|
Detailed Reference Information |
Erickson, D.J. and Duce, R.A. (1988). On the global flux of atmospheric sea salt. Journal of Geophysical Research 93: doi: 10.1029/88JC03063. issn: 0148-0227. |
|
The calculated global wet and dry deposition fields of atmospheric sea-salt to the ocean surface, obtained using a sea-salt mass size distribution appropriate for an elevation of 15 m above mean sea level (AMSL), are examined on a monthly basis with 5¿¿5¿ latitude-longitude spatial resolution. A monthly Gaussian frequency distribution of wind speeds is computed for each 5¿¿5¿ area. This global wind speed climatology is coupled with equations relating atmospheric sea-salt removal processes to wind speed. This allows us to estimate various global properties of atmospheric sea salt, such as the mass median radius of a log-normal sea-salt mass distribution, the deposition velocities of both wet and dry atmospheric sea-salt deposition and the global deposition field of atmospheric sea-salt. The global dry depositional flux of atmospheric sea salt through a plane 15 m AMSL is 0.8--2.2¿1016 g yr-1. The global wet depositional flux of atmospheric sea-salt is 0.15--0.45¿1016 g yr-1. The global flux of atmospheric sea salt is thus approximately 1--3¿1016 g yr-1. The largest atmospheric sea-salt deposition is found in the high-latitude regions of both hemispheres. While the dry deposition of atmospheric sea salt dominates wet deposition removal on a global scale, over areas associated with the Intertropical Convergence Zone atmospheric sea salt is removed with comparable efficiency by wet and dry deposition. ¿ Americal Geophysical Union 1988 |
|
|
|
BACKGROUND DATA FILES |
|
|
Abstract |
|
|
|
|
|
Keywords
Atmospheric Composition and Structure, Aerosols and particles, Atmospheric Composition and Structure, Geochemical cycles, Atmospheric Composition and Structure, Troposphere—composition and chemistry, Oceanography, Physical, Air/sea interactions |
|
Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
|
|
|