Roxy Mathew Koll

Roxy Mathew Koll, IITMDr. Roxy Mathew Koll is a Climate Scientist at the Indian Institute of Tropical Meteorology, and an Adjunct Associate Professor at the University of Pune. Before joining IITM, he worked as a Research Scientist at the Euro-Mediterranean Centre on Climate Change, Italy. He did his PhD in Ocean and Atmospheric Dynamics from the Hokkaido University, Japan.

Roxy is currently leading research on Indian Ocean warming – its extent, and impact on the monsoon and marine productivity. He is a member of the CLIVAR Indian Ocean Panel. He was named the Kavli Fellow by the U.S. National Academy of Sciences in 2015.


Centre for Climate Change Research | Indian Institute of Tropical Meteorology
Pashan, Pune 411008, India | Off: +91 20 25904543 Cell: +91 9405015676 

Work/Research Experience

Scientist, Centre for Climate Change Research, Indian Institute of Tropical Meteorolgy, Ministry of Earth Sciences.
Apr 2010 – Present

Adjunct Professor, University of Pune, India.
Aug 2013 – Present

Adjunct Faculty, Meteorological Training Institute, IMD, Pune, India.
Aug 2013 – Present

Adjunct Faculty, Centre for Advanced Training in Earth System Science and Climate, IITM/MoES.
Aug 2011 – Present

Visiting Scientist, Faculty of Environmental Earth Sciences, Hokkaido University, Japan.
July 2014 – Aug 2014

Visiting Scientist, National Centers for Environmental Prediction, NOAA, Maryland, USA.
Mar 2012 – May 2012

Postdoctoral Research Associate, Euro-Mediterranean Centre for Climate Change, Italy.
Feb 2008 – Mar 2010

Research Assistant (Japanese Govt. Center of Excellence) at Hokkaido University, Japan.
Apr 2004 – Jul 2007

Junior Research Fellow (CSIR), National Institute of Oceanography, India.
Feb 2003- Feb 2004.

Academic Qualifications

PhD in Ocean & Atmospheric Sciences, Hokkaido University, Sapporo, Japan. Jun 2007.

MSc Physical Oceanography, Cochin University of Science & Technology, Kochi, India with 2nd rank. Feb 2003.

Research Interests

Climate Change/Variability Research and Earth System Modeling, Ocean Atmospheric Dynamics and Interaction, Tropical Intraseasonal Variability, Indian Ocean and the Asian monsoon, SST – Convection Feedback.


Joint Principal Investigator, Ministry of Earth Sciences – National Monsoon Mission project on “Impacts of ocean-atmosphere coupling and SST high-frequency variability on the coupled simulation of the mean state of the Indian summer monsoon”.

Administrator and Co-founder, Oceanographers Net, largest online oceanographic community,

Governing Council Member, Ocean Society of India.

Editorial Board Member, Ocean Digest.

Convener and chair at the Atmospheric Science Section on “Monsoon, Climate Change and Extreme Weather Events”, AOGS 2014, Japan. Top 16 among 176 scientific sessions.

Convener and chair at the Atmospheric Science Section on “Ocean-Atmospheric Processes in the Dynamics of the Asian Monsoon”, AOGS 2013, Australia.

Convener and chair at the Ocean Science Section on “Climate variability in the Asia-Oceania region”, AOGS 2010, Hyderabad.

Reviewer of scientific journals: J.Climate, Climate Dynamics, Mon.Wea.Rev., J.Met.Soc.Japan, Atmopheric Research, Int.J.Climatology, Tellus

Editor, Ocean Section, Asia Oceania Geosciences Society (AOGS) Newsletter, 2006-’07.

Executive Member, Co-founder and Web Administrator, Hokkaido University International Students Association, 2005-’07.

Cruise/Observational Experience

Kuroshio Extension System Study (KESS) cruise, 15 June – 18 July, 2005 on US R/V Roger Revelle.

Arabian Sea Monsoon Experiment (ARMEX) cruise, 13 March – 10 April, 2003 on R/V Sagar Kanya.

On board Oceanographic skills: Radio Sonde, SODAR, CTD operation, LADP.

Numerical Modeling

Experience in Earth System Model (ESM) development. Expertise in utilizing coupled atmosphere ocean sea-ice general circulation models such as NCEP Climate Forecast System v2 (CFSv2) and INGV-SXG (SINTEX).

Experience in using IBM P6/NEC SX-8 supercomputers for climate modeling.

Scientific/Computational Skills

Processing: MatLab, CDO (Climate Data Operators), NCL (NCAR)

Visualization: Ferret, GRaDS, GMT

Shell scripting on Unix/Linux platforms.

Lecture on Data Analysis and Visualization using CDO and Ferret [pdf]

Other Computing Skills
Higher Diploma in Software Engineering (1998-2001), APTECH Computer Education (ISO), India.

Operating Systems: Unix/Linux/Aix/Solaris/Windows

Languages: C++, Visual Basic 6.0, FORTRAN 95/77, PHP, HTML, novice in PERL.

Database: SQL, MS Access, Oracle 9.0.

Office tools: MS Office, Website designing, Adobe Photoshop & Illustrator.


Member of the CLIVAR Indian Ocean Region Panel for the period 2016-2018. The CLIVAR Panel provides scientific and technical oversight for implementation of the sustained ocean observing system for the Indian Ocean and coordinates research on the role of the Indian Ocean on the climate system.

Kavli Fellow of the U.S. National Academy of Sciences [NAS].  Kavli fellows are selected by the members of the National Academy of Sciences. Since its inception in 1989, more than one hundred seventy five of its “alumni” have been elected to the National Academy of Sciences, and ten have received Nobel Prizes.

AOGS 2014 main convener of Top 16 scientific sessions (among 176 sessions), Sapporo, Japan, July 2014.

Best Poster Award (out of 48 scientific posters), International Symposium on “Sustainable Development”, Hokkaido University, August 2006.

Research Assistantship under 21st Century Center of Excellence (COE), Japanese Government, 2003 – ’07
JGC Corporation – Saneyoshi Scholarship, 2006 – ’07
Hokkaido University International Student Center Scholarship, 2006 – ’07

Council of Scientific and Industrial Research, India – Junior Research Fellowship (National Level), 2002 – 04
UGC – National Eligibility Test, 2002 (Science Lectureship in Universities and colleges across India.)

Postgraduate merit scholarship for M.Sc Oceanography, Cochin University of Science & Technology, 2000 – ’02

TOEFL: Total score: 273/300 Essay: 6.0/6.0

Trekking along the foothills of the Himalayas 😉
First Prize in English Essay (2000), CMS college, Kottayam
First Prize in English Poetry (1999), CMS college
Second Prize in English Poetry (2000), CMS college
First Prize in Malayalam Poetry (1993), Girideepam Bethany High School , Kottayam
Best actor and first prize in Drama
Prizes in Long Race Competitions, First Prize in Caroms
Gold Medal Award for Science at school level
Prize in Mathematics Project, Prizes in Quiz competitions