Remote sensing of chemical vapours by differential FTIR radiometry

Autor:	J.-M. Theriault, E. Puckrin
Rok vydání:	2005
Předmět:	Atmospheric sounding Interferometry Data acquisition Materials science Spectrometer Infrared Instrumentation General Earth and Planetary Sciences Radiometry Fourier transform infrared spectroscopy Remote sensing
Zdroj:	International Journal of Remote Sensing. 26:981-995
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431160512331316423
Popis:	This paper presents a novel method for the passive remote sensing of chemical vapours by differential radiometry. The originality of the method lies in the use of a double‐input beam Fourier‐transform infrared (FTIR) spectrometer optimized for optical subtraction. A description of the interferometer (compact atmospheric sounding interferometer (CATSI)) is given along with the detection algorithm (gaseous emission monitoring algorithm (GASEM)) that controls the interferometer data acquisition and performs the on‐line monitoring of chemical vapour parameters. The differential detection method has been successfully tested for several chemical vapours over distances of several hundred metres during open‐air experiments held at Defence Research and Development Canada (DRDC)—Valcartier and Ft Riley, Kansas. In particular, the detection method has been used to map the integrated concentration (column amount) and the temperature of a plume of methanol vapour. In this case, the uncertainties in the methanol plume ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::92c55255e706a1fe2660e29bdcf60b43 https://doi.org/10.1080/01431160512331316423 Zobrazit plný text záznamu