Dienstag, 13. April 2021, 16:30 - 18:00 iCal

Vortrag von PhD Lucrezia TERZI (SCK CEN)

Global and seasonal analysis of 7Be concentrations and large-scale atmospheric circulation dynamics.

Online: imgw.univie.ac.at/live-seminar/



Vortrag im Rahmen des Meteorologisch-Geophysikalischen Kolloquiums.



Beryllium-7 (^7 Be) is a cosmogenic radionuclide formed through collision between highly energetic particles (cosmic rays) and atmospheric constituents such as oxygen and nitrogen. Once formed ^7 Be attaches to aerosol particles and is transported around the globe according to atmospheric circulation dynamics.

This work describes how beryllium-7 can be used to predict seasonal weather and shows that decadal change patterns such as weakening of general circulation and poleward movement of Hadley cell can also be monitored effectively through such cosmogenic radionuclides. These changes may be attributable to global warming.

Furthermore, ^7 Be is a good tracer for tropopause height changes which are presumably related to the rising of CO_2 concentrations which is also the main driver for extended summer periods.

Near-surface measurement of cosmogenic radionuclides can help address outstanding challenges in atmospheric circulation research by integrating a new perspective across the disciplines of environmental radiation monitoring and meteorology.

Zur Webseite der Veranstaltung


Institut für Meteorologie und Geophysik


Mag. Gassner Herta
Institut für Meteorologie und Geophysik