WEEKLY COLLOQUIUM
Thursday, February 27, 2025
3:05 - 4:20 PM
Location: Biological Sciences, Room 334
High-Precision Molecular Spectroscopy in Support of NASA Space Missions and Instrument Design
Dr. Keeyoon Sung
Jet Propulsion Laboratory, California Institute of Technology
Spectroscopy is the foundation on which we base our remote sensing of terrestrial and planetary atmospheres. Since spectroscopic reference data are used as “fixed input” in radiative transfer calculations to best match with spectroscopic observations, during which the planetary conditions are usually to be discerned and quantified by adjusting the assumed physical parameters (pressure, temperatures, composition, abundances …) in the planetary models. Therefore, accurate and extensive knowledge of molecular spectroscopy associated with the observed atmospheric spectral features is essential for the proper interpretation of planetary spectra. In this talk, we present (1) how laboratory spectroscopy data are to be obtained and analyzed, (2) how the laboratory reference data are to be utilized to interpretation of observed features, and (3) how the laboratory spectroscopic data are to be used to design and develop a new instrument in support of a NASA space mission design. Primarily, however, we will focus on the topics related to high-resolution spectroscopy projects made at the JPL infrared molecular spectroscopy group in support of remote sensing of Titan stratosphere.
Spring 2025 Department of Physics and Astronomy Colloquium Schedule
(This schedule will be updated throughout the semester.)
- Thursday, February 6: Dr. Jose Rodriguez, CSULA, "Cooperative Order from Flat Electron Bands in Twisted Bi-Layer Graphene"
- Thursday, February 13:
- Thursday, February 20: Dr. Emilie Royer, CSULA, "The Night Sky’s Hidden Light: Airglow as a Window into Solar System Atmospheric Dynamics"
- Thursday, February 27: Dr. Keeyoon Sung, JPL/Caltech, "High-Precision Molecular Spectroscopy in Support of NASA Space Missions and Instrument Design"
- Thursday, March 6:
- Thursday, March 13:
- Thursday, March 20:
- Thursday, March 27:
- Thursday, April 3: Spring Break, No Colloquium
- Thursday, April 10:
- Thursday, April 17:
- Thursday, April 24:
- Thursday, May 1:
Thursday, May 8:
End of Spring 2025 Semester