el_helou_2005 ============= Z\. El Helou, S\. Churassy, G\. Wannous, R\. Bacis and E\. Boursey, "Absolute cross sections of ozone at atmospheric temperatures for the Wulf and the Chappuis bands", J\. Chem\. Phys\. 122, 244311 \(2005\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1063/1\.1937369 `__ **Source kind:** measurement **Recorded technique:** Fourier\-transform absorption \(BOMEM DA03, 4 cm^\-1 resolution, 600 scans; silicon\-avalanche detector, and a liquid\-nitrogen\-cooled InGaAs detector for the three lowest Wulf bands\) of pure ozone in two White multipass cells\: the LASIM low\-temperature cell \(131\.3 cm per pass, 4 to 20 passes, 300 to 77 \+\- 0\.5 K, mirrors outside the gas\) and the Reims cell \(99\.9 cm per pass \+ 18 cm, down to 223\-225 K\)\. Cross section sigma = absorbance x 23844\.948 x T / \(L p\) for a perfect gas \(Eqs\. 5\-8\), the ozone pressure taken as the mean of the initial and final pressures during the decomposition 2 O3 \-\> 3 O2 \(Eqs\. 1\-4; decomposition kept below 1 % per record\)\. Chappuis band 15 500\-18 500 cm^\-1 at 293, 223, 175 and 144 K \(LASIM\) and 291 and 225 K \(Reims\); Wulf bands 9000\-13 700 cm^\-1 at 294, 222 and 150 K \(pp\. 2\-4, 7\)\. **Materials in structured entries:** O3 **Dataset quantities:** absorption\_cross\_section **Contents:** 13 datasets; 0 formulas. Curation notes -------------- Identity checked on the first page \(PDF page 1\)\: the five authors of the citation, J\. Chem\. Phys\. 122, 244311 \(2005\); PDF pages 1\-9 = article pages 244311\-1 to \-9\. The library copy is the authors' PDF from the Bremen ozone archive \(acquisition provenance\: 'different front\-page DOI'\); title, authors and journal reference on the first page agree\. O3 only\. Every value is read from the paper's tables, which give the cross section at the five He\-Ne laser lines of the Chappuis band and at eight Wulf\-band maxima, 'deduced from data displayed in' the figures \(Table I caption\)\. The spectra themselves are shown only in figures \(Figs\. 5, 6, 8\-11\)\: not digitised\. Uncertainty\: the bracketed values, '\+\-0\.82 %' for the LASIM cell and '\+\-0\.71 %' for the Reims cell \+ FTS \(Ref\. 20\: their own JQSRT paper, then in press\); 'an overall uncertainty of about 0\.8 %' \(p\. 8\)\. Level not stated\. Anderson's values are '\+\-1 SD' \(Table IV, Table VII\)\. Wavenumbers\: FTS wavenumbers, vacuum\. The He\-Ne lines 15798\.01, 16336\.12, 16534\.93, 16827\.63 and 18393\.61 cm^\-1 are 632\.99, 612\.14, 604\.78, 594\.26 and 543\.67 nm in vacuum\. Temperature dependence \(the paper's finding\)\: the Chappuis cross section falls as the temperature falls, by 1\.5\-4\.1 % from 293 to 223 K and 4\.2\-6\.7 % from 293 to 144 K \(Tables I, V\); the Wulf bands rise, by \+91 % at the \(0,0\) origin and \+2 % to \-2 % near 13 000 cm^\-1 from 294 to 150 K \(Table VIII\)\. The Reims cell confirms the Chappuis fall \(1\.6\-3\.6 % from 291 to 225 K, Table III\)\. Misprints \(no data affected\)\: Table III labels both rows 'T=225 K'; the first is the 291 K row \(Table IV, and the table's own '\(291\-225 K\)' line\)\. Table II gives the Reims cell temperature as 295 K, Tables III\-IV as 291 K; the 291 K of Table IV is recorded\. Table II's reference numbers \('Ref\. 14', 'Ref\. 13'\) do not match the reference list \(Ref\. 13 is Inn and Tanaka, Ref\. 14 Orphal\); the caption names Brion et al\. \(Ref\. 8\) and the LASIM cell paper \(Ref\. 20\)\. Table VII's column head prints lambda for sigma\. Repeated rows \(checked equal by the extraction\)\: Tables I, II \(FTS row\), III and VI repeat rows of Table IV; Table VIII repeats Table VII's 294 and 150 K columns \(its last row prints the uncertainties 0\.35, Table VII 0\.36\)\. Register\: TC\-972\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- el\_helou\_2005/lasim\_293 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_293", "material": "O3", "file": "O3/el_helou_2005__lasim_293.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 293.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6; also Table I, p\. 4\), 'Our cell \(293 K\)'\: the LASIM cell, Chappuis band at the five He\-Ne lines\. el\_helou\_2005/lasim\_223 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_223", "material": "O3", "file": "O3/el_helou_2005__lasim_223.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 223.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6; also Table I\), 'Our cell \(223 K\)'\. el\_helou\_2005/lasim\_175 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_175", "material": "O3", "file": "O3/el_helou_2005__lasim_175.csv", "table": "tbl_b54e332b1d7d", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 175.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table VI \(p\. 7\), 'T=175 K' \('at \-98 C'\), the LASIM cell; 'taken from Fig\. 8'\. el\_helou\_2005/lasim\_144 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_144", "material": "O3", "file": "O3/el_helou_2005__lasim_144.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 144.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6; also Table I\), 'Our cell \(144 K\)' \(Table I\: 'T=144 K'; the text and Fig\. 5 give 144\.3 K\)\. el\_helou\_2005/reims\_291 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "reims_291", "material": "O3", "file": "O3/el_helou_2005__reims_291.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 291.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6\), 'Reims cell \(291 K\)'\: the Reims White cell on the LASIM FTS \(also Table II's FTS row, labelled 295 K, and Table III's first row, mislabelled 225 K\)\. The authors' own measurement in a second cell, an independent check of their LASIM values\. el\_helou\_2005/reims\_225 ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "reims_225", "material": "O3", "file": "O3/el_helou_2005__reims_225.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 225.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6\), 'Reims cell \(225 K\)' \(also Table III's second row\)\. el\_helou\_2005/anderson\_1992 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "anderson_1992", "material": "O3", "file": "O3/el_helou_2005__anderson_1992.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "reproduced", "reproduced_from": [ "S. M. Anderson and K. Mauersberger, Geophys. Res. Lett. 19, 933 (1992)" ], "parameters": { "temperature_k": 293.0 }, "uncertainty": { "column": true, "level": "1 sigma" } } Table IV \(p\. 6\), 'Anderson sigma \(\+\-1 SD\)', footnote a \(Ref\. 9\); room temperature \(the caption; not stated more closely\)\. The same values as brion\_1998/anderson\_mauersberger\_1992 at the He\-Ne lines\. el\_helou\_2005/orphal\_2003 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "orphal_2003", "material": "O3", "file": "O3/el_helou_2005__orphal_2003.csv", "table": "tbl_69e3ef0c7fa6", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "reproduced", "reproduced_from": [ "J. Orphal, J. Photochem. Photobiol. A 157, 185 (2003)" ], "uncertainty": { "column": true, "level": "not stated" } } Table IV \(p\. 6\), 'Orphal', footnote b \(Ref\. 14\)\: 'averaged values deduced by Orphal' at room temperature \(p\. 6\), a review average, not a measurement\. Level of the bracketed values not stated\. el\_helou\_2005/brion\_1998\_mono ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "brion_1998_mono", "material": "O3", "file": "O3/el_helou_2005__brion_1998_mono.csv", "table": "tbl_2cd50501f353", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "reproduced", "reproduced_from": [ "brion_1998" ], "parameters": { "temperature_k": 295.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 5\), 'Reims White cell \+ monochromator \.\.\. \(\+\-1\.5 %\) T=295 K'\: Brion et al\.'s measurement \(the caption's Ref\. 8; the row prints 'Ref\. 14'\), the same values as brion\_1998/present at the He\-Ne lines to the printed digits\. The FTS row of the same table is reims\_291\. el\_helou\_2005/lasim\_wulf\_294 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_wulf_294", "material": "O3", "file": "O3/el_helou_2005__lasim_wulf_294.csv", "table": "tbl_f1e1ad15b4c2", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 294.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table VII \(p\. 8\), 'LASIM cell \+\-0\.82 % \(294 K\)'\: eight Wulf\-band maxima, rows by wavenumber with the band assignment \(nu1', nu2'\) as printed \('Y ?' and '\(3,0\) ?' for the two highest, uncertain\)\. 'Taken from Figs\. 10 and 11'\. The \(0,0\) origin and \(1,0\) bands are the first measured \(p\. 7\)\. el\_helou\_2005/lasim\_wulf\_222 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_wulf_222", "material": "O3", "file": "O3/el_helou_2005__lasim_wulf_222.csv", "table": "tbl_f1e1ad15b4c2", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 222.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table VII \(p\. 8\), 'LASIM cell \+\-0\.82 % \(222 K\)'\. el\_helou\_2005/lasim\_wulf\_150 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lasim_wulf_150", "material": "O3", "file": "O3/el_helou_2005__lasim_wulf_150.csv", "table": "tbl_f1e1ad15b4c2", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "primary", "parameters": { "temperature_k": 150.0 }, "uncertainty": { "column": true, "level": "not stated" } } Table VII \(p\. 8\), 'LASIM cell \+\-0\.82 % \(150 K\)' \(also Table VIII\)\. el\_helou\_2005/anderson\_1993\_wulf ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "anderson_1993_wulf", "material": "O3", "file": "O3/el_helou_2005__anderson_1993_wulf.csv", "table": "tbl_f1e1ad15b4c2", "quantity": "absorption_cross_section", "unit": "cm2", "scale": 1e-23, "abscissa_unit": "cm-1", "use": "reproduced", "reproduced_from": [ "S. M. Anderson, P. Hupalo and K. Mauersberger, Geophys. Res. Lett. 20, 1579 (1993)" ], "parameters": { "temperature_k": 293.0 }, "uncertainty": { "column": true, "level": "1 sigma" } } Table VII \(p\. 8\), 'Anderson \+\-1 SD \(293 K\)', footnote a \(Ref\. 19\)\: four of the eight bands, \(2,0\) to \(3,1\)\. 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 :doc:`review register ` for the checks and decisions.