Ashley D Greeley
(RESEARCH AST, FIELDS AND PARTICLES)
| Email: | ashley.greeley@nasa.gov |
| Phone: | 301.286.9054 |
| Org Code: | 672 |
| Address: |
NASA/GSFC Mail Code 672 Greenbelt, MD 20771 |
| Employer: |
Brief Bio
Ashley Greeley is a research scientist in the Energetic Particles Lab (code 672). In this role, she splits her time between research topics and instrument development. She is the instrument lead on several CubeSat missions analyzing electrons, protons, and ions in low Earth orbit (LEO), interplanetary space, and lunar orbit. She develops future missions using Geant4, a Monte Carlo simulation package. Her current research interests include electron pitch angle distributions in the Earth's radiation belts, wave-particle interactions, and particle precipitation into the atmosphere.
She graduated with distinction from Duke University in 2011 with a B.S. in physics and minor in theater studies. She studied neutrinos with the Super Kamiokande collaboration under the guidance of K. Scholberg and C. Walter. She worked for a year at the Duke Psychiatry Department running clinical trials for schizophrenia and fibromyalgia research. She then came to Goddard as an intern, where she has worked in various capacities since.
During her internship, she worked on the design of a new CubeSat, the Miniaturized Electron pRoton Telescope (MERiT) instrument o the Compact Radiation bElt Explorer (CeREs). In the year after, she stayed on the project as a data scientist before applying to grad school at the nearby Catholic University of America. During this time, she worked on CeREs from its initial design through launch in 2018. She also worked on a MERiT design for the CubeSat to Study Solar Particles (CuSP) mission, launched in 2022. She has started work on a particle instrument for the Geospace Dynamics Constellation (GDC).
Ashley graduated with her PhD at the end of 2019, and started a NASA Postdoctoral Program (NPP) fellowship. In 2021, she started a research scientist position at the Catholic University of America working at Goddard. In 2022, she started a research scientist civil servant position at Goddard.
Positions/Employment
Research Heliophysicist
NASA GSFC - Greenbelt, MD
September 2022 - Present
Research Scientist
The Catholic University of America - NASA GSFC
October 2021 - September 2022
NASA Postdoctoral Program Research Fellow
USRA - NASA GSFC
January 2020 - September 2021
Graduate Student Research Assistant
The Catholic University of America - NASA GSFC
September 2013 - December 2019
Data Scientist
The Catholic University of America - NASA GSFC
August 2012 - August 2013
NASA Intern
The Catholic University of America - NASA GSFC
June 2012 - July 2012
Education
The Catholic University of America, PhD
Duke University, BS
Publications
Refereed
2024. "Outer Zone Relativistic Electron Response to Mesoscale Periodic Density Structures in the Solar Wind: Van Allen Probes Measurements.", Journal of Geophysical Research: Space Physics, 129 (10): [10.1029/2024ja032614] [Journal Article/Letter]
2023. "Persistent Pitch Angle Anisotropies of Relativistic Electrons in the Outer Radiation Belts.", Journal of Geophysical Research: Space Physics, 129 (1): [10.1029/2023ja031549] [Journal Article/Letter]
2022. "EMIC‐Wave Driven Electron Precipitation observed by CALET on the International Space Station.", Geophysical Research Letters, 49 (6): e2021GL097529 [10.1029/2021gl097529] [Journal Article/Letter]
2021. "Prompt Response of the Dayside Magnetosphere to Discrete Structures Within the Sheath Region of a Coronal Mass Ejection.", Geophysical Research Letters, 48 (11): e2021GL092700 [10.1029/2021gl092700] [Journal Article/Letter]
2021. "Evolution of Pitch Angle Distributions of Relativistic Electrons During Geomagnetic Storms: Van Allen Probes Observations.", Journal of Geophysical Research: Space Physics, 126 (2): [10.1029/2020ja028335] [Journal Article/Letter]
2020. "Statistical Properties of Electron Curtain Precipitation Estimated With AeroCube‐6.", Journal of Geophysical Research: Space Physics, 125 (12): [10.1029/2020ja028462] [Journal Article/Letter]
2019. "The MERiT Onboard the CeREs: A Novel Instrument to Study Energetic Particles in the Earth's Radiation Belts.", Journal of Geophysical Research: Space Physics, 124 (7): 5734-5760 [10.1029/2018ja026304] [Journal Article/Letter]
2019. "Quantifying the Contribution of Microbursts to Global Electron Loss in the Radiation Belts.", Journal of Geophysical Research: Space Physics, 124 (2): 1111-1124 [10.1029/2018ja026368] [Journal Article/Letter]
2018. "On the cause of two prompt shock-induced relativistic electron depletion events.", Journal of Atmospheric and Solar-Terrestrial Physics, 177 208-217 [10.1016/j.jastp.2017.08.017] [Journal Article/Letter]
2017. "SAMPEX observations of the South Atlantic anomaly secular drift during solar cycles 22-24.", Space Weather, 15 (1): 44-52 [10.1002/2016sw001525] [Journal Article/Letter]
2016. "Prompt injections of highly relativistic electrons induced by interplanetary shocks: A statistical study of Van Allen Probes observations.", Geophysical Research Letters, 43 (24): [10.1002/2016gl071628] [Journal Article/Letter]
2015. "Relativistic electron response to the combined magnetospheric impact of a coronal mass ejection overlapping with a high-speed stream: Van Allen Probes observations.", Journal of Geophysical Research: Space Physics, 120 (9): 7629-7641 [10.1002/2015ja021395] [Journal Article/Letter]