Sulfur dry deposition over the western North Atlantic: the role of coarse aerosol particles

H. Sievering; J. Boatman; M. Luria; C. C. Van Valin

doi:10.3402/tellusb.v41i3.15089

Sulfur dry deposition over the western North Atlantic: the role of coarse aerosol particles

Tellus B: Chemical and Physical Meteorology

Volume 41 (1989): Issue 3

By: H. Sievering, J. Boatman, M. Luria and C. C. Van Valin

Open Access

|Jan 1989

Abstract

A number of investigators have observed substantial amounts of coarse fraction (D > 1 μm) non-sea-salt or excess sulfate (XSO₄) to prevail in marine boundary layer (MBL) aerosol. Its dry deposition velocity may be 1 cm s^-1 or more with low uncertainty relative to the dry deposition velocity of fine-fraction XSO₄. Estimates of total sulfur dry deposition using MBL ambient air data over the western North Atlantic Ocean are presented. It is shown, at distances of hundreds to 1000 km downwind from sulfur source regions, that sulfur dry removal from the western North Atlantic MBL is dominated by the dry deposition of XSO₄ rather than that of SO₂.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusb.v41i3.15089 | Journal eISSN: 1600-0889

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Language: English

Page range: 338 - 343

Submitted on: Nov 30, 1987

Accepted on: Jul 27, 1988

Published on: Jan 1, 1989

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1989 H. Sievering, J. Boatman, M. Luria, C. C. Van Valin, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 41 (1989): Issue 3