Is Scotland at risk from rising sea levels?
During the last ice age Scotland, like much of northern Europe, was covered with ice. The weight of this huge compacted ice sheet pushed the Earth's crust down, causing the land levels to sink. Over the 14,000 years since the ice sheet melted, Scotland has been rising an average rate of 1-2mm per year. New research launched today is using cutting edge satellite technology to examine how parts of Scotland will be affected by rising sea levels over the coming years. Experts believe that, due to the melting of the ice sheet that once covered northern Britain, much of Scotland's land has been rising at a higher rate than the sea surrounding it. However, recent studies have suggested that this uplift of the Earth's crust may be being outpaced by sea level rise, a fact that might threaten much of Scotland's low-lying coastal areas over the long term. To answer this question researchers from the University of Glasgow are using the latest satellite radar imaging technology, interferometric synthetic aperture radar (InSAR), to measure the rate of uplift across Scotland, using repeat-pass satellites to track changes in the Earth's surface that may otherwise go unnoticed.


