Modeling the Ascent of Sounding Balloons: Derivation of the Vertical Air Motion
Event details
| Date | 07.09.2012 |
| Hour | 10:30 › 11:30 |
| Speaker | A. Gallice, Technisch-Wissenschaftlicher Transfer, TWT GmbH, Germany |
| Location |
PPB 019
|
| Category | Conferences - Seminars |
Meteorologists daily send sounding balloons worldwide in the atmosphere in order to measure atmospheric properties in situ. Despite the wide usage of these balloons, their characteristics have been poorly studied so far, in particular regarding their flight properties. In this talk, I will present a model to describe the ascent of sounding balloons, which 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 imbalance between the balloon and the atmosphere. As an example of the potential applications of this model, I will show on a particular case how the air vertical velocity can be reconstructed by comparing the measured ascent rate with the modeled one.
Practical information
- Informed public
- Free
Organizer
- CRPP
Contact
- Prof. Paolo Ricci