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INDIAN INSTITUTE OF SPACE SCIENCE AND TECHNOLOGY
A. Chandrasekar





Dr. A. Chandrasekar
Senior Professor
Department of Earth and Space Sciences
Indian Institute of Space Science and Technology
Thiruvananthapuram - 695 022
Phone:0471 2563483 (Off)
Fax:0471 2564806
E-mail:,
Dr. Chandrasekar  


Education:
  • Ph.D. from IISc, Bangalore.
  • M.Sc. from Department of Marine Sciences, Cochin University.
  • B.Sc. from University of Madras.


    Research Interests:
    Numerical modeling of the atmosphere, data assimilation, mesoscale modeling, regional climate modeling.


    Courses Offered:
    Under Graduate:
    • Physics I.
    • Earth System Science (ES 321) [shared with Dr VJ Rajesh].
    • Earth System Science (ES 221) [shared with Dr VJ Rajesh].
    • Earth System Science lab (ES 241) [shared with Dr VJ Rajesh].


    Past Affiliations:
    • Head, Center for Oceans, Rivers, Atmosphere and Land Sciences, IIT Kharagpur (July 2008 - June 2009).
    • Professor in Department of Physics & Meteorology. IIT-Kharagpur (Aug 2004 - 2009).
    • Associate Professor in Department of Physics & Meteorology, IIT-Kharagpur (May 1999 - Aug 2004).
    • Assistant Professor in Department of Physics & Meteorology, IIT-Kharagpur (Jan 1996 - May 1999).
    • Lecturer in Department. of Physics & Meteorology, IIT-Kharagpur (July 1988 - Dec 1995).
    • SRF and JRF, IISc, Bangalore (1984 - 1987).

    Member of Professional Bodies:
    • Member: The National Academy of Sciences, India.
    • Life Member: India Meteorological Society.
    • Life Member: Indian Society for Theoretical and Applied Mechanics.

    Member, Editorial Board:
    • Disaster Advances Journal.
    Member, Editorial Advisory Committee : The Open Atmospheric Science Journal


    Ph.D. Guidance

    1. Dr A Sarkar (1998) Effects of Urban Heat Island and its growth on the local weather and air quality over the Indian region
    2. Dr S. Mazumdar (2000) A study of the various initialization schemes as applied to a limited area shallow water model over a tropical region
    3. Dr V.F. Xavier (2008) The effect of assimilation of satellite and conventional meteorological data on the mesoscale modeling of tropical meteorological systems over India
    4. Dr S. Sandeep (2009) Mesoscale Modeling of recent tropical cyclones that formed over India: Effects of Synthetic Vortex Initialization
    5. Dr Vinodkumar (2009) Effects of surface data assimilation in modeling various monsoonal mesoscale disturbances over India
    6. M. Govindan Kutty (2010) Submitted PhD thesis titled "The impact of three-dimensional variational satellite data assimilation in simulating various monsoonal disturbances over India using the WRF model" in May 2010
    7. P.K. Sinha (presently ongoing)
    Recent Publications:

    1. Effect of 3DVAR Assimilation of MODIS Temperature and Humidity Profiles on the Dynamic and Thermodynamic Features of Three Monsoon Depressions over the Bay of Bengal, M. Govindankutty, and A.Chandrasekar, Meteorological and Atmospheric Physics, 107, 65-79 (2010)
    2. Improvement of Mesoscale Forecasts of Monsoon Depressions through Assimilation of QuikSCAT Wind data: Two Case studies over India, P.K. Sinha and A.Chandrasekar, The Open Atmospheric Science Journal, 4, 160-177 (2010).
    3. Impact of 3DVAR assimilation of Doppler Weather Radar wind data observation for the prediction of a tropical cyclone, M. Govindankutty, A. Chandrasekar, and Devendra Pradhan International Journal of Remote Sensing (accepted for publication), (2010).
    4. Assessment of data assimilation approaches for the simulation of a monsoon depression over the Indian monsoon region, Vinodkumar, A.Chandrasekar, Dev Niyogi and K. Alapaty (in Boundary Layer Meteorology), 133, 343-366 (2009).
    5. Impact of Land Surface Representation and Surface Data Assimilation on the Simulation of an Off-Shore Trough over the Arabian Sea, Vinodkumar, A. Chandrasekar, Dev Niyogi and K. Alapaty Global and Planetary Change, 67, 104-116, (2009)
    6. The impact of assimilation of satellite derived wind observations for the prediction of a monsoon depression over India using a mesoscale model, V.F.Xavier, A. Chandrasekar and Devendra Singh International Journal of Remote Sensing, 29, no. 24, 7225 - 7250 (2008)
    7. The effect of satellite and conventional meteorological data assimilation on the mesoscale modeling of monsoon depressions over India, V.F. Xavier, A.Chandrasekar, Hasibur Rahman, Dev Niyogi and K. Alapaty Meteorological and Atmospheric Physics (DOI: 10.1007/s00703-008-0314-7), (2008)
    8. Development of the Flux-Adjusting Surface Data Assimilation System for mesoscale models, K. Alapaty, Dev Niyogi, F. Chen. P. Pyle, A. Chandrasekar and N. Seaman Journal of Applied Meteorology and Climatology, 47, 9, 2331-2350. (2008)
    9. Combined IR- Microwave satellite retrieval of temperature and moisture profiles using the ICI inversion system and its application in the MM5 model, Devendra Singh, S. Sandeep and A. Chandrasekar, Atmosfera, 21, 191-212. (2008)
    10. The impacts of indirect soil moisture assimilation and direct surface temperature and humidity assimilation on a mesoscale model simulation of a Indian monsoon depression, Vinodkumar, A.Chandrasekar, K. Alapaty and Dev Niyogi, Journal of Applied Meteorology and Climatology, 47, 1393-1412. (2008)
    11. The impact of assimilation of MODIS observations using WRF-VAR for the prediction of a monsoon depression during September 2006, M. Govindankutty, A. Chandrasekar, AK Bohra, JP George and M. Dasgupta, The Open Atmospheric Science Journal, 2, 68-78. (2008)
    Publication of Books:

    1. A book titled "Basics of Atmospheric Science" (2010) by A. Chandrasekar (446 pages and costing Rs 375) has been published by PHI Learning Private Limited, New Delhi.
    Projects:

    1. 'Impact of assimilating high temporal resolution data from INSAT-3D in high-resolution mesoscale model for prediction of severe weather systems over Bay of Bengal and neighbouring land region,'- Funded by SAC, ISRO
    2. 'Assimilation of Oceansat-2 scatterometer in mesoscale model'- Funded by SAC, ISRO
    3. Impact of assimilating SAPHIR and GPS-ROS data from MEGHA TROPIQUES in high resolution mesoscale model for prediction of severe weather systems over India Funded by IIST
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