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 Aerosols And Clouds: People
Richard  Roy's Picture
Jet Propulsion Laboratory
M/S 233-300
4800 Oak Grove Drive
Pasadena, AR 91109
Curriculum Vitae:

Richard Roy

Richard came to JPL after finishing his Ph.D. in the Department of Physics at the University of Washington, where his research utilized laser-cooled, ultracold atomic gases for fundamental studies of few and many-body quantum mechanics and quantum fluid dynamics. As a NASA Postdoctoral Program fellow at JPL, he helped lead the technological and scientific development of the Vapor In-cloud Profiling Radar (VIPR), a 170 GHz differential absorption cloud radar for humidity profiling inside of clouds and precipitation. He is also a lead member of the VIPR airborne deployment team, and a member of the CloudCube team developing compact, multi-frequency cloud and precipitation radar systems for future low-volume/low-cost space missions. In addition to instrument development, he is involved in study teams for future spaceborne instrument capability evaluation using simulators in the context of large-eddy simulation model atmospheres, and conducts studies using spaceborne observations to evaluate and improve weather and climate models.

  • Ph.D., Physics, University of Washington (UW), Seattle, 2017
  • B.S., Physics (with honors) and Mathematics (with honors), University of Puget Sound (UPS), 2011

Research Interests
  • Research and development of new cloud radar technologies and measurement capabilities
  • Ground-based, airborne, and spaceborne remote sensing of clouds, precipitation, and water vapor
  • Retrieval algorithm development and product validation
  • Spaceborne instrument simulators
  • Multi-frequency radar observations for cloud microphysics studies
  • Assessing climate and weather models with observations


CloudSat Icon CloudSat
CloudSat is an experimental satellite that uses radar to study clouds and precipitation from space. CloudSat flys in orbital formation as part of the A-Train constellation of satellites (Aqua, CloudSat, CALIPSO, PARASOL, and Aura).

Professional Experience
  • Jet Propulsion Laboratory, California Institute of Technology
    • Research Technologist, Aerosols and Clouds group (2019-present)
    • NASA Postdoctoral Program (NPP) Fellow, Submillimeter Wave Technology group (2017-2019)
  • Department of Physics, Seattle University
    • Adjust Physics Professor, Course in Light, Optics, and Wave Phenomena (Winter 2017)
  • Department of Physics, University of Washington, Seattle
    • Graduate Student Researcher (2011-2017)
    • Graduate Teaching Assistant (Fall 2011)

Selected Awards
  • JPL Voyager Award (2019)
  • NASA Postdoctoral Program Fellowship (2017-2019)
  • UW Physics, Henderson Thesis Prize for an outstanding PhD thesis (2018)
  • UW Physics, Hans G. Dehmelt Prize for outstanding achievements in experimental physics (2015)
  • UW Physics, Kenneth Young Memorial Recruitment Fellowship (2011)
  • UPS Mathematics and Computer Science, Edward Goman Outstanding Senior Award (2011)
  • UPS Physics, Raymond and Olive Seward Outstanding Senior Award (2011)

Selected Publications
  1. R. Roy, M. Lebsock, L. Millán, and K. B. Cooper, 2020: Validation of a G-Band Differential Absorption Cloud Radar for Humidity Remote Sensing. J. Atmos. Oceanic Technol., 37, 1085-1102,
  2. L. Millán, R. Roy, and M. Lebsock, 2020: Assessment of global total column water vapor sounding using a spaceborne differential absorption radar. Atmos. Meas. Tech. Discuss.,, in review.
  3. K. Cooper, R. Roy, et al., 2020: G-Band Radar for Humidity and Cloud Remote Sensing. IEEE Transactions on Geoscience and Remote Sensing,
  4. A. Battaglia, P. Kollias, R. Dhillon, R. Roy, S. Tanelli, K. Lamer, et al., 2020: Space‐borne cloud and precipitation radars: status, challenges and ways forward. Reviews of Geophysics, 58, e2019RG000686
  5. R. Roy, M. Lebsock, L. Millán, R. Dengler, R. Rodriguez Monje, J. Siles, and K. Cooper, 2018: Boundary-layer water vapor profiling using differential absorption radar, Atmos. Meas. Tech., 11, 6511-6523,
  6. R. Roy, A. Green, R. Bowler, and S. Gupta, 2017: Two-element mixture of Bose and Fermi superfluids, Phys. Rev. Lett., 118, 055301,

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