Accession Number:

ADA629809

Title:

Source Strength and Scattering Properties of Organic Marine Aerosols

Descriptive Note:

Corporate Author:

PRINCETON UNIV NJ DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1999-09-20

Pagination or Media Count:

6.0

Abstract:

LONG-TERM GOAL. My long term goal is to quantify the role played by sea salt in radiative scattering in the marine environment. This project studies the number of aerosol particles produced from sea salt under different marine conditions. Studying the chemical composition of those particles provides important information about their behavior in the atmosphere. OBJECTIVES. I would like to see whether the number of sea salt particles observed in field projects can be predicted by current parameterizations of particle flux based on wind speed. I will test whether other parameters are also important determinants of sea salt particle concentrations. I also want to establish what the compositions of sea salt particles are. To this end, I will need to design and build an accurate instrument for measuring sea salt aerosol. APPROACH. We have completed analyses of the chemical composition of aerosol samples collected as part of the Aerosol Characterization Experiment ACE 2 in Tenerife in 1997. We have also studied the role of sea salt particles in layers other than the boundary layer by quantifying the rate of entrainment of particles to and from the marine boundary layer. We have designed and built a new salt particle counter to make direct measurements of sea salt more accurately.

Subject Categories:

  • Meteorology
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE