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Rohit Chakraborty

INSPIRE Faculty

Divecha Centre for Climate Change
Indian Institute of Science,
Bengaluru-560012
Karnataka
India

Email: rohitchakrab@iisc.ac.in

Tel: +91-80-2293-3144

Education
Course Institution Board/ University Subject Year of Completion Marks % / CGPA
X Don Bosco School, Bandel C.I.S.C. Science 2004 85.40 %
XII Don Bosco School, Bandel C.I.S.C. Science 2006 87.25 %
B.Tech College of Engineering and Management, Kolaghat West Bengal University of Technology Electronics and Communication 2010 8.66
M.Tech Institute of Radiophysiscs and Electronics University of Calcutta Radiophysics and Electronics 2012 8.89
PhD Institute of Radiophysiscs and Electronics University of Calcutta Radiophysics and Electronics 2017
Skills

GPS Meteorology, Meteorology, Weather, Electronics, Monsoon,

Numerical Weather Prediction, Satellite, Boundary Layer Meteorology, Observation,

Precipitation, Climate Variability, Atmospheric Pollution, Air Quality,

Radiometry, Clouds, Weather Forecast, Lightning

  • 1. Rohit Chakraborty, Arindam Chakraborty, Ghouse Basha, Venkat Ratnam Madineni: Lightning occurrences and intensity over the Indian region: long-term trends and future projections. Atmospheric Chemistry and Physics 07/2021; 21: 11161-11177.
  • 2. Rohit Chakraborty, Bijay Kumar Guha, Shamitaksha Talukdar, Madineni Venkat Ratnam, Animesh Maitra: Growth in mid-monsoon dry phases over the Indian region: prevailing influence of anthropogenic aerosols. Atmospheric Chemistry and Physics 10/2019; 19(19):12325-12341.,
  • 3. Shamitaksha Talukdar, M. Venkat Ratnam, V. Ravikiran, Rohit Chakraborty: Influence of Black Carbon Aerosol on the Atmospheric Instability. 04/2019;, DOI:10.1029/2018JD029611
  • 4. Rohit Chakraborty, Venkat Ratnam Madineni, Ghouse Basha: Long-term trends of instability and associated parameters over the Indian region obtained using a radiosonde network. Atmospheric Chemistry and Physics 10/2019; 19(6): 3687–3705.
  • 5. Animesh Maitra, Gargi Rakshit, Soumyajyoti Jana, Rohit Chakraborty: Effect of Boundary Layer Dynamics on the Profiles of Rain Drop Size Distribution During Convective Rain. IEEE Geoscience and Remote Sensing Letters 01/2019; PP(99):1-5., DOI:10.1109/LGRS.2019.2891906
  • 6. Rohit Chakraborty, Ghouse Basha, M. Venkat Ratnam : Diurnal and long-term variation of instability indices over a tropical region in India. Atmospheric Research, 207, 145-154.
  • 7. Animesh Maitra, Rohit Chakraborty: Prediction of Rain Occurrence and Accumulation using Multifrequency Radiometric Observations. IEEE Transactions in Geoscience and Remote Sensing, 56(5), 2789-2797, 2018. DOI: 10.1109/TGRS.2017.2783848.
  • 8. Rohit Chakraborty, Upal Saha, A.K. Singh, Animesh Maitra: Association of atmospheric pollution and instability indices: A detailed investigation over an Indian urban metropolis. Atmospheric Research 11/2017; 196:83-96., DOI:10.1016/j.atmosres.2017.04.033
  • 9. Bijay Kumar Guha, Rohit Chakraborty, Upal Saha, Animesh Maitra: Tropopause height characteristics associated with ozone and stratospheric moistening during intense convective activity over Indian sub-continent. Global and Planetary Change 09/2017; 158.,
  • 10. Rohit Chakraborty, Shamitaksha Talukdar, Upal Saha, Soumyajyoti Jana, Animesh Maitra: Anomalies in relative humidity profile in the boundary layer during convective rain. Atmospheric Research 07/2017; 191:74-83., DOI:10.1016/j.atmosres.2017.03.011
  • 11. Nandita D. Ganguly, Rohit Chakraborty, Animesh Maitra: Can Nor'wester events initiate stratospheric moistening?. Journal of Atmospheric and Solar-Terrestrial Physics 07/2017; 164., DOI:10.1016/j.jastp.2017.07.015
  • 12. Upal Saha, Rohit Chakraborty, Animesh Maitra, A.K. Singh: East-west coastal asymmetry in the summertime near surface wind speed and its projected change in future climate over the Indian region. Global and Planetary Change 05/2017; 152:76-87., DOI:10.1016/j.gloplacha.2017.03.001,
  • 13. Saurabh Das, Rohit Chakraborty, Animesh Maitra: A random forest algorithm for nowcasting of intense precipitation events. Advance in Space Research, Volume 60, Issue 6, p. 1271-1282.
  • 14. Rohit Chakraborty, Animesh Maitra: Retrieval of atmospheric properties with radiometric measurements using neural network. Atmospheric Research 11/2016; 181:124–132., DOI:10.1016/j.atmosres.2016.05.011
  • 15. Rohit Chakraborty, Saurabh Das, Animesh Maitra: Prediction of convective events using multifrequency radiometric observations at Kolkata. Atmospheric Research 03/2016; 169(Part-A):24–31.
  • 16. Saurabh Das, Souvik Majumder, Rohit Chakraborty, Animesh Maitra: Simplistic approach for water vapour sensing using a standalone global positioning system receiver. IET Radar, Sonar & Navigation 10/2014; 8(8):845-852., DOI:10.1049/iet-rsn.2013.0312
  • 17. Rohit Chakraborty, Saurabh Das, Soumyajyoti Jana, Animesh Maitra: Nowcasting of rain events using multi-frequency radiometric observations. Journal of Hydrology 05/2014; 511-513., DOI:10.1016/j.jhydrol.2014.03.066
Conference Proceedings
  • rijit De, Rohit Chakraborty, Animesh Maitra: Radiometric measurements of cloud attenuation over Earth-space path at a tropical location. URSI-GASS 2017; 08/2017, DOI:10.23919/URSIGASS.2017.8105203
  • ● R Chakraborty, A Maitra: Boundary layer anomalies observed from radiometric observations during convective rain. URSI-GASS 2017, Montreal Canada; 08/2017, DOI:10.23919/URSIGASS.2017.8105104
  • ● Animesh Maitra, Rohit Chakraborty: Rain Prediction Using Radiometric Observations at a Tropical Location. URSI-GASS 2017, Montreal Canada; 08/2017, DOI:10.23919/URSIGASS.2017.8105124
  • ● Rohit Chakraborty, Goushe Basha, M Venkat Ratnam: Long term climatology of instability indices over Gadanki, a tropical region in India. UPCAR-2017, Tirupati; 06/2017
  • ● Soumyajyoti Jana, Rohit Chakraborty, Animesh Maitra: Prediction of Lightning strikes using Electric Field at a Tropical Location. 12th International Conference on Microwaves, Antennae, Propagation and Remote Sensing, Jodhpur, India; 02/2017
  • ● Gargi Rakshit, Rohit Chkraborty, Animesh Maitra: Effect of vertical wind on rain drop size distributions in the boundary layer. International Symposium on Antennas and Propagation (ISAP 2016) Okinawa, Japan, 24-28 October 2016, Okinawa Convention Center, Ginowan, Okinawa, Japan; 10/2016
  • ● Animesh Maitra, Soumyajyoti Jana, Rohit Chaktaborty: Convective rain study with radiometer, radar and electric field observations at a tropical location. Proceedings of ISAP2016, Okinawa, Japan; 10/2016
  • ● Gargi Rakshit, Rohit Chakraborty, Animesh Maitra: Effect of vertical wind on rain drop size distributions in the boundary layer. Proceedings of ISAP2016, Okinawa, Japan; 10/2016
  • ● Animesh Maitra, Rohit Chakraborty, Soumyajyoti Jana: Prediction of convective rainfall using multitechnique observations. 2016 URSI Asia-Pacific Radio Science Conference, Seoul, Korea; 08/2016, DOI:10.1109/URSIAP-RASC.2016.7601354
  • ● Soumyajyoti Jana, Arpita Adhikary, Rohit Chakraborty, Animesh Maitra: Behaviour of Atmospheric Electric Field at a Tropical Location. National Space Science Symposium (NSSS 2016), Thiruvananthapuram; 02/2016
  • ● Shamitaksha Talukdar, Rohit Chakraborty, Thumree Sarkar, Soumyajyoti Jana, Animesh Maitra: Signature of Earthquakes on Tropospheric temperature profiles. National Space Science Symposium (NSSS 2016), Thiruvananthapuram; 02/2016
  • ● Soumyajyoti Jana, Rohit Chakraborty, Thumree Sarkar, Animesh Maitra: Multi-technique observations of a hailstorm event at a tropical location. Conference on Computers and Devices for Communication (CODEC 2015), Kolkata; 12/2015
  • ● Bijay Kumar Guha, Bidisha Nandy, Rohit Chakraborty, Animesh Maitra: Rain Attenuation over Earth Space Path from Radar and Propagation Measurements at Tropical Location. CODEC 2015, Kolkata; 12/2015, DOI:10.1109/CODEC.2015.7893173
  • ● Rohit Chakraborty, Animesh Maitra: Estimation of path integrated attenuation using ground rain rate measurements at tropical location. International Conference on Microwaves Antennae Propagation and Remote Sensing (ICMARS 2015), Jodhpur (Rajasthan); 12/2015
  • ● Rohit Chakraborty, Soumyajyoti Jana, Thumree Sarkar, Animesh Maitra: Multi-technique observations of a hailstorm event. International Conference on Microwaves Antennae Propagation and Remote Sensing (ICMARS 2015), Jodhpur (Rajasthan); 12/2015
  • ● Rohit Chakraborty, Animesh Maitra: Prediction of accumulated rain using brightness temperature observations at a tropical location. URSI Regional Conference on Radio Science (RCRS 2015), New Delhi; 11/2015
  • ● Sneha Banerjee, Rohit Chakraborty, Animesh Maitra, S K Mitra: A comparative study of liquid water profiles over Indian Subcontinent using CLOUDSAT data. INTERNATIONAL CONFERENCE IN MICROWAVES ANTENNAE PROPAGATION AND REMOTE SENSING, JODHPUR; 12/2014
  • ● Rohit Chakraborty, Sumutaksha Talukdar, Animesh Maitra, S K Mitra: Relative Humidity anomalies due to boundary layer meteorology during rain. INTERNATIONAL CONFERENCE IN MICROWAVES ANTENNAE PROPAGATION AND REMOTE SENSING, JODHPUR; 12/2014
  • ● Arijit De, Rohit Chakraborty, Animesh Maitra, S K Mitra: Studies on rain induced scintillation during convective events over Kolkata. INTERNATIONAL CONFERENCE IN MICROWAVES ANTENNAE PROPAGATION AND REMOTE SENSING, JODHPUR; 12/2014
  • ● Animesh Maitra, Soumyajyoti Jana, Rohit Chakraborty, Souvik Majumder, S K Mitra: Multitechnique observations of convective rain events at a tropical location. URSI-GAAS 2014, Beijing,China; 08/2014, DOI:10.1109/URSIGASS.2014.6929640
  • ● Rohit Chakraborty, Thumree Sarkar, Soumya jyoti Jana, Arpita Adhikary, Animesh Maitra: Signature of Convective Phenomena on Atmospheric Electric Field. National Space Science Symposium(NSSS), Dibrugarh; 01/2014
  • ● Rohit Chakraborty, Saurabh Das, Animesh Maitra: Convective activities and atmospheric instabilty: radiometric observations at Kolkata. RCRS 2014; 01/2014
  • ● Rohit Chakraborty, Soumyajyoti Jana, Saurabh Das, Animesh Maitra: Prediction of Convective activities using Radiometric observations at Kolkata. International Conference of Microwave Antenna and RemoteSensing (ICMARS), Jodhpur; 12/2013
  • ● Soumyajyoti Jana, Thumree Sarkar, Rohit Chkraborty, Saurabh Das, Animesh Maitra: Some studies on convective rain associated with Indian summer monsoon using radar, radiometer and disdrometer. International Conference of Microwave Antenna and Remote Sensing (ICMARS), Jodhpur; 12/2013
  • ● Saurabh Das, Rohit Chakraborty, Shamitaksha Talukdar, Animesh Maitra: Nowcasting of tropical rain using dual frequency atmospheric brightness temperatures at Kolkata. CODEC-2012 (IEEE), KOLKATA; 12/2012
  • Souvik Majumder, Rohit Chakraborty, Saurabh Das, Animesh Maitra: Observations Of Water Vapor With GPS Receiver, Radiometer And Radiosonde At A Tropical Location. International Conference of Microwave Antenna and RemoteSensing (ICMARS), Jodhpur; 12/2012
  • ● Rohit Chakraborty, Saurabh Das, Shamitaksha talukdar, Animesh Maitra: Some Features Of Microwave Brightness Temperatures For Nowcasting Applications At Kolkata. International Conference of Microwave Antenna and Remote Sensing (ICMARS), Jodhpur; 12/2012
Awards & Grants:

Apr 2017 Grant: National Post-Doctoral Fellowship

Apr 2017 Award: Young Scientist Award from India in URSI GASS 2017

Jun 2019 Grant: C V Raman Post-Doctoral Fellowship

Apr 2020 Grant: INSPIRE Faculty

Jun 2020 Award: Young Scientist Award from India in URSI GASS 2020

May 2021 Award: Young Scientist Award from India in URSI GASS 2021

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Main Research Areas
  • ▪Investigation of long term trends in lightning activity over the Indian Region
  • ▪ Qualitative and quantitative prediction of intense convective rainfall using brightness temperatures at 22, 31 and 58 GHz and instability data from ground based multifrequency radiometric observations.
  • ▪ Use of electric field observations for detection and nowcasting of lightning strikes in 20 km radius
  • ▪ Investigation of planetary boundary dynamics from radiometric and radar observations during convective rain
  • ▪ Study on long term trends of instability from re-analysis datasets
  • ▪ Calculation of atmospheric instability and investigation on long term trends of thunderstorm severity from multi-station radiosonde observations.
  • ▪ Investigation of retrieval techniques to obtain reliable profiles of temperature and relative humidity from multi-frequency radiometric observations
Other relevant research skills

During the past 7 years of my research, I have gathered significant experience in handling, operation and maintenance of precipitation measuring instruments such as radiometer, radar, disdrometer, optical rain gauge, electric field mill and lightning detectors. Apart from this, I also have a sound knowledge in MATLAB and am conversant with a lot of data handling applications such as neural networks, multi-variant regression analysis, principal components and empirical mode decompositions. After my PhD, my current field of research involves the launching and operation of daily GPS radiosondes, whose profiles are utilized for short and long term investigation of thunderstorm severity over the tropical Indian region.

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