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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Modeling the Ascent of Sounding Balloons: Derivation of the Vertic
 al Air Motion
DTSTART:20120907T103000
DTEND:20120907T113000
DTSTAMP:20260503T095431Z
UID:e7690a81037709ac559f185672f7b938df78ade23da464dda10c4a91
CATEGORIES:Conferences - Seminars
DESCRIPTION:A. Gallice\, Technisch-Wissenschaftlicher Transfer\, TWT GmbH
 \, Germany\nMeteorologists daily send sounding balloons worldwide in the a
 tmosphere in order to measure atmospheric properties in situ. Despite the 
 wide usage of these balloons\, their characteristics have been poorly stud
 ied so far\, in particular regarding their flight properties. In this talk
 \, I will present a model to describe the ascent of sounding balloons\, wh
 ich I developed at the Institute for Atmospheric and Climate Science (ETHZ
 ) during my Master's thesis. Contrary to previous models\, it accounts for
  both the variation of the drag coefficient with altitude and the heat imb
 alance between the balloon and the atmosphere. As an example of the potent
 ial applications of this model\, I will show on a particular case how the 
 air vertical velocity can be reconstructed by comparing the measured ascen
 t rate with the modeled one.
LOCATION:PPB 019
STATUS:CONFIRMED
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