Aerosol nucleation spikes in the planetary boundary layer

Details Aerosol nucleation spikes in the planetary boundary layer Aerosol nucleation spikes in the planetary boundary layer

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010acpd...1026931c&link_type=abstract

Atmospheric Chemistry and Physics Discussions, Volume 10, Issue 11, 2010, pp.26931-26959

Physics

Scientific paper

Photochemically driven nucleation bursts, which typically occur in a few hours after sunrise, often produce strong aerosol number concentration (ANC) fluctuations. The causes of such ANC spikes were investigated using a detailed aerosol model running in the parcel mode. Two potential mechanisms for the ANC spikes are proposed and simulated. The blocking of actinic flux by scattered clouds can significantly influence new particle production, but this does not cause strong fluctuations in the number of aerosols within sizes greater than the detection limit of our measurements. A more plausible mechanism is the turbulence eddy effect. Strong aerosol nucleation may occur in both updrafts and downdrafts, while the cloud formation at the boundary layer top strongly reduces the number of aerosols. As the number of aerosols is sensitive to turbulence eddy and cloud formation properties, a changing turbulence condition would result in large fluctuations in the evolution of ANC similar to that observed at the surface.

Affiliated with

Also associated with

No associations

Rating

Aerosol nucleation spikes in the planetary boundary layer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Aerosol nucleation spikes in the planetary boundary layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aerosol nucleation spikes in the planetary boundary layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1157569