Station name: |
Oulu Neutron Monitor |
Station short name: |
OULU |
Start date: |
1964-04-01 |
End date: |
None |
Head organization: |
Sodankyla Geophysical Observatory, University of Oulu, SGO-OTY, 90014 University of Oulu, Finland |
Principal investigator: |
Ilya Usoskin |
Contact person: |
Ilya Usoskin |
Latitude [°]: |
65.0544 |
Longitude [°]: |
25.4681 |
Altitude [m] asl: |
15.0 |
Geomagnetic cutoff rigidity [GV]: |
0.8 |
Average count rate [s-1] during solar activity minimum: |
115.0 |
Average count rate [s-1] during solar activity maximum: |
85.0 |
Reference atmospheric pressure [mbar]: |
1000.0 |
Barometric coefficient [%/mbar]: |
0.74 |
Information on detector housing: |
Pyramid-shaped warmed roof => no snow accumulation. Material: aluminum |
Type of counter tube: |
Chalk River neutron counter BP28 |
Number of counter tubes: |
9 |
Information on detector: |
Moderator: Polyethylene tube, wall thickness 2.0 cm, Reflector: Polyethylene 7.6 cm, 3 sections X 3 counters |
Atmospheric pressure sensor: |
Vaisala digital barometer VPB 200, resolution 0.01 mb, stable (routine calibration by mercury barometer), claimed 0.1 mb within the operated temperature range (15-30 C) |
Information about clock: |
GPS |