Abstract
We describe a fully computer-controlled differential optical absorption spectroscopy (DOAS) system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure xenon lamp light sources to cover the area of a medium-sized city. A beam-finding servo system and automatic gain control allow unattended long-time monitoring. Using an astronomical code, celestial sources can also be searched and tracked. Selected wave-length regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra the path-averaged concentration of a number of important pollutants such as NO{sub 2}, SO{sub 2} and O{sub 3} can be evaluated. 22 refs, 9 figs
Citation Formats
Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S.
A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring.
Sweden: N. p.,
1993.
Web.
Edner, H, Ragnarson, P, Spaennare, S, & Svanberg, S.
A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring.
Sweden.
Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S.
1993.
"A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring."
Sweden.
@misc{etde_10117113,
title = {A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring}
author = {Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S}
abstractNote = {We describe a fully computer-controlled differential optical absorption spectroscopy (DOAS) system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure xenon lamp light sources to cover the area of a medium-sized city. A beam-finding servo system and automatic gain control allow unattended long-time monitoring. Using an astronomical code, celestial sources can also be searched and tracked. Selected wave-length regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra the path-averaged concentration of a number of important pollutants such as NO{sub 2}, SO{sub 2} and O{sub 3} can be evaluated. 22 refs, 9 figs}
place = {Sweden}
year = {1993}
month = {Dec}
}
title = {A differential optical absorption spectroscopy (DOAS) system for urban atmospheric pollution monitoring}
author = {Edner, H, Ragnarson, P, Spaennare, S, and Svanberg, S}
abstractNote = {We describe a fully computer-controlled differential optical absorption spectroscopy (DOAS) system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure xenon lamp light sources to cover the area of a medium-sized city. A beam-finding servo system and automatic gain control allow unattended long-time monitoring. Using an astronomical code, celestial sources can also be searched and tracked. Selected wave-length regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra the path-averaged concentration of a number of important pollutants such as NO{sub 2}, SO{sub 2} and O{sub 3} can be evaluated. 22 refs, 9 figs}
place = {Sweden}
year = {1993}
month = {Dec}
}