Author(s): Peter Larsen; Lennart Billfalk
Linked Author(s): Lennart Billfalk, Peter Larsen
Keywords: No Keywords
Abstract: Sweden is located between northern latitudes 550 and 680 which for comparison is similar to the location of Labrador in North America. Despite its northerly position, the winters are less severe due to the influence of the Gulf Stream. Some typical isotherms of January are 0C through Scania and up along the Swedish west coast and -11C in the Lulea area. Hydropower generation, which presently produces about two-thirds of the Swedish consumption of electricity is produced under varying climatic conditions. In the south of Sweden, periods of sub-freezing temperatures are interrupted by warm spells while in the north a rather long period of steady sub-freezing temperatures is experienced. The paper gives the results of a preliminary survey made to map the ice problems encountered in Swedish hydropower installations. A questionnaire was distributed to private as well as government plants distributed over the whole country. The paper is essentially based on the information thus obtained. It was found that problems occur more frequently in the southern and middle parts of Sweden and the most common cause of problems was the occurrence of frazil
Year: 1978