Recommendation of a consensus value of the ozone absorption cross-section at 253.65 nm based on a literature review. (4th April 2019)

• Record Type: Journal Article
• Authors: Hodges, J T; Viallon, J; Brewer, P J; Drouin, B J; Gorshelev, V; Janssen, C; Lee, S; Possolo, A; Smith, M A H; Walden, J; Wielgosz, R I
• Is Part Of: Metrologia. Volume 56:Number 3(2019:Jun.)
• Publication Date: 2019-04-04
• Subjects: ozone -- absorption cross-section -- reference data -- troposphere; Weights and measures -- Periodicals; Weights and Measures -- Periodicals; 530.805
• DOI: 10.1088/1681-7575/ab0bdd
• Languages: English
• ISSNs: 0026-1394

Abstract

Abstract: A detailed review and analysis of literature values for the absorption cross-section of ozone at room temperature at the mercury-line wavelength (253.65 nm, air) is reported. Data from fourteen independent sets of measurements spanning the years 1959–2016 were considered. The present analysis is based upon a revised assessment of all Type A and Type B uncertainty components for each previously reported cross-section. A consensus value for the absorption cross-section of 1.1329(35) × 10 −17 cm 2 molecule −1 is recommended based on statistical analysis of the weighted data. This new cross-section value is 1.23% lower and its uncertainty sixfold smaller than the uncertainty of the conventionally accepted reference value reported by Hearn (1961 Proc. Phys. Soc .78 932–40).