brion_1998#
J. Brion, A. Chakir, J. Charbonnier, D. Daumont, C. Parisse and J. Malicet, “Absorption spectra measurements for the ozone molecule in the 350-830 nm region”, J. Atmos. Chem. 30, 291 (1998)
Source record · Catalogue · Review register
Source kind: measurement
Recorded technique: The Reims method (daumont_1992, malicet_1995): Beer-Lambert law for a perfect gas, the ozone partial pressure P_O3 = 2[(P_O2)_i - P_T] from the total pressure (MKS Baratron, Delta P / P better than 0.1 %) during decomposition; O3 made as Griggs (1968); trace gases below 0.1 % (FTIR). Monochromatic light ‘(0.02 nm FWHM)’ from a Jobin-Yvon HR 640 monochromator, split into working and reference beams; a 1 m coolable stainless-steel multipass cell, path lengths up to 92 m, optical density 0.5-2; 295 K (whole range) and 218 K (515-650 nm), Pt sensors (0.05 K), gradients below 0.3 K; scans added, standard deviation between scans 0.9-2 % (pp. 292-293).
Materials in structured entries: O3
Dataset quantities: absorption_cross_section
Contents: 4 datasets; 0 formulas.
Curation notes#
Identity checked against the first page (PDF page 1, journal p. 291): Brion, Chakir, Charbonnier, Daumont, Parisse and Malicet, J. Atmos. Chem. 30, 291-299 (1998). Journal pages 291-299 = PDF pages 1-9. O3 only. The paper prints decimal commas.
Facts for the data files (the Reims/BDM visible set): - Range and temperatures: 350-830 nm at 295 K; 515-650 nm at 218 K (pp. 291-293). - Resolution and sampling: 0.02 nm FWHM (p. 292; ‘Delta lambda <= 0,02 nm FWHM’, p. 298); ‘determined for the whole 350-830 spectral region by steps of 0.01 nm’ (p. 294). - Wavelengths: medium not stated (the group’s calibration is in air, daumont_1992; Table II’s lines, He-Ne laser and mercury lamp lines, are given as air values: recorded as standard air, TC-186). Wavelength uncertainty 0.01 nm (p. 294). - Absolute scale: the pressure method, not normalised. - Uncertainty (Table I, image checked, p. 295): optical density 1 % (420-830 nm), 1-3 % (350-420 nm); optical path 0.1 %; ozone pressure 0.1 %; temperature 0.02 % (295 K), 0.15 % (218 K); impurities < 0.1 %; wavelength 0.1 % (420-830 nm), 0.1-0.7 % (350-420 nm); total systematic error about 1.5 % (420-830 nm), 1.5-4 % (350-420 nm); random error (RMS) 0.9-2 %. Text (p. 296): ‘the total uncertainty is about 1,5% for the Chappuis band region and about 4% near the absorption minimum’. Level not stated. - The published file: ‘available on request to the authors either by e-mail, or on floppy disk’ (p. 294).
Temperature effect (p. 298): 515-650 nm, the 218 and 295 K spectra overlap except near the two maxima, where the cross section increases by about 1 % as the temperature decreases; at 520 nm and 218 K below 1 % (against Burkholder and Talukdar’s 4 %).
Comparisons (pp. 296-297): Vigroux, Griggs, Penney and Anderson agree within 1 % but are 10 % above Inn and Tanaka and 4-5 % above Amoruso; Anderson and Mauersberger (1993) in the Wulf band 2-5 % below this work, at 3.1 nm FWHM. Table II’s deviation column (A&M or Hearn against this work) is derived and not extracted; it reproduces from the printed values to 0.02 % except at 543.516 nm (-1.51 % against the printed -1.53) and 594.096 nm (-2.41 % against -2.47), presumably from unrounded values.
Datasets: Table II (image checked) and the text values; the Table II caption gives sigma x 10^21 cm^2, scale 1e-21 to cm^2. This work’s values are points of the data file: ‘check’.
Recorded bibliographic identity status: VALIDATED_WITH_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.
Datasets#
brion_1998/present#
{
"id": "present",
"material": "O3",
"file": "O3/brion_1998__present.csv",
"table": "tbl_cc4f708ad271",
"quantity": "absorption_cross_section",
"unit": "cm2",
"scale": 1e-21,
"abscissa_unit": "nm",
"wavelength_medium": "standard_air",
"use": "check",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"temperature_k": 295.0
}
}
Table II ‘Present work’ at six lines (543.516-632.816 nm), with the printed +- (1.5 %, the total systematic error; level not stated) as sigma; 295 K. Points of the 295 K spectrum: a check.
brion_1998/anderson_mauersberger_1992#
{
"id": "anderson_mauersberger_1992",
"material": "O3",
"file": "O3/brion_1998__anderson_mauersberger_1992.csv",
"table": "tbl_cc4f708ad271",
"quantity": "absorption_cross_section",
"unit": "cm2",
"scale": 1e-21,
"abscissa_unit": "nm",
"wavelength_medium": "standard_air",
"use": "reproduced",
"reproduced_from": [
"Anderson, S. M. and Mauersberger, K., 1992: Geophys. Res. Lett. 19, 933"
],
"uncertainty": {
"column": true,
"level": "not stated"
}
}
Table II ‘Anderson and Mauersberger’ at five He-Ne laser lines, with their +-; temperature not stated here. The original is not in the library.
brion_1998/hearn_1961#
{
"id": "hearn_1961",
"material": "O3",
"file": "O3/brion_1998__hearn_1961.csv",
"table": "tbl_cc4f708ad271",
"quantity": "absorption_cross_section",
"unit": "cm2",
"scale": 1e-21,
"abscissa_unit": "nm",
"wavelength_medium": "standard_air",
"use": "reproduced",
"reproduced_from": [
"Hearn, A. G., 1961: Proc. Phys. Soc. London 78, 932"
],
"uncertainty": {
"column": true,
"level": "not stated"
}
}
Table II ‘Hearn’ at 576.96 nm (a mercury line), 4.76 +- 0.09; temperature not stated here. The original is not in the library.
brion_1998/text#
{
"id": "text",
"material": "O3",
"table": "text",
"quantity": "absorption_cross_section",
"unit": "cm2",
"scale": 1e-21,
"abscissa_unit": "nm",
"wavelength_medium": "standard_air",
"use": "check",
"uncertainty": {
"relative": 0.015,
"level": "not stated",
"relative_rows": {
"minimum_377.5": 0.04
}
},
"parameters": {
"temperature_k": 295.0
}
}
3 inline points in the source record.
p. 291: the Chappuis band’s ‘two maximum absorptions (sigma = 4.83 x 10^-21 cm^2 at 575 nm and sigma = 5.23 x 10^-21 cm^2 at 603 nm)’; p. 294: ‘A deep minimum is shown, for the first time at 377,5 nm (sigma = 4,4 x 10^-24 cm^2)’, entered as 0.0044 x 10^-21 (page images checked). 295 K. The maxima’s wavelengths are rounded to the nanometre; points of the spectrum: a check. About 1.5 % at the maxima, about 4 % near the minimum (p. 296; level not stated).
Formulas#
No formulas are recorded.
Corrections#
No dataset errata are recorded in this source record.
Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the review register for the checks and decisions.