A cryogenically operated laser diode spectrometer for airborne measurement of stratospheric trace gases

Year: 2008

Authors: Viciani S., D’Amato F., Mazzinghi P., Castagnoli F., Toci G., Werle P.

Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata (CNR-INOA), L. go E. Fermi 6, 50125 Firenze, Italy; CNR – Istituto di Fisica Applicata

Abstract: A cryogenically operated laser diode spectrometer (COLD) for the airborne measurement of carbon monoxide is described. The instrument is designed, and fully qualified, for operation on a high-altitude aircraft and the scientific mission is the in situ measurement of trace gases in the upper troposphere and lower stratosphere. Sensitivities achieved so far during in-flight operation are a few ppbV with a time resolution of 4 s, coupled with a good reliability. Airborne data, obtained by COLD during research campaigns in Australia and Brazil in the frame of international projects, are also presented to demonstrate COLD in-flight performance.


Volume: 90 (3-4)      Pages from: 581  to: 592

KeyWords: Airborne telescopes; Carbon monoxide; Flight dynamics; Spectrometers; Trace analysis; Troposphere, Airborne measurement; Cryogenically operated laser diode spectrometer (COLD); High-altitude aircrafts; International projects; Trace gases, Semiconductor lasers; TDLS; Atmospheric concentrations
DOI: 10.1007/s00340-007-2885-2

Citations: 32
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