North Atlantic Heat Transport Convergence from Ocean Energy Budget
Author Information
Author(s): Meyssignac B., Fourest S., Mayer Michael, Johnson G. C., Calafat F. M., Ablain M., Boyer T., Cheng L., Desbruyères D., Forget G., Giglio D., Kuusela M., Locarnini R., Lyman J. M., Llovel W., Mishonov A., Reagan J., Rousseau V., Benveniste J.
Primary Institution: Université de Toulouse, LEGOS (CNES/CNRS/IRD), France
Hypothesis
How does the ocean heat transport convergence in the North Atlantic vary over time?
Conclusion
The study found that the mean ocean heat transport convergence in the North Atlantic is 0.58 ± 0.25 PW, which aligns well with observed data.
Supporting Evidence
- The mean ocean energy budget of the North Atlantic is closed to within ±0.25 PW.
- The inferred mean oceanic heat transport convergence is 0.58 ± 0.25 PW.
- Interannual variability of the inferred oceanic heat transport convergence shows a correlation of 0.54 with observed data.
- The results are robust against different methods used to estimate ocean heat content.
- Surface heat flux is the dominant term in the ocean energy budget.
Takeaway
This study looks at how heat moves through the North Atlantic Ocean and finds that it is mostly balanced, meaning the heat coming in is about the same as the heat going out.
Methodology
The study used an oceanic energy budget approach to estimate heat transport convergence based on satellite and in-situ measurements.
Potential Biases
Potential biases may arise from the methods used to estimate ocean heat content and surface heat fluxes.
Limitations
The study's estimates may be affected by uncertainties in the ocean heat content data and assumptions about the stability of the heat transport over time.
Statistical Information
P-Value
0.54
Confidence Interval
±0.25 PW
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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