Dr. Satyaban Bishoyi Ratna

Scientist-E, Climate Monitoring and Prediction

India Meteorological Department

Email: satyaban.ratna@imd.gov.in

I am a Scientist at the India Meteorological Department, Pune, India since March 2021. Prior to this, I had worked in Climatic Research Unit, School of Environmental Sciences-University of East Anglia, United Kingdom (2017-2021), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan (2010-2013, 2014-2017), Euro-Mediterranean Center on Climate Change (CMCC), Italy (2013-2014), and Centre for Development of Advanced Computing (CDAC), India (2008-2010).

My work aims to advance our knowledge of largescale ocean-atmosphere interactions and its influence on climate. In particular, I am interested in the problems of the role of the ocean on climate variability ranging from interannual to multidecadal time scales and diagnosing physical mechanisms. Some of the examples of my study include ocean-atmosphere interactions through El Niño–Southern Oscillation (ENSO)/Indian Ocean Dipole (IOD) and their interactions with Indian summer monsoon, understanding the response of the Asian climate to Atlantic Multidecadal Oscillation (AMO), etc. I do my research using a combination of atmospheric models, model output (CMIP5/CMIP6), observation, reanalysis, and proxy data - to study various weather and climate processes with spatial scale ranging from mesoscale to synoptic scale and timescale ranging from short range to multidecadal climate.

The goal of my research is to understand physical processes that control the climate systems and to improve our ability to predict climate variability and change. Also, to provide improved climate services to user sectors for the benefit of society.

Recently, in my current capacity at the India Meteorological Department, I started involving more with operational climate predictions and services - this includes seasonal climate forecast over India, ENSO/IOD forecast bulletins, climate monitoring and analysis, climate summary of India, and teaching climate sciences to meteorological personals at the Meteorological Training Institute, Pune. Also, as a member of the WMO Regional Climate Centre (RCC Pune), I contribute organising South Asian Climate Outlook Forum (SASCOF) and Climate Services User Forum (CSUF) in collaboration international organisations and National Meteorological and Hydrological Services (NMHSs) of South Asia.

I have a M.Sc degree in Oceanography and M.Tech. degree in Atmospheric Sciences. In 2009, I received my Ph.D. in Meteorology from the Department of Meteorology and Oceanography, Andhra University, India, and my doctoral research was focused on the numerical modelling of Indian summer monsoon processes.

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  • Large-scale Ocean-Atmosphere interactions

  • Climate variability and Change

  • Climate Modelling (Global/Regional)

  • Dynamics of Extreme Weather Events

  • Indian Summer Monsoon variability and prediction

  • Climate Services

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