Search: onr:"swepub:oai:DiVA.org:su-119072" >
Primary marine aero...
Primary marine aerosol-cloud interactions off the coast of California
-
Modini, R. L. (author)
-
Frossard, A. A. (author)
-
Ahlm, L. (author)
-
show more...
-
Russell, L. M. (author)
-
Corrigan, C. E. (author)
-
Roberts, G. C. (author)
-
Hawkins, L. N. (author)
-
Schroder, J. C. (author)
-
Bertram, A. K. (author)
-
Zhao, R. (author)
-
Lee, A. K. Y. (author)
-
Abbatt, J. P. D. (author)
-
Lin, J. (author)
-
Nenes, A. (author)
-
Wang, Z. (author)
-
Wonaschuetz, A. (author)
-
Sorooshian, A. (author)
-
- Noone, Kevin J. (author)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM),Stockholm Univ, Dept Appl Environm Sci, S-10691 Stockholm, Sweden
-
Jonsson, H. (author)
-
Seinfeld, J. H. (author)
-
Toom-Sauntry, D. (author)
-
Macdonald, A. M. (author)
-
Leaitch, W. R. (author)
-
show less...
-
(creator_code:org_t)
- 2015
- 2015
- English.
-
In: Journal of Geophysical Research - Atmospheres. - 2169-897X .- 2169-8996. ; 120:9, s. 4282-4303
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Primary marine aerosol (PMA)-cloud interactions off the coast of California were investigated using observations of marine aerosol, cloud condensation nuclei (CCN), and stratocumulus clouds during the Eastern Pacific Emitted Aerosol Cloud Experiment (E-PEACE) and the Stratocumulus Observations of Los-Angeles Emissions Derived Aerosol-Droplets (SOLEDAD) studies. Based on recently reported measurements of PMA size distributions, a constrained lognormal-mode-fitting procedure was devised to isolate PMA number size distributions from total aerosol size distributions and applied to E-PEACE measurements. During the 12 day E-PEACE cruise on the R/V Point Sur, PMA typically contributed less than 15% of total particle concentrations. PMA number concentrations averaged 12 cm(-3) during a relatively calmer period (average wind speed 12m/s(1)) lasting 8 days, and 71cm(-3) during a period of higher wind speeds (average 16m/s(1)) lasting 5 days. On average, PMA contributed less than 10% of total CCN at supersaturations up to 0.9% during the calmer period; however, during the higher wind speed period, PMA comprised 5-63% of CCN (average 16-28%) at supersaturations less than 0.3%. Sea salt was measured directly in the dried residuals of cloud droplets during the SOLEDAD study. The mass fractions of sea salt in the residuals averaged 12 to 24% during three cloud events. Comparing the marine stratocumulus clouds sampled in the two campaigns, measured peak supersaturations were 0.20.04% during E-PEACE and 0.05-0.1% during SOLEDAD. The available measurements show that cloud droplet number concentrations increased with >100 nm particles in E-PEACE but decreased in the three SOLEDAD cloud events.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- sea spray aerosol
- marine aerosol
- cloud condensation nuclei
- stratocumulus clouds
- supersaturations
- aerosol-cloud interactions
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Modini, R. L.
-
Frossard, A. A.
-
Ahlm, L.
-
Russell, L. M.
-
Corrigan, C. E.
-
Roberts, G. C.
-
show more...
-
Hawkins, L. N.
-
Schroder, J. C.
-
Bertram, A. K.
-
Zhao, R.
-
Lee, A. K. Y.
-
Abbatt, J. P. D.
-
Lin, J.
-
Nenes, A.
-
Wang, Z.
-
Wonaschuetz, A.
-
Sorooshian, A.
-
Noone, Kevin J.
-
Jonsson, H.
-
Seinfeld, J. H.
-
Toom-Sauntry, D.
-
Macdonald, A. M.
-
Leaitch, W. R.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
- Articles in the publication
-
Journal of Geoph ...
- By the university
-
Stockholm University