Amy Keesee
Our technology-driven society is dependent upon satellite technology for communication, navigation, and national security, as well as upon a reliable power grid for everyday needs such as money transactions, job functions, and food storage. These infrastructure systems are vulnerable to geomagnetic activity, when charged particles in the space surrounding Earth are energized and transported due to energy input from the Sun. My research centers on studying these charged particles during enhanced geomagnetically active events to improve our understanding of and eventually be able to forecast the characteristics of space during them. Such improved space weather forecasts would provide a reliable warning system to protect satellite and power grid infrastructure.
My research includes three areas: magnetospheric physics, instrument development, and laboratory plasma physics. In magnetospheric physics, I analyze satellite-based data to understand the dynamics of the magnetosphere during geomagnetic storms. These data are often incorporated with computer models to improve understanding of the underlying physics. I am working to develop the next generation of plasma spectrometers to measure charged particles in space, particularly on small platforms such as CubeSats. The spectrometer is also being developed as a diagnostic for fusion energy producing plasma research. I am also involved in laboratory based plasma physics research, particularly with laser-based diagnostics. These studies help us to understand space-relevant phenomena.
Research Interests
- Flight Instruments
- Instrumentation, Techniques (Physical Sciences)
- Magnetospheric Phenomena
- Nuclear Fusion, Plasma Research
- Plasma Physics
- Space Sciences
- Space Weather
- Spectroscopy
Courses Taught
- PHYS 408: General Physics II Recitation
- PHYS 708: Optics
- PHYS 708/808: Optics
- PHYS 797: Senior Design Project
- PHYS 951: Plasma Physics
- PHYS 999: Doctoral Research
Selected Publications
Keesee, A. M., Katus, R., Tibbetts, J., Liu, J., Zhang, X., & Sorathia, K. A. (2022). Automated Detection Algorithm for Mesoscale Heated Regions in TWINS Ion Temperature Maps. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 127(9). doi:10.1029/2022JA030464
Siddique, T., Mahmud, M. S., Keesee, A. M., Ngwira, C. M., & Connor, H. (2022). A Survey of Uncertainty Quantification in Machine Learning for Space Weather Prediction. GEOSCIENCES, 12(1). doi:10.3390/geosciences12010027
Adewuyi, M., Keesee, A. M., Nishimura, Y., Gabrielse, C., & Katus, R. M. (2021). Mesoscale Features in the Global Geospace Response to the March 12, 2012 Storm. FRONTIERS IN ASTRONOMY AND SPACE SCIENCES, 8. doi:10.3389/fspas.2021.746459
Farrugia, C. J., Rogers, A. J., Torbert, R. B., Genestreti, K. J., Nakamura, T. K. M., Lavraud, B., . . . Dors, I. (2021). An Encounter With the Ion and Electron Diffusion Regions at a Flapping and Twisted Tail Current Sheet. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 126(3). doi:10.1029/2020JA028903
Keesee, A. M., Buzulukova, N., Mouikis, C., & Scime, E. E. (2021). Mesoscale Structures in Earth's Magnetotail Observed Using Energetic Neutral Atom Imaging. GEOPHYSICAL RESEARCH LETTERS, 48(3). doi:10.1029/2020GL091467
Walsh, A. P., Haaland, S., Forsyth, C., Keesee, A. M., Kissinger, J., Li, K., . . . Taylor, M. G. G. T. (2014). Dawn-dusk asymmetries in the coupled solar wind-magnetosphere-ionosphere system: a review. ANNALES GEOPHYSICAE, 32(7), 705-737. doi:10.5194/angeo-32-705-2014
Sun, X., Keesee, A. M., Biloiu, C., Scime, E. E., Meige, A., Charles, C., & Boswell, R. W. (2005). Observations of ion-beam formation in a current-free double layer. PHYSICAL REVIEW LETTERS, 95(2). doi:10.1103/PhysRevLett.95.025004
Keesee, A. M., Scime, E. E., & Boivin, R. F. (2004). Laser-induced fluorescence measurements of three plasma species with a tunable diode laser. In REVIEW OF SCIENTIFIC INSTRUMENTS Vol. 75 (pp. 4091-4093). doi:10.1063/1.1787166
Zweben, S. J., Maqueda, R. J., Stotler, D. P., Keesee, A., Boedo, J., Bush, C. E., . . . Team, N. S. T. X. (2004). High-speed imaging of edge turbulence in NSTX. NUCLEAR FUSION, 44(1), 134-153. doi:10.1088/0029-5515/44/1/016
Kline, J. L., Scime, E. E., Boivin, R. F., Keesee, A. M., Sun, X., & Mikhailenko, V. S. (2002). rf absorption and ion heating in helicon sources. PHYSICAL REVIEW LETTERS, 88(19). doi:10.1103/PhysRevLett.88.195002
Most Cited Publications