Thanks for this, very interesanting!! I have a doubt. When you say "Higher up, where the air is thin and very little heat arrives from below, extra carbon dioxide allows the stratosphere to lose more heat to space than it gains, so the stratosphere cools.", you mean that the extra CO2 doesnt absorb heat as It does in the troposphere, so behaving in an opposite way as It behaves below, trapping heat and decreasing the release of energy back into the atmosphere? Why does it work this way? What is the mechanism below this diferent behaviour of the gh gas? Many thanks in advance!
Greenhouse gases both absorb and emit infrared radiation. The effects are quite complicated with height.
A physical analogy is adding a duvet over someone sleeping in a room. The temperature rises below the duvet but will fall in the air above the duvet. Both responses are due to less heat escaping to the air above the duvet.
The actual temperature change signal with lower atmosphere warming and upper atmosphere cooling was first predicted by Manabe in the 1960s using one of the first simple climate models.
In our work we are simply reporting the observed temperature changes.
Very interesting! One question: the line between 300 and 500 meters depth, what is the reason for the abrupt change in ocean heat? The pattern looks like a wedge above the line, as one would expect but then that wedge doesn’t continue below the line. Not sure I am making myself clear!
The colour scale is different for the top and bottom set of ocean layers. If it was the same colour scale then the bottom layers would all be the palest reds and blues. (The figure caption mentions the change in scale.)
thanks for your personal efforts in summarizing!
Thanks for this, very interesanting!! I have a doubt. When you say "Higher up, where the air is thin and very little heat arrives from below, extra carbon dioxide allows the stratosphere to lose more heat to space than it gains, so the stratosphere cools.", you mean that the extra CO2 doesnt absorb heat as It does in the troposphere, so behaving in an opposite way as It behaves below, trapping heat and decreasing the release of energy back into the atmosphere? Why does it work this way? What is the mechanism below this diferent behaviour of the gh gas? Many thanks in advance!
Greenhouse gases both absorb and emit infrared radiation. The effects are quite complicated with height.
A physical analogy is adding a duvet over someone sleeping in a room. The temperature rises below the duvet but will fall in the air above the duvet. Both responses are due to less heat escaping to the air above the duvet.
The actual temperature change signal with lower atmosphere warming and upper atmosphere cooling was first predicted by Manabe in the 1960s using one of the first simple climate models.
In our work we are simply reporting the observed temperature changes.
Very interesting! One question: the line between 300 and 500 meters depth, what is the reason for the abrupt change in ocean heat? The pattern looks like a wedge above the line, as one would expect but then that wedge doesn’t continue below the line. Not sure I am making myself clear!
The colour scale is different for the top and bottom set of ocean layers. If it was the same colour scale then the bottom layers would all be the palest reds and blues. (The figure caption mentions the change in scale.)
This was really clear - thank you