Publications

7. Koets, R., Swart, S., Donohue, K., du Plessis, M.D.,. Observations of tracer ventilation in the Cape Basin, Agulhas Current Retroflection. Open for discussion and under review for Ocean Science.

6. du Plessis, M.D., Nicholson, S.A., Giddy, I.S., Monteiro, P.M., Prend, C.J., Swart. S. 2025. Storms regulate Southern Ocean warming. Nature Geoscience.

5. Spira, T, du Plessis, M.D., Haumann, F.A., Giddy, I.S., Narayanan, A., Silvano, A., Swart, S., 2025. Wind-triggered Antarctic sea ice decline preconditioned by thinning Winter Water. Nature Climate Change.

4. Prend, C.J., Swart, S., Stewart., A.L., du Plessis, M.D., Manuscharyan, G.E., and Thompson, A.F., 2025. Observed regimes of submesoscale dynamics in the Southern Ocean seasonal ice zone. Nature Communications.

3. Edholm, J.E., du Plessis, M.D., Biddle, L.C., Gille, S.T., Mazloff, M.R., Rosenthal, H.S., Swart, S., 2025. From Synoptic to Submesoscale: Understanding Sensible Heat Flux Variability in the Southern Ocean. Journal of Geophysical Research: Oceans.

2. Ducrocq, B., Steiger, N., du Plessis, M.D., Sallée, J.B., Moreau, S., Swart, S., 2025. A Chlorophyll Halo over Maud Rise in the Southern Ocean. Nature Communications.

1. Cai, Y., Lei, R., Chen, D., du Plessis, M.D., Han, X., Wu, L., 2025. Anticyclonic component of eddy dipoles traps sea ice within the Marginal Ice Zone. Geophysical Research Letters.

29. Chang, N., Nicholson, S.A., du Plessis, M.D., Lebehot, A.D., Mashifane, T., Moalusi, T.C., Mongwe, N.P. and Monteiro, P.M., 2025. BIOPERIANT12: a mesoscale resolving coupled physics-biogeochemical model for the Southern Ocean. Geoscientific Model Development Discussions. Accepted.

28. Naëck, K., Boutin, J., Swart, S., du Plessis, M.D., Merlivat, L., Beaumont, L., Lourenco, A., d’Ovidio, F., Rousselet, L., Ward, B. and Sallée, J.B., 2025. Anomalous summertime CO2 sink in the subpolar Southern Ocean promoted by early 2021 sea ice retreat. Biogeosciences, 22(8), pp.1947-1968. doi: https://doi.org/10.5194/bg-22-1947-2025

27. Prend, C.J., du Plessis, M.D., Mazloff, M.R., Sunnercrantz, L., Swart, S. and Gille, S.T., 2025. Observing system requirements for measuring high-frequency air–sea fluxes in the Southern Ocean. Elem Sci Anth, 13(1), p.00061. doi: https://doi.org/10.1525/elementa.2024.00061

26. Patterson, R.G., Cronin, M.F., Swart, S., Beja, J., Edholm, J.M., McKenna, J., Palter, J.B., Parker, A., Addey, C.I., Boone, W., Bhuyan, P., du Plessis, M.D., and others., 2025. Uncrewed surface vehicles in the Global Ocean Observing System: a new frontier for observing and monitoring at the air-sea interface. Frontiers in Marine Science, 12, p.1523585. doi: https://doi.org/10.3389/fmars.2025.1523585

25. Jacob, B., Queste, B.Y. and du Plessis, M.D., 2024. Turbulent heat flux dynamics along the Dotson and Getz ice-shelf fronts (Amundsen Sea, Antarctica). EGUsphere, 2024, pp.1-33. doi: https://doi.org/10.5194/os-21-359-2025

24. Spira, T., Swart, S., Giddy, I. and du Plessis, M.D., 2024. The observed spatiotemporal variability of Antarctic Winter Water. Journal of Geophysical Research: Oceans, 129(10), p.e2024JC021017. doi: https://doi.org/10.1029/2024JC021017

23. Patmore, R.D., Ferreira, D., Marshall, D.P., du Plessis, M.D., Brearley, J.A. and Swart, S., 2024. Evaluating Existing Ocean Glider Sampling Strategies for Submesoscale Dynamics. Journal of Atmospheric and Oceanic Technology, 41(7), pp.647-663. doi: https://doi.org/10.1175/JTECH-D-23-0055.1

22. Gutiérrez-Loza, L., Cronin, M.F., Marandino, C., Swart, S., Bourassa, M.A., du Plessis, M.D., Edholm, J.M., Fairall, C.W., Gille, S.T., Karstensen, J. and Looney, L.B., 2024. The Need for a Community of Practice for Air-Sea Flux Observations. Marine Technology Society Journal, 58(1-2), pp.20-25. doi: https://doi.org/10.4031/MTSJ.58.1.3

21. Oelerich, R., Heywood, K.J., Damerell, G.M., du Plessis, M.D., Biddle, L.C. and Swart, S., 2023. Stirring across the Antarctic Circumpolar Current’s Southern boundary at the Greenwich Meridian, Weddell Sea. EGUsphere, 2023, pp.1-23. doi: https://doi.org/10.5194/os-19-1465-2023

20. Clem, K.R., Adusumilli, S., Baiman, R., Banwell, A.F., Barreira, S., Beadling, R.L., Bozkurt, D., Colwell, S., Coy, L., Datta, R.T. and De Laat, J., du Plessis, M.D., and others., 2023. Antarctica and the southern ocean. Bulletin of the American Meteorological Society, 104(9), pp.S322-S365. doi: https://doi.org/10.1175/BAMS-D-23-0077.1

19. Narayanan, A., Gille, S.T., Mazloff, M.R., du Plessis, M.D., Murali, K. and Roquet, F., 2023. Zonal distribution of Circumpolar Deep Water transformation rates and its relation to heat content on Antarctic shelves. Journal of Geophysical Research: Oceans, 128(6), p.e2022JC019310. doi: https://doi.org/10.1029/2022JC019310

18. Thomalla, S.J., du Plessis, M.D., Fauchereau, N., Giddy, I., Gregor, L., Henson, S., Joubert, W.R., Little, H., Monteiro, P.M., Mtshali, T. and Nicholson, S., 2023. Southern Ocean phytoplankton dynamics and carbon export: insights from a seasonal cycle approach. Philosophical Transactions of the Royal Society A, 381(2249), p.20220068. doi: https://doi.org/10.1098/rsta.2022.0068

17. Swart, S., du Plessis, M.D., Nicholson, S.A., Monteiro, P.M., Dove, L.A., Thomalla, S., Thompson, A.F., Biddle, L.C., Edholm, J.M., Giddy, I. and Heywood, K.J., 2023. The Southern Ocean mixed layer and its boundary fluxes: fine-scale observational progress and future research priorities. Philosophical Transactions of the Royal Society A, 381(2249), p.20220058. doi: https://doi.org/10.1098/rsta.2022.0058

16. SO-CHIC consortium, Sallée, J.B., Abrahamsen, E.P., Allaigre, C., Auger, M., Ayres, H., Badhe, R., Boutin, J., Brearley, J.A., de Lavergne, C. and ten Doeschate, A.M.M., du Plessis., M.D., and others., 2023. Southern ocean carbon and heat impact on climate. Philosophical Transactions of the Royal Society A, 381(2249), p.20220056. doi: https://doi.org/10.1098/rsta.2022.0056

15. 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., du Plessis, M., and others., 2023. Developing an observing air–sea interactions strategy (OASIS) for the global ocean. ICES Journal of Marine Science, 80(2), pp.367-373. doi: https://doi.org/10.1093/icesjms/fsac149

14. Edholm, J.M., Swart, S., du Plessis, M.D., and Nicholson, S.A., 2022. Atmospheric rivers contribute to summer surface buoyancy forcing in the atlantic sector of the southern ocean. Geophysical Research Letters, 49(17), p.e2022GL100149. doi: https://doi.org/10.1029/2022GL100149

13. du Plessis, M.D., Swart, S., Biddle, L.C., Giddy, I.S., Monteiro, P.M., Reason, C.J.C., Thompson, A.F. and Nicholson, S.A., 2022. The daily‐resolved Southern Ocean mixed layer: Regional contrasts assessed using glider observations. Journal of Geophysical Research: Oceans, 127(4), p.e2021JC017760. doi: https://doi.org/10.1029/2021JC017760

12. Nicholson, S.A., Whitt, D.B., Fer, I., du Plessis, M.D., Lebéhot, A.D., Swart, S., Sutton, A.J. and Monteiro, P.M., 2022. Storms drive outgassing of CO2 in the subpolar Southern Ocean. Nature communications, 13(1), p.158. doi: https://doi.org/10.1038/s41467-021-27780-w

11. Stammerjohn, S., Scambos, T.A., Adusumilli, S., Barreira, S., Bernhard, G.H., Bozkurt, D., Bushinsky, S.M., Clem, K.R., Colwell, S., Coy, L. and De Laat, J., du Plessis, M., 2021. Antarctica and the Southern Ocean in [State of the Climate 2020]. Bulletin of the American Meteorological Society, 102(8), pp.S317-S356. doi: https://doi.org/10.1175/BAMS-D-21-0081.1

10. Giddy, I., Swart, S., du Plessis, M., Thompson, A.F. and Nicholson, S.A., 2021. Stirring of sea‐ice meltwater enhances submesoscale fronts in the Southern Ocean. Journal of Geophysical Research: Oceans, 126(4), p.e2020JC016814. doi: https://doi.org/10.1029/2020JC016814

9. Abrahamsen, E.P., Barreira, S., Bitz, C.M., Butler, A., Clem, K.R., Colwell, S., Coy, L., de Laat, J., du Plessis, M.D., Fogt, R.L. and Fricker, H.A., and others. 2020. Antarctica and the Southern Ocean [in State of the Climate in 2019]. doi: https://doi.org/doi:10.1175/BAMS-D-20-0090.1

8. Swart, S., du Plessis, M.D., Thompson, A.F., Biddle, L.C., Giddy, I., Linders, T., Mohrmann, M. and Nicholson, S.A., 2020. Submesoscale fronts in the Antarctic marginal ice zone and their response to wind forcing. Geophysical Research Letters, 47(6), p.e2019GL086649. doi: https://doi.org/10.1029/2019GL086649

7. Swart, S., Gille, S.T., Delille, B., Josey, S., Mazloff, M., Newman, L., Thompson, A.F., Thomson, J., Ward, B., du Plessis, M.D. and Kent, E.C., 2019. Constraining Southern Ocean air-sea-ice fluxes through enhanced observations. Frontiers in Marine Science, 6, p.421. doi: https://doi.org/10.3389/fmars.2019.00421

6. du Plessis, M., Swart, S., Ansorge, I.J., Mahadevan, A. and Thompson, A.F., 2019. Southern ocean seasonal restratification delayed by submesoscale wind–front interactions. Journal of Physical Oceanography, 49(4), pp.1035-1053. doi: hhttps://doi.org/10.1175/JPO-D-18-0136.1

5. Dike, V.N., Addi, M., Andang’o, H.A., Attig, B.F., Barimalala, R., Diasso, U.J., du Plessis, M., Lamine, S., Mongwe, P.N., Zaroug, M. and Ochanda, V.K., 2018. Obstacles facing Africa’s young climate scientists. Nature Climate Change, 8(6), pp.447-449. doi: https://doi.org/10.1038/s41558-018-0178-x

4. Morris, T., Hermes, J., Beal, L., du Plessis, M., Rae, C.D., Gulekana, M., Lamont, T., Speich, S., Roberts, M. and Ansorge, I.J., 2017. The importance of monitoring the Greater Agulhas Current and its inter-ocean exchanges using large mooring arrays. South African Journal of Science, 113(7-8), pp.1-7. doi: https://doi.org/10.17159/sajs.2017/20160330

3. du Plessis, M., Swart, S., Ansorge, I.J. and Mahadevan, A., 2017. Submesoscale processes promote seasonal restratification in the s ubantarctic o cean. Journal of Geophysical Research: Oceans, 122(4), pp.2960-2975. doi: https://doi.org/10.1002/2016JC012494

2. Ansorge, I.J., Brundrit, G., Brundrit, J., Dorrington, R., du Plessis, M.D., Fawcett, S., Gammon, D., Henry, T., Hermes, J., Hölscher, B., d’Hotman, J. and Meiklejohn, I., 2016. SEAmester-South Africa’s first class afloat. South African Journal of Science, 112(9-10), pp.1-4. doi: https://doi.org/10.17159/sajs.2016/a0171

1. Fraser, C.I., Kay, G.M., du Plessis, M.D. and Ryan, P.G., 2017. Breaking down the barrier: dispersal across the Antarctic Polar Front. Ecography, 40(1), pp.235-237. doi: https://doi.org/10.1111/ecog.02449