Buoyancy traditionally is taught in terms of Archimedean principles, using the notion of a hydrostatic base state and perturbations from that. The problem with this viewpoint of buoyancy as a quantity relative to some base state is that it thereby depends on what is an arbitrary choice of the base state, an unacceptable physical concept. Parcel theory is revisited and it is shown that neglecting perturbation pressure is the source of this problem. When the perturbation pressure is combined with the "thermal" buoyancy, to produce a "true" buoyancy, the acceleration no longer depends on the base state. Some thought experiments are used to illustrate the problem and its solution. gez. Prof.

Diese Veranstaltung ist Teil der Reihe Karlsruher Meteorologisches Kolloquium

Referent/in
Dr. Charles A. Doswell III

Doswell Scientific Consulting, USA

Veranstalter
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Karlsruher Institut für Technologie (KIT)
Kreuzeckbahnstraße 19
82467 Garmisch-Partenkirchen
E-Mail: hape schmid ∂does-not-exist.imk kit edu

Zielgruppe
Wissenschaftliche Mitarbeitende