Graphs & data of long term monthly averages normalized to 100 for March 1987

• SRU Neutron Monitor monthly averages   *    [21KB]

  Data normalized to 100 for March 1987. This file contains the latest corrections for long-term stability, done on 10 December 2010, and it is recommended that this one should be used for long-term studies. Other variants of the data files do not yet contain this latest correction. This latest correction is for SANAE and SANAE NMD, increased by +2% since April 1997, and it will be explained in a paper at the 32nd ICRC in 2011

• SRU Neutron Monitors Monthly Graphs   *   [pdf]

              This graph is drawn from the adove data

Hourly data & graphs per month

Hourly count rate strings

• Tsumeb, Namibia from 1976    [7593KB]
• Potchefstroom, South Africa from 1971    [8627KB]
• Hermanus, South Africa from 1964    [9859KB]
• SANAE I II III, Antarctica from 1964 to 1994    [7310KB]
• SANAE IV, Antarctica from 1997    [4229KB]
  (Right click to save hourly count rate file)