A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001)

Details A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001) A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001)

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh51a..01b&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SH51A-01

Other

7524 Magnetic Fields, 2111 Ejecta, Driver Gases, And Magnetic Clouds, 2139 Interplanetary Shocks, 2162 Solar Cycle Variations (7536), 2164 Solar Wind Plasma

Scientific paper

On March 24, 2001, the largest sun spot group in 10 years, consisting of three or more active regions (ARs) centered near AR 9393, emerged from behind the eastern limb of the Sun and began a 2-week passage across the visible hemisphere. During the same time, the Sun showed several other ARs so this period constituted a phase of unusually intense solar activity that continued almost 18 days beyond the disk passage of the largest sun spot group and included possibly the most energetic solar flare event in modern records (a > X20 flare in soft X-rays). We shall present an overview of the associated solar energetic particle events and an analysis of the thermodynamic characteristics of the shocks observed in the Earth's vicinity. The investigation includes cross-correlation analysis of interplanetary plasma and magnetic field observations at ACE (SWEPAM/MAG level-2 data) situated 250 Re upstream of Earth and at Wind (SWE/MFI data), which was ahead of Earth and executing a distant prograde orbit with large Y-coordinate. The interval under study bears a close resemblance to a similar active period during April 1979 (i.e., 2 solar cycles earlier) observed by the Helios 1/2 probes and Earth solar wind monitors (ISEE-3, IMP). The similarities and differences between the two intervals are examined further.

Affiliated with

Also associated with

No associations

Rating

A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001) 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 A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A comparative study of Solar-Heliospheric Observations during very active Sun intervals in the 21st and 23rd solar cycles (April 1979 and March-April, 2001) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1723776