Title
In situ laboratory sea spray production during the Marine Aerosol Production 2006 cruise on the northeastern Atlantic Ocean
Author
TNO Bouw en Ondergrond
Hultin, K.A.H.
Nilsson, E.D.
Krejci, R.
Mrtensson, E.M.
Ehn, M.
Hagström, Å.
de Leeuw, G.
Publication year
2010
Abstract
Bubbles bursting from whitecaps are considered to be the most effective mechanism for particulate matter to be ejected into the atmosphere from the Earth's oceans. To realistically predict the climate effect of marine aerosols, global climate models require process-based understanding of particle formation from bubble bursting. During a cruise on the highly biologically active waters of the northeastern Atlantic Ocean in the summer of 2006, the submicrometer primary marine aerosol produced by a jet of seawater impinging on a seawater surface was investigated. The produced aerosol size spectra were centered on 200 nm in dry diameter and were conservative in shape throughout the cruise. The aerosol number production was negatively correlated with dissolved oxygen (DO) in the water (r < -0.6 for particles of dry diameter Dp > 200 nm). An increased surfactant concentration as a result of biological activity affecting the oxygen saturation is thought to diminish the particle production. The lack of influence of chlorophyll on aerosol production indicates that hydrocarbons produced directly by the photosynthesis are not essential for sea spray production. The upward mixing of deeper ocean water as a result of higher wind speed appears to affect the aerosol particle production, making wind speed influence aerosol production in more ways than by increasing the amount of whitecaps. The bubble spectra produced by the jet of seawater was representative of breaking waves at open sea, and the particle number production was positively correlated with increasing bubble number concentration with a peak production of 40-50 particles per bubble. Copyright 2010 by the American Geophysical Union.
Subject
Aerosol particles
Aerosol production
Aerosol size
Atlantic Ocean
Biological activities
Breaking waves
Bubble bursting
Climate effects
Effective mechanisms
Global climate model
In-situ
Marine aerosols
Number concentration
Ocean water
Oxygen saturation
Particle formations
Particle numbers
Particle production
Particulate Matter
Sea spray
Submicrometers
Surfactant concentrations
Wind speed
Chlorophyll
Climate models
Dissolution
Dissolved oxygen
Dissolved oxygen sensors
Hydrocarbons
Oceanography
Porphyrins
Seawater
Surface active agents
Wind effects
Atmospheric aerosols
aerosol formation
bubble
climate effect
climate modeling
correlation
dissolved oxygen
hydrocarbon
in situ measurement
laboratory method
marine environment
photosynthesis
seawater
spectrum
summer
Atlantic Ocean
Atlantic Ocean (Northeast)
Vindula arsinoe
Earth & Environment
CAS - Climate, Air and Sustainability
EELS - Earth, Environmental and Life Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:e77dd625-e15e-40c1-b391-2968b6e50b60
DOI
https://doi.org/10.1029/2009jd012522
TNO identifier
347464
ISSN
0148-0227
Source
Journal of Geophysical Research D: Atmospheres, 115 (115), 1-19
Document type
article