The onset of sunspot cycle 24 and galactic cosmic ray modulation

Details The onset of sunspot cycle 24 and galactic cosmic ray modulation The onset of sunspot cycle 24 and galactic cosmic ray modulation

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..48...61a&link_type=abstract

Advances in Space Research, Volume 48, Issue 1, p. 61-64.

Physics

5

Scientific paper

The annual mean sunspot number (SSN) has a minimum value in 2008, while the monthly mean SSN has a value of zero in August 2009. The galactic cosmic ray modulation for cycle 24 began at earth orbit in January 2010. We study the onset characteristics of the new modulation cycle using data from the global network of neutron monitors. They respond to time variations in different segments of the galactic cosmic ray rigidity spectrum. The corresponding temporal variations in the interplanetary magnetic field intensity (B) and solar wind velocity (V) as well as the tilt angle of the heliospheric current sheet are also studied. There is a lag of 3 months between a large, sharp increase of the tilt angle of the heliospheric current sheet and the onset of modulation. Some neutron monitors are undergoing long-term drifts of unknown origin.

Affiliated with

Also associated with

No associations

Rating

The onset of sunspot cycle 24 and galactic cosmic ray modulation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The onset of sunspot cycle 24 and galactic cosmic ray modulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The onset of sunspot cycle 24 and galactic cosmic ray modulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1849351