Seasonal significance of new particle formation impacts on cloud condensation nuclei at a mountaintop location
-
Published:2022-12-20
Issue:24
Volume:22
Page:15909-15924
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Hirshorn Noah S., Zuromski Lauren M., Rapp Christopher, McCubbin Ian, Carrillo-Cardenas Gerardo, Yu FangqunORCID, Hallar A. Gannet
Abstract
Abstract. New particle formation (NPF) events are defined as a
sudden burst of aerosols followed by growth and can impact climate by
growing to larger sizes and under proper conditions, potentially forming
cloud condensation nuclei (CCN). Field measurements relating NPF and CCN are
crucial in expanding regional understanding of how aerosols impact
climate. To quantify the possible impact of NPF on CCN formation, it is
important to not only maintain consistency when classifying NPF events but
also consider the proper timeframe for particle growth to CCN-relevant
sizes. Here, we analyze 15 years of direct measurements of both aerosol size
distributions and CCN concentrations and combine them with novel methods to
quantify the impact of NPF on CCN formation at Storm Peak Laboratory (SPL),
a remote, mountaintop observatory in Colorado. Using the new automatic
method to classify NPF, we find that NPF occurs on 50 % of all days
considered in the study from 2006 to 2021, demonstrating consistency with
previous work at SPL. NPF significantly enhances CCN during the winter by a
factor of 1.36 and during the spring by a factor of 1.54, which, when combined with
previous work at SPL, suggests the enhancement of CCN by NPF occurs on a
regional scale. We confirm that events with persistent growth are common in
the spring and winter, while burst events are more common in the summer and
fall. A visual validation of the automatic method was performed in the
study. For the first time, results clearly demonstrate the significant
impact of NPF on CCN in montane North American regions and the potential for
widespread impact of NPF on CCN.
Funder
Division of Atmospheric and Geospace Sciences
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference66 articles.
1. Albrecht, B. A.: Aerosols, Cloud Microphysics, and Fractional Cloudiness,
Science, 245, 1227–1230, https://doi.org/10.1126/science.245.4923.1227,
1989. 2. Amin, H., Atkins, P. T., Russo, R. S., Brown, A. W., Sive, B., Hallar, A.
G., and Huff Hartz, K. E.: Effect of Bark Beetle Infestation on Secondary
Organic Aerosol Precursor Emissions, Environ. Sci. Technol., 46, 5696–5703,
https://doi.org/10.1021/es204205m, 2012. 3. Bates, D. M. and Watts, D. G.: Nonlinear regression analysis and its
applications, Wiley, 1988. 4. Bianchi, F., Tröstl, J., Junninen, H., Frege, C., Henne, S., Hoyle, C.
R., Molteni, U., Herrmann, E., Adamov, A., Bukowiecki, N., Chen, X.,
Duplissy, J., Gysel, M., Hutterli, M., Kangasluoma, J., Kontkanen, J.,
Kürten, A., Manninen, H. E., Münch, S., Peräkylä, O.,
Petäjä, T., Rondo, L., Williamson, C., Weingartner, E., Curtius, J.,
Worsnop, D. R., Kulmala, M., Dommen, J., and Baltensperger, U.: New particle
formation in the free troposphere: A question of chemistry and timing, Science, 352,
1109–1112, https://doi.org/10.1126/science.aad5456, 2016. 5. Borys, R. D. and Wetzel, M. A.: Storm Peak Laboratory: A Research, Teaching,
and Service Facility for the Atmospheric Sciences, B. Am. Meteorol. Soc., 78, 2115–2124,
https://doi.org/10.1175/1520-0477(1997)078<2115:SPLART>2.0.CO;2, 1997.
Cited by
1 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
|
|