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contributor authorBielli, Soline
contributor authorRoux, Frank
date accessioned2017-06-09T16:12:23Z
date available2017-06-09T16:12:23Z
date copyright1999/06/01
date issued1999
identifier issn0027-0644
identifier otherams-63295.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4204282
description abstractDoppler radar?derived fields of wind and reflectivity, retrieved temperature perturbations, estimated water vapor, and cloud water contents are used to initialize a nonhydrostatic cloud-resolving model. Airborne Doppler data collected in a tropical mesoscale convective system on 9 February 1993 during the Tropical Ocean Global Atmosphere Coupled Ocean?Atmosphere Response Experiment are prepared for this purpose. Different numerical experiments are conducted to verify the reliability of the approach and to determine the most important parameters leading to the most realistic simulations possible. The obtained results show that the numerical model can be initialized with two-dimensional wind and reflectivity fields describing a well-developed convective circulation. A major conclusion is that, apart from the horizontal and vertical wind, the most important parameter in the initial field is humidity. Although a relatively crude thermodynamic and microphysical description was sufficient, a complete description of the saturated/unsaturated conditions is essential to obtain simulations matching the observed characteristics. Finally, consequences of the results for the understanding of the 9 February 1993 mesoscale convective system and future applications of this technique are discussed.
publisherAmerican Meteorological Society
titleInitialization of a Cloud-Resolving Model with Airborne Doppler Radar Observations of an Oceanic Tropical Convective System
typeJournal Paper
journal volume127
journal issue6
journal titleMonthly Weather Review
identifier doi10.1175/1520-0493(1999)127<1038:IOACRM>2.0.CO;2
journal fristpage1038
journal lastpage1055
treeMonthly Weather Review:;1999:;volume( 127 ):;issue: 006
contenttypeFulltext


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