SAFIRE-A: Spectroscopy of the Atmosphere Using Far-Infrared Emission/Airborne
| Autor: | Marco Ridolfi, Bruno Carli, Ugo Cortesi, A. G. Murray, P. H. G. Dickinson, Jean Leotin, Michele Epifani, I. G. Nolt, Alessandro Gignoli, C. Keim, Francesco Mencaraglia, Clare Lee, Peter A. R. Ade, C. Meny, Fred Gannaway |
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| Rok vydání: | 1999 |
| Předmět: |
Physics
Atmospheric Science business.industry Detector Resolution (electron density) Astrophysics::Instrumentation and Methods for Astrophysics Ocean Engineering Atmosphere Optics Far infrared Band-pass filter Brightness temperature Polar Astrophysics::Earth and Planetary Astrophysics business Spectroscopy Physics::Atmospheric and Oceanic Physics QB Remote sensing |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1520-0426 0739-0572 |
| DOI: | 10.1175/1520-0426(1999)016<1313:sasota>2.0.co;2 |
| Popis: | A new instrument named SAFIRE-A (Spectroscopy of the Atmosphere using Far-Infrared Emission/Airborne), which can operate on high-altitude platforms, has been developed for the study of the atmospheric composition through limb-scanning emission measurements. The instrument is a polarizing Fourier transform spectrometer that operates in the far infrared with a resolution of 0.004 cm(−1). SAFIRE-A uses efficient photon noise limited detectors and a novel optical configuration, which provide a cold pupil and field stop as well as cold narrow bandpass filters to enhance its sensitivity. The instrument was successfully operated on an M-55 stratospheric research aircraft in the polar regions during the winter 1996–97 Airborne Polar Experiment. The instrument design, aircraft integration, and performances attained in the field campaign are described and discussed. The atmospheric emission spectrum is measured with an rms noise accuracy of 0.5 K (measured in brightness temperature) in each spectral element near 20 cm(−1) with a 30-s measurement time. |
| Databáze: | OpenAIRE |
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