I am not convinced that we know anything from this particular item. To start with, the necessary measurements are few enough to be largely early days for this science. A simple shifting back and forth along a channel of movement will provide vast ranges of variation and that as yet can not be discounted without a massive investment in data collection that we are nowhere near having.
I have already argued for a millennial long cycle in the impact of the North Atlantic on global climate. The implied variation supports a modest increase in heat flow brought about by a modest change in flow rate of the currents. The gulf Stream is a perfectly good suspect but that does not exclude other deeper flows we barely know exist. Again, during the Bronze Age, the North Atlantic was an amazing two degrees warmer for a long time.
In short, this paper is at best a guess. The trouble with all this, besides the lack of data is the lack of perspective drawn from centuries of such observations. I sometimes wish science would hold off on speculation where the data is scant or at least say as much. Even my interpretation of a millennial cycle is based on some good evidence and a best interpretation of truly ancient sources that supports the proposition past three data points. I went looking and found support when I asked the question suggested by the key data points.
Internal heat waves are a nice idea. So are quarks. The messy part comes in demonstration. We already know that we have a discernable forty year cycle related to hurricanes and climate change generally. So we can not go too far wrong there. Transporting that heat cycle through a subsea mechanism that is not a slow moving current is helpful. Having such a device ex machina makes simulation almost work.
So prove it exists!
Internal waves transport oceanic heat within 40 years
Jun 29, 2010
The researchers reported their work in Sciencexpress.
No comments:
Post a Comment