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Stanley Jackson Award

Stanley Jackson Award

Journal Highlights


Warm temperatures in the equatorial Atlantic Ocean linked to cold conditions in the tropical Pacific


Interannual variability in the equatorial Atlantic Ocean can be explained by local ocean-atmosphere interactions, maintained and/or triggered by random forcing or by remote forcing originating mostly from the tropical Pacific Ocean through atmospheric equatorial teleconnections. To investigate how changes in equatorial atmospheric circulation influence the equatorial Atlantic climate, Illig et al. (2006) focused on an interannual warm event that occurred in this basin in the boreal spring-summer of 1996. Using observations and ensemble simulations from an intermediate coupled model developed partly by the authors, they analyzed the role of local coupled air-sea interactions versus tropical Pacific teleconnections. They found that persistent cold conditions in the tropical Pacific from 1995 to 1996 were favorable to the growth of local ocean-atmosphere feedbacks that led to the observed 1996 warming event in the equatorial Atlantic. The authors expect that further work will link other anomalous warm events in the equatorial Atlantic with cold conditions in the tropical Pacific.

2 May 2006

My Publications
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    1. Chenillat, F., S. Illig, J. Jouanno, F. M. Awo, G. Alory & P. Brehmer, 2021: How do climate modes shape the chlorophyll-a interannual variability in the tropical Atlantic? Submitted to Geophysical Research Letter in April 2021.
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      Plain Language Summary

    2. Illig, S., M.-L. Bachèlery & J. F. Lübbecke, 2020: Why do Benguela Niños lead Atlantic Niños? Journal of Geophysical Research: Oceans, 125, e2019JC016003. https://doi.org/10.1029/2019JC016003.
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      Plain Language Summary

    3. Bachèlery, ML., S. Illig & M. Rouault, 2020: Interannual Coastal Trapped Waves in the Angola-Benguela Upwelling System and Benguela Niño and Niña events. Journal of Marine Systems, Vol 203, March 2020, 103262, https://doi.org/10.1016/j.jmarsys.2019.103262.
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    4. Imbol Koungue R.A., M. Rouault, S. Illig, M. Rouault, P. Brandt & J. Jouanno, 2019: Benguela Niños and Benguela Niñas in forced ocean simulation from 1958 to 2015. J. Geophys. Res., 124, 5923-5951. https://doi.org/10.1029/2019JC015013.
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    5. Foltz, G.R. et al., 2019: The Tropical Atlantic Observing system. Front. Mar. Sci. https:/doi.org/10.3389/fmars.2019.00206.
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    6. Illig, S. & ML. Bachèlery, 2019: Propagation of Subseasonal Equatorially-Forced Coastal Trapped Waves down to the Benguela Upwelling System. Nature - Scientific Reports, 9, 5306. https://doi.org/10.1038/s41598-019-41847-1.
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    7. Bretagnon, M., A. Paulmier, V. Garçon, B. Dewitte, S. Illig, N. Lebond, L. Coppola, F. Campo, F. Velazco, C. Panagiotopoulos, A. Oschlies, J.M. Hernandez-Ayon, H. Maske, O. Vergara, I. Montes, P. Martinez, E. Carrasco, J. Grelet, O. Depretz-de-Gesincourt, C. Maes & L. Scouarnec, 2018: Modulation of the vertical particules transfer efficiency in the Oxygen Minimum Zone off Peru. Biogeosciences Discussions, 15, 5093-5111. https://doi.org/10.5194/bg-2018-103.
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    8. Desbiolles, F., R.C. Blamey, S. Illig, R. James, R. Barimalala, L. Renault & C.J.C. Reason, 2018: Upscaling impact of Wind/sea surface temperature mesoscale interactions on southern Africa austral summer Climate. Int. J. Climatol., 38, 4651–4660. https://doi.org/10.1002/joc.5726.
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    9. Illig, S., E. Cadier, M.-L. Bachèlery & M. Kersalé, 2018a: Subseasonal coastal-trapped wave propagations in the southeastern Pacific and Atlantic Oceans: 1. A new approach to estimate wave amplitude. J. Geophys. Res., 123, 3915–3941. https://doi.org/10.1029/2017JC013539.
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    10. Illig, S., M.-L. Bachèlery & E. Cadier, 2018b: Subseasonal coastal-trapped wave propagations in the southeastern Pacific and Atlantic Oceans: 2. Wave characteristics and connection with the equatorial variability. J. Geophys. Res., 123, 3942–3961. https://doi.org/10.1029/2017JC013540.
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    11. Rouault, M., S. Illig, J. Lübbecke & R.A. Imbol Koungue, 2018: Origin, development and demise of the 2010-2011 Benguela Niño, Journal of Marine Systems, 188, 39-48, doi:10.1016/j.jmarsys.2017.07.007.
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    12. Imbol Koungue R.A., S. Illig & M. Rouault, 2017: Role of Interannual Kelvin wave propagations in the equatorial Atlantic on the Angola Benguela current system, J. Geophys. Res., 122, 4685–4703, doi:10.1002/2016JC012463.
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    13. Astudillo O., B. Dewitte, M. Mallet, F. Frappart, J. Rutllant, M. Ramos, L. Bravo. K. Goubanova & S. Illig, 2017: Surface Winds off Peru-Chile: Observing closer to the coast from radar altimetry, Journal of Remote Sensing of Environment, 191, doi: 10.1016/j.rse.2017.01.010.
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    14. Bachèlery, M.-L., S. Illig & I. Dadou, 2016b: Forcings of Nutrient, Oxygen and Primary Production interannual variability in the South-East Atlantic Ocean, Geophys. Res. Lett., 43, 8617–8625, doi: 10.1002/2016GL070288.
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    15. Renault, L., M. J. Molemaker, J. C. McWilliams, A. F. Shchepetkin, F. Lemarié, D. Chelton, S. Illig & A. Hall, 2016: Modulation of Wind-Work by Oceanic Current Interaction with the Atmosphere, J. Phys. Oceanogr., 46, 1685–1704, https://doi.org/10.1175/JPO-D-15-0232.1.
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    16. Bachèlery, M.-L., S. Illig & I. Dadou, 2016a: Interannual variability in the South-East Atlantic Ocean, focusing on the Benguela Upwelling System: Remote versus local forcing, J. Geophys. Res. Oceans, 121, 284–310, doi: 10.1002/2015JC011168.
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    17. Hernández-Carrasco I., J. Sudre, V. Garçon, H. Yahia, C. Garbe, A. Paulmier, B. Dewitte, S. Illig, I. Dadou, M. González-Dávila & J. M. Santana-Casiano, 2015: Reconstruction of super-resolution fields of ocean pCO2 and air–sea fluxes of CO2 from satellite imagery in the Southeastern Atlantic, Biogeosciences Discuss., 12, 1405-1452, doi:10.5194/bgd-12-1405-2015.
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    18. Mosquera-Vásquez K., B. Dewitte & S. Illig, 2014: The Central Pacific El Niño intraseasonal Kelvin wave, J. Geophys. Res. Oceans, 119, 6605–6621, doi: 10.1002/2014JC010044.
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    19. Illig, S., B. Dewitte, K. Goubanova, G. Cambon, J. Boucharel, F. Monetti, C. Romero, S. Purca & R. Flores, 2014: Forcing mechanisms of intraseasonal SST variability off Central Peru in 2000–2008, J. Geophys. Res. Oceans, 119, 3548–3573, doi:10.1002/2013JC009779.
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    20. Dewitte B., K. Takahashi , K. Goubanova, A. Montecinos, K. Mosquera, S. Illig, I. Montes, A. Paulmier, V. Garçon, S. Purca, R. Flores, L. Bourrel, P. Rau, D. Labat, W. Lavado & J.C. Espinoza, 2014: Las diversas facetas de El Nino y sus efectos en la costa del Peru, Book Chapter, El Perú frente al cambio climático, 125-140.
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    21. Goubanova K., S. Illig, E. Machu, V. Garçon & B. Dewitte, 2013: SST subseasonal variability in the Benguela upwelling system as inferred from satellite observations (2000-2008), J. Geophys. Res., 118, 4092–4110, doi:10.1002/jgrc.20287.
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    22. Cambon G., K. Goubanova, P. Marchesiello, B. Dewitte & S. Illig, 2013: Assessing the impact of downscaled winds on a regional ocean model simulation of the Humboldt system, Ocean Modelling, 65, 11-24.
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    23. Mosquera, K., B. Dewitte, S. Illig, K. Takahashi & G. Garric, 2013: The 2002/03 El Niño: Equatorial wave sequence and their impact on Sea Surface Temperature. J. Geophys. Res. Oceans, 118, 346–357, doi: 10.1029/2012JC008551.
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    24. Thual. S., B. Dewitte, S.-I. An, S. Illig & N. Ayoub, 2013: Influence of Recent Stratification Changes on ENSO stability in a Conceptual Model of the Equatorial Pacific. J. Climate, 26, 4790–4802, https://doi.org/10.1175/JCLI-D-12-00363.1
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    25. Alory, G., C. Maes, T. Delcroix, N. Reul & S. Illig, Seasonal dynamics of sea surface salinity off Panama: The Far Eastern Pacific fresh pool, J. Geophys. Res. Oceans, 117, C4, doi:10.1029/2011JC007802, 2012.
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    26. Renault L., B. Dewitte, P. Marchesiello, S. Illig, V. Echevin, G. Cambon, M. Ramos, O. Astudillo, P. Minnis & J. K. Ayers, 2012: Upwelling response to atmospheric coastal jets off Central Chile: A modeling study of the October 2000 event. J. Geophys. Res. Oceans, V. 117, C02030.doi:10.1029/2011JC007446.
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    27. Dewitte B., J. Vazquez-Cuervo, K. Goubanova, S. Illig, K. Takahashi, G. Cambon, S. Purca, D. Correa, D. Gutierrez, A. Sifeddine & L. Ortlieb, 2012: Change in El Niño flavours over 1958-2008: Implications for the long-term trend of the upwelling off Peru. Deep Sea Research II, doi:10.1016/j.dsr2.2012.04.011.
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    28. Garbe C.S., Butz A., Dadou I., Dewitte Boris, Garçon V., Illig S., Paulmier A., Sudre J. & Yahia H, 2012: Climatically-active gases in the eastern boundary upwelling and oxygen minimum zone (OMZ) systems. In : IEEE international geoscience and remote sensing symposium (IGARSS) : proceedings. Piscataway: IEEE, 2012, p. 6150-6153.
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    29. Dewitte B., S. Illig, L. Renault, K. Goubanova, K. Takahashi, D. Gushchina, K. Mosquera & S. Purca, 2011: Modes of covariability between sea surface temperature and wind stress intraseasonal anomalies along the coast of Peru from satellite observations (2000–2008). J. Geophys. Res. Oceans, 116, doi:10.1029/2010JC006495.
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    30. Dewitte B., S. Purca, S. Illig., L. Renault & B. Giese, 2008: Low frequency modulation of the intra-seasonal equatorial Kelvin wave activity in the Pacific ocean from SODA: 1958-2001. J. Climate, 21, 6060–6069, https://doi.org/10.1175/2008JCLI2277.1
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    31. Illig, S. , B. Dewitte, C. Perigaud & C. Derval, 2007: Equatorial wave intra-seasonal variability in the Indian and Pacific oceans in the Mercator Ocean POG05B simulation. Mercator Newsletter. 2007, 45-56.
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    32. Illig, S. & C. Perigaud, 2007: Seasonal impact of intra-monthly rain fluctuations on the Indian Ocean surface salinity, Geophys. Res. Lett., 34, L12609, doi: 10.1029/2007GL029655.
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    33. Rouault M., S. Illig, C Bartholomae, C.J.C. Reason & A. Bentamy, 2007: Propagation and origin of warm anomalies in the Angola Benguela upwelling system in 2001, Journal of Marine Systems, 68 (3-4), 473-488. https://doi.org/10.1016/j.jmarsys.2006.11.010.
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    34. Illig, S., D. Gushchina, B. Dewitte, N. Ayoub & Y. du Penhoat, 2006: The 1996 Equatorial Atlantic Warm Event: Origin and Mechanisms, Geophys. Res. Lett., 33, L09701, doi: 10.1029/2005GL025632. Editor’s Highlight.
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    35. Illig, S. & B. Dewitte, 2006: Local Coupled Equatorial Variability Versus Remote ENSO Forcing in an Intermediate Coupled Model of the Tropical Atlantic, J. Climate, 19, 5227–5252, https://doi.org/10.1175/JCLI3922.1.
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    36. Gushchina D., B. Dewitte & S. Illig, 2006: Remote ENSO forcing versus local air-sea interaction in QTCM: a sensitivity study to intraseasonal variability. Advance in Geoscience, 6, 289-297.
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    37. Illig, S., 2005: Variabilité basse fréquence de l'Atlantique tropical: Rôle de la dynamique océanique équatoriale et Influence d'El Niño Southern Oscillation. Thèse de doctorat de l'université Paul Sabatier (Toulouse, France), 180pp.
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    38. Illig, S., B. Dewitte, N. Ayoub, Y. du Penhoat, G. Reverdin, P. De Mey, F. Bonjean & G.S. E. Lagerloef, 2004: Interannual Long Equatorial Waves in the Tropical Atlantic from a High Resolution OGCM Experiment in 1981-2000. J. Geophys. Res. Oceans, 109, C02022, doi: 10.1029/2003JC001771.
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    39. Dewitte B., S. Illig, L. Parent, Y. du Penhoat, L. Gourdeau & J. Verron, 2004: Tropical Pacific baroclinic mode contribution and associated long waves for the 1994-1999 period from an assimilation experiment with altimetric data. J. Geophys. Res. Oceans, 108, 3121, doi: 10.1029/2002JC001362, C4.
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