Scientists used calculations of ocean water volume to see how much of the surface level rise was caused by expansion of water below the depth of 1.24 miles, considered to be deep ocean depth. They calculated the volume of upper water increase due to temperature and added the increase at the surface due to melting ice. Those two factors accounted for all the water level increase. The assumption is that the lower depths contributed nothing because they didn't warm up.
The water above 1.24 is warming up, but its rate of warming has slowed down in recent years compared to the atmosphere warming rate. In the past, the atmosphere and ocean surface waters were warming up in tandem.
There are still too many variables to get a good idea of what is happening in the atmosphere and the oceans. Except that they are definitely warming up.
Why the lower depths haven't warmed up could simply be a case of a time lag caused the heat moving laterally through the land, oceans, and atmosphere, causing it to take longer to heat up the lower depths. The same way the polar ice has reduced the rate of global warming by soaking up excess heat which then melted the ice, the way the land, water, and air interact could cause time delays to be built in, acting as a cushion or damper on a more rapid temperature increase.
Global Dimming The atmosphere was shaded by aerosols, dust, industrial pollutants, volcanoes, etc., which reduced the calculated global warming rate for several years. It took 20 years to get to the bottom of global dimming. When efforts were made to reduce human contributions to the atmosphere, it went from increasing global dimming, to increasing global brightness, which meant back to a higher rate of warming.
The atmosphere now has bouts of dimming, scattered around the world as climate and human forces clog up the air. Big, uncontrollable fires are a big contributor on the random side. Utilizing global dimming, some people want to dust up the upper atmosphere to put a brake on global warming.
It has now been discovered that melting and refreezing of the polar ice sheets covering the water determine what kind of ocean currents are generated in the waters underneath the ice. It turns the currents on and off in the shallow water beneath the ice, while the deeper waters create their own current schedules. The way the layering effect, based on friction between water and ice effects the energy interaction could also be related to the way the upper water levels and the lower water levels act independently towards each other.
All these interactions are modeled individually. It will probably turn out that valid climate models that incorporate everything will need a quantum computer to give relevant answers in real time.
The water above 1.24 is warming up, but its rate of warming has slowed down in recent years compared to the atmosphere warming rate. In the past, the atmosphere and ocean surface waters were warming up in tandem.
There are still too many variables to get a good idea of what is happening in the atmosphere and the oceans. Except that they are definitely warming up.
Why the lower depths haven't warmed up could simply be a case of a time lag caused the heat moving laterally through the land, oceans, and atmosphere, causing it to take longer to heat up the lower depths. The same way the polar ice has reduced the rate of global warming by soaking up excess heat which then melted the ice, the way the land, water, and air interact could cause time delays to be built in, acting as a cushion or damper on a more rapid temperature increase.
Global Dimming
The atmosphere was shaded by aerosols, dust, industrial pollutants, volcanoes, etc., which reduced the calculated global warming rate for several years. It took 20 years to get to the bottom of global dimming. When efforts were made to reduce human contributions to the atmosphere, it went from increasing global dimming, to increasing global brightness, which meant back to a higher rate of warming.
The atmosphere now has bouts of dimming, scattered around the world as climate and human forces clog up the air. Big, uncontrollable fires are a big contributor on the random side. Utilizing global dimming, some people want to dust up the upper atmosphere to put a brake on global warming.
It has now been discovered that melting and refreezing of the polar ice sheets covering the water determine what kind of ocean currents are generated in the waters underneath the ice. It turns the currents on and off in the shallow water beneath the ice, while the deeper waters create their own current schedules. The way the layering effect, based on friction between water and ice effects the energy interaction could also be related to the way the upper water levels and the lower water levels act independently towards each other.
All these interactions are modeled individually. It will probably turn out that valid climate models that incorporate everything will need a quantum computer to give relevant answers in real time.
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