Dienstag, 10. Mai 2022, 16:30 - 18:00 iCal

Vortrag von Franziska AEMISEGGER

(ETH Zürich)

 

"Addressing the cloud-circulation conundrum in the North Atlantic trades using water isotopes"

 

Vortrag im Rahmen des Meteorologisch-Geophysikalischen Kolloquiums.

Room 2B204, (Eberhard Clar Saal), Althanstr. 14, UZA 2, 1090 Vienna
Althanstr, 14, UZA 2, 1090 Wien

Lecture

---

Abstract: Shallow cumulus clouds, the most frequent cloud type on Earth, are at the heart of current uncertainties in future climate projections. These boundary layer clouds form due to a subtle interplay between the large-scale atmospheric circulation and small-scale physical processes embedded in the flow. In this presentation, I will show how stable water isotopes can be used as measurable tracers of this interplay and thus serve as a tool to link different flow regimes in the North Atlantic winter trades with mesoscale shallow cumulus cloud patterns. A case study using measurements from the Caribbean island Barbados will highlight the importance of midlatitude Rossby wave breaking for the formation of two frequently occurring mesoscale cloud patterns. Finally, a climatological perspective will emphasise the substantial interannual variability in the occurrence frequency of extratropical flow regimes in the North Atlantic trade wind region.

 

Zur Webseite der Veranstaltung

---

Veranstalter

Institut für Meteorologie und Geophysik

---

Kontakt

Andreas Plach/Herta Gassner
Institut für Meteorologie und Geophysik
53735
img-wien@univie.ac.at

Erstellt am Dienstag, 03. Mai 2022, 12:17
Letzte Änderung am Mittwoch, 11. Mai 2022, 10:45