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It's all of course inter-related but the key is understanding the North Atlantic Oscillation. Broadly speaking, it's pretty well established that a positive NAO results in a weak Labrador Current, a negative, the reverse.

We have data going back just over 100 years on the NAO,  but our understanding of it, much less our ability to predict it, is still not all that clear (this article is good recent reference on the NAO). To go back further one of course needs a proxy. To me this article essentially tries to provide just that.

by Jace on Sun Jan 9th, 2011 at 09:52:57 PM EST
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Nice article on NAO.

Do you think it is already possible to correlate this proxy-study to the 100 years of NAO data, or would we need more data points at various locations?  

by Nomad on Mon Jan 10th, 2011 at 03:19:00 PM EST
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Given the complexities of the system, I'd say this study is only a start.
by Jace on Tue Jan 11th, 2011 at 10:51:11 AM EST
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