Numerical study of mesoscale transport of air pollutants in sea-breeze circulations

Conference · Wed Dec 31 23:00:00 EST 1975

OSTI ID:7328175

Dieterle, D A; Tingle, A G

A numerical model is presented that was used to examine the development of mesoscale airborne pollutant distributions during the evolution of sea-breeze circulations. Observational studies which have examined the effect of lake/sea-breeze flows on mesoscale pollutant distributions were conducted for a Chicago lake breeze event and for sea-breeze flows over Long Island. The observational studies showed that lake/sea-breeze circulations have a pronounced influence on the mesoscale distribution of pollutants. The general effect appears to be that of material being transported aloft in the ascending air within the lake/sea-breeze front or convergence zone and lake or seaward by the upper return flow layer. Also, descending air in the return flow layer may recirculate material back into the inflow layer over a period of several hours, in a manner suggested by the helical trajectory observed with an optically-tracked tetroon balloon. (CH)

• Research Organization: Brookhaven National Lab., Upton, N.Y. (USA)
• DOE Contract Number: E(30-1)-16
• OSTI ID: 7328175
• Report Number(s): BNL-21415; CONF-761003-6
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AERODYNAMICS
AIR
AIR POLLUTION
BALLOONS
CHEMICAL EFFLUENTS
COASTAL REGIONS
DIFFUSION
ENVIRONMENTAL TRANSPORT
FLUID MECHANICS
FLUIDS
GASES
LAKES
MASS TRANSFER
MATHEMATICAL MODELS
MECHANICS
POLLUTION
REGIONAL ANALYSIS
SEAS
SURFACE AIR
SURFACE WATERS
TRAJECTORIES
WIND