From Balmaseda et al.,2013
http://onlinelibrary.wiley.com/doi/10.1002/grl.50382/abstract
<p>
Fig. 14
<p>

<img src=balmaseda-2013-14.png alt="Ocean heat content vs time">
<p>
This graph shows the ocean heat content in upto different depths
as a function of time.
<p>

I wanted to know how much went in different layers since 2000.
So I differenced the graph, et viola (a large violin...)
<p>
<img src=balmaseda-d.png alt="Ocean heat content of different layers vs time">

<p>
to get the heat into different layers. Looks like 0-300,300-700m warmed from 
2000-2006 and 2006-2010 sees 700-2000m warming.
<p>
For comparison, I include Levitus(2012) OHC
<p>
<img src=levitus-2012.png>
<p>
Now I wonder whats going on below 2000m ...
<p>
So on to deeper(sorry) matters. Kouketsu(doi:10.1029/2010JC006464, 2011) 
give 1e22J/yr from 1990s to 2000s for full ocean, 0.8e21J/yr below 3000m,
0.4e21J/yr below 4000m .   
<p>
<img src=Kouketsu-2011-fig4.png alt="ocean heat content and depth">
<p>
Purkey(doi: 10.1175/JCLI-D-12-00834.1, 2013) 
say 14% (33Tw+/-14Tw) south of 30S latitude below 2000 m.
<p>
<img src=Purkey-2013-tableA1.png alt="Antarctic Bottom Water Heat increase">
Deep ocean is a player, moves faster than we suppose, the Kraken stirs.
<p>
<p>
Some approximations:
<ul>
<li>1e20 (1 followed by 20 zeroes) Joule of heat or 3 Terawatt for a year
is enough to melt enough ice (350 Gigaton) to raise sea level by 1 mm
By comparison, Greenland alone lost 574GTon in 2012.(Tedesco, 2012,
doi:10.5194/tcd-6-4939-2012)
<p>
<img src=tedesco-2012-fig8.png alt="GRACE measurements of GRIS mass change">
<p>
<li>Net Radiative imbalance from 1972-2008 due to greenhouse gases is
5.6e21 J/yr or about 183 Terawatt for the whole earth(Church,2011,
doi:10.1029/2011GL048794).About 60 times larger than required to melt enough
ice to raise sea level by one mm
<li>The Arctic floating icecap annually melts and refreezes 20,000 Gigatons
per year.  PIOMASS
<p>
<img src=http://psc.apl.washington.edu/wordpress/wp-content/uploads/schweiger/ice_volume/BPIOMASIceVolumeAnomalyCurrentV2_CY.png alt="Arctic sea ice volume variation">
<p>
If all the ice were land based, this would correspond to a sea level
rise and fall of 60 mm annually. This is suspiciously close to the net
yearly radiative imbalance ... and I see that http://psc.apl.washington.edu/wordpress/research/projects/arctic-sea-ice-volume-anomaly/ agrees approximately.
</ul>

<p>
Here's what Byron had to say
<p>

"Until the latter fire shall heat the deep..."

<p>
Below the thunders of the upper deep,<br>
Far, far beneath in the <a href=deepwave>abysmal sea</a>,<br>
His ancient, dreamless, uninvaded sleep<br>
The Kraken sleepeth: faintest sunlights flee<br>
About his shadowy sides; above him swell<br>
Huge sponges of millennial growth and height;<br>
And far away into the sickly light,<br>
From many a wondrous and secret cell<br>
Unnumber'd and enormous polypi<br>
Winnow with giant arms the lumbering green.<br>
There hath he lain for ages, and will lie<br>
Battening upon huge sea-worms in his sleep,<br>
Until the latter fire shall heat the deep;<br>
Then once by man and angels to be seen,<br>
In roaring he shall rise and on the surface die.<br>

<hr>