All in all, I don't see a very convincing case for
deep ocean sequestration of heat.
Previously, you were unconvinced that there was
deep ocean sequestration of heat to any degree.
Nor does residence time have anything to do with oceanographers» imaginary bottleneck in the boundary layer, where CO2 waits thousands of years for
deep ocean sequestration to make room in the surface layer, constrained by equilibrium carbonate equations.
Not exact matches
Here, we report on advances made in methane hydrate research and
deep -
ocean Raman spectroscopy, and on proposals for fossil fuel CO2
sequestration and on controlled
ocean acidification studies.
Eddies carry heat, carbon, and other biogeochemical tracers into the
deep ocean, aiding carbon and heat
sequestration.
My understanding of this process is that it mostly occurs near coastal upwellings which bring up nutrients from the
deep and that it is responsible for a significant fraction of
ocean carbon
sequestration.
As researchers concluded in a new study published in Geophysical Research Letters,
ocean iron fertilization can only prove successful as a climate geoengineering approach if, in addition to phytoplankton bloom stimulation, «a proportion of the particulate organic carbon (POC) produced must sink down the water column and reach the main thermocline or
deeper before being remineralized... and the third phase is long - term
sequestration of the carbon at depth out of contact with the atmosphere.»
However, the key point here is that the observational data, including Curry's own reference, contradict her point by finding substantial
deep ocean heat
sequestration over the past decade.
Sequestration of organic carbon in the
deep sea by stimulating spring phytoplankton production in high - latitude
oceans;
Specifically, if the variability controlling the current hiatus is linked to longer - term
sequestration of heat into the
deep ocean, this might require us to recalibrate future projections.
The Atlantic initiated the heat
sequestration toward the end of the 20th century below 700 m. Indian
Ocean's
deeper layers warmed last and with much smaller amplitude.
Injecting the carbon
deep underground or
deep into the
ocean are the two main avenues being explored for large - scale, long - term
sequestration.
But the bottom line is that there does not seem to be any observational support for this large
sequestration of heat in the
deep ocean that is shown by the reanalysis.
Also
sequestration in the
deep ocean doesn't require mixing.
So there could be some additional future warming due to
sequestration of heat in the
deep ocean.