O3 Spectra
Absolutely calibrated ozone absorption cross-sections for 11 temperatures (193K – 293K in steps of 10K) for UV-NIR spectral region
More details:
- Spectroscopy of Europe, vol. 23, 6, 2011, pp.14-17
http://www.spectroscopyeurope.com/articles/55-articles/3082-new-broadband-high-resolution-ozone-absorption-cross-sections
-AMT
http://www.atmos-meas-tech.net/7/609/2014/amt-7-609-2014.html
http://www.atmos-meas-tech.net/7/625/2014/amt-7-625-2014.html
Download the ASCII data, version 25.07.2012, zip, total size 12Mb [12.242 KB]
Download temperature coefficients between 300 and 370 nm from a quadratic fit [438 KB]
Version 22.07.2013: Fast Fourier Transform Filter applied to the initial data in the region 213.33 -317 nm
Download the ASCII data, version 22.07.2013, zip [7.910 KB]
Please, check for updates! Measurements with dual channel FTS are ongoing for the IR and region around 380 nm.
In case of any questions please email Dr. Victor Gorshelev: gorshelev@iup.physik.uni-bremen.de
| Source: |
IUP, MolSpec Lab, Serdyuchenko A., Gorshelev V, Weber M., Chehade W., Burrows JP. |
|
| Spectrometer: | Echelle Spectrometer ESA 4000 and Bruker HR 120 FTS | |
| Resolution (FWHM): |
0.02 nm below 290 nm 1 cm-1 between 290 nm and 350 nm 0.02 nm between 350 nm and 450 nm 1 cm-1 between 450 nm and 1100 nm |
|
| Grid: | interpolated on grid 0.01 nm | |
| Cell: | Double jacket quartz cell, thermo-insulated, pre-cooler, cryogenic cooling | |
| Absolute calibration: | using pure ozone pressure | |
| Uncertainty for absolute measurements at 50 mbar and 193 - 293K and path length 270 cm: | ||
| Systematic uncertainty |
Ozone impurity: oxygen purity 99.995% leaks <0.1%. Accuracy of pressure sensors: 0.04% (0.02 mb) Offset of the internal temperature sensors: <0.3-0.5% (1K) Cell length: <0.07% (<1 mm) Total: <0.5%, depending on temperature |
|
| Statistical uncertainty |
Ozone decay <1% Fluctuations of pressure: < 0.08% (<0.04mb) Fluctuations of temperature: <0.1 - 0.16% (<0.3K) Cooling efficiency: <0.3 - 1.6% (1-3K) Source intensity drift and white noise 0.1 - 70%, depending on spectral region |
|
| Concatenated spectra parameters: | ||
| Spectral regions: | Lightsource stability: | Optical density limits: |
| 213–290 nm | 0.5% | 0.5-2 |
| 290–310 nm | 2% | 0.1-2 |
| 310–340 nm | 1% | 0.1-2 |
| 340–450 nm | 1% | 0.05-1 |
| 450–750 nm | 0.2% | 0.5-2 |
| 750–1100 nm | 0.2% | 0.001-0.1 |
| column 1: | vacuum wavelength (nm) | |
| column 2: | cross section (cm2/molecule) | 293k |
| column 3: | cross section (cm2/molecule) | 283k |
| column 4: | cross section (cm2/molecule) | 273k |
| column 5: | cross section (cm2/molecule) | 263k |
| column 6: | cross section (cm2/molecule) | 253k |
| column 7: | cross section (cm2/molecule) | 243k |
| column 8: | cross section (cm2/molecule) | 233k |
| column 9: | cross section (cm2/molecule) | 223k |
| column 10: | cross section (cm2/molecule) | 213k |
| column 11: | cross section (cm2/molecule) | 203k |
| column 12: | cross section (cm2/molecule) | 193k |
- Last update July 2013