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contributor authorEbert, Elizabeth E.
contributor authorHolland, Greg J.
date accessioned2017-06-09T16:08:58Z
date available2017-06-09T16:08:58Z
date copyright1992/10/01
date issued1992
identifier issn0027-0644
identifier otherams-62025.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4202872
description abstractA detailed analysis is made of the development of a region of cold cloud-top temperatures in Tropical Cyclone Hilda (1990) in the Coral Sea off eastern Australia. Observed temperatures of approximately 173 K (?100°C) from two independent satellite sources indicate that the convective turrets penetrated well into the stratosphere to an estimated height of around 19.2 km. The analytical parcel model of Schlesinger is used, together with available observations from the cyclone vicinity, to estimate the convective updrafts required to produce the observed stratosphere penetration. Under realistic assumptions of entrainment and hydrometeor drag, an updraft speed of between 15 and 38 m s?1 at tropopause level is required to provide the observed stratospheric penetration. Independent calculations using observed anvil expansion and environmental CAPE (convective available potential energy) support these updraft findings.
publisherAmerican Meteorological Society
titleObservations of Record Cold Cloud-Top Temperatures in Tropical Cyclone Hilda (1990)
typeJournal Paper
journal volume120
journal issue10
journal titleMonthly Weather Review
identifier doi10.1175/1520-0493(1992)120<2240:OORCCT>2.0.CO;2
journal fristpage2240
journal lastpage2251
treeMonthly Weather Review:;1992:;volume( 120 ):;issue: 010
contenttypeFulltext


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