Impressions from the STRICE Campaign
on the Lighthouse Norstrømsgrund
during the 2003 Measurement Period

Obtained and assembled by Kari Kolari of VTT during
work on the lighthouse from February 15 to 23, 2003.

Measured level ice thickness ranged from 0.4 to 0.7 metres.

Video scenes of ice - structure interaction / ice crushing events

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Ice crushing movie scene 1
(compressed AVI format ~0.2 MB)

Uncompressed movie scene 1
(AVI format ~2.6 MB)

Ice crushing movie scene 2
(compressed AVI format ~0.2 MB)

Uncompressed movie scene 2
(AVI format ~2.9 MB)

Ice crushing movie scene 3
(compressed AVI format ~0.3 MB)

Uncompressed movie scene 3
(AVI format ~3.2 MB)

The vibration which can be seen in the video scenes taken with the camera fixed to the lighthouse result from ice-structure interaction and thereby caused static and dynamic loads. The lighthouse vibrates partially very heavily and with different modes and frequencies in response to the ice forces and movements.

Photos of ice conditions, instrumentation, work, and life on the lighthouse

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Further information to these photos will be provided soon.