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OK0NAG > SOLAR 01.08.10 12:11l 103 Lines 3772 Bytes #999 (0) @ EU
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#--------------------------------------------------------------------#
# MONTHLY REPORT ON THE INTERNATIONAL SUNSPOT NUMBER #
# from the SIDC (RWC-Belgium) #
#--------------------------------------------------------------------#
Provisional International monthly mean Sunspot Number for
July 2010 : 16.1 (sixteen point one)
Maximum : 30 on 24 // Minimum : 8 on 1, 2, 3, 7, 8
Provisional daily International Sunspot Numbers for July 2010 :
1.. 8 6.. 16 11.. 23 16.. 10 21.. 22 26.. 21 31.. 17
2.. 8 7.. 8 12.. 22 17.. 9 22.. 23 27.. 12
3.. 8 8.. 8 13.. 19 18.. 9 23.. 28 28.. 22
4.. 9 9.. 11 14.. 11 19.. 9 24.. 30 29.. 24
5.. 17 10.. 14 15.. 16 20.. 19 25.. 25 30.. 20
67 cooperating stations on August 1, 10 UT
Predictions of the monthly smoothed Sunspot Number using the last
provisional value, calculated for January 2010 : 9.3 (+-5%)
SM CM SM CM SM CM
2010 Feb 11 12 2010 Aug 20 37 2011 Feb 34 64
Mar 12 16 Sep 22 42 Mar 37 66
Apr 13 19 Oct 24 47 Apr 40 68
May 15 23 Nov 26 52 May 43 71
Jun 16 27 Dec 28 56 Jun 46 73
Jul 18 32 2011 Jan 31 60 Jul 50 75
SM : SIDC classical method : based on an interpolation of Waldmeier's
standard curves; the estimated error ranges from 7% (first month) to
35% (last month)
CM : Combined method : the combined method is a regression technique
coupling a dynamo-based estimator with Waldmeier's idea of standard
curves, due to K. Denkmayr.
ref. : K. Denkmayr, P. Cugnon, 1997 : "About Sunspot Number Medium-Term
Predictions", in "Solar-Terrestrial Prediction Workshop V", eds.
G. Heckman et al., Hiraiso Solar Terrestrial Research Center, Japan, 103
#--------------------------------------------------------------------#
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