High-resolution spectroscopy of SO2 using a frequency-doubled pulsed dye laser, with application to the remote sensing of atmospheric pollutants

UV absorption cross-sections of selected sulfur-containing compounds at temperatures up to 500°C

“…Although the absorption cross-sections of sulfur dioxide (SO 2 ) have been investigated heavily in the UV range for various applications, wavelengths [1,7], temperatures [8] and isotopic variances [9], the same has not been done for other small sulfur containing molecules. Particularly, the absorption cross-sections of hydrogen sulfide (H 2 S), carbon disulfide (CS 2 ) and carbonyl sulfide (OCS or COS) have not been adequately determined above room temperature.…”

“…Absorption cross-sections of molecules are important spectroscopic data and are used in a variety of applications for identification and quantification of the compounds in various multi-component environments such as environmental monitoring and control and sensor developments [1]. Although absorption cross-sections for many compounds have been investigated thoroughly at room temperature (approximately 21 1C/294 K) both theoretically and experimentally, their temperature dependence, especially at higher temperatures, has not been investigated extensively.…”

The HITRAN 2008 molecular spectroscopic database

“…Sulfur dioxide absorption cross-sections have already been extensively investigated in the 250 to 345 nm region at room temperature [340][341][342][343][344][345][346][347][348][349][350][351][352][353][354]. The temperature dependence was mainly investigated by looking at temperatures lower than room temperature [349,350,353].…”

DIAL techniques for the control of sulfur dioxide emissions

“…4-6. During the last few years the DIAL technique has been elaborated for studies on SO 2 . Some of the early progress was made by Grant and Hake 7 and Hoell et al 8 In our group, which was then located at the Chalmers University of Technology, Goteborg, DIAL studies on SO 2 were initiated in 1977.9 Laboratory measurements of the absorption spectra of the gas were performed by, e.g., Woods et al 10 and Brassington."' When the principles of the technique were demonstrated there still remained an evaluation process of the DIAL technique and the lidar instruments to make measurements reliable and useful to people working on air pollution problems.…”