STOCKHOLM, Sweden鈥擜viation officials say a solar storm knocked out the air traffic control systems in Sweden on Wednesday, prompting them to close the country鈥檚 airspace for more than an hour.
The civil aviation authority said the solar storm created disturbances in the Earth鈥檚 magnetic field, which affected radar installations in southern Sweden. No such problems were reported in neighboring countries.
Agency spokesman Per Froberg said flights disappeared from radar screens in Swedish air traffic control towers during the blackout, which lasted about an hour until 5:30 p.m. (1630 GMT). Froberg said it was unclear why the impact was so severe, adding the last time something similar happened in Sweden was in 1999.
鈥淲e鈥檙e working on sorting out the delays. We can鈥檛 examine the cause right now. We have our hands full,鈥� he said.
He couldn鈥檛 say how many flights were affected, but the country鈥檚 main airports listed dozens of delays.
Air traffic control officials in neighboring Denmark and Finland say they didn鈥檛 experience any problems.
鈥淭here haven鈥檛 been any disturbances. Only a few delays in Copenhagen because of the problems in Stockholm,鈥� said Mette Just of Naviair, Denmark鈥檚 air navigation service.
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