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contributor authorIntrieri, J. M.
contributor authorBedard, A. J.
contributor authorHardesty, R. M.
date accessioned2017-06-09T14:29:42Z
date available2017-06-09T14:29:42Z
date copyright1990/05/01
date issued1989
identifier issn0022-4928
identifier otherams-20313.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4156528
description abstractThree cases of colliding outflow boundaries are examined using data collected from the NOAA Doppler lidar and a meteorological tower during the summer of 1986 near Boulder, Colorado. The data are unique because the lidar and the 300 m tower were colocated, providing measurements of both kinematic and thermodynamic properties. Lidar data reveal small-scale vortex roll instabilities within the leading edge of the outflow. Observations of the post-collision interactions showed that the warmer of the two outflows was deflected upward by the colder outflow to heights of 2 km. In all cases, this forced mechanical lifting was sufficient to produce convection. A simple model of two colliding density currents also suggests that deeper outflows are more efficient in initiating convection.
publisherAmerican Meteorological Society
titleDetails of Colliding Thunderstorm Outflows as Observed by Doppler Lidar
typeJournal Paper
journal volume47
journal issue9
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(1990)047<1081:DOCTOA>2.0.CO;2
journal fristpage1081
journal lastpage1099
treeJournal of the Atmospheric Sciences:;1989:;Volume( 047 ):;issue: 009
contenttypeFulltext


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