Profile

Dr. R. VishnuM. Sc., M. Phil., Ph. D.Assistant Professor E-mail : This email address is being protected from spambots. You need JavaScript enabled to view it. Phone : +91 9847194729

 

Profile

Professional Career

2013 - Present: Assistant Professor of Physics, Sree Krishna College, Guruvayur

2012 - 2013: Post Doctoral Fellow, NCESS, Thiruvananthapuram

2008 - 2012: Project Fellow and Research Scholar, NCESS

2005-2006: Project Fellow, NCESS

Membership in International Professional Bodies

COSPAR (Committee on Space Research) Associate, France

Training programs attended

SERC School on ‘Electro Dynamical Coupling of Atmospheric Regions.’ Indian Institute of Geomagnetism (2010).

Expertise in the field

Resource Person/Disaster Management Expert - Lightning

Awards

Awards/ Achievements

Young Scientist Award (2008) by the Kerala State council for Science, Technology and Environment (KSCSTE), Govt. of Kerala

Post Doctoral Fellowship-2011 by the KSCSTE, Govt. of Kerala

Awarded Foreign Travel Grants from

  • Committee on Space Research (COSPAR), France for attending the 38th scientific assembly of COSPAR held at Germany.
  • Indian National Science Academy
  • Council of Scientific and Industrial Research, India

Awarded Foreign Travel Grant from

  • World Meteorological Organization (WMO), Switzerland for attending the YOTC-AMY workshop held at China.

Awarded Foreign Travel Grants from

  • Department of Science and Technology, Govt. of India
  • Council of Scientific and Industrial Research, India for attending the 7th Asia-Pacific International Conference on Lightning held at Chengdu, China.

Awarded as Principal Investigator-‘Electrical Characteristics of Thunderclouds and Lightning’ (KSCSTE-KSCS -14)

Awarded as, Principal Investigator (KSCSTE-KSCS-27, Post Doctoral Program)

Pubications

LIST OF PUBLICATIONS

An investigation on the consequential features of 2007 southwest monsoon onset and super cyclone ’GONU’ using satellite, model and ground based data” Hamza Varikoden, R. Harikumar, C.A. Babu, R. Vishnu and G. Mohan Kumar., J. Ind. Geophysical Union, 2014

Investigation of Convective Thundercloud Development over Western Ghats Mountain Slope in Kerala, R. Vishnu, V. Anil Kumar, Hamza Varikoden, K. Sarath Krishnan, T. S. Sreekanth, V.N. Subi Symon, S. Murali Das & G. Mohan Kumar, Current Science , 104, 2013

Abnormal modulation of atmospheric parameters during the Tsunami of 2004, R. Vishnu, Hamza Varikoden, V. Anil Kumar, S. Murali Das, G. Mohan Kumar and V. N. Subi Symon, Current Science , 102, 11, 2012

Detection of possible thunderstorm formation inferred from weather element changes at ground level on a mountain slope, R. Vishnu, S. Murali Das, S. Sampath and G. Mohan Kumar, J. Lightning Research, 2, 12-24, 2010.

Observational study of cloud base height and its frequency over a tropical station, Thiruvananthapuram using Ceilometer, Hamza Varikoden, R. Harikumar, R. Vishnu, V. Sasi Kumar, S. Sampath, S. Murali Das and G. Mohan Kumar, Int. J. Remote Sensing, 1-14, DOI: 10.1080/01431161.2010.542199, 2011.

Atmospheric electric parameters and micrometeorological processes during the solar eclipse on 15 January 2010, C. P. Anil Kumar, R. Gopalsingh, C. Selvaraj, K. U. Nair, H. J. Jayakumar, R. Vishnu, S. Muralidas & N.Balan, J. Geophys. Res., DOI: 10.1002/jgrd.50437, 2013.

Feasibility of forewarning high lightning incidence by electric field measurements, V. Anil Kumar, R. Vishnu, V. N. Subi Symon, S. Murali Das & G. Mohan Kumar, J. Ind. Geophysical Union, 17,4, 361-368, 2013.

‘Experimental Detection of Convective Thundercloud Formation- An investigation to understand the formation of thunderclouds in a region of high lightning incidence’ (2012) R. Vishnu, LAP Lambert Academic Publishing, Germany, ISBN: 978-3-659-18766-7

Study of Urban/Rural cooling rates in Thiruvananthapuram, Kerala, Shareekul Ansar, C.R. Dhanya, George Thomas, Aswathy Chandran, Liji John, S. Prasanthi, R. Vishnu, E.J. Zachariah, J. Ind. Geophysical Union, 16, 29-36, 2012.

Conference

International Conferences attended

38th Scientific Assembly of Committee on Space Research, 2010, Germany.

American Geophysical Union (AGU) Chapman Conference on Extreme Events, 2010.

YOTC-AMY workshop, Beijing, 2011, China.

7th Asia Pacific International Conference on Lightning, Chengdu, 2011, China.

Publications in International Conference Proceedings

Measurements of cloud characteristics with a Ceilometer and supporting measurements with a water based Condensation Particle Counter, R. Vishnu, S. Murali Das, G. Mohan Kumar, Hamza Varikoden and S. Sampath, 38th scientific assembly of Committee on Space Research, July 18-25, Germany, 2010.

A modified Electric Field Mill and measurements of cloud electric field with it at a tropical coastal station, R. Vishnu, S. Murali Das, G. Mohan Kumar and S. Sampath, 38th scientific assembly of Committee on Space Research, July 18-25, Germany, 2010.

Characteristics of southwest monsoon clouds over a tropical station using a Ceilometer and a modified Electric Field Mill, R. Vishnu, V. Anil Kumar, K. Sarat Krishnan, Hamza Varikoden, V. N. Subi Symon, S. Murali Das and G. Mohan Kumar, YOTC-AMY Workshop, May 16-18, Beijing, China, 2011.

Formation of thunderclouds in a region of high lightning incidence inferred from AWS, Ceilometer and an Electric Field Mill, R. Vishnu, V. Anil Kumar, T. S. Sreekanth, V. N. Subi Symon, S. Murali Das and G. Mohan Kumar, 7th Asia Pacific International Conference on Lightning, Chengdu, China, 2011.

Investigations into cause of high lightning incidence and accidents by it in a region with relatively special characteristics, R. Vishnu, S. Murali Das, G. Mohan Kumar and S. Sampath, AGU Chapman Conference on Extreme Events, Feb. 15-19, India, 2012.

Study of changes in atmospheric electric parameters during solar eclipse transit stages, C. P. Anil Kumar, C. Panneerselvam, R.Gopalsingh , C. Selvaraj K. U. Nair and S. Gurubaran, R.Vishnu, V.N. Subi Symon and S. Murali Das, XIV International Conference on Atmospheric Electricity, August 08-12, Rio de Janeiro, Brazil, 2011.

Thundercloud formation in a tropical region having relatively special characteristics, R. Vishnu, V. Anil Kumar, V. N. Subi Symon and G. Mohan Kumar, 39th scientific assembly of Committee on Space Research, July 14-22, Mysore, India, 2012.

Concentration and characteristics of Condensation Nuclei at Thiruvananthapuram, a tropical coastal site, V. Anil Kumar, R.Vishnu, V.N. Subi Symon and G. Mohan Kumar, 39th scientific assembly of Committee on Space Research, July 14-22, Mysore, India, 2012.

Comparison of Condensation particle Concentration at two geographically different locations and its relation with weather parameters, V.N. Subi Symon, V. Anil Kumar, R.Vishnu, and G. Mohan Kumar, 39th scientific assembly of Committee on Space Research, July 14-22, Mysore, India, 2012.

Simultaneous observations of rain, weather & their microphysical parameters during the tropical cyclone episode KEILA at the Kerala coast, Sreekanth T S, Vishnu R, Anil Kumar V, Subi S & Mohan Kumar G, Second International conference on Indian Ocean Tropical Cyclones and Climate Change 14-17 Feb 2012, New Delhi, India

Charcterisation of tropical rainfall in terms of size distribution and its seasonal variations in a tropical coastal site, T S, Sreekanth, R. Vishnu, V, Anil Kumar, G. Mohan Kumar and V. Sasi Kumar, 39th scientific assembly of Committee on Space Research, July 14-22, Mysore, India, 2012.

Publications in National Conference Proceedings

Sudden vertical motion of clouds in relation with pressure variation and wind direction, K. Sarath Krishnan, R. Vishnu, V. N. Subi Simon and S. Murali Das, 47th Annual Convention of Indian Geophysical Union, Dec. 8-10, Hyderabad, 2010.

Abnormal changes in weather elements and CO concentration observed on 26-12-04, the Tsunami day, R. Vishnu, G. Mohan Kumar, S. Murali Das, R. Anjali and S. Sampath, 46th Annual Convention of Indian Geophysical Union, Oct. 5-7, Dehradun, 2009.

Detection of thundercloud formation over a mountain slope using Lidar and supporting measurements with a modified Electric Field Mill, R. Vishnu, V. Anil Kumar, V.N. Subi Symon, S. Murali Das and G. Mohan Kumar, ARWPCC-2011, Mar. 10-11, Tirupati, 2011.

Detection of instability leading to thundercloud formation, R. Vishnu, S. Murali Das and G. Mohan Kumar, Kerala Science Congress, Jan. 28-31, Thiruvananthapuram, 2008.

Investigation of thundercloud formation near mountains, R. Vishnu, S. Murali Das, S. Sampath and G. Mohan Kumar, National Space Science Symposium, Ooty, Feb. 26-29, 2008.

Changes in atmospheric electrical parameters during solar eclipse transit stages during 15th January,2010, C. P. Anil Kumar, C. Panneerselvam, H. Johnson Jeyakumar, R.Gopalsingh, C.Selvaraj, K.U.Nair, S.Gurubaran, R. Vishnu, V.N.Subi Symon and S.Murali Das National Workshop on Solar Eclipse,pp(122-124), Space Physics Laboratory, VSSC, Trivandrum, 27-28, 2011.

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