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contributor authorPetterssen, Sverre
contributor authorDunn, Gordon E.
contributor authorMeans, L. L.
date accessioned2017-06-09T14:11:08Z
date available2017-06-09T14:11:08Z
date copyright1955/02/01
date issued1955
identifier issn0095-9634
identifier otherams-14135.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4149663
description abstractAn experiment, aimed at forecasting the formation and intensification of extra-tropical cyclones, was conducted from 4 January 1954 to 20 March 1954. The working hypothesis to be tested was formulated as follows: cyclonic development at sea level occurs when and where an area of positive vorticity advection in the upper troposphere becomes super-imposed upon a frontal zone at sea level. The experiment, which was conducted in connection with the routine operation of the U. S. Weather Bureau's District Forecast Center in Chicago, resulted in 97 verifiable forecasts. The verification indicated that the working hypothesis is useful.
publisherAmerican Meteorological Society
titleREPORT OF AN EXPERIMENT IN FORECASTING OF CYCLONE DEVELOPMENT
typeJournal Paper
journal volume12
journal issue1
journal titleJournal of Meteorology
identifier doi10.1175/1520-0469(1955)012<0058:ROAEIF>2.0.CO;2
journal fristpage58
journal lastpage67
treeJournal of Meteorology:;1955:;volume( 012 ):;issue: 001
contenttypeFulltext


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