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Seminar by Ken Jucks |
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Date: November 15, 2005
Time: 2:00pm
Location: NIA, Rm 137
Photochemical Studies and Aura Validation Activities Using the FIRS-2 Far Infrared Spectrometer
Ken Jucks, Harvard-Smithsonian Center for Astrophysics
The FIRS-2 spectrometer is a high resolution far infrared FTS that has regularly flown from balloon platforms for 16 years.
With the spectral range (120 to 7 microns), and high resolution
(0.004 cm-1), spectral features from numerous atmospheric gases are of use for atmospheric sensing. This list includes H2O, HDO, H2(17)O, H2(18)O, O3, OH, HO2, H2O2, HCl, HOCl, ClNO3, HF, HNO3, NO2, HNO4, N2O5, N2O, CFC11, CFC12, HCFC22, CH4, SF6, OCS, C3H6O, HBr, and HOBr. Because of the large number of concentration profiles that can be retrieved, FIRS-2 is an ideal instrument to use for satellite validation and has been used to validate UARS, ADEOS, and Aura instruments over the years. Recent validation studies of Aura retrievals will be shown here. These data are also ideal for atmospheric photochemical studies, especially for reactive radicals like the HOx reactions and reactive chlorine reactions. I will summarize some of these studies as well.
The technology for FIRS-2 directly related to that needed for the LARC FIRST project and therefore was applied to the FIRST instrument.
This work will be summarized as well.
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