Working Group meeting
"Observations and Models of the Solar Cycle"
14-18 March, 2005, ISSI, Bern
Participants
Pavel Ambroz (Astronomical Institute, Czech Republic)
Rainer Arlt ((Astrophysical Institute Potsdam, Germany)
Elena Benevolenskaya (Stanford/Pulkovo, USA/Russia)
Svetlana Berdyugina (Institute of Astronomy, ETH, Switzerland)
Axel Brandenburg (NORDITA, Denmark) - March 15-17
Sacha Brun (CEA, France)
Friedrich Busse (University of Bayreuth, Germany)
Mausumi Dikpati (High Altitude Observatory, USA)
Dominique Fluri (Institute of Astronomy, ETH, Switzerland)
Peter Gilman (High Altitude Observatory, USA)
Alexander Kosovichev (Stanford University, USA)
Mathieu Ossendrijver (Kiepenheuer-Inst. f. Sonnenphysik, Germany)
Markus Roth (Kiepenheuer-Inst. f. Sonnenphysik, Germany)
Guenther Ruediger (Astrophysical Institute Potsdam, Germany)
14 March, Monday
11:00 am - 12:30 pm: Introduction - meeting agenda
2:00 pm - 5:00 pm: Observational characteristics of
the solar cycle: non-axisymmetrical components, polar field reversals,
short-term variations, coronal effects
E.Benevolenskaya,
Observational characteristics of solar cycle: Part I
S.Berdyugina,
Non-axisymmetric
magnetic fields and flip-flops
15 March, Tuesday
9:00 am - 12:30 pm: Observational characteristics of
the solar cycle: large-scale flow and magnetic field dynamics,
torsional
oscillations, helioseismology, differential
rotation, meridional
circulation.
P. Ambroz, Large-scale
solar
magnetic field dynamics
A.Kosovichev Review
of
Helioseismology results
M.Roth, Effects of
Large-Scale Flows on Solar Oscillations
2:00 pm - 5:00 pm: Solar dynamo: mean-field
theories
G.Ruediger, Solar dynamo &
differential rotation: the meridional flow connection
M.Dikpati, A
Global-Scale
Solar Dynamo
A.Brandenburg,
Magnetic
helicity and mean field models
16 March, Wednesday
9:00 am - 12:30 pm: Solar dynamo: interface or
distributed dynamo?
A. Brandenburg,
The case for
a distributed dynamo shaped by near-surface shear
P.Gilman,
Issues related to
dynamo, meridional circulation and diffusion at tachocline interface
2:00 pm - 5:00 pm: Tachocline structure,
dynamics and stability
R. Arlt
P.Gilman,
Global MHD
Instabilities of the Solar Tachocline
S.
Brun,
Time-dependent 3D-MHD models of the Solar Tachocline
P.Gilman, Jets in the Solar Tachocline as Diagnostics of Global MHD
Pocesses There
17 March, Thursday
9:00 am - 12:30 pm: Solar dynamo: alpha-effect,
helicity, direct numerical simulations
F. Busse
P. Gilman, Concentration of Toroidal Magnetic Field in the Solar
Tachocline by η-Quenching
M.Ossendrijver)
2:00 pm - 5:00 pm: Solar and stellar activity
M.Ossendrijver,
The magnetic
layer in solar-type stars
D.
Fluri,
Interpretation of solar and stellar activity in terms of dynamo modes
18 March, Friday
9:00 am - 12:30 pm: What needs to be done?
- analysis of synoptic data
- helioseismology
- new observations
- mean-field theories
- direct numerical simulations