diffuse to any significant height above the ocean (though can be taken up by
the wind gust and fly some distance in the horizontal direction before
reentering the ocean surface). The largest droplets may therefore have eluded
complete characterization during previous experiments.
6.2.4 Primary aerosol number distributions
The size distribution function of bubbles in the upper ocean, which are
the primary source of marine aerosols, depends on the temperature, salinity,
and surfactants. The primary marine aerosol generation is expected to
depend on these parameters as well. Figure 6-10 and Figure 6-11 show
results of a laboratory experiment for quantifying the salinity and
temperature dependence of primary marine aerosol generation.
Figure 6-10. Number distributions of primary aerosols produced from bubbles in water with
salinity of 0.0‰ (dotted line), 9.2‰ (dashed line), and 33.0‰ (solid line) in a laboratory
Figure 6-10 illustrates the effect of salinity on the dry aerosol number
concentration (N p cm
-3 ). For the interpretation of this graph recall that for a
Chapter 6: HIGH WIND SPEED REGIME
419
experiment. Water temperature was 23°C. Reproduced from M rtensson et al. (2003) by
similar drop size spectrum at formation, the less saline droplets produced at
permission from American Geophysical Union.
å
the wind gust and fly some distance in the horizontal direction before
reentering the ocean surface). The largest droplets may therefore have eluded
complete characterization during previous experiments.
6.2.4 Primary aerosol number distributions
The size distribution function of bubbles in the upper ocean, which are
the primary source of marine aerosols, depends on the temperature, salinity,
and surfactants. The primary marine aerosol generation is expected to
depend on these parameters as well. Figure 6-10 and Figure 6-11 show
results of a laboratory experiment for quantifying the salinity and
temperature dependence of primary marine aerosol generation.
Figure 6-10. Number distributions of primary aerosols produced from bubbles in water with
salinity of 0.0‰ (dotted line), 9.2‰ (dashed line), and 33.0‰ (solid line) in a laboratory
Figure 6-10 illustrates the effect of salinity on the dry aerosol number
concentration (N p cm
-3 ). For the interpretation of this graph recall that for a
Chapter 6: HIGH WIND SPEED REGIME
419
experiment. Water temperature was 23°C. Reproduced from M rtensson et al. (2003) by
similar drop size spectrum at formation, the less saline droplets produced at
permission from American Geophysical Union.
å