Articles | Volume 17, issue 23
https://doi.org/10.5194/acp-17-14747-2017
https://doi.org/10.5194/acp-17-14747-2017
Research article
 | 
12 Dec 2017
Research article |  | 12 Dec 2017

Observational assessment of the role of nocturnal residual-layer chemistry in determining daytime surface particulate nitrate concentrations

Gouri Prabhakar, Caroline L. Parworth, Xiaolu Zhang, Hwajin Kim, Dominique E. Young, Andreas J. Beyersdorf, Luke D. Ziemba, John B. Nowak, Timothy H. Bertram, Ian C. Faloona, Qi Zhang, and Christopher D. Cappa

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DISCOVER-AQ Data and Information Atmospheric Science Data Center https://doi.org/10.5067/Aircraft/DISCOVER-AQ/Aerosol-TraceGas

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Short summary
This work assesses the processes that control the ambient concentrations of particulate nitrate in the the wintertime San Joaquin Valley of California through a combination of aircraft and surface measurements made during the DISCOVER-AQ study. We provide an observational demonstration of how nocturnal production and advection in aloft layers combines with daytime production and loss from entrainment and deposition to give rise to a distinct diurnal profile in surface nitrate concentrations.
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