Oulu, Finland
Operated by Sodankyla Geophysical Observatory of the University of Oulu.
Specifications
| Detector | 9-NM-64 (Chalk River tubes) |
| Geographic latitude | 65.05° N |
| Geographic longitude | 25.47° E |
| Altitude | 15 m asl |
| Effective vertical cutoff rigidity | ~0.8 GV |
| In operation since | April 1964 |
| Time resolution: | 1-hr - since 1964 |
| 5-min - since 1985 | |
| 1-min - since 1995 | |
| 10-sec - 1995-2008 | |
Detailed station information
Conditions for Use of Data
Details about the use of the Oulu NM data can be found in http://cosmicrays.oulu.fi/readme.html
Contact
Web-site: http://cosmicrays.oulu.fi
Responsible person: Ilya Usoskin
References
Kananen, H., P.J. Tanskanen, L.C. Gentile, M.A. Shea and D.F. Smart, A quarter of a century of relativistic solar cosmic ray events recorded by the Oulu neutron monitor, Proc. 22nd ICRC, 3, 145-148, 1991.