SHOCK CLAIM: World is on brink of 50 year ICE AGE

http://www.express.co.uk/news/weather/612369/SHOCK-CLAIM-World-is-on-brink-of-50-year-ICE-AGE-and-BRITAIN-will-bear-the-brunt

AccuWeather senior meteorologist Alex Sosnowski said icy Atlantic waters could affect the weather for years to come.

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A spokesman said: “A return to low solar activity not seen for centuries could increase the chances of cold winters in Europe and eastern parts of the United States but wouldn’t halt global warming.

“Return of ‘grand solar minimum’ could affect European and eastern US winters.”…

New paper finds current climate models are ‘unable to reproduce present or future climate accurately’: Study published in Nature finds “a new player on the scene” called “internal lee waves” are “a player in ocean dynamics that may make an important contribution to deep-ocean mixing…Climate models that do not represent this mixing appropriately will be unable to reproduce present or future climate accurately’

New paper finds current climate models are ‘unable to reproduce present or future climate accurately’

http://hockeyschtick.blogspot.com/2013/09/new-paper-finds-current-climate-models.html

More problems for the models: An article published today in Nature says “a new player on the scene” called “internal lee waves” are “a player in ocean dynamics that may make an important contribution to deep-ocean mixing…Climate models that do not represent this mixing appropriately will be unable to reproduce present or future climate accurately.” According to the article, current IPCC climate models do not include this deep-ocean mixing from lee waves, which “warrant serious consideration for inclusion in the next generation of climate models.”

Excerpts:

Internal lee waves are a player in ocean dynamics that may make an important contribution to deep-ocean mixing. They warrant serious consideration for inclusion in the next generation of climate models. 

Turbulent mixing in the ocean interior plays a crucial part in driving downward transport of heat and dissolved  greenhouse gases and upward transport of  biologically essential nutrients. It also ultimately supplies the deep ocean with the  energy that drives a global network of currents known as the meridional overturning  circulation. Climate models that do not represent this mixing appropriately will be unable  to reproduce present or future climate accurately. 

Many previous studies have focused  on the breaking internal waves that are driven  by tides and winds as the dominant source  of that turbulence. In a paper published in  Geophysical Research Letters, Nikurashin  and Ferrari2 describe a previously under-  appreciated dynamic mechanism — internal  lee waves — that may significantly contribute  to mixing in the deep ocean. Away from the direct influence of surface  forcing, most turbulent mixing in the ocean  interior is driven by breaking internal gravity  waves3. These propagate along and across den- sity interfaces within the ocean, similar to the  interfacial waves you might see between oil and  vinegar in a glass or even between coffee and  milk in a well-made cappuccino. Compared  with the more familiar surface waves, internal  waves are much slower, with periods of hours  instead of seconds. 

Their breaking is in many  ways analogous to that of surface waves on the  beach, albeit in a slow-motion, larger-than-life  way — the wave height may reach tens or even  hundreds of metres3. But unlike waves at the  beach (which lose all of their energy to heat  or sound with each thunderous crash), some  of the energy lost by breaking internal waves  increases the …

Global warming pause tied to equatorial Pacific surface cooling: Climate scientist Dr. Judith Curry on new study: ‘My mind has been blown by a new paper just published in Nature’

Pause tied to equatorial Pacific surface cooling

http://judithcurry.com/2013/08/28/pause-tied-to-equatorial-pacific-surface-cooling

by Judith Curry My mind has been blown by a new paper just published in Nature. Just when I least expected it, after a busy day when I took a few minutes to respond to a query from a journalist about a new paper just published in Nature [link to abstract]: Recent global warming hiatus […]…