Sciences and Exploration Directorate

Jacob R Gruesbeck

(Research AST, Fields and Particles)

 jacob.r.gruesbeck@nasa.gov

 301.614.6234

Org Code: 695

NASA/GSFC
Mail Code: 695
Greenbelt, MD 20771

Employer: NASA

Brief Bio


Dr. Gruesbeck primary research focus is on the nature of the interaction of the solar wind and transient events on the magnetospheres of solar system bodies. Using MAVEN observations, Dr. Gruesbeck has developed a 3-dimensional representation of the bow shock of Mars. This surface is able to show its non-asymmetric shape resulting from the presence of strong localized crustal fields on the surface of Mars. In addition, Dr. Gruesbeck has an interest in the calibration and validation of magnetometer data to help provide the community with accurate data.

Dr. Gruesbeck received his PhD from the University of Michigan where he investigated the coronal mass ejection plasma using observations of their ionic charge state composition. There he developed a model that connected the near corona temperature profile to the composition of observed ejecta plasma. While at Michigan he also earned a Masters of Engineering in space systems engineering.

Current Projects


MAVEN Project Science Group

Magnetospheres

Positions/Employment


Research Astrophysicist

NASA Goddard Space Flight Center - Greenbelt, MD

August 2018 - Present


Postdoctoral Researcher

University of Maryland/CRESST - NASA Goddard Space Flight Center, Greenbelt, MD

April 2015 - August 2018


Scientific Programmer

University of Michigan, Solar and Heliospheric Research Group - Ann Arbor, MI

November 2013 - November 2013


Graduate Student Researcher

University of Michigan, Solar and Heliospheric Research Group - Ann Arbor, MI

July 2007 - September 2013


Undergraduate Student Researcher

University of Michigan, Solar and Heliospheric Research Group - Ann Arbor, MI

October 2002 - October 2006

Education


University of Michigan, Rackham Graduate School

  • 2013 PhD, Atmospheric and Space Science
  • 2009 Masters, Atmospheric and Space Science

University of Michigan, College of Engineering

  • 2007 Masters of Engineering, Space Systems Engineering
  • 2006 Bachelors of Engineering, Earth System Science and Engineering

Professional Societies


American Geophysical Union

2015 - Present

Selected Publications


Refereed

Gruesbeck, J. R., J. R. Espley, J. E. Connerney, et al. G. A. DiBraccio, Y. I. Soobiah, D. Brain, C. Mazelle, J. Dann, J. Halekas, and D. L. Mitchell. 2018. The Three-Dimensional Bow Shock of Mars as Observed by MAVEN Journal of Geophysical Research: Space Physics [10.1029/2018ja025366]

Gruesbeck, J. R., D. J. Gershman, J. R. Espley, and J. E. Connerney. 2017. The interplanetary magnetic field observed by Juno enroute to Jupiter Geophysical Research Letters 44 (12): 5936-5942 [10.1002/2017gl073137]

Gruesbeck, J. R., S. T. Lepri, T. H. Zurbuchen, and E. R. Christian. 2015. EVIDENCE FOR LOCAL ACCELERATION OF SUPRATHERMAL HEAVY ION OBSERVATIONS DURING INTERPLANETARY CORONAL MASS EJECTIONS The Astrophysical Journal 799 (1): 57 [10.1088/0004-637x/799/1/57]

Gruesbeck, J. R., S. T. Lepri, and T. H. Zurbuchen. 2012. TWO-PLASMA MODEL FOR LOW CHARGE STATE INTERPLANETARY CORONAL MASS EJECTION OBSERVATIONS The Astrophysical Journal 760 (2): 141 [10.1088/0004-637x/760/2/141]

Gruesbeck, J. R., S. T. Lepri, T. H. Zurbuchen, and S. K. Antiochos. 2011. Constraints on Coronal Mass Ejection Evolution from in Situ Observations of Ionic Charge States The Astrophysical Journal 730 103 [10.1088/0004-637X/730/2/103]