Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-1271-2017 |
Detection of water vapour absorption around 363 nm in measured atmospheric absorption spectra and its effect on DOAS evaluations | |
Lampel, Johannes1,5; Poehler, Denis2; Polyansky, Oleg L.3,4; Kyuberis, Aleksandra A.4; Zobov, Nikolai F.4; Tennyson, Jonathan3; Lodi, Lorenzo3; Friess, Udo2; Wang, Yang1; Beirle, Steffen1; Platt, Ulrich2; Wagner, Thomas1 | |
2017-01-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; England; Russia |
英文摘要 | Water vapour is known to absorb radiation from the microwave region to the blue part of the visible spectrum with decreasing efficiency. Ab initio approaches to model individual absorption lines of the gaseous water molecule predict absorption lines up to its dissociation limit at 243 nm. We present the first evidence of water vapour absorption near 363 nm from field measurements using data from multi-axis differential optical absorption spectroscopy (MAX-DOAS) and long-path (LP)-DOAS measurements. The identification of the absorptions was based on the recent "POKAZATEL" line list by Polyansky et al. (2017). For MAX-DOAS measurements, we observed absorption by water vapour in an absorption band around 363 nm with optical depths of up to 2 x 10(-3). The retrieved column densities from 2 months of measurement data and more than 2000 individual observations at different latitudes correlate well with simultaneously measured well-established water vapour absorptions in the blue spectral range from 452 to 499 nm (R-2 = 0.89), but the line intensities at around 363 nm are underestimated by a factor of 2.6 +/- 0.5 by the ab initio model. At a spectral resolution of 0.5 nm, we derive a maximum cross section value of 2.7 x 10(-27) cm(2) molec(-1) at 362.3 nm. The results were independent of the used literature absorption cross section of the O-4 absorption, which overlays this water vapour absorption band. Also water vapour absorption around 376 nm was identified. Below 360 nm no water vapour absorption above 1.4 x 10(-26) cm(2) molec(-1) was observed. The newly found absorption can have a significant impact on the spectral retrievals of absorbing trace-gas species in the spectral range around 363 nm. Its effect on the spectral analysis of O-4, HONO and OClO is discussed. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394604000003 |
WOS关键词 | MOLECULAR LINE LISTS ; CROSS-SECTIONS ; TEMPERATURE-DEPENDENCE ; DERIVE INFORMATION ; LIMB MEASUREMENTS ; 000 CM(-1) ; MT. ETNA ; IN-SITU ; SPECTROSCOPY ; BRO |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23869 |
专题 | 地球科学 |
作者单位 | 1.Max Planck Inst Chem, D-55128 Mainz, Germany; 2.Heidelberg Univ, Inst Environm Phys, D-69120 Heidelberg, Germany; 3.UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England; 4.Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod, Russia; 5.Heidelberg Univ, Inst Environm Phys, D-69120 Heidelberg, Germany |
推荐引用方式 GB/T 7714 | Lampel, Johannes,Poehler, Denis,Polyansky, Oleg L.,et al. Detection of water vapour absorption around 363 nm in measured atmospheric absorption spectra and its effect on DOAS evaluations[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(2). |
APA | Lampel, Johannes.,Poehler, Denis.,Polyansky, Oleg L..,Kyuberis, Aleksandra A..,Zobov, Nikolai F..,...&Wagner, Thomas.(2017).Detection of water vapour absorption around 363 nm in measured atmospheric absorption spectra and its effect on DOAS evaluations.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(2). |
MLA | Lampel, Johannes,et al."Detection of water vapour absorption around 363 nm in measured atmospheric absorption spectra and its effect on DOAS evaluations".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.2(2017). |
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