Dr.T.V. Lakshmi Kumar


Research Assistant Professor

Dr.T.V. Lakshmi Kumar, joined Department of Physics, SRM Institute of Science and Technology (formerly known as SRM University) in 2009 after completing his Ph.D from Andhra University in the year 2008. Later he has come to SRM Research Institute in March 2016. Lakshmi Kumar works in the areas of hydrometeorology and aerosol science. He established a research laboratory at SRM Institute of Science and Technology (formerly known as SRM University) to carry out the research in atmospheric sciences and meteorology and the infrastructure of the laboratory is funded by the government agencies such as ISRO RESPOND, SPL, DST SERB etc. He has completed two projects sponsored by ISRO RESPOND and DST Fast track Young Scientist Scheme on TRMM rainfall comparison with IMD gridded data and the sensitivity of agroclimatic indices to satellite Normalized Difference Vegetation Index data over India respectively. Presently, he is the Principal Investigator of two projects on aerosol characteristics over Chennai and Moisture recycling and Atmospheric Residence times over India funded by Space Physics Laboratory, VSSC, Trivandrum and DST SERB respectively. One student is awarded with Ph.D degree under his guidance for her work on aerosol shortwave radiative forcing over Chennai. Two research students are currently pursuing Ph.D in moisture recycling and drought monitoring from remote sensing techniques. He is also the Co Principal Investigator of a Ministry of Earth Sciences, Govt of India project on Satellite Meteorology Cell at SRM Institute of Science and Technology (formerly known as SRM University). 

My Research Interests are;

Physical Characterization of aerosols

  • Size and number distribution of aerosols
  • Radiative forcing of aerosols
  • Impact of synoptic meteorology on aerosols., etc

Hydro meteorological Studies

  • Droughts and extreme weather events with reference to remote sensing applications
  • Climate Variability and moisture recycling

Research Facilities in Lakshmi Kumar's lab (Atmospheric Science Research Laboratory)

  • Aethalometer - To measure Black Carbon  Mass Concentration
  • Handheld Sunphotometer-To measure Aerosol Optical Depth
  • Multiwavelength Radiometer- To measure Aerosol Optical Depth and Columnar water vapor
  • Net Radiometer- To measure incoming/outgoing solar radiation
  • High Volume Sampler- To measure Particulate Matter (PM10)
  • Laser Precipitation Monitor-To measure rain drop size and rain intensity
  • ERDAS Imagine- For satellite image processing
  • Mini Micro Pulse LIDAR- For aerosol extinction ( Satellite Meteorology Cell)

Research Grants with Dr. Lakshmi Kumar


Title of the project

Funding Agency & Period



Studies on moisture recycling and atmospheric residence times over India and its adjoining oceans

DST SERB; June 2015 to May 2018

Principal Investigator


Studies on characteristics of aerosols over Chennai

ISRO, July 2010 to June 2017

Principal Investigator


Satellite Meteorology Cell

MoES, Mar 2015 to Mar 2020

Co Principal Investigator


Satellite NDVI Image analysis and its sensitivity to climate indices

DST Fast track Young Scientist Scheme, Apr 2012 to Mar 2016

Principal Investigator


Development of a technique (training and genetic algorithm) for improved satellite rainfall estimation over India

ISRO RESPOND, July 2010 to June 2013

Principal Investigator




Faculty In-charge

  • Dr.T.V. Lakshmi Kumar - Research Assistant Professor

Doctoral Students

  • Ms. G. Purna Durga
  • Mr. M. Ashok Williams
  • Mr. Moni Kumar (Part Time - International)
  • Mr. J.S. Bharath


  • Ph.D
    • Dr. K. Aruna - Ph.D in July 2016
    • Dr. R. Uma - Ph.D in May 2018
    • Dr. S. Madhu – Ph.D in Dec 2019
    • Dr. Manoj Kumar Thakur – Ph.D in Aug 2020
  • UG & PG
    • Mr. Ajay - M.Sc Dissertation
    • Mr. Ravindran - M.Sc Dissertation
    • Mr. Alvin Singh - M.Sc Dissertation
    • Mr.  Kishore - M.Sc Dissertation
    • Mr. Gokul- M.Sc Dissertation
    • Ms. Prava - B.Sc Dissertation
    • Mr. Jeffry  - B.Sc Dissertation
    • Ms. Elavarasi - B.Sc Dissertation
  • Lakshmi Kumar, T.V., Purna Durga et al, Connection of quazi resonant amplification to the delay in atmospheric residence times over India (2021). Accepted. Frontiers in Earth Sciences, doi: 10.3389/feart.2021.615325
  • Rao, V.B., Koteswara rao, K., Mahednra, B., Lakshmi Kumar,  TV and Govardhan (2021) Large scale connection to deadly Indian heat waves,(2021) Quarterly Journal of Royal Meteorological society,
  • Franklin, P., Barbosa, H., Jason,G., Lakshmi Kumar, T.V., Thakur, M and Buriti (2021) Long tern spatiotemporal variation of droughts in the Amazon river basin, Water,
  • Koteswara rao,K., T.V. Lakshmi Kumar et al, 2020, Projections of heat stress and associated work performance over India in response to global warming, Scientific Reports, Oct 2020,
  • K. Koteswara Rao, Ashwini Kulkarni, Savita Patwardhan, B. Vinod Kumar and T.V. Lakshmi Kumar (2020) Future changes in precipitation extremes during northeast monsoon over south peninsular India, Theoretical and Applied Climatology, doi:10.1007/s00704-020-03308-y
  • Manoj, K., Srinivas, D., Naga Rajesh, A., Koteswara Rao, K, Narayanan, M.S and T.V. Lakshmi Kumar* (2020) Exploring the satellite rainfall data for studying the rainfall induced landslides – A case study, Advances in Space Research,
  • G. Purna Durga, A. Naga Rajesh and T.V. Lakshmi Kumar * (2020) Projections of CMIP5 evaporation data sets under future climate change scenarios and comparison with estimates from the observations over peninsular India, Journal of Agrometerology, 22 (2) 186-190
  • Jason G., Franklin, P., Barbosa, H., Carlos, S and T.V. Lakshmi Kumar (2020) Characterization of links between hydroclimate indices and long term precipitation in Brazil using correlation analysis, International Journal of Climatology, DOI: 10.1002/joc.6533
  • Thakur, MK., Lakshmi Kumar , TV*., Koteswara Rao, K., Humberto Barbosa and M.S. Narayanan (2020) Analytical study of the performance of the IMERG over the Indian Landmass, Meteorological Applications,
  • Thakur, M.K., Lakshmi Kumar T. V, Koteswara Rao, K. Humberto Barbosa and V.B. Rao (2019). 'A new perspective in understanding rainfall from satellites over a complex topographic region of India.' Scientific Reports, 9,15610, doi: 10.1038/s41598-019-52075-y
  • Lakshmi Kumar T.V., Humberto, B., Madhu, S., Koteswara Rao, K. 'Studies on Crop Yields and Their Extreme Value Analysis over India.' Sustainability, 11, 4657, (2019).
  • Sonkar,G., Mall, R.K., Banerjee,T., Singh, N., , R. Chand, Lakshmi Kumar T. V., Chand, R. (2019) 'Vulnerability of Indian wheat against rising temperature and aerosols.' Environmental Pollution, doi: 10.1016/j.envpol.2019.07.114.
  • Kiran, R. V., Ratnam, V.M., Murthy, B.V. K., Kant, Y., Prasad, P., Roja, M., Rao, B.S.V., Lakshmi Kumar T. V. and Maitra, A. (2019) 'An empirical method for source apportionment of black carbon aerosol: Results from Aethalometer observations at five different locations in India'. Environmental Pollution,. 254, doi: 10.1016/j.envpol.2019.07.100
  • Purnadurga, G., Lakshmi Kumar T.V. Koteswara, Rao. K, Barbosa, H. & Mall, R. K. (2019)'Evaluation of evapotranspiration estimates from observed and reanalysis data sets over India region.' International Journal of Climatology, 39(15), 5791-5800.
  • Humberto A. B., T. Lakshmi Kumar T.V, Franklin P., Simon, E., Ayugae, J.G. (2019)' Assessment of Caatinga response to drought using Meteosat-SEVIRI Normalized Difference Vegetation Index (2008–2016)'. ISPRS Journal of Photogrammetry and Remote Sensing, doi:org/10.1016/j.isprsjprs.2018.12.014
  • Humberto Alves Barbosa, T. Lakshmi Kumar, Franklin Paredes, Simon Elliot, J.G. Ayuga (2018) Assessment of Caatinga response to drought using Meteosat-SEVIRI Normalized Difference Vegetation Index(2008–2016), ISPRS Journal of Photogrammetry and Remote Sensing
  • M. Ashok Williams, T.V. Lakshmi Kumar and D. Narayana Rao (2018) Characterizing black carbon aerosols in relation to atmospheric boundary layer height during wet removal processes over a semi urban location, Journal of Atmospheric and Solar Terrestrial Physics, doi:
  • Manoj Kumar  Thakur, T.V. Lakshmi Kumar, Sanjeev Dwivdedi and M.S. Narayanan (2018) On the rainfall asymmetry and distribution in tropical cyclones over Bay of Bengal using TMPA and GPM rainfall products, Natural Hazards, DOI
  • Sanjeev Dwivedi, R. Uma, T.V. Lakshmi Kumar, M.S. Narayanan, Samir Pokhrel and R.H. Kripalani (2018) New spatial and temporal indices of Indian Summer Monsoon Rainfall, Theoretical and Applied Climatology, DOI :
  • Purnadurga, G., Lakshmi Kumar, TV., Koteswara Rao, K., Rajasekhar, M and Narayanan, .M.S (2017) Investigation of temperature changes over India in association with meteorological parameters in a warming climate, International Journal of Climatology, DOI: 10.1002/joc.5216.
  • Franklin, Peredes., Barbosa, H and Lakshmi Kumar, TV (2017) Validating CHIRPS – based satellite precipitation estimates in Northeast Brazil, Journal of Arid Environments, 139, 26-40.
  • Lakshmi Kumar, TV., Koteswara Rao, K, Uma, R., Barbosa, H and Patnaik, KVKRK (2016) On the relation of vegetation to the southwest monsoon rainfall over Western Ghats, India, Natural Hazards, DOI 10.1007/s11069-016-2426-6.
  • Lakshmi Kumar, TV., Uma, R., Koteswara  Rao, K., Humberto Barbosa., Patnaik (2016) Variability in  MODIS NDVI and its relationship with southwest monsoon rainfall over Western Ghats, India.  "Journal of Environmental Informatics"
  • Aruna, K., Lakshmi Kumar, T.V., Narayana Rao, D., Krishna Murthy, BV and Suresh Babu, S (2015) Estimation of radiative forcing and comparison with measured solar fluxes over Chennai, doi:10.1016/j.atmosenv.2015.08.085Atmospheric Environment 
  • Humberto Barbosa and Lakshmi Kumar, TV.,(2015) Influence of rainfall variability on the vegetation dynamics over Northeastern Brazil , doi : 10.1016/jaridenv.2015.08.15, Journal of Arid Environments
  • Uma, R., Lakshmi Kumar, TV and Narayanan, M.S (2015) Understanding convection features using SST and other atmospheric variables, doi : 10.1007/s00704-015-1518-7, "Theoretical and Applied Climatology"
  • Humberto Barbosa., Lakshmi Kumar, TV and Silva, LRM (2015) Recent trends in vegetation dynamics in south America and their relationship to rainfall, Natural Hazards, DOI : 10.1007/s11069-015-1635-8.
  • Madhu, S., Lakshmi Kumar, TV., Barbosa, Humberto, Koteswara Rao, K and Vizaya Bhaskar, V (2014) Trend analysis of evapotranspiration and its response to droughts over India, Theoretical and Applied Climatology. doi 10.1007/s00704-014-1210-3.
  • Aruna, K., Lakshmi Kumar, T.V., Narayana Rao, D., Krishna Murthy, BV., Suresh Babu, S and Krishnamoorthy, K (2014) Absorption and scattering characteristics of aerosols over Chenni.  “Journal of Atmospheric and Solar Terrestrial Physics”, 119, 211-222.
  • Aruna, K., Lakshmi Kumar,TV., Narayana Rao,D., Krishna Murthy, BV., Suresh Babu,S & Krishna Moorthy, K (2013) "Studies on black carbon concentration in a semi arid urban environment" Journal of Atmospheric and Solar Terrestrial Physics,104, 116-125.
  • Lakshmi Kumar, TV., Koteswara Rao, K., Uma, R and Aruna, K (2014) The role of ENSO on the observed pattern of cycling over monsoon season of India. Journal of Water and Climate Change, doi:10.2166/wcc.2014.128
  • Lakshmi Kumar, TV., Koteswara Rao, K., Humberto Barbosa and Uma,R (2014) Trends and extreme value analysis of rainfall pattern over homogeneous monsoon regions of India, Natural Hazards, doi : 10.1007/s11069-014-1127-2.
  • T.V. Lakshmi Kumar, K. Koteswara Rao, Humberto Barbosa and Emily Prabha Jothi, Studies on spatial patterns of NDVI over India and its relationship with rainfall, air temperature, soil moisture adequacy and ENSO,  Vol.30, 73-89, Geofizika, June 2013.
  • R.Uma, T.V. Lakshmi Kumar, M.S. Narayanan, M. Rajeevan, Jyothi Bhate and Niranjan (2013), Assessment and spatial correspondence of TRMM and IMD gridded data sets over Indian land mass. Journal of Earth System Sciences,122 (3), 573-588.
  • K. Koteswara Rao, T.V. Lakshmi Kumar & V. Lakshmana Rao (2012), Variability of agroclimatic regime of homogeneous monsoon regions of India. Global and Planetary Change, 92-93, 48 – 57.
  • Lakshmi Kumar, T.V., Humberto Barbosa, K. Koteswara Rao & Emily Prabha Jothi (2012), Some studies on the frequency of extreme weather events over India. Journal of Agricultural Science & Technology. 14, 1343 – 1356.

Book chapters published:

  • Lakshmi Kumar, TV., Humberto Barbosa, Manoj Kumar Thakur and Franklin Peredes.,Validation of Satellite (TMPA and IMERG) Rainfall Products with the IMD Gridded Data Sets over Monsoon Core Region of India, Book Chapter in Satellite Information – Classification and Interpretation, In tech open publishers, 2019, DOI: 10.5772/intechopen.84999
  • Humberto Barbosa and Lakshmi Kumar, T.V., Strengthening regional capacities for providing remote sensing decision support in drylands in the context of Climate variability and change. Book Chapter in  “International Presepectives on Global Environmental Change” In Tech Publisheres, pp ; 399 – 426., Feb 2012
  • Humberto Barbosa, Carolien Tote, Lakshmi Kumar, T.V and Yazidhi Bamutaze, Harnessing earth observation and satellite information for monitoring desertification, drought and agricultural activities in developing countries.“Environmental Sustainability”. Feb 2013.

Conference Awards received :

  • Purnadurga et al., On the warming  and its association with PET and OLR over India. Best Poster Presentation, International Conference on Environment, Climate, Adaptation and Future Energy, Chennai, Oct 2016
  • Aruna et al, Shortwave aerosol radiative forcing over Chennai, Best Poster Presentation, National Conference on Science and Technology, SRM Institute of Science and Technology (formerly known as SRM University), Chennai, Nov 2015
  • Aruna et al, Black Carbon aerosols and their long range transport, Best Oral Presentation, International Tropical Meteorology Symposium, SRM Institute of Science and Technology (formerly known as SRM University), Chennai, Feb 2014
  • Uma et al., Understanding convection features over Bay of Bengal using SSTs, Best Oral Presentation, International Tropical Meteorology Symposium, SRM Institute of Science and Technology (formerly known as SRM University), Chennai, Feb 2014
  • Uma et al., Large scale features and spatial assessment of IMD and TRMM rainfall data sets over India, Best Oral Presentation, Tropical Meteorology Symposium, Hydrerabad, Dec 2012
  • Uma et al., On the relation of NDVI with southwest monsoon rainfall over India, Best Oral Presentation, RACE - National Conference, KL University, Andhra Pradesh, Dec 2011.
  • Lakshmi Kumar et al., Interrelations between NDVI and climate indices” Best Poster Presentation, International Conference on Agrometeorology & Food Security , Central Research Institute for Dryland Agriculture, Feb 2008
  • Lakshmi Kumar et al., Role of precipitable water vapour in atmospheric dynamics  Best Oral Presentation, International Conference on Atmospheric Physics and Space Technology, Yogi Vemana University, Andhra Pradesh, Feb 2008.

Recognitions and Media links :

Events organized

  • Release of Chennai Water resources Calendar : 30th June 2020

Prepared the calendar with the information on water resources of Chennai in association with Explore the Space (NGO) and Tamilnadu State Council for Science and Technology (TNSCST), Govt of Tamilnadu and the same is released by Padmasree : Dr. Mylsami Annadurai, Vice President, TNSCST on 30th June 2020

  • Climate Cartoon Contest : 28th July 2020

    As an extension activity, Climate Cartoon Contest-2020 for school children has been conducted by the Atmospheric Science Research Laboratory, Dept of Physics and Nanotechnology & Satellite Meteorology Cell, SRM Institute of Science and Technology. The primary aim of the Climate Cartoon Contest -2020 is to bring awareness and to motivate the young students towards the understanding of various climate issues such as air pollution, cyclones, monsoons etc. We have received a tremendous response to the call. We have received more than 1050 drawings from approximately 160 schools across the world. The drawings are from 14 countries include USA, Brazil, Saudi, UAE, Ghana, Malawi, Kiambu, Pakistan, Hungary, Vietnam, Indonesia, Nepal, The Netherlands and many states of India.

    An online interaction meeting with the kids has been held on 28th July 2020 on the occasion of World Nature Conservation Day. Around 300 kids along with their parents participated in the online meeting and interacted with the climate experts. The list of climate experts interacted with the kids are given below.,

    • Dr. Ana Elisa Bucher, Senior Climate Change Specialist, World Bank
    • Dr.S. Balachandran, Deputy Director General of Meteorology, RMC, IMD, Chennai
    • Dr. G. Pandithurai, IITM, MoES, Pune
    • Prof. Ajit Tyagi, Former DGM, IMD
    • Dr. M.S. Narayanan, SAC, ISRO
  • One day Online workshop on Atmospheric Observations and Weather Monitoring Techniques : 12th Dec 2020

SRM Institute of Science and Technology (SRMIST) and South Asian Meteorological Association (SAMA) jointly organized one day online workshop on “Atmospheric Observations and Weather Monitoring Techniques (AOWMT)” on 12th Dec 2020. Experts from the different areas of atmospheric science, Prof. S.T. Rao, North Carolina State University; Dr. Radhika Ramachandran, Director, Space Physics Laboratory, VSSC, India; Dr. M. Venkat Ratnam, Scientist, National Atmospheric Research Laboratory, Gadanki; Dr. G. Pandithurai, Scientist, Indian Institute of Tropical Meteorology (IITM), India; T. Satya Narayana, Graz University of Technology; Dr.M.S. Narayanan, Visiting Professor, SRMIST and Dr. Suman Goyal, IMD have delivered talks. Experts emphasized their talks on various techniques of atmospheric measurements and basic weather interpretation techniques. A total number of nearly 300 participants from 27 countries attended the online workshop.

  • Fundamentals of Atmospheric Physics - M.Sc Physics
  • Heat and Thermodynamics - B.Sc Physics
  • Elements of Earth Atmosphere - B.Sc Physics
  • Physics for Technologists - B.Tech



Dr. T.V. Lakshmi Kumar
Research Assistant Professor  - Physics 
Atmospheric Science Research Laboratory
CRC 901/A, Class Room Complex
SRM Institute of Science and Technology (formerly known as SRM University) Main Campus
Kattankulathur, Tamilnadu  603 203
Email :