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Archives for October 2016

Tuning in to climate models

30 Oct 2016 by Gavin

There is an interesting news article ($) in Science this week by Paul Voosen on the increasing amount of transparency on climate model tuning. (Full disclosure, I spoke to him a couple of times for this article and I’m working on tuning description paper for the US climate modeling centers). The main points of the article are worth highlighting here, even if a few of the characterizations are slightly off.

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Filed Under: Climate modelling, Climate Science, Reporting on climate

Q & A about the Gulf Stream System slowdown and the Atlantic ‘cold blob’

14 Oct 2016 by Stefan

Last weekend, in Reykjavik the Arctic Circle Assembly was held, the large annual conference on all aspects of the Arctic. A topic of this year was: What’s going on in the North Atlantic? This referred to the conspicuous ‘cold blob’ in the subpolar Atlantic, on which there were lectures and a panel discussion (Reykjavik University had invited me to give one of the talks). Here I want to provide a brief overview of the issues discussed.

What is the ‘cold blob’?

This refers to exceptionally cold water in the subpolar Atlantic south of Greenland. In our paper last year we have shown it like this (see also our RealClimate post about it):

fig1a_new

Fig. 1 Linear temperature trends from 1901 to 2013 according to NASA data. Source: Rahmstorf et al, Nature Climate Change 2015.

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Filed Under: Climate conference report, Climate modelling, Climate Science, Oceans, Paleoclimate

Unforced Variations: Oct 2016

1 Oct 2016 by group

Here’s hoping for no October climate surprises…

Carry on. Usual rules.

Filed Under: Climate Science, Open thread

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