Sulfur dioxide absorption cross-section measurements from 290 nm to 317 nm

Brassington, D. J.

doi:10.1364/ao.20.003774

Cited by 72 publications

(16 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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].…”

Section: Somentioning

confidence: 99%

The HITRAN2012 molecular spectroscopic database

Rothman

Gordon

Babikov

et al. 2013

Journal of Quantitative Spectroscopy and Radiative Transfer

3,009

1,794

View full text Add to dashboard Cite

Section: Somentioning

confidence: 99%

The HITRAN2012 molecular spectroscopic database

Rothman

Gordon

Babikov

et al. 2013

Journal of Quantitative Spectroscopy and Radiative Transfer

3,009

1,794

View full text Add to dashboard Cite

“…The cross section of SO2 is 2.5 * 10-19 cm2 and 5.4 * 10-19 cm2 for 313 nm and 277 nm, respectively (Warneck et al, 1964: Brassington, 1981. Assuming the mixing ratio of 5O2 to be 5 ppb which is the typical value of rural atmospheres, no consideration of extinction of 5O2 in the extinction leads to about 1 % underestimation of the ozone density.…”

Section: Evaluation Proceduresmentioning

confidence: 99%

Measurement of Changes in Lower Tropospheric Ozone Distribution through One Day Using a Compact UV Solar-Blind Lidar

Uchiumi

Shibata

Maeda

1991

Journal of the Meteorological Society of Japan

View full text Add to dashboard Cite

Successive measurements of atmospheric ozone up to an altitude of 3 km through 24 hours have been made using a differential absorption lidar (DIAL). The wavelengths 277 nm and 313 nm were chosen for the DIAL taking into account the solar-blind effect due to to the stratospheric ozone. The performances of the compact ozone lidar developed are evaluated in the actual lidar observations, and it is demonstrated that the lower tropospheric ozone can be measured in daytime without deterioration in the SN ratio if the solar-blind effect is considered. The errors in the ozone concentration due to aerosols, NO2 and 502 are discussed and the data are corrected for the aerosols. It is expected that the altitude range can be extended from the ground to 10 km, making upward and downward observations from an airplane at altitudes of 3 km and 6 km. In three sets of successive measurements, the lidar was used to observe the ozone around the boundary between the free atmosphere and the Ekman layer. In the absence of a surface inversion layer, the nighttime ozone density in the mixed layer decreased considerably.

show abstract

“…lb. and [3] ) which may not be covered directly using a dye alone; consequently, an ADP nonlinear crystal was used to obtain, through SHG, by angular tuning, ultraviolet tunable radiation starting from a fundamental beam emitted by R6G in ethanol at 5 x 103M. The tunability range in this case was 280nm -305 urn.…”

Section: Experimental Set -Upmentioning

confidence: 99%

Differential absorption measurements of the NO 2 , SO 2 atmospheric pollutants

1995

View full text Add to dashboard Cite

Differential absorption measurements made in laboratory on air samples containing NO2 and SO2 atmospheric pollutants are reported. This type of measurements is necessary to calibrate remote sensing equipment conceived to monitor NO2 and SO2 in open atmosphere using LIDAR techniques and to perform preliminary laboratory studies on differential absorption specific to NO2 and SO2 molecules.To monitor the mentioned pollutants, a nitrogen laser pumped tunable dye laser s used, the laser pulse having the following characteristics: energy per pulse 40 iJ, repetition rate 5pps, pulse time width iOns. The dye ivelengths used to detect NO2 were 7on 2off 432.6 nm obtained from POPOP in DMSO and the spectral bandwidth was 0.7 nm; for SO2, ;k0 298 nm, 2off 299.5 nm and the spectral bandwidth was 0.2 nm, the laser beam being obtained from R6G and further SHG by an ADP crystal. The concentration interval for NO2 detection was 18.4 ppm to 26.4 ppm, whereas the measurements for SO2 pollutant ware performed at 6.4 ppm. The studied gases ware home made and the samples pollutant concentration was measured by mass spectrometry.

show abstract

Sulfur dioxide absorption cross-section measurements from 290 nm to 317 nm

Cited by 72 publications

References 11 publications

The HITRAN2012 molecular spectroscopic database

The HITRAN2012 molecular spectroscopic database

Measurement of Changes in Lower Tropospheric Ozone Distribution through One Day Using a Compact UV Solar-Blind Lidar

Differential absorption measurements of the NO 2 , SO 2 atmospheric pollutants

Contact Info

Product

Resources

About