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Marie-Hélène Radenac

by Marie-Hélène Radenac — last modified Sep 14, 2016 10:53 AM
Pacifique tropical - ENSO - interactions physique/biologie

logo IRDMarie-Hélène Radenacportique


Chargée de Recherche, IRD

 

 

 

Adresse: LEGOS
14 avenue Edouard BELIN
31400 TOULOUSE
France
Email : marie-helene.radenac@legos.obs-mip.fr
Téléphone : (33) (0)5 61 33 30 00

 

 

 

diplômes

  • 1986 : doctorat, université de Bretagne Occidentale, Brest, France
  • 1983 : DEA, université de Bretagne Occidentale, Brest, France

 

affectations

 

activités scientifiques

  • impacts des processus physiques sur la distribution du phytoplancton dans le Pacifique tropical des échelles intra-saisonnières à interannuelles
  • variabilité de l'intensité de rétro-diffusion des ADCPs dans le Pacifique tropical

 

publications

  • Radenac M.-H., F. Léger, M. Messié, P. Dutrieux, C. Menkes, and G. Eldin,  2016, Wind-driven changes of surface  current, temperature, and chlorophyll observed by satellites north of New Guinea, Journal of Geophysical Research oceans, 121, 2231-2252, doi:10.1002/2015JC011438 (pdf)
  • Delcroix T., M.-H. Radenac, S. Cravatte, G. Alory, L. Gourdeau, F. Léger, A. Singh, and D. Varillon, 2014, Sea surface temperature and salinity seasonal changes in the western Solomon and Bismarck Seas, Journal of Geophysical Research Oceans, 119, doi:10.1002/2013JC009733. (résumé)
  • Gierach M. M., M. Messié, T. Lee, K. B. Karnauskas, and M.-H. Radenac, 2013, Biophysical responses near equatorial islands in the western Pacific ocean during El Niño/La Niña transitions. Geophysical Research Letters, 40, 20, 5473-5479, doi: 10.1002/2013GL057828. (résumé)
  • Radenac M.-H., M. Messié, F. Léger, and C. Bosc, 2013, A very oligotrophic zone observed from space in the equatorial Pacific warm pool, Remote Sensing of Environment, 134,224-233, doi:10.1016/j.rse.2013.03.007. (pdf)
  • Radenac M.-H., F. Léger, A. Singh, and T. Delcroix, 2012, Sea surface chlorophyll signature in the tropical Pacific during Eastern and Central Pacific ENSO events, Journal of Geophysical Research, 117, C04007, doi:10.1029/2011JC007841. (pdf)
  • Radenac M.-H., P. E. Plimpton, A. Lebourges-Dhaussy, L. Commien, and M. J. McPhaden,,2010, Impact of environmental forcing on the acoustic backscattering strength in the equatorial Pacific: diurnal, lunar, intraseasonal, and interannual variability, Deep-Sea Research I, 57, 10, 1314-1328. (pdf)
  • Gorguès T., C. Menkes, L. Slemmons, O. Aumont, Y. Dandonneau, M.-H. Radenac, S. Alvain, and C. Moulin, 2010, Revisiting the La Niña 1998 phytoplankton blooms in the equatorial Pacific, Deep-Sea Research I, 57, 4, 567-576. (résumé)
  • Messié M. and M.-H. Radenac, 2006, Seasonal variability of the surface chlorophyll in the western tropical Pacific from SeaWiFS data. Deep-Sea Research I, 53, 10, 1591-1600. (pdf)
  • Messié M., M.-H. Radenac, J. Lefèvre, and P. Marchesiello, 2006 Chlorophyll bloom in the western Pacific at the end of the 1997-98 El Niño: the role of Kiribati Islands. Geophysical Research Letters, 33, L14601, doi:10.1029/2006GL026033. (pdf)
  • Radenac M.-H., Y. Dandonneau, and B. Blanke, 2005, Displacements and transformations of nitrate-rich and nitrate-poor water masses in the tropical Pacific during the 1997 El Niño. Ocean Dynamics, 55, 1, 34-46, DOI: 10.1007/s10236-005-0111-5. (pdf)
  • Charria G., F. Mélin, I. Dadou, M.-H. Radenac, and V. Garçon, 2003, Rossby wave and ocean color: the cells uplifting hypothesis in the South Atlantic Subtropical Convergence Zone. Geophysical Research Letters, 30, 3, doi: 10.1029/2002GL016390. (résumé)
  • Radenac M.-H., C. Menkes, J. Vialard, C. Moulin, Y. Dandonneau, T. Delcroix, C. Dupouy, A. Stoens, and P.-Y. Deschamps, 2001, Modeled and observed impacts of the 1997-98 El Niño on nitrate and new production in the equatorial Pacific. Journal of Geophysical Research, 106, 26879-26898. (pdf)
  • Blanchot J., J.-M. André, C. Navarette, J. Neveux, and M.-H. Radenac, 2001, Picophytoplankton in the equatorial Pacific: vertical distribution in the warm pool and in the high nutrient low chlorophyll conditions. Deep-Sea Research I, 48, 297-314. (pdf)
  • André J.-M., C. Navarette, J. Blanchot, and M.-H. Radenac, 1999, Picoplankton dynamics in the equatorial Pacific: growth and grazing rates from cytometric counts. Journal of Geophysical Research, 104, 3369-3380. (pdf)
  • Stoens A., C. Menkes, M.-H. Radenac, N. Grima, Y. Dandonneau, G. Eldin, L. Memery, C. Navarette, J.-M. André, T. Moutin, and P. Raimbault, 1999, The coupled physical-new production system in the equatorial Pacific during the 1992-1995 El Niño. Journal of Geophysical Research, 104, 3323-3339. (pdf)
  • Zhu X.-H., A. Kaneko, N. Gohda, H. Inara, K. Kutsuwada, and M.-H. Radenac, 1998, Observation of mixed Rossby-gravity waves in the western equatorial Pacific. Journal of Oceanography, 54, 133-141. (résumé)
  • Eldin G., M. Rodier, and M.-H. Radenac, 1997, Physical and nutrient variability in the upper equatorial Pacific associated with westerly wind forcing and wave activity in October 1994. Deep-Sea Research II, 44, 1783-1800. (pdf)
  • Radenac M.-H. and M. Rodier, 1996, Nitrate and chlorophyll distributions in relation to thermohaline and current structures in the western tropical Pacific in 1985-89. Deep-Sea Research II, 43, 725-752. (pdf)
  • Kaneko A., X-H. Zhu, and M. H. Radenac, 1996, Diurnal variability and quantification of subsurface sound scatterers in the western equatorial Pacific. Journal of Oceanography, 52, 655-674. (résumé)
  • Delcroix, T., G. Eldin, M.H. Radenac, J. Toole and E. Firing, 1992, Variations of the western equatorial Pacific ocean, 1986-1988. Journal of Geophysical Research, 97, 5423-5447. (pdf)

 

posters / présentations

  • Radenac M.-H., F. Léger, P. Dutrieux, G. Eldin, and C. Menkes, 2012, Seasonal variability of current anomaly, surface temperature, and chlorophyll north of New Guinea Island inferred from space, abstract OS41B-1718, 2012 AGU Fall Meeting, San Francisco, USA, 3-7 December 2012. (pdf)
  • Radenac M.-H., F. Léger, A. Singh, and T. Delcroix, 2012, Surface chlorophyll responses to Eastern and Central Pacific El Niño events using a multi-satellite analysis. 20 Years of Progress in Radar Altimetry, Venice, Italy, 24-29 September 2012. (pdf)
  • Léger F., M.-H. Radenac, P. Dutrieux, C. Menkes, and G. Eldin, 2012, The New Guinea Coastal Current and upwelling system: seasonal variability inferred from along-track altimetry, surface temperature and chlorophyll. 20 Years of Progress in Radar Altimetry, Venice, Italy, 24-29 September 2012. (pdf)
  • Radenac M.-H., 2012, BISOUS, Biological ImpactS of el niñOcentral pacific from satellites and simUlationS. 1er colloque de restitution du TOSCA, Paris, France, 21-22 mars 2012.
  • Radenac M.-H., F. Léger, A. Singh, and T. Delcroix, 2012, Structures de chlorophylle de surface pendant les El Niño récents. Atelier National Couleur de l'Eau, Sophia-Antipolis, France, 23-24 janvier 2012. (pdf)
  • Radenac M.-H., P. E. Plimpton, A. Lebourges-Dhaussy, M. J. McPhaden, 2011, Acoustic backscatter observations of zooplankton: responses to environmental forcing in the equatorial Pacific from diurnal to interannual time-scales. EGU General Assembly 2011, Vienna, Austria, 3-8 April 2011, Geophysical Research Abstracts, Vol. 13, EGU2011-3342. (pdf)
  • Radenac M.-H., M. Messié, and C. Bosc, 2011 Intraseasonal to interannual zonal displacements of the very oligotrophic waters of the Pacific warm pool: a multi-satellite approach. EGU General Assembly 2011, Vienna, Austria, 3-8 April 2011, Geophysical Research Abstracts, Vol. 13, EGU2011-3383. (pdf)
  • Léger F., M.-H. Radenac, P. Dutrieux, G. Eldin, and C. Menkes, 2011, Seasonal variability of the New Guinea Coastal Current using along-track altimetry. EGU General Assembly 2011, Vienna, Austria, 3-8 April 2011, Geophysical Research Abstracts, Vol. 13, EGU2011-3267. (pdf)
  • Léger F., M.-H. Radenac, P. Dutrieux, G. Eldin, and C. Menkes, 2010, Variability of coastal circulation north of New Guinea using along track altimetry. Special Meeting on Towards High-Resolution of Ocean Dynamics and Terrestrial Surface Waters from Space, Lisboa, Portugal, 21-22 October 2010.
  • Radenac M.-H., M. Messié, and C. Bosc, 2010, Very oligotrophic waters in the Pacific warm pool: zonal displacements, westerly winds and El Niño. Ocean Surface Topography Science Team Meeting, Lisboa, Portugal, 18-20 October 2010. (pdf)
  • Léger F., M.-H. Radenac, P. Dutrieux, G. Eldin, and C. Menkes, 2010, Variability of coastal circulation north of New Guinea using along track altimetry. Ocean Surface Topography Science Team Meeting, Lisboa, Portugal, 18-20 October 2010. (pdf)
  • Léger F., M.-H. Radenac, P. Dutrieux, G. Eldin, and C. Menkes, 2010, Variability of coastal circulation north of New Guinea using along track altimetry. 4th Coastal Altimetry Workshop, Porto, Portugal, 14-15 October 2010.
  • Radenac M.-H., M. Messié, and C. Bosc, 2010, Surface chlorophyll, westerly winds, and El Nino in the western Pacific warm pool. 38th COSPAR Scientific Assembly 2010, Bremen, Germany, 18-25 July 2010. (pdf)
  • Radenac M.-H., P. E. Plimpton, A. Lebourges-Dhaussy, L. Commien, M. J. McPhaden, 2010, Impact of environmental forcing on the acoustic backscattering strength in the equatorial Pacific: diurnal, lunar, intraseasonal, and interannual variability. ICES-Working Group on Fisheries Acoustics Science and Technology, 2010 meeting, San Diego, USA, 27th to 30th April 2010. (pdf)
  • Radenac M.-H., G. Eldin, E. Zakharova, and T. Bouinot, 2008, Oceanic response to northwest monsoon winds north of New Guinea. Observing and Forecasting the Ocean, Ocean Surface Topography Science Team Meeting, Nice, France, 10-12 October 2008. (pdf)
  • Gorgues T., L. Slemons, C. Menkes, J. Murray, O. Aumont, and M.-H. Radenac, 2008, A model study of the New Guinea Coastal Undercurrent modulation of large phytoplankton blooms in the central and eastern equatorial Pacific, Eos Transactions AGU, 89(23), Western Pacific Geophysical Meeting Suppl., Abstract OS21A-03, Cairns, Australia, 29 July-1 August 2008.
  • Radenac M.-H., C. Menkes, G. Eldin, V. Faure, D. Dagorne, E. Zakharova, T. Gorgues, P. Marchesiello, and M. Messié, 2008, Oceanic seasonal variability north of Papua New Guinea: an integrated approach. 2008 Ocean Sciences Meeting, Orlando, Florida, USA, 2-7 March 2008. (pdf)
  • Radenac M.-H., 2007, How can we use ADCP backscatter measurements ? A tentative study in the equatorial Pacific. Designing an Ocean Mid-trophic Automatic Acoustic Sampler (MAAS), GLOBEC-CLIOTOP Workshop, Sète, France, January 15-19 2007. (pdf)
  • Radenac M.-H. and M. Messié, 2007, Chlorophyll and westerly wind events in the western tropical Pacific a multi-sensor approach. Ocean Surface Topography Science Team Meeting, Hobart, Australia, March 12-15, 2007. (pdf)
  • Messié M., M.-H.Radenac, J. Lefèvre, and P. Marchesiello, 2006, Chlorophyll bloom in the western equatorial Pacific during the 1998 El Niño / La Niña transition: the role of Kiribati Islands. AGU Ocean Sciences Meeting, Honolulu, Hawaii, USA, 20-24 February 2006. (pdf)
  • Messié M., M.-H.Radenac, and J. Lefèvre, 2006, Chlorophyll bloom in the western equatorial Pacific during the 1998 El Niño / La Niña transition: the role of Kiribati Islands as seen from satellite, in-situ data, and a high-resolution simulation. Fifteen Years of Progress in Radar Altimetry, Venice Lido, Italy, March 13-18 2006. (pdf)
  • Messié M. and M.-H. Radenac, 2005, Ocean color seasonal variability of the western tropical Pacific basin. EGU, Vienne, Austria, 25-29 April 2005. (pdf)
  • Radenac M.-H., Y. Dandonneau, and B. Blanke, 2004, Nitrate rich and nitrate poor water masses in the equatorial Pacific: Their evolution during the 1997 El Niño. Ocean Sciences Meeting, Portland, USA, January 26-30 2004. (pdf)
  • Radenac M.-H., Y. Dandonneau, C. Menkes, and B. Blanke, 2003, Nitrate distribution in the equatorial Pacific during the 1997 El Niño: biological processes vs. vertical and horizontal physical processes. Final JGOFS Open Science Conference, Washington D.C., 5-8 May 2003. (pdf)

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