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Plenary Lecture
Climate Change (in Sweden)- Geotechnical and Contaminated Land Consequences
Professor Yvonne Andersson-Skold
Co-authors: Carina Hulten, Louise Simonsson-Forsberg, Sofie Storbjork
Swedish Geotechnical Institute (SGI)
Goteborg, Sweden
Abstract:
According to climate scenarios the global
mean temperature will increase the nearest 50 to 100 year. Based on
regional climate models the annual precipitation and heavy rain events
in most parts of Sweden will consequently increase. The risks for
flooding will increase. Also the risks of erosion and landslide are
expected to increase as well changed behaviour and increased mobility
of soil contaminants. The summer season in general is expected to
become drier. There consequently is expected to be larger fluctuations
of groundwater levels further enhancing risks of erosion, land slides
and mobility of soil contaminants. One of the areas expected to be
among the most affected in Sweden is the Lake Vanern and the Gota alv
river system.
The Swedish geotechnical institute has, together with other agencies
and universities in Sweden, contributed in the national climate and
vulnerability inquiry (SOU 2007:60, Sverige infor klimatforandringarna
- hot och mojligheter). The individual contributions are presented in
separate appendixes. Here the results from the following reports will
be presented:
Impact of Flooding on soil pollutants, Andersson-Skold, Nyberg,
Goransson, 2007, Varia 576 & Varia 577, SGI, Statens geotekniska
institut 2006. (In Swedish)
Hulten C, Edstam T, Arvidsson O, Nilsson G. 2006. Increased tapping
from lake Vanern and related geotechnical conditions in the Gota alv
valley. (Geotekniska forutsattningar for okad tappning fran Vanern
till Gota alv. Underlag till klimat och sarbarhetsutredningen.) SGI,
Statens geotekniska institut 2006. (In Swedish)
Fallsvik, J, Hageryd, A-C, Lind, B, Alexandersson, H, Edsgard, S,
Lofling, P, Nordlander, H, 2007, Assessment of erosion and landslides
in a changing climate (Oversiktlig bedomning av jordrorelser vid
forandrat klimat, preliminar version Dnr 1-0611-0652) (In Swedish)
Based on the results from the national climate and vulnerability
inquiry research projects have been initiated. One project focuses on
the vulnerability and adaption capacity among municipalities along the
Gota alv river system. The project includes eco social, environmental
and geotechnical aspects and is done in co-operation by Linkoping
University and Swedish Geotechnical Institute. The aim is to present
some preliminary results from this project. |
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