Seminars

Lecturer: Joan Feynman, NASA JPL
Date: 2012-10-23 10:30
Place: Aniara

The Centennial Gleissberg Cycle or why you haven't seen many aurora at Kiruna in the last couple of years

Joan Feynman
NASA JPL

Over the past few years the Sun and solar wind have exhibited solar cycle behavior that was considerably different from the picture that had been developed from space observations taken before 2006. For example, interplanetary field and the solar polar field at solar minimum was much weaker than had been previously seen. It was suggested that the Sun was entering a Maunder-type Minimum. I will argue that the anomalous behavior is a minimum of the Centennial Gleissberg Cycle(CGC) and discuss the role of the CGC in geomagnetic activity and climate change.

Created 2012-08-21 13:35:02 by Uwe Raffalski
Last changed 2012-10-22 15:24:48 by Uwe Raffalski