Long-term neutron monitor observations and the 2009 cosmic ray maximum

Journal of Geophysical Research: Space Physics

Volumn 115, Issue 12, 2010, Pages

  Moraal, H ^a   Stoker, P H ^a  

^a NORTH WEST UNIVERSITY   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 78650527345     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2010JA015413     Document Type: Article

References (23)

1. Abreu, J. A., J. Beer, F. Steinhilber, S. M. Tobias, and N. O. Weiss (2008), For how long will the current grand maximum of solar activity persist?, Geophys. Res. Lett., 35, L20109, doi:10.1029/2008GL035442.
2. Caballero-Lopez, R. A., H. Moraal, and F. B. McDonald (2004a), Galactic cosmic-ray modulation: effects of the solar wind termination shock and the heliosheath, J. Geophys. Res., 109, A05105, doi:10.1029/2003JA010358.
3. Caballero-Lopez, R. A., H. Moraal, K. G. McCracken, and F. B. McDonald, (2004b), The heliospheric magnetic field from 850 to 2000 inferred from 10Be records, J. Geophys. Res., 109, A12102, doi:10.1029/2004JA010633.
4. Iucci, N., G. Villoresi, L. I. Dorman, and M. Parisi (2000), Cosmic ray survey to Antarctica and coupling functions for neutron component near solar minimum (1996-1997), 2. Determination of meteorological effects, J. Geophys. Res., 105(A9), 21,035-21,045, doi:10.1029/2000JA900050.
5. Krainev, M., and M. Kalinin (2009), On the current phase of the solar cycle in the solar and heliospheric parameters and GCR intensity, Proc. 31st Int. Cosmic-ray Conf., Lodz, paper 1043.
6. Krüger, H., and H. Moraal (2010), A calibration neutron monitor: statistical accuracy and environmental sensitivity, Adv. Space Res., doi:10.1016/j. asr.2010.07.008, in press.
7. Krüger, H., H. Moraal, J. W. Bieber, J. M. Clem, P. A. Evenson, K. R. Pyle, M. Duldig, and J. E. Humble (2008), A calibration neutron monitor: energy response and instrumental temperature sensitivity, J. Geophys. Res., 113, A08101, doi:10.1029/2008JA013229.
8. Leske, R. A., A. C. Cummings, C. M. S. Cohen, R. A. Mewaldt, E. C. Stone, M. E. Wiedenbeck, and T. T. von Rosenvinge (2009), The unusual behavior of anomalous and galactic cosmic ray intensities at 1 AU during the present solar minimum, Proc. 31st Int. Cosmic-ray Conf., Lodz, paper 536.
9. Lockwood, M. (2010), Solar change and climate: an update in the light of the current exceptional solar minimum, Proc.R.Soc. Lond. A,466, 303-329.
10. Lockwood, M., A. P. Rouillard, and I. D. Finch (2009a), The rise and fall of open solar flux during the current grand solar maximum, Astrophys., 700, 937-944, doi:10.1088/0004-637X/700/2/937.
11. Lockwood, M., M. Owens, and A. P. Rouillard (2009b), Excess Open Solar Magnetic Flux from Satellite Data: II. A survey of kinematic effects, J. Geophys. Res., 114, A11104, doi:10.1029/2009JA014450.
12. McDonald, F. B., W. R. Webber, and D. V. Reames (2009), The unusual time history of galactic and anomalous cosmic rays at 1 AU over the solar minimum of cycle 23, Proc. 31st Int. Cosmic-ray Conf., Lodz, paper 480.
13. Moraal, H. (1993), Cosmic ray modulation studies in the outer heliosphere, Nuclear Phys. B. (Proc. Suppl.), 33A,B, 161.
14. Moraal, H. (2009), Galactic cosmic rays in the heliosphere, Proc. 31st Int. Cosmic-ray Conf., Lodz, rapporteur paper.
15. Moraal, H., M. S. Potgieter, P. H. Stoker, and A. J. van der Walt (1989), Neutron monitor latitude survey of the cosmic ray intensity during the 1986/87 solar minimum, J. Geophys. Res., 94, 1459, doi:10.1029/JA094iA02p01459.
16. Moraal, H., A. Belov, and J. M. Clem (2000), Design and co-ordination of multi-station international neutron monitor networks, Space Sci. Rev., 93, 85.
17. Reinecke, J. P. L., H. Moraal, M. S. Potgieter, F. B. McDonald, and W. R. Webber (1997), Different crossovers?, Proc. 25th Int. Cosmic-ray Conf., 2, 49.
18. Russell, C. T., J. G. Luhmann, and L. K. Jian (2010), How unprecedented a solar minimum?, Rev. Geophys., 48, RG2004, doi:10.1029/2009RG000316.
19. Steenberg, C. D. (1998), Modelling of the intensity of galactic and anomalous cosmic rays in the outer heliosphere, Ph.D. thesis, Potchefstroom University for CHE.
20. Steenberg, C. D., and H. Moraal (1999), The form of the anomalous cosmic ray spectrum at the solar wind termination shock, J. Geophys. Res., 104, 24,879-24,884, doi:10.1029/1999JA900336.
21. Stoker, P. H., L. I. Dorman, and J. M. Clem (2000), Neutron monitor design improvements, Space Sci. Rev., 93, 361.
22. Svirzhevsky, N. S., G. A. azilevskaya, V. S. Makhmutov, Y. I. Stozhkov, and A. K. Svirzhevskaya (2009), Low energy (E > 100 MeV) galactic cosmic rays in the prolonged activity minimum of the 24th solar cycle according to stratospheric measurements, Proc. 31st Int. Cosmic-ray Conf., Lodz, paper 1105.
23. Vieira, L. E. A., and S. K. Solanki (2010), Evolution of the solar magnetic flux on time scales of years to millennia, Astron. Astrophys., 509, A100.