Sodankylä Geophysical Observatory
Ionospheric tomography

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News related to ionospheric tomography chain:

2004-08-16 (tjr)
Reconstructions of June 2004 added to on-line database.

2004-07-19 (tjr)
Kokkola station moved to the new site at the Keski-Pohjanmaan Ammattikorkeakoulu in Kokkola. This will provide better internet connection to the station instead of ISDN connection and data delayed data transfer from the station to the observatory. This makes faster analysis possible in future.
2004-07-06 (tjr)
Wide thunderstorm broke internet connections to the stations and caused some bigger electri gaps on 6th of July. There were over 20000 lightnings measured in Some data of July will be lost.

2004-06-22 (tjr)
Reconstructions of May 2004 added to on-line database.

2004-06-22 (tjr)
Fifth station opened at Nurmijä:rvi (60.51N 24.65E) in start of June.

2004-05-19 (tjr)
Reconstructions of April 2004 added to on-line database.

2004-04-27 (tjr)
Reconstructions of March 2004 added to on-line database.

2004-04-26 (tjr)
Kiruna station down from 9th of Apr to 26th of Apr because of problems with local electric network.

2004-04-14 (tjr)
Reconstructions of January and February 2004 added to on-line database.

2004-02-26 (tjr)
Fifth station in Tromsö closed.

2004-02-25 (tjr)
Finnish EISCAT campaign finished.

2004-02-18 (tjr)
Finnish EISCAT campaign started.

2004-02-17 (tjr)
Fifth station installed to Tromsö
2004-02-16 (tjr)
Fourth station installed to Kilpisjärvi (69.02N 22.17E).
2004-01-22 (tjr)
Reconstructions of November and December 2003 added to on-line database

2004-01-21 (tjr)
News archive of ionospheric tomography chain has started. Some latest news below added.

2003-12-23 (tjr)
Amount of the active satellites have dropped down to three during the autumn 2003. There are 15-20 suitable overpasses available per day.

2003-12-23 (tjr)
Lulea station active after one mounth break due to broken antenna.

2003-12-01 (tjr)
Finally our tomography chain is on-line.

2003-10-18 (tjr)
Tromso station closed because of high custom fees. Station will be in operation during our EISCAT campaign February 2004.



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Last updated: 16 August 2004, 1028 UT (TJR)