Activities



Invited Presentations in International Meetings

  • Multiscale phenomena in the earth's magnetosphere, 37th Scientific Assembly, Committee on Space Research (COSPAR 2008), Montreal, July 2008
  • Microscale processes and cross-scale coupling in magnetosphere, 37th Scientific Assembly, Committee on Space Research (COSPAR 2008), Montreal, July 2008.
  • Multispacecraft mission for exploration of fundamental processes in geospace and space weather, 15th National Space Science Symposium (NSSS 2008), Udhagamandalam, India, February 2008.
  • Multiscale Dynamics of the Magnetosphere, Union Session: Scaling and Nonlinear Variability in Geophysical, Geochemical, and Geobiological Processes, American Geophysical Union Fall Meeting, San Francisco, CA, December 2007.
  • Multiscale Complexity of the Magnetosphere: Data-derived modeling and MHD Simulations, Colloquium at Institute for Plasma Research, Gandhinagar, India, November 2007.
  • Multispacecraft Exploration of the Earth's Magnetosphere, Colloquium at Indian Institute of Geomagnetism, Mumbai, India, November 2007.
  • Multiscale phenomenon of the Earth's magnetosphere: Multispacecraft explorations, International Space Science Conf., Moscow, Russia, October 2007.
  • Dynamical predictability of the magnetosphere, American Geophysical Union Fall Meeting, San Francisco, CA, December 2006.
  • Global and multiscale phenomena of the magnetosphere: Data-derived modeling and MHD simulations, Intern. Living With a Star Workshop, Goa, India, February 2006.
  • Structure and stability of thin current sheets in the magnetotail, Colloquium at the Institute for Plasma Research, Gandhinagar, India, February 2006.
  • Multiscale features of the magnetosphere, International Space Science Institute Workshop on Thin Current Sheets, Bern, Switzerland, February 2006.
  • MHD simulations of the strongly driven magnetosphere, Colloquium at Institute for Plasma Research, Gandhinagar, India, August 2005.
  • The physics of the magnetosphere during intense geomagnetic activity: MHD simulations, Colloquium at Indian Institute of Geomagnetism, Mumbai, India, August 2005.
  • Multidimensional structure of current sheets, Workshop on Thin Current Sheets, Moscow, 2005.
  • Space weather forecasting: Integrated model based on nonlinear dynamics and statistical physics, Fall Meeting, American Geophysical Union, 2004.
  • Complexity in magnetospheric dynamics: From modeling to forecasting, Fall Meeting, American Geophysical Union, 2004.
  • Global and multi-scale dynamics of the magnetosphere, International Conference in Solar-Terrestrial Physics, Moscow, Russia, March 2003.
  • Forecasting Geomagnetic Activity, Western Pacific Geophysics Meeting, Melbourne, Australia, July 2002.
  • Critical behavior in magnetospheric dynamics, Workshop on Nonequilibrium Transitions in Plasmas, Ahmedabad, India, March 2001.
  • Phase transition-like behavior of substorms, First S-Ramp Conference, Sapporo, Japan, October 2000.
  • Collisionless tearing instability as substorm trigger and its relationship to thin current sheets, First S-Ramp Conference, Sapporo, Japan, October 2000.
  • Storm-substorm relationship and ring current growth, First S-Ramp Conference, Sapporo, Japan, October 2000.
  • Nonequilibrium transitions in the magnetosphere: Phase transition, self-organized criticality and catastrophe scenarios, (Plenary talk), Fifth International Conference on Substorms, St. Petersburg, Russia, May 2000.
  • Storm-substorm relationship (Session Summary), Fifth International Conference on Substorms, St. Petersburg, Russia, May 2000.
  • Spatial structure of storms, Workshop on Magnetic Storms, Athens, April 1999.
  • Spatio-Temporal Structure of Geomagnetic Activity, Sixth Huntsville Modeling Workshop: The New Millennium Magnetosphere, Guntersville, October 1998.
  • Substorm Trigger Mechanisms (Session Summary), Fourth International Conference on Substorms, Lake Hamana, Japan, March 1998.
  • Nonlinear Dynamical Modeling and Prediction Using Time Series Data, Conference on Nonlinear Dynamics and Computational Physics, Ahmedabad, India, November 1997.
  • Modeling and Prediction of Geomagnetic Storms, Space Science Symposium, Ahmedabad, India, November 1997.
  • Substorm Contributions to Storms, Workshop on Storm-Substorm Relationship, Tegernsee, Germany, September 1997.
  • Prediction of Magnetic Storms, Workshop on Forecasting and Verification of Space Weather, Boulder, Colorado, June 1996.
  • Modeling the Magnetospheric Dynamics, IEEE International Conference on Plasma Science, Boston, Mass, June 1996.
  • Nonlinear Dynamics of the Magnetosphere and Space Weather, Third International Conference on Substorms, Versailles, France, May 1996.
  • Dynamical Relationship Between Storms and Substorms, Workshop on Storm-Substorm Relationship, Lake Arrowhead, California, February 1996.
  • Modeling and Prediction of Magnetic Storms, NSF/GEM Workshop on Space Weather, Boulder, Colorado, January 1996.
  • Nonlinear Dynamics of the Magnetosphere, Symposium on Multiscale Phenomena in Space Plasmas, Bermuda, February 1995.
  • Modeling Global Magnetospheric Dynamics from Time Series Data, Frontier Issues in Space Plasma Research, Western Pacific Geophysics Meeting, Hong Kong, July 1994.
  • Nonlinear Modeling and Prediction of Magnetospheric Dynamics, International Workshop on Nonlinear Waves and Chaos in Space Plasma, Kyoto, Japan, June 1994.
  • Global magnetospheric dynamics and coherence, Workshop on Theoretical Geoplasma: Chaso, Stochasticity and Turbulence, Cambridge, Mass., July 1993.
  • Low-dimensional dynamics of solar wind-magnetosphere coupling, Spring College on Plasma Physics, International Center for Theoretical Physics, Trieste, Italy, May 1993.
  • Singular spectrum analysis of the chaotic behavior of global magnetospheric processes (Tutorial Talk), Workshop on Theoretical Geoplasma Physics: Controversial Issues and New Frontier Research in Geoplasma, Cambridge, Mass., August 1992.
  • Nonlinear dynamics of space plasmas and predictive modeling, Internl. Conf. on Research Trends in Nonlinear Space Plasma Physics, La Jolla, California, February 1991.
  • Predictive modeling of the solar terrestrial environment using time series data, Gordon Research Conference on Modeling in Solar Terrestrial Physics, Plymouth, New Hampshire, July 1990.
  • Fractal nature of solar wind-magnetosphere interaction, Am. Geophys. Union Spring Meeting, Baltimore, Maryland, June 1990.

Outreach and Public Talks

  • Fractal Structure of Galaxies, University of Maryland Astronom Open House Presentation, College Park, Maryland, February 1999.
  • Space Plasma Physics and Astrophysics, University of Maryland, College Park, Maryland, March 1996.
  • Space Weather, University of Maryland, Astronomy Open House Presentation, College Park, Maryland, October 1995
  • Nonlinear Modeling and Prediction Using Time Series Data Washington Area Astonomers Meeting, Baltimore, Maryland, March 1995
  • Dynamical Variability in Astophysics University of Maryland Astronomy Open House Presentation , College Park, Maryland, January 1992
  • Deterministic Chaos in Magnetospheric Dynamics, Washington Area Astronomers Meeting, College Park, Maryland, March 1991
  • Theoretical Space Plasma Physics Research, University of Maryland, College Park, Maryland, April 1990
  • The Nature of Solar Wind-Comet Interaction at Comet Halley, Washington Area Astronomers Meeting, Baltimore, Maryland, March 1989

Professional Service

  • American Geophysical Union, Books Board
    • 2008 - 2009, Member
  • American Geophysical Union Nonlinear Geophysics Focus Group
    • 2004 - 2008, Chair
    • 2002 - 2004, Vice-Chair
  • Guest Editor, Nonlinear Processes in Geophysics, European Geosciences Union
  • Member, University Senate, University of Maryland, College Park
  • Member, India Delegation to International Atomic Energy Agency Conference on Plasam Physics and Controlled Nucl. Fusion Res., 1982 (Baltimore) and 1984 (London)
  • Chairman, Academic Committee, Institute of Plasma Research, Bhat, India, 1985-1987
  • Faculty Host for Senior Fulbright Fellow, November-December 1994
  • Reviews of Research Proposals for NSF, NASA, and IGPP of the University of California
  • Reviews of Journal Articles for:
    • Physics of Plasmas
    • Physical Review Letters
    • Reviews of Geophysics
    • Journal of Geophysical Research
    • Geophysical Research Letters
    • Astronomy and Astrophysics
    • Geomagnetism and Aeronomy International
    • EOS-Bulletin of American Geophysical Society
    • Pramana, India Journal of Physics
  • Panel Member, Proposal Review Panels of NASA, NSF, and ONR
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