Observations of NO<sub>x</sub>, ΣPNs, ΣANs, and HNO<sub>3</sub> at a Rural Site in the California Sierra Nevada Mountains: summertime diurnal cycles
-
Published:2009-07-22
Issue:14
Volume:9
Page:4879-4896
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Day D. A.,Farmer D. K.,Goldstein A. H.,Wooldridge P. J.,Minejima C.,Cohen R. C.
Abstract
Abstract. Observations of NO, NO2, total peroxy nitrates (ΣPNs), total alkyl nitrates (ΣANs), HNO3, CO, O3, and meteorological parameters were obtained from October 2000 through February 2002 at 1315 m a.s.l., 38.9° N, 120.6° W on Sierra Pacific Industries land, adjacent to the University of California Blodgett Forest Research Station (UC-BFRS). We describe the data set with emphasis on the diurnal cycles during summertime 2001. We show that transport of the Sacramento urban plume is a primary factor responsible for diurnal variation in total reactive nitrogen mixing ratios as well as in NOx, ΣPNs and ΣANs, all of which exhibit a late afternoon/early evening peak. In contrast, HNO3 has a peak just after local noon indicating that HNO3 is in near steady state during the day with production due to photochemistry and removal by deposition and mixing with the background free troposphere. Boundary layer dynamics influence mixing ratios of all species in the early morning. Analysis of the morning feature suggests that higher mixing ratios of NOx and HNO3 persist in the residual layer than in the nocturnal boundary layer indicating the presence of nocturnal sinks of both species. Nighttime observations also indicate large HNO3 and ΣANs production through oxidation of alkenes by NO3.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference97 articles.
1. Aneja, V. P., Kim, D. S., Das, M., and Hartsell, B. E.: Measurements and analysis of reactive nitrogen species in the rural troposphere of Southeast United States: Southern oxidant study site SONIA, Atmos. Environ., 30, 649–659, 1996. 2. Atkinson, R., and Arey, J.: Gas-phase tropospheric chemistry of biogenic volatile organic compounds: a review, Atmos. Environ., 37, S197–S219, https://doi.org/10.1016/s1352-2310(03)00391-1, 2003. 3. Ban-Weiss, G. A., McLaughlin, J. P., Harley, R. A., Lunden, M. M., Kirchstetter, T. W., Kean, A. J., Strawa, A. W., Stevenson, E. D., and Kendall, G. R.: Long-term changes in emissions of nitrogen oxides and particulate matter from on-road gasoline and diesel vehicles, Atmos. Environ., 42, 220–232, https://doi.org/10.1016/j.atmosenv.2007.09.049, 2008. 4. Bauer, M. R., Hultman, N. E., Panek, J. A., and Goldstein, A. H.: Ozone deposition to a ponderosa pine plantation in the Sierra Nevada Mountains (CA): a comparison of two different climatic years, J. Geophys. Res.-Atmos., 105, 22123–22136, 2000. 5. Bertram, T. H. and Cohen, R. C.: A prototype instrument for the real time detection of semi-volatile organic and inorganic nitrate aerosol, Eos Trans. AGU, 84(46), Fall Meet. Suppl., San Francisco, USA, 8–12 December 2003, A51F-0740, 2003.
Cited by
43 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|