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1986
The SAMNET project was initiated by David Orr and Dave Milling at the University of York. Early work involved the design of the system and finding suitable locations for the magnetometers.
1987-10-01
SAMNET operation began with magnetometers at Faroes, Glenmore Lodge, Nordli, Nurmijärvi, Oulu and York.
1987-10-13
The SAMNET magnetometer at Kvistaberg became operational.
1995-11-01
1 s resolution data recording began at Nurmijärvi. [1]
1995-11-04
1 s resolution data recording began at Oulu. [1]
1995-11-09
1 s resolution data recording began at Nordli. [1]
1995-11-10
1 s resolution data recording began at Kvistaberg. [1]
1996-01-26
1 s resolution data recording began at York. [1]
1996-06-13
1 s resolution data recording began at Glenmore Lodge. [1]
1997-01-03
1 s data from the IMAGE magnetometer at Hankasalmi included in the SAMNET archive.
1997-12-01
1 s data from the IMAGE magnetometer at Kilpisjärvi included in the SAMNET archive.
1998-03-31
1 s resolution data recording began at Faroes. [1]
1998-10-06
The SAMNET magnetometer at Hella became operational.
1998-12-03
The SAMNET magnetometer at Borok became operational.
2000-09-19
The University of York launched AuroraWatch.
2001-01-01
1 s resolution data from the British Geological Survey magnetometers included into the SAMNET data archive.
2002-05-15
Data recording at Glenmore Lodge terminated due to excessive cultural noise.
2002-05-17
The SAMNET magnetometer at Crooktree was introduced as a replacement for Glenmore Lodge.
2003-01-01
The SAMNET magnetometers at Nurmijärvi, Oulu and Kvistaberg ceased operation and were replaced by 1 s resolution data taken from the IMAGE magnetometers at Nurmijärvi and Oulujärvi and by the Geological Survey of Sweden magnetometer at Uppsala.
2003-04-01
SAMNET relocated to Lancaster University, to be operated by the Space Plasma Environment and Radio Science (SPEARS) of the Department of Communication Systems.
2005-05-16
The IMAGE magnetometer at Hankasalmi has been removed as part of the decommissioning process of the STARE radar system. Consequently from this date SAMNET is unable to provide 1 second resolution data from Hankasalmi.

Notes

  1. New loggers provided 1 s GPS synchronised sampling with 0.1 nT resolution and increased (nominal) range of 2000 nT for southern stations and 3000 nT for northern stations. In 1997 the data loggers were updated to run Linux.

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