Quote:
Originally Posted by Grand_Lunar
I've been trying to find a reference stating that Scandinavia and Hudson Bay are rebounding, but can't find it. I don't doubt it; it's just to show my denier friend (he tried a search too and came up with nothing).
|
There are a lot of maps showing the total rebound since the end of the last ice age, such as the ones
here. Scroll down to the section headed "Regional Vertical Movements of the Crust" for the maps, and notice the remark:
Quote:
|
Note that in both places there is a shallow epicontinental sea directly under the center of the ice sheets, evidence that the rebound is not yet complete.
|
Maps showing that the land is still rising are a little harder to come by, but
here is one for Scandinavia. showing that the
ongoing rate across a broad swathe of the area is measurable in mm/yr. Likewise,
here is a description and map of the ongoing rebound in Canada (reference to the original article in
Science appears at the bottom).
Finally, some supporting evidence for Scandinavia is
here. The first paragraph under "Examples of Vertical Land Movements in Tide Gauge Records" contains a link to a "
First example plot" of sea levels at various European stations. Over the last 200-year span, it's clear that Stockholm is bucking the local trend and rising out of the sea, an effect the parent page ascribes to "Glacial Isostatic Adjustment (sometimes called Post Glacial Rebound, PGR) in Scandinavia".
There's a lot more around, I've just picked the first few samples that do the job and appear to have credibility. Searching on "Glacial Isostatic Adjustment" or "Post Glacial Rebound" will find you much more.
Grant Hutchison