Solen: från kärnfusion till klimatförändring

 

bild: Kaj Lindgren

 

The Sun: From Nuclear Fusion to Climate Change

Öppen föreläsning med professor Roger-Maurice Bonnet, ISSI, Bern, Schweiz, och CNRS, Frankrike

Tisdag 15 februari 2012, kl. 18.00 – 19.00

Kungliga Vetenskapsakademien, Beijersalen, Lilla Frescativägen 4A, Stockholm

Föreläsningen är kostnadsfri och öppen för allmänheten. Ingen föranmälan krävs.

bild: KVA/Guy Lebègue
Professor Roger-Maurice Bonnet

 

Space techniques have allowed a continuous Survey of the Sun, its total and spectral irradiance as well as its magnetic activity. We now know where inside the Sun does solar variability finds its sources. The solar sunspot cycle is observed since Galileo back in 1610, but only now are we able to accurately quantify and monitor its effects on the Earth, in particular its climate.

Forecasting climate evolution and assessing anthropogenic forcing on it require a continuous monitoring of solar activity: the total and spectral irradiance and all effects associated with the Sun’s magnetic field, what is called ”space weather”.

Professor Roger-Maurice Bonnet is a solar physicist, director of research at Centre national de la recherche scientifique, France, and since 2003 Executive Director of International Space Science Institute in Bern. He is a foreign member of the Royal Swedish Academy of Sciences.

Professor Bonnet has written more than 150 scientific articles and books, among which ”Surviving 1000 Centuries. Can we do it?”.

 

[Bilder: Kaj Lindgren & KVA/Guy Lebègue ]

SL

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