Findings include a discovery that surface waters in the open Arctic
Ocean release heat - trapping methane gas into the atmosphere at a «significant» rate
You do know
the oceans release heat daily, weekly, seasonally, and in various oscillations and cycles, etc..
During El Niño
the ocean releases heat, during La Niña it stores more heat.
Isn't it evident that as the surface warms the ocean heat sink will tend to absorb more heat, and that if the surface cools then
the ocean releases heat?
If the CO2 levels fall or the world temperature falls It will fall less fast due to
the oceans releasing some heat or CO2 to stay in equilibrium.
Not exact matches
Longer timescales bring changes in vegetation that also affect
heat absorption, and the possibility that land and
oceans begin to
release CO2 rather than absorb it.
«This is like opening a pressure relief valve — the
ocean then
releases a surplus of
heat to the atmosphere for several consecutive winters until the
heat reservoir is exhausted,» adds Professor Latif.
But nearly twice as much of the sunlight energy captured by phytoplankton in the
ocean is
released as
heat than is used to make food, researchers report January 7 in Science.
As the climate changes, Southern
Ocean upwelling may increase, which could accelerate ice shelf melting, release more carbon into the atmosphere and limit the ocean's ability to absorb heat and carbon dioxide from the atmosp
Ocean upwelling may increase, which could accelerate ice shelf melting,
release more carbon into the atmosphere and limit the
ocean's ability to absorb heat and carbon dioxide from the atmosp
ocean's ability to absorb
heat and carbon dioxide from the atmosphere.
Some glaciers on the perimeter of West Antarctica are receiving increased
heat from deep, warm
ocean currents, which melt ice from the grounding line,
releasing the brake and causing the glaciers to flow and shed icebergs into the
ocean more quickly.
According to the new findings, Earth may be able to significantly reduce global warming by
releasing some of the
heat through a «vent» in the cloud cover over the Pacific
Ocean.
Geysers and deep - sea vents are hydrothermal phenomena in which water,
heated and pressurized by molten rock, is
released through vents at the land surface or into the
oceans.
«When you remove sea ice cover, you remove insulation, so all the
ocean heat can be
released into the atmosphere above,» Serreze said.
Temperatures last year broke a 2015 record by almost 0.2 C (0.36 F), Copernicus said, boosted by a build - up of greenhouse gases in the atmosphere and by a natural El Nino weather event in the Pacific
Ocean, which
releases heat to the atmosphere.
The basic scenario goes as follows: Hurricanes — circular storms spinning around a region of low atmospheric pressure — are powered by energy
released by spiraling surface winds that draw
heat from the
ocean.
That could allow
heat from the
ocean to be
released into the atmosphere — causing a jump in atmospheric global warming, Trenberth says: «This could be a very important year.»
Linsley said the new results were «exciting,» suggesting that the «poorly understood, rapid rise» in surface temperature from 1910 to 1940 was, in part, «related to changes in trade wind strength and
heat release from the upper water column» of the Pacific
Ocean.
Through these vents, volcanic activity in Earth's interior
releases hot gases and dissolved minerals into the
ocean and
heats the water to temperatures of nearly 700 degrees Fahrenheit.
The joint NASA / NOAA / CNES / EUMETSAT Jason - 2 satellite measures sea surface height, which is especially useful in quantifying the
heat stored and
released by the
oceans during El Niño years.
Terrestrial hurricanes are powered by
heat released from warm
ocean surfaces.
Could the Arctic
Ocean heat enough in these circumstances to melt the clathrates locked underwater along the continental shelves
releasing even more massive amounts of methane?
«More
heat is trapped in the upper layers of the
ocean, where it can be easily
released back into the atmosphere,» Park said.
Scientists say the accumulation of
heat in the
oceans is the strongest evidence of how fast Earth is warming due to
heat - trapping gases
released by the burning of fossil fuels.
On shorter time scales, however, changes in
heat storage (i.e.,
ocean heat uptake or
release) can affect global mean temperature.
The
ocean heat content change is from this section and Levitus et al. (2005c); glaciers, ice caps and Greenland and Antarctic Ice Sheets from Chapter 4; continental
heat content from Beltrami et al. (2002); atmospheric energy content based on Trenberth et al. (2001); and arctic sea ice
release from Hilmer and Lemke (2000).
But as the radioactive elements decay into more stable ones, they stop
releasing heat and the interiors of these objects gradually cool, and any subsurface
oceans will eventually freeze.
There are also concerns that
oceans, which currently absorb more than 90 percent of the extra
heat being trapped by human greenhouse gas emissions, could eventually
release some of that back to the surface, speeding up the surface temperature rise.
During the fall, the
heat that was added to the
oceans gets
released into the atmosphere as sea ice reforms, and this added
heat is bound to change weather patterns somehow (this is a process known as «Arctic Amplification»).
There is a clear impact on global temperature, too, though the mechanisms are complex:
heat released from the
oceans; increases in water vapor, which enhance the greenhouse effect, and redistributions of clouds.
The amount
released is trivial compared to the
ocean's
heat content, or even the upper
ocean's
heat content.
The strong winds from the south can push the ice further north into the Central Arctic, exposing the open water and
releasing heat to the atmosphere from the
ocean.»
During La Niña events (with cold
ocean surface) the
ocean absorbs additional
heat that it
releases during El Niño events (when the
ocean surface is warm).
Is it not possible that the polar barometric events act as significant pipelines for the re-emission of the
ocean entrapped LW in the first three meters, by transporting the oceanic
heat content energy for stellar
release?
I acknowledge that temperature variations can vary over the earth's surface, and that
heat can be stored /
released by vertical processes in the atmosphere and
ocean.
Temporarily, you can also store
heat in the
ocean or
release it, but the scope for changes in global mean temperature through this mechanism is quite limited.
The immediate cause of the record - breaking warmth is a strong El Niño weather pattern, in which the
ocean releases immense amounts of
heat into the atmosphere.
With
ocean heat content, including the IPWP, running at record high levels (literally off the chart), how much energy is
released in this El Niño and how quickly it fills back in is of keen interest to me.
The
heat going into the
ocean is not going to be «
released to the atmosphere» any time soon — it is instead part of what will be the higher OHC in a warmer world.
My understanding of it is, is basically that every so often the equatorial
oceans get hot enough they blow away the clouds and
release heat into space.
The change in radiation balance is more
heating of the
oceans at one side (specifically high in the subtropics, as expected), but more
heat released at higher altitudes, thus somewhere acting as a net negative feedback to higher sea surface temperatures.
In any case,
heat releases from the Arctic sea floor do not get higher up in the water column than, typically, ~ 500-1000 m from the
ocean floor due to constantly mixing with ambient water on its way up (so - called entrainment).
The lag time effect refers to the effect of
heat stored in the
ocean and subsequently
released to warm land temperatures.
How can it get colder unless energy is being reflected back into space before it is absorbed /
released by the earth as
heat or the energy is being used to warm the
oceans to a greater depth.
One of the reasons for the lag is the delayed reaction of the surface waters of the
oceans to the absorption of
heat and it's ultimate contribution by
releasing this
heat back to the atmosphere.
For example: 1) plants giving off net CO2 in hot conditions (r / t aborbing)-- see: http://www.climateark.org/articles/reader.asp?linkid=46488 2) plants dying out due to
heat & drought & wild fires enhanced by GW (reducing or cutting short their uptake of CO2 &
releasing CO2 in the process) 3)
ocean methane clathrates melting, giving off methane 4) permafrost melting & giving off methane & CO2 5) ice & snow melting, uncovering dark surfaces that absorb more
heat 6) the warming slowing the thermohaline
ocean conveyor & its up - churning of nutrients — reducing marine plant life & that carbon sink.
Lawrence, yes, the accumulation of
heat in the
oceans is the primary metric of global warming, but it's distributed unevenly, and we don't know how much of it will be diluted in cold waters and how much, when and where it will be
released to the atmosphere.
The
ocean cycle that had been
releasing more
heat is bound to continue trending back to average.
The same style of thinking has established that it could take just 45 days for the
heat from
released carbon dioxide to outpace the initial combustion that
released it, and that at current fossil fuel emission rates, all the
ocean's coral reefs would be at risk within this century.
Others include, the role of the Sun (being the main
heat source), the vast
oceans which cover over 70 % of the Earth's surface (and the natural factors which determine the storage and
release of CO2 back into the atmosphere), water - vapour being the dominant greenhouse gas comprising 98 % of the atmosphere, the important role of low - level clouds which is thought to be a major factor in determining the natural variation of climate temperatures (P.S. Significantly, computer - models are unable to replicate cloud - formation and coverage — which again — injects bias into model).
Given that the most of the melting that goes on is from the underneath (i.e. under the water) and
ocean heat content is at modern highs, and the
oceans have even
released a bit less energy than average over the past 15 years, it is not a coincidence that ice would de line even faster during this period.