Simulation of transport and removal processes of the Saharan dust

Journal Article · Fri Apr 01 04:00:00 EST 1983 · J. Clim. Appl. Meteorol.; (United States)

DOI:https://doi.org/10.1175/1520-0450(1983)022<0632:SOTARP>2.0.CO;2· OSTI ID:5968089

Lee, I Y

A planetary boundary layer (PBL) model has been modified to include a Saharan air layer containing the bulk of Saharan dust. The Saharan air layer is recognized as a deep mixed layer which extends up to 4-6 km during hot summer months and is characterized by high potential temperature and high dust concentration. Microphysical processes of particle coagulation and sedimentation have been coupled with dynamic processes to simulate the evolution of dust particles. In agreement with observations, simulations indicate that dust particles greater than 10 ..mu..m radius can be produced and transported in the Sahara air layer across the Atlantic Ocean, while dust concentrations in the PBL over the Atlantic Ocean are smaller by a factor of two or more than in the Saharan air layer. 15 references, 12 figures.

• Research Organization: Argonne National Lab., IL
• OSTI ID: 5968089
• Journal Information: J. Clim. Appl. Meteorol.; (United States), Journal Name: J. Clim. Appl. Meteorol.; (United States) Vol. 22:4; ISSN JCAME
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AFRICA
ARID LANDS
BOUNDARY LAYERS
DATA
DESERTS
DUSTS
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
INFORMATION
LAYERS
MASS TRANSFER
MATHEMATICAL MODELS
NUMERICAL DATA
PARTICLE SIZE
REMOVAL
SIMULATION
SIZE