Atmospheric studies in complex terrain: a planning guide for future studies

Orgill, M.M.

doi:10.2172/6306291

Cited by 6 publications

(1 citation statement)

References 197 publications

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“…The remaining sections of this work are devoted to a discussion of the reasons for the rapid transport of tracer material to the surface. The problem of dispersion and tran sport near coastlines and large lakes has received considerable attention in the literature (See, e.g., Lyons, 1975;Businger, 1975;Mi sra, 1980;Raynor et a/., 1980Orgill , 1981. The purpose of this section is to examine the results from prior observations applicable to the present field experiment, since few, if any , studies have been made of convective activity over the ocean at night.…”

Section: Description Of Field Experimentsmentioning

confidence: 94%

Convective Downmixing of Plumes in a Coastal Environment

McRae¹,

Shair²,

Seinfeld³

1981

J. Appl. Meteor.

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This paper describes the results of an atmospheric tracer study in which sulfur hexafluoride (SF 8 ) was used to investigate the transport and dispersion of effluent from a power plant located in a coastal environment. The field study demonstrated that material emitted into an elevated stable layer at night can be transported out over the ocean, fumigated to the surface, and then be returned at ground level by the sea breeze on the next day. At night when cool stable air from the land encounters the warmer ocean convective mixing erodes the stable layer forming an internal boundary layer. When the growing boundary layer encounters a n elevated plume the pollutant material, eotrained at the top of the mixed layer. can be rapidly transported in -20 min to the surface. Various expressions for the characteristic downmixing time (X = Z 1 1w.) are developed utilizing the gradient Richardson number, the Monin-Obukhov length and turbulence intensities. Calculations using these expressions and the field data are compared with similar studies of convective mixing over the land .

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Section: Description Of Field Experimentsmentioning

confidence: 94%