Details:

Journal Title:
Journal of Geophysical Research: Atmospheres
Personal Author:
McDuffie, Erin E. ; Fibiger, Dorothy L. ; Dubé, William P. ; Lopez‐Hilfiker, Felipe ; Lee, Ben H. ; ... More +
McDuffie, Erin E. ; Fibiger, Dorothy L. ; Dubé, William P. ; Lopez‐Hilfiker, Felipe ; Lee, Ben H. ; Thornton, Joel A. ; Shah, Viral ; Jaeglé, Lyatt ; Guo, Hongyu ; Weber, Rodney J. ; Michael Reeves, J. ; Weinheimer, Andrew J. ; Schroder, Jason C. ; Campuzano‐Jost, Pedro ; Jimenez, Jose L. ; Dibb, Jack E. ; Veres, Patrick ; Ebben, Carly ; Sparks, Tamara L. ; Wooldridge, Paul J. ; Cohen, Ronald C. ; Hornbrook, Rebecca S. ; Apel, Eric C. ; Campos, Teresa ; Hall, Samuel R. ; Ullmann, Kirk ; Brown, Steven S. Less -
NOAA Program & Office:
OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory)
OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory) Less -
Description:
Nocturnal dinitrogen pentoxide (N2O5) heterogeneous chemistry impacts regional air quality and the distribution and lifetime of tropospheric oxidants. Formed from the oxidation of nitrogen oxides, N2O5 is heterogeneously lost to aerosol with a highly variable reaction probability, (N2O5), dependent on aerosol composition and ambient conditions. Reaction products include soluble nitrate (HNO3 or NO3-) and nitryl chloride (ClNO2). We report the first-ever derivations of (N2O5) from ambient wintertime aircraft measurements in the critically important nocturnal residual boundary layer. Box modeling of the 2015 Wintertime INvestigation of Transport, Emissions, and Reactivity (WINTER) campaign over the eastern United States derived 2,876 individual (N2O5) values with a median value of 0.0143 and range of 2x10(-5) to 0.1751. WINTER (N2O5) values exhibited the strongest correlation with aerosol water content, but weak correlations with other variables, such as aerosol nitrate and organics, suggesting a complex, nonlinear dependence on multiple factors, or an additional dependence on a nonobserved factor. This factor may be related to aerosol phase, morphology (i.e., core shell), or mixing state, none of which are commonly measured during aircraft field studies. Despite general agreement with previous laboratory observations, comparison of WINTER data with 14 literature parameterizations (used to predict (N2O5) in chemical transport models) confirms that none of the current methods reproduce the full range of (N2O5) values. Nine reproduce the WINTER median within a factor of 2. Presented here is the first field-based, empirical parameterization of (N2O5), fit to WINTER data, based on the functional form of previous parameterizations.
Source:
Journal of Geophysical Research-Atmospheres, 123(8), 4345-4372.
DOI:
https://doi.org/10.1002/2018jd028336
Document Type:
Journal Article
Rights Information:
Other
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Submitted
Main Document Checksum:
[+]
urn:sha256:0a68f2f3cacd98c218d9f7e3fde5bfc68bced290e2769699e854871a93e69ad8
Download URL:
https://repository.library.noaa.gov/view/noaa/21737/noaa_21737_DS1.pdf
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