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Last Updated on Thursday, 06 May 2010 20:50
Published on Wednesday, 23 February 2005 00:00

The solar cycle, eruptions from the Sun and their consequences for Earth ROYAL ASTRONOMICAL SOCIETY'S LONDON DISCUSSION MEETING ON MARCH 9TH

The Sun is far from being a remote, unchanging source of light and warmth. Rather, we live within the outer atmosphere of a variable star. The one-day discussion meeting on 9th March, in the Royal Astronomical Society's regular monthly programme, focuses on the results of recent research into the energy flowing from the Sun to the Earth and the consequences for our planet of the Sun's variability.

Media representatives are welcome to attend. The meeting is in the Geological Society Lecture Theatre at Burlington House, Piccadilly, London, W1.

Meeting organisers: Dr Andy Breen (University of Wales, Aberystwyth) This email address is being protected from spambots. You need JavaScript enabled to view it. and Dr Mike Hapgood (Rutherford-Appleton Laboratory)

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An outline of the programme is given below. 

For more information, contact Dr Andy Breen Solar Physics Group, Physics Dept., University of Wales, Aberystwyth Tel. (+44) (0)1970 622814, Fax. (+44) (0)1970 622826 email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Recent discoveries have led to new insights into the relationship between the Sun and the Earth and to a new appreciation of the effects of solar activity on the Earth and human activities. This meeting is taking place  just after the peak in the 11-year solar activity cycle and draws together the results of recent studies of solar activity, such as solar flares, coronal mass ejections, the 11-year solar cycle and even longer-term variations. The speakers include many of the leading figures in the field of solar-terrestrial physics, as well as younger researchers, presenting results that trace the effects of solar activity from their origins on the Sun, through interplanetary space and their interactions with the Earth.

The highlights of the meeting include reviews of the most recent investigations into the link between solar flares and coronal mass ejections and their interaction with the Earth's magnetic field and upper atmosphere, as well as the effects of solar activity on man- made systems (such as power grids and spacecraft) and its role in climate change. Prof. Mike Lockwood will talk about important investigation into the effects of long-period solar changes on climate and the implications for interpreting climate change 


10.00 "Solar flares and their relationship to coronal mass ejections" Lyndsey Fletcher (Glasgow University)

10.20 "Nanoscale eruptive events" Robert von Fay-Siebenburgen (Sheffield University)

10.30 "Coronal dimming and coronal mass ejection onsets" Richard Harrison (Rutherford-Appleton Laboratory)

 10.40 "Coronal mass ejection initiation, development and interplanetary propagation"

Rainer Schwenn (Max-Planck Institut fuer Aeronomie, Germany)

11.10 "Sigmoidal Solar Features and their Implications for coronal mass ejection prediction" Alexi Glover (Mullard Space Science Lab., University College London)

11.20 "The centenary of solar-terrestrial physics?" Henry Rishbeth (Southampton University)

11.40 "On the Impact in the Ionosphere of Solar Variability: SuperDARN observations" Mark Lester (University of Leicester)

 12.00 "Solar wind - magnetosphere coupling associated with Interplanetary CMEs: Lessons from global modelling" Peter Cargill (Imperial College of Science and Technology, London) 

1230 Lunch and poster viewing

13.30 "Magnetosphere-Ionosphere coupling under disturbed conditions: interpreting auroral signatures from above and below" Betty Lanchester (Southampton University)

14.00 "Magnetosphere - Ionosphere - Thermosphere coupling: understanding the building blocks in thermospheric reservoir heating." R. Balthazor (Sheffield University)

1410 "Stirring up the thermosphere: ionosphere thermosphere coupling" Alan Aylward & George Millward (University College London) 30 minute talk
14.40 "Geomagnetic Induced Currents in Power Grids of Northern Europe: Terrestrial Consequences of Magnetic Storms in 2000" Alan Thomson (British Geological Survey) 

14.50 "Relativistic Electrons, 1989 - 2000: a changing threat to spacecraft in the magnetosphere"

Gordon Wrenn (Space Department, Defence Research Agency, Farnborough)

15.00 "Long term variations in the coronal magnetic field and its implications for mankind's environment and systems"

Mike Lockwood (Rutherford-Appleton Laboratory)

1530 End of talks.


Issued by:

Dr Jacqueline Mitton, RAS Press Officer
Office & home phone: Cambridge ((0)1223) 564914
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