[Ips-ssn-predictions] ISES Observed and Predicted Solar Indices
Regional Warning Centre
rwc at ips.gov.au
Tue Mar 1 21:49:30 EST 2011
IPS OBSERVED AND PREDICTED SOLAR INDICES FOR CYCLE 24
Prepared by IPS Radio and Space Services
Issued on Mar 01 2011
------------------------ SMOOTHED SUNSPOT NUMBER ---------------------------
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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2000 113.0 116.9 120.0 120.9 119.0 118.8 119.8 118.7 116.3 114.5 112.7 112.1
2001 108.7 104.0 104.8 107.5 108.6 109.8 111.7 113.6 114.1 114.0 115.5 114.6
2002 113.5 114.6 113.3 110.5 108.8 106.2 102.7 98.7 94.6 90.5 85.3 82.1
2003 81.0 78.6 74.2 70.4 67.9 65.3 62.1 60.3 59.8 58.4 57.0 55.0
2004 52.1 49.4 47.2 45.6 43.9 41.7 40.2 39.3 37.6 35.9 35.4 35.2
2005 34.6 34.0 33.6 31.7 28.9 28.8 29.1 27.5 25.9 25.6 25.0 23.0
2006 20.8 18.7 17.4 17.1 17.4 16.4 15.3 15.6 15.6 14.2 12.7 12.1
2007 12.0 11.6 10.8 9.9 8.7 7.7 7.0 6.1 5.9 6.1 5.7 5.0
2008 4.2 3.6 3.3 3.3 3.5 3.2 2.7 2.6 2.2 1.8 1.7 1.7
2009 1.8 1.9 2.0 2.2 2.3 2.7 3.6 4.8 6.1 7.0 7.5 8.2
2010 9.2 10.6 12.3 13.9 15.4 16.3 16.7 17.4 18.9e 21.4e 24.4e 27.4e
2011 30.2e 33.0e 35.6e 38.2e 41.1e 44.6e 48.3e 51.5e 54.0 56.5 58.7 60.4
2012 61.9 63.6 65.5 67.7 69.7 71.6 73.6 75.6 77.8 80.0 81.8 83.4
2013 84.8 86.7 88.9 90.2 89.2 87.7 86.2 85.0 84.0 82.9 81.6 80.3
2014 79.2 77.8 76.2 75.0 74.3 73.7 72.7 71.4 70.6 69.9 68.5 66.7
2015 65.1 63.5 62.0 60.4 59.0 57.7 56.2 54.8 53.5 52.0 50.2 48.5
2016 46.7 45.2 44.1 43.1 42.0 41.0 39.8 38.6 37.5 36.3 35.3 34.5
2017 33.5 32.3 30.9 29.8 28.8 27.7 26.7 25.6 24.4 23.3 22.3 21.3
2018 20.5 19.6 18.7 17.8 17.1 16.5 15.9 15.4 14.8 14.3 13.7 12.9
2019 12.1 11.3 10.6 9.9 9.2 8.4 7.8 7.4 7.1 6.7 6.3 5.9
============================================================================
----------------- EQUIVALENT 10.7 CM SOLAR RADIO FLUX ---------------------
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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2000 162.2 166.2 169.4 170.3 168.3 168.1 169.2 168.0 165.6 163.7 161.9 161.2
2001 157.8 153.0 153.7 156.6 157.7 158.9 160.8 162.8 163.3 163.2 164.8 163.9
2002 162.7 163.9 162.5 159.6 157.9 155.2 151.6 147.6 143.4 139.3 134.1 131.0
2003 129.9 127.6 123.4 119.7 117.4 114.9 112.0 110.4 109.9 108.7 107.4 105.6
2004 103.2 100.8 98.9 97.6 96.2 94.4 93.3 92.5 91.2 89.9 89.5 89.4
2005 88.9 88.4 88.1 86.7 84.7 84.6 84.8 83.6 82.5 82.3 81.9 80.5
2006 79.0 77.6 76.8 76.7 76.8 76.2 75.5 75.7 75.7 74.8 73.9 73.6
2007 73.5 73.3 72.8 72.3 71.6 71.0 70.6 70.1 70.1 70.1 69.9 69.5
2008 69.1 68.8 68.6 68.7 68.7 68.6 68.4 68.3 68.1 67.9 67.9 67.8
2009 67.9 67.9 68.0 68.1 68.1 68.4 68.8 69.4 70.2 70.6 70.9 71.3
2010 71.9 72.7 73.6 74.6 75.6 76.1 76.4 76.8 77.8e 79.4e 81.4e 83.5e
2011 85.6e 87.7e 89.7e 91.7e 94.0e 96.8e 99.9e102.6e104.8 107.0 108.9 110.5
2012 111.8 113.4 115.1 117.2 119.1 120.9 122.8 124.7 126.8 128.9 130.7 132.3
2013 133.6 135.5 137.7 139.0 138.0 136.5 135.0 133.8 132.9 131.8 130.5 129.2
2014 128.2 126.8 125.3 124.1 123.4 122.9 121.9 120.7 119.9 119.2 117.9 116.3
2015 114.8 113.3 111.9 110.5 109.2 108.1 106.7 105.5 104.4 103.1 101.5 100.1
2016 98.6 97.3 96.4 95.6 94.7 93.9 92.9 92.0 91.1 90.2 89.4 88.8
2017 88.0 87.1 86.1 85.3 84.6 83.8 83.1 82.3 81.5 80.7 80.0 79.4
2018 78.8 78.2 77.7 77.1 76.6 76.2 75.9 75.6 75.2 74.9 74.5 74.0
2019 73.6 73.1 72.7 72.3 71.9 71.4 71.1 70.9 70.7 70.5 70.3 70.0
============================================================================
This page is updated monthly using observed monthly sunspot numbers from
the Solar Influences Data Analysis Center (http://sidc.oma.be). Monthly
values are smoothed using a 13 monthly running filter (first and last half weighting)
and, where needed, combined with a predicted sunspot number curve for Cycle 24.
Values which have an "e" next to them are based partly on observed and partly on
predicted values. Values earlier in time to these are based entirely on
observed values; values later in time are entirely predicted. Observed
data are adjusted slightly at times to use the SIDC final monthly values
which are available several months later - SIDC preliminary monthly values
are used up to this time.
All Solar Radio Flux values, including the "observed" values, are
obtained from sunspot numbers using a statistical conversion. They are
best described as equivalent solar flux values.
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