Dr. Sanjiv K. Tiwari

Dr. Sanjiv K. Tiwari

Lockheed Martin Solar & Astrophysics Laboratory, &
Bay Area Environmental Research Institute,
3251 Hanover St., Bldg. 252, Palo Alto, CA 94304, USA

Phone: +1 650-424-2025

Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), &
Bay Area Environmental Research Institute (BAERI)
3251 Hanover St. Bldg 252, Palo Alto, CA 94304

Tel: (650) 424-2025


Jun 2010: Ph.D. (Physics), Udaipur Solar Observatory/MLS University, Udaipur, India
(Recipient of Justice Oak Best PhD Thesis Award of the year 2010, by Astronomical Society of India)
Mar 2003: M.Sc. (Physics) (I div.), V. B. S. Purvanchal University, India
Aug 2000: B.Sc. (Physics, Maths) (I div.), V. B. S. Purvanchal University, India.

Jun 2017 - present: Senior Research Scientist, Lockheed Martin (LMSAL), and BAERI
Dec 2016 - May 2017: Research Scientist, CSPAR, UAHuntsville (UAH), USA
Dec 2013 - Dec 2016: NASA Postdoctoral Program (NPP) Fellow, NASA's MSFC, USA
Jan 2011 - Dec 2013: Postdoc, Max Planck Institute for Solar System Research, Germany
Jun 2010 - Dec 2010: Postdoc, Udaipur Solar Observatory/Physical Research Lab., India
Jul 2005 - Jun 2010: Ph.D.-Junior (2-yrs) & senior (3-yrs) research fellow, USO/PRL, India
Jan 2005 - Jul 2005: Project Associate, Udaipur Solar Observatory/PRL, India
Apr 2003 - Dec 2004: Tutor, Physics and Maths for undergraduates in Allahabad, India

Adjunct Positions
Aug 2015 - present: Adjunct Graduate Faculty, & Adjunct Assistant Professor,
The Center for Space Plasma and Aerodynamic Research (CSPAR), & Space Science Division,UAHuntsville
Apr 2015 - Dec 2016: Research Scientist, CSPAR, UAHuntsville (UAH), USA

Research Interests & Expertise
Sunspots: Small-scale structure and dynamics: Penumbral filaments, spines, umbral
dots, light bridges, penumbral jets and penumbral moving bright dots; Global properties;
Spectropolarimetric inversions (both ME and depth-dependent) of sunspot data.
Coronal Heating: Photospheric magnetic setting vs heating of AR coronal loops, energy
transport, triggering of subflares in (normal and braided) coronal loops, small-scale coronal
dynamic events in the solar atmosphere; AR magnetic nonpotentiality calculated from photospheric vector magnetograms vs AR coronal heating.
Space Weather Prediction Related Research: Estimation of magnetic twist, free energy, helicity, non-potentiality in active regions (ARs) on
the photosphere using vector magnetograms, and their relation with CME/flare properties; Active member of MAG4
(forecasting tool) Team; Prominence/filament formation, evolution and eruption;

The background image is a magnetic field inclination map of a sunspot observed by Hinode (SOT/SP). The figure is adapted from Tiwari et al. 2015 (A&A), and was selected as A&A cover page.

This webpage is created and maintained with the help of Shivansh Tiwari.