Title :
Spectroscopy of water vapor in the 930 nm to 960 nm spectral region
Author :
Williamson, C.K. ; Ismail, S. ; Browell, E.V.
Author_Institution :
Atmos. Sci. Div., NASA Langley Res. Center, Hampton, VA, USA
Abstract :
Summary form only given. A new laser is being developed for the LASE (Lidar Atmospheric Sensing Experiment) system around 946 nm. We have modified a system that characterizes water vapor in the 930-960 nm region of the spectrum for pressure shifts, broadening coefficients and cross-sections. The relative wavelength scale for each scan is determined with a Fabry Perot etalon and White cells with an adjustable pathlength up to 120 meters are used to measure pressure shifts.
Keywords :
atmospheric precipitation; atmospheric techniques; optical radar; remote sensing by laser beam; spectrochemical analysis; water; 930 to 960 nm; H/sub 2/O; LASE; Lidar Atmospheric Sensing Experiment; broadening coefficient; cross-section; pressure shift; water vapor spectroscopy; Absorption; Atmospheric measurements; Chemistry; Clouds; Extraterrestrial measurements; Sea measurements; Soil measurements; Spectroscopy; Terrestrial atmosphere; Wavelength measurement;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807628
