Ilya G. UsoskinSodankyl¨a Geophysic

Ilya G. Usoskin
Sodankyl¨a Geophysical Observatory (Oulu unit), FIN-90014 University of Oulu, Finland
Sami K. Solanki† and Manfred Sch¨ussler
Max-Planck Institut f¨ur Aeronomie, Katlenburg-Lindau, Germany
Kalevi Mursula and Katja Alanko
Department of Physical Sciences, University of Oulu, Finland
(Dated: February 2, 2008)
The extension of the sunspot number series backward in time is of considerable interest for dynamo theory, solar, stellar, and climate research. We have used records of the 10Be concentration in polar
ice to reconstruct the average sunspot activity level for the period between the year 850 to the present. Our method uses physical models for processes connecting the 10Be concentration with the sunspot number. The reconstruction shows reliably that the period of high solar activity during the last 60 years is unique throughout the past 1150 years. This nearly triples the time interval for which such a statement could be made previously.

ผลลัพธ์ (อังกฤษ) 2:

Ilya G. Usoskin
Sodankylä Geophysical Observatory (Oulu UNIT), FIN-90014 University of Oulu, Finland
Sami K. Solanki † Sch¨ussler and Manfred
Max-Planck Institut für Aeronomie, Katlenburg-Lindau, Germany
Kalevi Mursula and Katja. Alanko
Department of Physical Sciences, University of Oulu, Finland
(Dated: February 2, 2008)
The Extension of the sunspot Number Series backward in time is of considerable interest for Dynamo Theory, Solar, stellar, and Climate Research. We have used records of the 10Be concentration in Polar
Ice to Reconstruct the average sunspot Activity level for the period between the year 850 to the present. Our method uses physical models for processes connecting the 10Be concentration with the sunspot number. The reconstruction shows reliably that the period of high solar activity during the last 60 years is unique throughout the past 1150 years. This nearly triples the time interval for which such a statement could be made ​​previously.

ผลลัพธ์ (อังกฤษ) 3:

Ilya G. Usoskin
Sodankyl ¨ a Geophysical Observatory (Oulu unit), FIN-90014 University, of Oulu Finland
Sami K. Solanki video. And Manfred Sch ¨ ussler
Max-Planck Institut f ¨, ur Aeronomie Katlenburg-Lindau Germany
Kalevi, Mursula and Katja Alanko
Department. Of Sciences Physical, of, University Oulu Finland
(Dated: February, 2 2008)
.The extension of the sunspot number series backward in time is of considerable interest for dynamo theory solar stellar,,,, And climate research. We have used records of the 10Be concentration in polar
ice to reconstruct the average sunspot activity. Level for the period between the year 850 to the present.Our method uses physical models for processes connecting the 10Be concentration with the sunspot number. The reconstruction. Shows reliably that the period of high solar activity during the last 60 years is unique throughout the past 1150, years. This nearly triples the time interval for which such a statement could be made previously.
.