Retish Senan

Research Department, Earth System Predictability Section, Long Range

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Retish Senan is a Scientist in the Earth System Predictability Section of the Research Department.  His interests include climate variability on sub-seasonal  to inter-annual time-scales and the impact of land-surface and sea-ice coupling on climate predictability. Currently, he contributes to the development and assessment of a climate configuration of the ECMWF IFS for the European Union Horizon-2020 funded PRIMAVERA Project. He also works on diagnostics for routine attribution of seasonal forecast error and predictability as well as improving diagnostic tools for seasonal forecast verification.

Professional interests: 
  • Earth System Model evaluation and diagnostics
  • Sub-seasonal to seasonal climate variability and predictability
  • Land-surface and sea-ice impacts on climate
Career background: 


Ph.D., Indian Institute of Science, Faculty of Engineering, Bangalore, India (2004). Thesis on "Intraseasonal variability of the equatorial Indian Ocean circulation". Advisors: Profs. Debasis Sengupta and B. N. Goswami

M.Sc. (Engg.),  Indian Institute of Science, Faculty of Engineering, Bangalore, India (1999). Master's Thesis on "Intraseasonal variability of the northeast Indian Ocean circulation in an ocean model".

M.Sc. in Oceanography, Cochin University of Science and Technology, Kochi, India (1997).


Professional Experience

  • 2012-2015: Researcher, Department of Geosciences, University of Oslo, Oslo, Norway
  • 2007-2011: Scientist, Norwegian Meteorological Institute, Oslo, Norway
  • 2007: Research Engineer, LSCE/IPSL/CEA, Gif-sur-Yvette, France
  • 2006-2007: Research Engineer, LOCEAN, University Pierre and Marie Curie, Paris, France
  • 2004-2006: Post-Doctoral Researcher, LOCEAN, University Pierre and Marie Curie, Paris, France
  • 1999-2004: Doctoral Researcher, Indian Institute of Sciences, Bangalore, India



Peer-reviewed publications

23) Molteni, F., C. D. Roberts, R. Senan, S. P. E. Keeley, A. Bellucci, S. Corti, R. F. Franco, R. Haarsma, X. Levine, D. Putrasahan, M. J. Roberts, L. Terray  (2019): Boreal-winter teleconnections with the tropical Indo-Pacific rainfall in HighResMIP historical simulations from the PRIMAVERA project. Clim. Dyn., submitted.

22) Müller, O. V., P. L. Vidale, B. Vanniere, R. Schiemann, R. Senan, R. J. Haarsma, J. H. Jungclaus (2019): Land-atmosphere Coupling Sensitivity to GCMs Resolution: A Multi-model Analysis of the Sahel Hotspot. J. Clim., submitted.

21) Vanniere, B. M. J. Roberts, P. L. Vidale, K. I. Hodges, M.-E. Demory, L.-P. Caron, E. Scoccimarro, L. Terray and R. Senan (2019): The moisture budget of tropical cyclones: large scale environmental constraints and sensitivity to model horizontal resolution. J. Clim., submitted.

20) Roberts, M. J. and Co-authors including R. Senan (2019): Projected Future Changes in Tropical Cyclones using the CMIP6 HighResMIP Multi-model Ensemble. Geophys. Res. Lett., submitted. 

19) Bador M., J. Boé, L. Terray, L. V. Alexander, A. Bellucci, R. Haarsma, T. Koenigk, M. -P. Moine, K. Lohmann, D. A. Putrasahan, C. Roberts, M. Roberts, E. Scoccimarro, R. Schiemann, J. Seddon, R. Senan, S. Valcke, B. Vannier (2019): Impact of higher spatial atmospheric resolution on precipitation extremes over land in global climate models. Submitted to JGR Atmospheres.

18) Boé J., L. Terray, M.-P. Moine, S. Valcke, A. Bellucci, S. Drijfhout, R. Haarsma, K. Lohmann, D. Putrasahan, C. Roberts, M. Roberts, E. Scoccimarro, J. Seddon, R. Senan, K. Wyser (2019): Recent summer warming over western Europe in new generation climate models and errors in large-scale circulation trends. Submitted to Environmental Research Letters.

17) Roberts, M. J., J. Camp, J. Seddon, P. L. Vidale, K. Hodges, B. Vanniere, J. Mecking, R. Haarsma4, A. Bellucci, E. Scoccimarro, L.-P. Caron, F. Chauvin, L. Terray, S. Valcke, M.-P. Moine, D. Putrasahan, C.D. Roberts, R. Senan, C. Zarzycki, P. Ullrich (2019): Impact of model resolution on tropical cyclone simulation using the HighResMIP-PRIMAVERA multi-model ensemble. J. Climate, accepted. 

16) Orsolini, Y., M. Wegmann, E. Dutra, B. Liu, G. Balsamo, K. Yang, P. de Rosnay, C. Zhu, W. Wang and R. Senan (2019): Evaluation of snow depth and snow-cover over the Tibetan Plateau in global reanalyses using in-situ and satellite remote sensing observations, The Cryosphere, 13, 2221–2239,

15) Vannière, B., M. E. Demory, P. L. Vidale, R. Schiemann, M. J. Roberts, C. D. Roberts, M. Matsueda, L. Terray., T.Koenigk and R. Senan (2018): Multi-model evaluation of the sensitivity of the global energy budget and hydrological cycle to resolution, Climate Dynamics,

14) Roberts, C. D., R. Senan, F. Molteni, S. Boussetta, M. Mayer, and S. P. E. Keeley (2018): Climate model configurations of the ECMWF Integrated Forecasting System (ECMWF-IFS cycle 43r1) for HighResMIP, Geosci. Model Dev., 11, 3681-3712,

13) Benestad, R. E., R. Senan and Y. J. Orsolini (2016): The use of regression for assessing a seasonal forecast model experiment, Earth System Dynamics 7(4):851-861, doi: 10.5194/esd-7-851-2016.

12) Mesquita, M. d. S., V. Veldore, L. Li, R. Krishnan, Y. Orsolini, R. Senan, M. V. S. Ramarao, and E. Viste (2016), Forecasting India’s water future, Eos, 97, doi:10.1029/2016EO049099.

11) Senan, R., Y. J. Orsolini, A. Weisheimer, F. Vitart, F. J. Doblas-Reyes , T. Stockdale, E. Dutra, D. Basang (2016). Impact of springtime Himalayan-Tibetan Plateau snowpack on the onset of the Indian summer monsoon in coupled seasonal forecasts, Climate Dynamics, doi: 10.1007/s00382-016-2993-y.

10) Y. J. Orsolini, R. Senan, F. Vitart, A. Weisheimer, F. J. Doblas-Reyes (2015): Influence of the Eurasian snow on the negative North Atlantic Oscillation in subseasonal forecasts of the cold winter 2009/2010, Climate Dynamics, doi: 10.1007/s00382-015-2903-8.

9) Orsolini, Y. J., R. Senan, G. Balsamo, F. Doblas-Reyes, F. Vitart, A. Weisheimer, A. Carrasco and R. Benestad (2013): Impact of snow initialization on sub-seasonal forecasts, Climate Dynamics, 41, 1969-1982, doi:10.1007/s00382-013-1782-0.

8) Orsolini, Y. J., R. Senan, R. E. Benestad and Arne Melsom (2012): Autumn atmospheric response to the 2007 low Arctic sea ice extent in coupled ocean-atmosphere hindcasts, Climate Dynamics, 38, 2437-2448, doi:10.1007/s00382-011-1169-z.

7) Benestad, R.E., R. Senan, M. Balmaseda, L. Ferranti, Y. J. Orsolini and A. Melsom (2011): Sensitivity of summer 2-m temperature to sea ice conditions, Tellus, 63A, 324–337, doi: 10.1111/j.1600-0870.2010.00488.x.

6) Sengupta, D., R. Senan, B. N. Goswami and J. Vialard (2007): Intraseasonal variability of equatorial Indian Ocean zonal currents. J. Climate, 20 (13), 3036-3055.

5) Miyama, T., J. P. McCreary, D. Sengupta and R. Senan (2006): Dynamics of biweekly oscillations in the equatorial Indian Ocean. J. Phys. Oceanogr., 36 (5), 827-846.

4) Sengupta, D., R. Senan, V. S. N. Murty and V. Fernando (2004): A biweekly mode in the equatorial Indian Ocean. J. Geophys. Res., 109, C10003, 10.1029/2004JC002329.

3) Senan, R., D. Sengupta and B. N. Goswami (2003): Intraseasonal "monsoon jets" in the equatorial Indian Ocean. Geophys. Res. Lett., 30 (14), 1750, doi:10.1029/2003GL017583.

2) Sengupta, D., B. N. Goswami and R. Senan (2001): Coherent Intraseasonal oscillations of the ocean and atmosphere during the Asian summer monsoon. Geophys. Res. Lett.,  28, 21, 4127-4130.

1) Sengupta, D., R. Senan and B. N. Goswami (2001): Origin of Intraseasonal variability of circulation in the tropical central Indian Ocean. Geophys. Res. Lett., 28, 7, 1267-1270.


Other publications


  • Senan, R. (2004): Intraseasonal variability of the equatorial Indian Ocean circulation. Ph.D. Thesis, Indian Institute of Science, Bangalore, India,119 pp.

thumbnail photo of Retish Senan
Contact Details:
retish . senanecmwf . int