseasonal descriptors and extremes in South African rainfall. Part II: Summer teleconnections across multiple timescales. International Journal of Climatology, 43(8), 3799–3827. https://doi.org/10.1002/JOC.8059.

Mawren, D., Blamey, R., Hermes, J., & Reason, C. J. C. (2023). On the importance of the Mozambique Channel for the climate of southeastern Africa. Climate Dynamics, 60(1–2), 279–299. https://doi.org/10.1007/S00382-022-06334-W/METRICS.

Rautenbach, G., Hermes, J., Halo, I., Morris, T., & Veitch, J. (2023). Wind- and eddy-driven upwelling over submarine canyons inshore of the northern Agulhas Current. African Journal of Marine Science, 45(1), 1–14. https://doi.org/10.2989/1814232X.2022.2163288.

Cronin, M. F., Swart, S., Marandino, C. A., Anderson, C., Browne, P., Chen, S., Joubert, W. R., Schuster, U., Venkatesan, R., Addey, C. I., Alves, O., Ardhuin, F., Battle, S., Bourassa, M. A., Chen, Z., Chory, M., Clayson, C., de Souza, R. B., du Plessis, M., … Yu, L. (2023). Developing an Observing Air–Sea Interactions Strategy (OASIS) for the global ocean. ICES Journal of Marine Science, 80(2), 367–373. https://doi.org/10.1093/ICESJMS/FSAC149.

Andersen, O. B., Rose, S. K., & Hart-Davis, M. G. (2023). Polar Ocean Tides—Revisited Using Cryosat-2. Remote Sensing 2023, Vol. 15, Page 4479, 15(18), 4479. https://doi.org/10.3390/RS15184479.

Hart-Davis, M. G., & Backeberg, B. C. (2023). Towards a particle trajectory modelling approach in support of South African search and rescue operations at sea. Journal of Operational Oceanography, 16(2), 131–139.
https://doi.org/10.1080/1755876X.2021.1911485.

Fearon, G., Herbette, S., Cambon, G., Veitch, J., Meynecke, J. O., & Vichi, M. (2023). The land-sea breeze influences the oceanography of the southern Benguela upwelling system at multiple time-scales. Frontiers in Marine Science, 10, 1186069. https://doi.org/10.3389/FMARS.2023.1186069/BIBTEX.

Tosetto, E. G., Neumann-Leitão, S., Araujo, M., Dimoune, D. M., Bertrand, A., & Nogueira, M. (2023). Amazon River plume habitats shape planktonic cnidarian assemblages in the Western Atlantic. PLOS ONE, 18(8), e0290667. https://doi.org/10.1371/JOURNAL.PONE.0290667.

Dimoune, D. M., Birol, F., Hernandez, F., Léger, F., & Araujo, M. (2023). Revisiting the tropical Atlantic western boundary circulation from a 25-year time series of satellite altimetry data. Ocean Science, 19(2), 251–268. https://doi.org/10.5194/OS-19-251-2023.

Siddiqui, C., Rixen, T., Lahajnar, N., van der Plas, A. K., Louw, D. C., Lamont, T., & Pillay, K. (2023). Regional and global impact of CO2 uptake in the Benguela Upwelling System through preformed nutrients. Nature Communications 2023 14:1, 14(1), 1–11. https://doi.org/10.1038/s41467-023-38208-y.

Chidichimo, M. P., Perez, R. C., Speich, S., Kersalé, M., Sprintall, J., Dong, S., Lamont, T., Sato, O. T., Chereskin, T. K., Hummels, R., & Schmid, C. (2023). Energetic overturning flows, dynamic interocean exchanges, and ocean warming observed in the South Atlantic. Communications Earth & Environment 2023 4:1, 4(1), 1–20. https://doi.org/10.1038/s43247-022-00644-x.

Barlow, R., Lamont, T., Viljoen, J., Airs, R., Brewin, R., Tilstone, G., Aiken, J., Woodward, E., & Harris, C. (2023). Latitudinal variability and adaptation of phytoplankton in the Atlantic Ocean. Journal of Marine Systems, 239, 103844. https://doi.org/10.1016/J.JMARSYS.2022.103844.

Bode-Dalby, M., Würth, R., de Oliveira, L. D. F., Lamont, T., Verheye, H. M., Schukat, A., Hagen, W., & Auel, H. (2023). Small is beautiful: the important role of small copepods in carbon budgets of the southern Benguela upwelling system. Journal of Plankton Research, 45(1), 110–128. https://doi.org/10.1093/PLANKT/FBAC061.

Gouvello, D. Z. M. L., Heye, S., Harris, L. R., Temple-Boyer, J., Gaspar, P., Hart-Davis, M. G., Louro, C., & Nel, R. (2024). Dispersal corridors of neonate sea turtles from dominant rookeries in the Western Indian Ocean. Ecological Modelling, 487, 110542. https://doi.org/10.1016/J.ECOLMODEL.2023.110542.

2022

Peer reviewed publications

Awo, F. M., Rouault, M., Ostrowski, M., Tomety, F. S., Da-Allada, C. Y., & Jouanno, J. (2022). Seasonal cycle of sea surface salinity in the Angola upwelling system. Journal of Geophysical Research: Oceans, 127, e2022JC018518. https://doi.org/10.1029/2022JC018518​.

Fearon, G., S. Herbette, J. Veitch, G. Cambon and M. Vichi (2022): The influence of the land-sea breeze on coastal upwelling systems: locally forced vs internal wave vertical mixing and implications for thermal fronts. Ocean Modelling, 176, 176. https://doi.org/10.1016/j.ocemod.2022.102069​.

Oliver, B., Veitch, J., & Reason, C. J. C.(2022). Variability in high wave energy events around the southern African coast. Journal of Geophysical Research: Oceans, 127, e2021JC018255.
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Pomalegni, Y. W., Da-Allada, C. Y., Sohou, Z., Baloïtcha, E., Alamou, E. A., Longandjo G.N , … & Irvine, P. J. (2022). Response of the Equatorial Atlantic Cold Tongue to Stratospheric Aerosol Geoengineering. Aerosol Science and Engineering, 1-12. https://doi.org/10.1007/s41810-021-00127-0.

Pfaff, M., M. Hart-Davies, M.E. Smith, J. Veitch (2022): A new model-based coastal retention index (CORE) identifies bays as hotspots of retention, biological production and cumulative anthropogenic pressures. Estuarine, Coastal and Self Science, 273.
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Rouault M and S Tomety. The impact of ENSO on the Benguela upwelling, Journal of Physical Oceanography. 52(10), 2573-2587. https://doi.org/10.1175/JPO-D-21-0219.1.

Toolsee T and Lamont T. (2022). Long-Term Trends and interannual variability of wind forcing, surface circulation, and temperature around the Sub-Antarctic Prince Edward Islands. Remote Sensing, 14:1318.
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Russo, C.S., Veitch, J., Carr, M., Fearon, G. & Whittle, C. An intercomparison of global reanalysis products for southern Africa’s major oceanographic features., 9:837906. https://doi.org/10.3389/fmars.2022.837906.

Van Niekerk, L.; Lamberth, S.J.; James, N.C.; Taljaard, S.; Adams, J.B.; Theron, A.K.; Krug, M.: The Vulnerability of South African Estuaries to Climate Change: A Review and Synthesis. Diversity 2022, 14, 697. https://doi.org/10.3390/d14090697.

2021

Peer reviewed publications

Carr, M., Lamont, T. and Krug, M., (2021) Satellite Sea Surface Temperature Product Comparison for the Southern African Marine Region. , (7), p.1244.

Chenillat, F., Illig, S., Jouanno, J., Awo, F. M., Alory, G., Brehmer, P., (2021) How do climate modes shape the chlorophyll‐ a interannual variability in the tropical Atlantic?, GRL, https://doi.org/10.1029/2021GL093769.

Hart-Davis, M.G. and Backeberg, B.C., 2021. Towards a particle trajectory modelling approach in support of South African search and rescue operations at sea. Journal of Operational Oceanography, https://doi.org/10.1080/1755876X.2021.1911485.

Imbol Nkwinkwa Njouodo A S, Mathieu Rouault, Noel Keenlyside, Shunya Koseki (2021) Impact of the Agulhas Current on southern Africa precipitation: a modelling study. In press Journal of Climate.

Toolsee, T, Lamont T., Ansorge A. and Rouault M. (2021). Characterising the seasonal cycle of wind forcing, surface circulation and temperature around the sub-Antarctic Prince Edward Islands, African Journal of Marine Science. 43(1), pp.61-76. https://doi.org/10.2989/1814232X.2021.1873858.

​Lyttle, Casey, Rautenbach, Christo, Backeberg, Bjorn and Jarre, Astrid. (2021). An analysis of high-resolution modelled wave heights along the South African south coast suggests recent deterioration of sea state. Fisheries Oceanography. 10.1111/fog.12551. http://dx.doi.org/10.1111/fog.12551.

Lyttle, C., C. Rautenbach, B. Backeberg and A. Jarre An analysis of high-resolution modelled wave heights along the South African south coast suggests recent deterioration of sea state, Fisheries Oceanography, 30(6), pp.679-696.
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Nhantumbo, B., B. C. Backeberg, J. E. O. Nilsen and C. J. C. Reason (2021). Atmospheric and Climatic Drivers of Tide Gauge Sea Level Variability along the East and South Coast of South Africa. Journal of Marine Science and Engineering, 9, 9, https://doi.org/10.3390/jmse9090924.

Ramanantsoa, J. D., Penven, P., Raj, R.P., Renault, L., Ponsoni, L., Ostrowski,M., A. F. Dilmahamod and M. Rouault (2021). Where and how the East Madagascar Current retroflection originates? Journal of Geophysical Research: Oceans, 126, e2020JC016203.
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Van der Lubbe, H.J.L., Hall, I.R., Barker, S., Hemming, S.R., Baars, T.F., Starr, A., Just, J., Backeberg, B.C. and Joordens, J.C.A., 2021. Indo-Pacific Walker circulation drove Pleistocene African aridification. Nature, 598 (7882), pp.618-623. https://doi.org/10.1029/2020JC016203.

BOOKS

Ocean, Weather and Climate: Science to the Service of Society. Proceedings of the Nansen-Tutu Centre 10th Anniversary Symposium, 10-12 March 2020, Cape Town, South Africa. Editors: M Rouault, JA Johannessen, A Samuelsen and B Backeberg. ISBN: 978-1-77634-359-1, 2021.

2020

Peer reviewed publications

Bachèlery, ML., S. Illig and M. Rouault. Interannual Coastal Trapped Waves in the Angola-Benguela Upwelling System and Benguela Niño and Niña events. Journal of Marine Systems, 203:103262 (1-16)

Braby L, Backeberg, B, Krug M and Reason CJC. (2020). Quantifying the impact of wind‐current feedback on mesoscale variability in forced simulation experiments of the Agulhas Current using an eddy‐tracking algorithm. Journal of Geophysical Research: Oceans, 125, e2019JC015365. (1-23)

​Cedras, R.B., Halo, I. and Gibbons, M.J., 2020. Biogeography of pelagic calanoid copepods in the Western Indian Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, p.104740.

Da-Allada, C. Y., Baloïtcha, E., Alamou, E. A., Awo, F. M., Bonou, F., Pomalegni, Y., & Irvine, P. J. Changes in West African Summer Monsoon recipitation under Stratospheric Aerosol Geoengineering. Earth’s Future, e2020EF001595
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Fearon, G., Herbette, S., Veitch, J.,Cambon, G., Lucas, A. J., Lemarié, F., and Vichi, M. (2020). Enhanced vertical mixing in coastal upwelling systems driven by diurnal‐inertial resonance: Numerical experiments. Journal of Geophysical Research: Oceans, 125, e2020JC016208. https://doi.org/10.1029/2020JC016208.

Flynn, R. F., Granger, J., Veitch, J. A., Siedlecki, S., Burger, J. M., Pillay, K., & Fawcett, S. E. (2020). On-shelf nutrient trapping enhances the fertility of the southern Benguela upwelling system. Journal of Geophysical Research: Oceans, 125, e2019JC015948. https://doi.org/10.1029/2019JC015948.

Halo, I., Raj, P. R, (2020). Comparative oceanographic eddy variability during climate change in the Agulhas Current and Somali Coastal Current Large Marine Ecosystems, Environmental Development, https://doi.org/10.1016/j.envdev.2020.100586.

Halo, I., Sagero, P., Manyilizu, M. and Shigalla, M (2020). Biophysical modelling of the coastal upwelling variability and circulation along the Tanzanian and Kenyan coasts. Western Indian Ocean J. Mar Sc, Special Issue, 1, 43-61, ISSN: 0856-860X. http://dx.doi.org/10.4314/wiojms.si2020.1.5.

llig, S., Bachèlery, M.-L. and J. Lübbecke (2020). Why do Benguela Niños lead Atlantic Niños? Journal of Geophysical Research: Oceans, 125,e2019JC016003. https://doi.org/10.1029/2019JC016003.

Le Gouvello, D. Z. M., M. G. Hart-Davis, B. C. Backeberg, R. Nel (2020). Effects of swimming behavior and oceanography on sea turtle hatchling dispersal at the intersection of two ocean current systems. Ecological Modelling, 31, https://doi.org/10.1016/j.ecolmodel.2020.109130

Longandjo, G.-N T. and M. Rouault (2020). On the structure of large–scale circulation of the central Africa rainfall system. Journal of Climate. In press. OI: 10.1175/JCLI-D-19-0176.1 33(1):145-62.
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Manyilizu, M., Sagero, P., Halo, I., Mahongo, S. (2020). A Comparative Study of Ocean Surface Interannual Variability in Northern Tanzania and Northern Kenya Bank, Western Indian Ocean J. Mar Sc, Special Issue, 1, 1-8, ISSN: 0856-860X. http://dx.doi.org/10.4314/wiojms.si2020.1.1.

Nel, R., Dalleau, M., le Gouvello, D., Hart-Davis, M.G., Tucker, T., Rees, A.F., Phillott, A.D. and Whiting, S. 2020. Indian Ocean Loggerheads. SWOT Report Vol. 15.

Nhantumbo, B., J. E. O. Nilsen, B. C. Backeberg, C. J. C. Reason (2020). The relationship between coastal sea level variability and the Agulhas Current. Journal of Marine Systems. Journal of Marine Systems, 211, https://doi.org/10.1016/j.jmarsys.2020.103422.

Radenac, M. H., Jouanno, J., Tchamabi, C. C., Awo, M., Bourlès, B., Arnault, S., & Aumont, O. (2020). Physical drivers of the nitrate seasonal variability in the Atlantic cold tongue. Biogeosciences, 17(2), 529-545.

Raj, R. P., Halo, I., Chatterjee, S., Belonenko, T., Bakhoday‐Paskyabi, M., Bashmachnikov, I., Fedorov, A., Xie, J. (2020). Interaction between mesoscale eddies and the gyre circulation in the Lofoten Basin. Journal of Geophysical Research: Oceans, 125, e2020JC016102.
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Russo, C.S., Lamont T. and Krug, M. (2020). Spatial and Temporal Variability of the Agulhas Retroflection: Observations from a new objective detection method. Remote Sensing of Environment., 253, 112239. https://doi.org/10.1016/j.rse.2020.112239.

Taguela TN, Vondou DA, Moufouma-Okia W, Fotso-Nguemo TC, Longandjo, G.-N T, Pokam WM, Tanessong RS, [et al]. (2020). CORDEX multi-RCM hindcast overCentral Africa: Evaluation within observational uncertainty. Journal of Geophysical Research: Atmospheres, 125: e2019JD031607.