Also notable is the substantial variation in ocean heating rates between the three
different ocean heat content data sets.
Not exact matches
«Although the
different estimates of OHCA (
ocean heat content anomaly) produce seemingly
different estimates of interannual
ocean heating rate variability, these differences are all within the range of observational uncertainty.
That affects how quickly the land and
ocean temperatures respond and make a
different to the projection of the forcing onto the
ocean, and hence the
ocean heat content change.
This increased homogeneity, then, may alter the «how quickly the land and
ocean temperatures respond and make a
different to the projection of the forcing onto the
ocean, and hence the
ocean heat content change» and return the real world, combination - of - forcing, efficacy closer to that of CO2?
Trenberth et al. suggest that even the choice of a
different data set of
ocean heat content would have increased the climate sensitivity estimate of Otto et al. by 0.5 degrees.
Sorry, I was comparing
heat content (not SST, neither SAT) of
different parts of the
oceans down to 300 m depth (where most of the variation is visible), based on the data of Levitus e.a. which can be downloaded from the NOAA web site.
Secondly, and even more important, the increase in observed
heat content (based on NOAA data) is near equal for the NH and the SH (see: World
oceans), while the area's / volumes are
different.
For instance, Figure 15 compares the various
different estimates of
ocean heat content trends.
The difference in the climatological mean June - July - August
ocean heat content as measured by the depth of the 20 °C isotherm (in meters) overlaid with corresponding differences in
ocean heat transport vectors (W / m) between two numerical climate models with slightly
different bathymetries.
From greenhouse gas levels to
ocean heat content, 2014 was a record - breaking year for the Earth system in many
different ways.
By comparing the hemispheres to the tropical temperatures, you can see the shift of
heat content from neutral, to north or south and the
different amplification due to the land /
ocean ratio of the hemispheres.
doug @ 20 - fair criticism, but as surface dwellers, people do tend to focus on surface temps, and there are
different groups in NOAA looking at surface temps and
ocean heat content.
OHC: •
Different global estimates of sub-surface ocean temperatures have variations at different times and for different periods, suggesting that sub-decadal variability in the temperature and upper heat content (0 to to 700 m) is still poorly characterized in the historica
Different global estimates of sub-surface
ocean temperatures have variations at
different times and for different periods, suggesting that sub-decadal variability in the temperature and upper heat content (0 to to 700 m) is still poorly characterized in the historica
different times and for
different periods, suggesting that sub-decadal variability in the temperature and upper heat content (0 to to 700 m) is still poorly characterized in the historica
different periods, suggesting that sub-decadal variability in the temperature and upper
heat content (0 to to 700 m) is still poorly characterized in the historical record.
* There is no such thing as a meaningful «Earth» temperature, as some regions are cooling, some are warming, the depths of the
ocean have
different levels of
heat content that can not be uniformly measured against a mean, etc..
Here is what NOAA states about the inadequacies of
ocean heat content measurements:» Nonetheless, preliminary processing of Argo data indicates that it is not without problems associated with
different calibration and manufacturers of the instruments; a problem common for atmospheric measurements.
Fig. 4 from Kouketsu et al. (2011) shows
ocean heat content changes from the 1990 ′ s to the 2000 ′ s. Note the
different scales on the top and bottom panel.
These balance to within observational error, yet some still want to find a
different reason for the two warmings going together that is unrelated to the fact that the forcing has increased, even though they have generally agreed that the three components exist: surface warming,
ocean heat content increase and forcing increase.
I don't prefer one over the other as an intrinsic metric (they provide two
different pieces of information), but I find the
ocean heat content data to be a much less mature data set than the surface temperature data set.
Consensuses and discrepancies of basin - scale
ocean heat content changes in
different ocean analyses
The instrument temperature record shows they have
different impacts on the
ocean heat content and sea surface temperatures.
If someone comes up with a
different and cooler estimate for that deep
ocean heat content, I wonder what the next «
heat hiding place» will be?