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DOI10.1007/s10874-013-9257-6
Estimating surface NO2 and SO2 mixing ratios from fast-response total column observations and potential application to geostationary missions
Knepp, T.1,2; Pippin, M.2; Crawford, J.2; Chen, G.2; Szykman, J.3; Long, R.3; Cowen, L.2; Cede, A.4,5; Abuhassan, N.5,6; Herman, J.7; Delgado, R.7; Compton, J.7; Berkoff, T.7; Fishman, J.8; Martins, D.9; Stauffer, R.9; Thompson, A. M.9; Weinheimer, A.10; Knapp, D.10; Montzka, D.10; Lenschow, D.10; Neil, D.2
发表日期2015-09-01
ISSN0167-7764
卷号72期号:3-4页码:261-286
英文摘要

Total-column nitrogen dioxide (NO2) data collected by a ground-based sun-tracking spectrometer system (Pandora) and an photolytic-converter-based in-situ instrument collocated at NASA's Langley Research Center in Hampton, Virginia were analyzed to study the relationship between total-column and surface NO2 measurements. The measurements span more than a year and cover all seasons. Surface mixing ratios are estimated via application of a planetary boundary-layer (PBL) height correction factor. This PBL correction factor effectively corrects for boundary-layer variability throughout the day, and accounts for up to a parts per thousand 75 % of the variability between the NO2 data sets. Previous studies have made monthly and seasonal comparisons of column/surface data, which has shown generally good agreement over these long average times. In the current analysis comparisons of column densities averaged over 90 s and 1 h are made. Applicability of this technique to sulfur dioxide (SO2) is briefly explored. The SO2 correlation is improved by excluding conditions where surface levels are considered background. The analysis is extended to data from the July 2011 DISCOVER-AQ mission over the greater Baltimore, MD area to examine the method's performance in more-polluted urban conditions where NO2 concentrations are typically much higher.


英文关键词Nitrogen dioxide;Sulfur dioxide;Air quality;Remote sensing;DISCOVER-AQ;CAPABLE;GEO-CAPE
语种英语
WOS记录号WOS:000365789100005
来源期刊JOURNAL OF ATMOSPHERIC CHEMISTRY
来源机构美国环保署
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/61782
作者单位1.Sci Syst & Applicat Inc, Hampton, VA 23681 USA;
2.NASA, Langley Res Ctr, Hampton, VA 23681 USA;
3.US EPA, Durham, NC 27701 USA;
4.LuftBlick, A-6162 Kreith, Austria;
5.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA;
6.Morgan State Univ, Sch Engn, Baltimore, MD 21251 USA;
7.Univ Baltimore Cty, Joint Ctr Earth Syst Technol, Baltimore, MD 21250 USA;
8.St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA;
9.Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA;
10.Natl Ctr Atmospher Res, Boulder, CO 80305 USA
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Knepp, T.,Pippin, M.,Crawford, J.,et al. Estimating surface NO2 and SO2 mixing ratios from fast-response total column observations and potential application to geostationary missions[J]. 美国环保署,2015,72(3-4):261-286.
APA Knepp, T..,Pippin, M..,Crawford, J..,Chen, G..,Szykman, J..,...&Neil, D..(2015).Estimating surface NO2 and SO2 mixing ratios from fast-response total column observations and potential application to geostationary missions.JOURNAL OF ATMOSPHERIC CHEMISTRY,72(3-4),261-286.
MLA Knepp, T.,et al."Estimating surface NO2 and SO2 mixing ratios from fast-response total column observations and potential application to geostationary missions".JOURNAL OF ATMOSPHERIC CHEMISTRY 72.3-4(2015):261-286.
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