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Chad Greene

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Address:

4800 Oak Grove Drive
M/S 300-323

Pasadena, CA 91109

Email:

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Curriculum Vitae:

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Website:

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Member of:

Sea Level And Ice

Scientist

Employed By

Caltech/JPL

Biography

Dr. Greene is a satellite remote sensing and machine learning specialist in the Sea Level and Ice Group at JPL/Caltech, where he is a member of the PREFIRE and MEaSUREs ITS_LIVE Earth data development teams. He has conducted multiple seasons of airborne geophysical surveys in Antarctica and Greenland, and carried out ship-based science in the Arctic, Gulf of Mexico, and Baltic Sea. Dr. Greene is a prolific coder, creator of many open-source MATLAB packages, and has a passion for thorough documentation. He has served on the MathWorks Community Advisory Board and as editor of the Proceedings of the National Academy of Sciences.

Education

  • Ph.D. Geological Sciences, The University of Texas at Austin, 2017. Thesis: Drivers of change in East Antarctic ice shelves.
  • M.S. Mechanical Engineering, The University of Texas at Austin, 2010. Thesis: Low frequency acoustic classification of methane hydrates.
  • B.S. Mechanical Engineering, Virginia Commonwealth University, with honors, 2007. Minor: Mathematics.

Professional Experience

  • Scientist: Jet Propulsion Laboratory
  • Postdoctoral research fellow at NASA: Jet Propulsion Laboratory.
  • Editor for the Proceedings of the National Academy of Sciences.
  • Research Science Associate at the University of Texas Institute for Geophysics.
  • Teaching Assistant for the Department of Geological Sciences at the University of Texas at Austin.
  • Graduate Research Assistant at Applied Research Laboratories, The University of Texas at Austin.
  • Currency Systems Engineering Intern at the Federal Reserve Bank, Richmond Virginia.

Research Interests

I use satellite and airborne remote sensing data to measure and understand the current state and sensitivities of the world’s glaciers and ice sheets. I’m currently pursuing the use of machine learning techniques to help fill in gaps in the Earth observation data record. With a more complete picture of how the Earth system has evolved in recent years, we gain insights into what the future may hold.

Selected Awards

  • NASA Early Career Achievement Medal, 2025
  • JPL Airborne Deployment Team Award, 2025
  • JPL Voyager Award, 2025
  • JPL Voyager Award, 2024
  • NASA Postdoctoral Program Fellowship 2019–2023
  • National Science Foundation Early Career Scientist Award June 2018
  • NASA Young Investigator Award July 2016
  • University of Texas Institute for Geophysics Outstanding Graduate Student Award May 2016
  • MathWorks Award for Outstanding Contributions 2015

Selected Publications

  1. CA Greene and AS Gardner. Seasonal dynamics of Earth’s glaciers and ice sheets. Science, 2025. https://doi.org/10.1126/science.adx6654
  2. AS Gardner, CA Greene, JH Kennedy, MA Fahnestock, MA Liukis, LA López, Y Lei, TA Scambos, A Dehecq. ITS_LIVE global glacier velocity data in near-real time, The Cryosphere, 2025. https://doi.org/10.5194/tc-19-3517-2025
  3. KD Mankoff, CA Greene, AS Gardner, B Davison, D Treichler, W Kochtitzky, Ringeisen. Ice sheet mass flow and balance with constituent terms 2010-2019. Journal of Glaciology, 2025. https://doi.org/10.1017/jog.2025.10092
  4. CA Greene, AS Gardner, M Wood. Ubiquitous acceleration in Greenland Ice Sheet calving from 1985 to 2022. Nature, 2024. https://doi.org/10.1038/s41586-023-06863-2
  5. CA Greene and AS Gardner. Greenland’s glaciers are retreating everywhere and all at once. Nature, 2024. https://doi.org/10.1038/d41586-023-04108-w
  6. CA Greene, S Erofeeva, L Padman, SL Howard, T Sutterley, G Egbert. Tide Model Driver for MATLAB. Journal of Open Source Software, 2024. https://doi.org/10.21105/joss.06018
  7. LA López, AS Gardner, CA Greene, & others. ITS_LIVE: A Cloud-Native Approach to Monitoring Glaciers from Space. Computing in Science & Engineering, 2023. https://doi.org/10.1109/MCSE.2023.3341335
  8. BJ Davison, AE Hogg, N Gourmelen, L Jakob, J Wuite, T Nagler, CA Greene, J Andreasen, and ME Engdahl. Annual mass budget of Antarctic ice shelves from 1997 to 2021. Science Advances, 2023. https://doi.org/10.1126/sciadv.adi0186
  9. FS Paolo, AS Gardner, CA Greene, J Nilsson, MP Schodlok, N-J Schlegel, and HA Fricker. Widespread slowdown in thinning rates of West Antarctic ice shelves, The Cryosphere, 2023. https://doi.org/10.5194/tc-17-3409-2023
  10. I Vaňková, JP Winberry, S Cook, KW Nicholls, CA Greene, and BK Galton-Fenzi. High spatial melt rate variability near the Totten Glacier grounding zone explained by new bathymetry inversion. Geophysical Research Letters, 2023. https://doi.org/10.1029/2023GL102960
  11. CA Greene, AS Gardner, N-J Schlegel, and AD Fraser. Antarctic calving loss rivals ice shelf thinning. Nature, 2022. https://doi.org/10.1038/s41586-022-05037-w
  12. Y Nakayama, T Hirata, D Goldberg, CA Greene. What determines the shape of a Pine-Island-like ice shelf? Geophysical Research Letters, 2022. https://doi.org/10.1029/2022GL101272
  13. Y Nakayama, CA Greene, FS Paolo, V Mensah, H Zhang, H Kashiwase, D Simizu, JS Greenbaum, DD Blankenship, A Abe‐Ouchi and S Aoki. Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier. Geophysical Research Letters, 2021. https://doi.org/10.1029/2021GL094149
  14. CA Greene, AS Gardner, and LC Andrews. Detecting seasonal ice dynamics in satellite images. The Cryosphere, 2020. https://doi.org/10.5194/tc-2020-122
  15. W Wei, DD Blankenship, JS Greenbaum, N Gourmelen, CF Dow, TG Richter, CA Greene, DA Young, S.-H .Lee, T.-W. Kim, W.S. Lee, K.M. Assmann. Getz Ice Shelf melt enhanced by freshwater discharge from beneath the West Antarctic Ice Sheet. The Cryosphere, 2020. https://doi.org/10.5194/tc-14-1399-2020
  16. CA Greene, K Thirumalai, KA Kearney, JM Delgado, W Schwanghart, NS Wolfenbarger, KM Thyng, DE Gwyther, AS Gardner, and DD Blankenship. The Climate Data Toolbox for MATLAB. Geochemistry, Geophysics, Geosystems, 2019. https://doi.org/10.1029/2019GC008392
  17. CA Greene and K Thirumalai. It's time to shift emphasis away from code sharing. Eos, 2019. https://doi.org/10.1029/2019EO116357
  18. CA Greene, DA Young, DE Gwyther, BK Galton-Fenzi, and DD Blankenship. Seasonal dynamics of Totten Ice Shelf controlled by sea ice buttressing. The Cryosphere, 2018. https://doi.org/10.5194/tc-12-2869-2018
  19. CF Dow, WS Lee, JS Greenbaum, CA Greene, DD Blankenship, K Poinar, AL Forrest, DA Young, and CJ Zappa. Basal channels drive active surface hydrology and transverse ice-shelf fracture. Science Advances, 2018. https://doi.org/10.1126/sciadv.aao7212
  20. CA Greene and DD Blankenship. A Method of Repeat Photoclinometry for Detecting Kilometer-Scale Ice Sheet Surface Evolution. IEEE Transactions on Geoscience and Remote Sensing, 2018. https://doi.org/10.1109/TGRS.2017.2773364
  21. CA Greene, DD Blankenship, DE Gwyther, A Silvano, and E van Wijk. Wind causes Totten Ice Shelf melt and acceleration. Science Advances, 2017. https://doi.org/10.1126/sciadv.1701681
  22. CA Greene, DE Gwyther, and DD Blankenship. Antarctic Mapping Tools for Matlab. Computers and Geosciences, 2017. https://doi.org/10.1016/j.cageo.2016.08.003
  23. KM Thyng, CA Greene, RD Hetland, HM Zimmerle, and SF DiMarco. True colors of oceanography: Guidelines for effective and accurate colormap selection. Oceanography, 2016. https://doi.org/10.5670/oceanog.2016.66
  24. CJ Wilson, PS Wilson, CA Greene, KH Dunton. Seagrass meadows provide an acoustic refuge for estuarine fish. Marine Ecology Progress Series, 2013. https://doi.org/10.3354/meps10045
  25. CA Greene and PS Wilson. Laboratory investigation of a passive acoustic method for measurement of underwater gas seep ebullition. Journal of the Acoustical Society of America, 2011. https://doi.org/10.1121/1.3670590
  26. CJ Wilson, PS Wilson, CA Greene, and KH Dunton. Seagrass leaves in 3-D: Using computed tomography and low-frequency acoustics to investigate the material properties of seagrass tissue. Journal of Experimental Marine Biology and Ecology, 2010. https://doi.org/10.1016/j.jembe.2010.08.025

Projects

NASA-ISRO SAR Mission (NISAR)
PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment)