Show simple item record

contributor authorDabberdt, Walter F.
date accessioned2017-06-09T14:01:18Z
date available2017-06-09T14:01:18Z
date copyright1986/08/01
date issued1986
identifier issn0733-3021
identifier otherams-11037.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4146221
description abstractA series of ten atmospheric tracer experiments provided 62 hours of overwater atmospheric dispersion data. Sulfur hexafluoride (SF6) was released as the tracer gas at a height of 13 m from a ship positioned about 7 km off the central California coast in the vicinity of Pismo Beach. Surface and upper air meteorological measurements were made at the release point and near the shoreline. Horizontal crosswind tracer concentration profiles were obtained at the shoreline, both at the surface and multiple levels aloft through the mixed layer. Tracer data were analyzed to determine the lateral diffusion parameter σy for hourly periods as the best fit to a Gaussian distribution. The vertical diffusion parameter σz was determined from the vertical profile of the hourly crosswind-integrated tracer concentration. Four classification schemes of atmospheric stability were intercompared and showed wide variation in their estimates. The lateral diffusion measurements are reasonably well gratified by three of the four stability classification methods, while the vertical diffusion measurements are not. Four diffusion-parameterization methods were evaluated at the shoreline. Two of the four methods provided consistently good estimates of σy. The vertical diffusion estimates were poor with all methods.
publisherAmerican Meteorological Society
titleOverwater Atmospheric Diffusion: Measurements and Parameterization
typeJournal Paper
journal volume25
journal issue8
journal titleJournal of Climate and Applied Meteorology
identifier doi10.1175/1520-0450(1986)025<1160:OADMAP>2.0.CO;2
journal fristpage1160
journal lastpage1172
treeJournal of Climate and Applied Meteorology:;1986:;Volume( 025 ):;Issue: 008
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record