Airborne fourier infrared spectrometer system
Conference
·
OSTI ID:379498
- SRI International, Menlo Park, CA (United States)
A commercial Fourier Transform Infrared (FTIR) spectrometer has been interfaced to a 35 cm aperture telescope and a digital data processing and display system and flown in a downward-viewing configuration on a Queen Air aircraft. Real-time spectral analysis and display software were developed to provide the means to direct aircraft flight operations based on atmospheric and/or surface features identified on 1 to 8 cm{sup -1} resolution infrared spectra. Data are presented from ground-based tests consisting of simultaneous horizontal path measurements by the FTIR system and an infrared differential absorption lidar (DIAL) observing gas volumes generated in an open-ended chamber. Airborne FUR data are presented on the tracking of a surface-released puff of SF{sub 6} gas to a downwind distance of 45 km in a time period of 1.5 hours. The experiment demonstrated the real time tracking of a gas tracer cloud to provide atmospheric transport and diffusion information and for directing airborne in-situ sensors for optimum cloud sampling. 5 refs., 5 figs.
- OSTI ID:
- 379498
- Report Number(s):
- CONF-960613--
- Country of Publication:
- United States
- Language:
- English
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