Well I think the Natural Energy Lab of Hawaii could provide
good deep ocean temperature stats and they are a commercial enterprise.
Not exact matches
The standard assumption has been that, while heat is transferred rapidly into a relatively thin,
well - mixed surface layer of the
ocean (averaging about 70 m in depth), the transfer into the
deeper waters is so slow that the atmospheric
temperature reaches effective equilibrium with the mixed layer in a decade or so.
The long - wave radiation estimated for surface
temperatures is pretty clear that forcing is occuring near the equator and since the
ocean in this region is acccumulating heat that will eventually re-emerge the
deeper it can be sequestered the
better.
There is
good evidence that the answer to both these question is no: (The insensitivy of the results to methodology of selecting rural stations, the Parker et al windy days study, and the fact that data from satellite skin surface measurements, from sea surface
temperatures,
deep ocean temps as we as tropospheric temps are all in
good agreement).
That is, if the world stabilized at its present
temperature I suppose the
deep ocean would eventually get warmer, as
well as other changes.
I agree that longer term processes as
well as in the
oceans as in the biosphere have their influence, but these too are limited: once the
temperature of the full
ocean (including the
deep oceans) is increased by a certain
temperature, the related increase of CO2 in the atmosphere will hinder a further increase of CO2 from the
oceans.
Better characterize the
deep ocean to quantify the role of deep temperature and salinity signals that contribute to AMOC variability through enhancements to the observing system that directly measure deep ocean properties (temperature, salinity, and velocity) such as Deep Argo, Deep gliders, and moored instrumentat
deep ocean to quantify the role of
deep temperature and salinity signals that contribute to AMOC variability through enhancements to the observing system that directly measure deep ocean properties (temperature, salinity, and velocity) such as Deep Argo, Deep gliders, and moored instrumentat
deep temperature and salinity signals that contribute to AMOC variability through enhancements to the observing system that directly measure
deep ocean properties (temperature, salinity, and velocity) such as Deep Argo, Deep gliders, and moored instrumentat
deep ocean properties (
temperature, salinity, and velocity) such as
Deep Argo, Deep gliders, and moored instrumentat
Deep Argo,
Deep gliders, and moored instrumentat
Deep gliders, and moored instrumentation.
This suggests that the Tambora subsurface
temperature and sea level perturbations could last
well into the 20th century, interfering with the effects of the devastating Krakatau, Santa Maria, and Katmai eruptions which occurred respectively in 1883, 1902, and 1912, producing a cumulative impact on the
deep ocean thermal structure in the 20th century.
Climate change can influence the distribution of dead zones by increasing water
temperature and hence microbial activity, as
well as reducing mixing of the
ocean (i.e., increasing layering or stratification) of the Ocean — which have different temperatures, densities, salinities — and reducing mixing of oxygen - rich surface layers into the deeper parts of the O
ocean (i.e., increasing layering or stratification) of the
Ocean — which have different temperatures, densities, salinities — and reducing mixing of oxygen - rich surface layers into the deeper parts of the O
Ocean — which have different
temperatures, densities, salinities — and reducing mixing of oxygen - rich surface layers into the
deeper parts of the
OceanOcean.
On your second point, here, my first reaction on seeing the unbelievably
good match to
temperature was to leap to the assumption that GISS E was burying heat in the
deep ocean — or losing heat to some invisible sink.
«
deep ocean temperature change does not provide a
good indication of surface
temperature change when the
deep ocean approaches the freezing point, as quantified by Waelbroeck et al. (2002).
Thus, we take 4.5 °C as our
best estimate for LGM cooling, implying an amplification of surface
temperature change by a factor of two relative to
deep ocean temperature change for this climate interval.
The close match is partly a result of the fact that sea - level and
temperature data are derived from the same
deep ocean record, but use of other sea - level reconstructions still yields a
good fit between the calculated and observed
temperature [5].
We use isotope data from Zachos et al. [4], which are improved over data used in our earlier study [5], and we improve our prescription for separating the effects of
deep ocean temperature and ice volume in the oxygen isotope record as
well as our prescription for relating
deep ocean temperature to surface air
temperature.
If you have
good measurements of upper
ocean and atmospheric
temperatures, then if you had a
good decade - long satellite record of the Earth's total radiative energy balance from space — say, if Triana has been launched to in the late 1990s — then you could use conservation of energy to calculate the rate of heat uptake by the
deep ocean over the past ten years.
More succinctly, if
deep ocean temperatures can naturally rise by 1 °C in 100 years without any change in CO2, then attributing changes in
ocean temperature that are already «below the detection limit» for the last 200 years (or just ~ 0.1 °C since 1955) to anthropogenic CO2 forcing is highly presumptuous at
best.