Related Experiment Video
Updated: Dec 12, 2025
08:15
Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression
Published on: July 28, 2023
1.7K
Heat and carbon coupling reveals ocean warming due to circulation changes
Ben Bronselaer1,2,3,4, Laure Zanna5,6
1Atmospheric, Oceanic and Planetary Physics, University of Oxford, Oxford, UK. benjamin.bronselaer@cantab.net.
Nature
|August 14, 2020
Summary
Global warming is linked to cumulative carbon emissions, with the ocean playing a key role in heat and carbon storage. Ocean circulation significantly impacts warming patterns, but climate models struggle to accurately represent these complex processes.
Area of Science:
- Earth System Science
- Climate Modeling
- Oceanography
Background:
- Anthropogenic global surface warming correlates with cumulative carbon emissions.
- Ocean heat and carbon storage are influenced by ocean transport and circulation.
- Current climate models exhibit inaccuracies in simulating observed ocean warming patterns and circulation.
Purpose of the Study:
- To establish a linear relationship between ocean heat and carbon uptake.
- To assess the impact of ocean circulation changes on observed and simulated ocean warming.
- To evaluate the performance of climate models in capturing ocean warming patterns.
Main Methods:
- Established a linear relationship between ocean heat and carbon uptake based on intrinsic Earth system parameters.
- Utilized the established relationship to analyze the effect of ocean circulation changes on ocean warming patterns.
- Compared observed ocean warming patterns with simulations from Fifth Coupled Model Intercomparison Project (CMIP5) models.
Main Results:
- Historical ocean warming patterns are significantly shaped by ocean heat redistribution, which CMIP5 models poorly simulate.
- Projected ocean heat storage patterns are primarily determined by pre-industrial ocean circulation, not circulation changes.
- Climate models demonstrate greater skill in simulating heat storage based on pre-industrial circulation compared to heat redistribution.
Conclusions:
- Ocean heat redistribution by circulation is a key driver of historical ocean warming patterns, but is poorly represented in models.
- Future ocean warming patterns are likely to be more predictable, primarily dictated by pre-industrial ocean circulation.
- Improved climate model accuracy in simulating ocean circulation is crucial for reliable future climate projections.
Related Concept Videos
01:50Global Climate Change
28.3K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
28.3K
01:12Heat Flow and Specific Heat
6.4K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
6.4K
01:19Mechanism of heat transfer
1.7K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.7K
01:14The Carbon Cycle
42.8K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
42.8K
01:20Mechanisms of Heat Transfer II
4.0K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.0K
01:14Mechanisms of Heat Transfer
1.4K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.4K