Author(s): Hongtao Li; Morten Bjerkas; Knut V. Hoyland; Torodd S. Nord
Keywords: No Keywords
Abstract: This paper provides an overview of ice actions on Norstr"omsgrund lighthouse within the LOLEIF/STRICE projects in 2000 to 2003. Ice actions are quantified through weekly peak panel loads and weekly load intensities. Environmental conditions are quantified by an estimated level-ice thickness together with wind speed and wind directions. Annual ice thicknesses were estimated by using 63-years temperature data. The winter seasons 2000,2001and 2002 had thinner ice than the 63-years average, whereas the 2003 season had thicker ice than the 63-years average. The measured weekly maximum panel line loads and load intensities were on average higher in the 2003 season than the seasons 2000 to 2002. The highest panel line load and load intensity were, however, measured in the the milder season of 2001.