The persistent upwelling of cold water in the eastern tropical Pacific would have reduced cloud cover there, via reduced oceanic evaporation, and thus allowed more of the sun's energy to enter the tropical ocean - this would have aided
the ocean warming process, as generally the case when the tropical ocean is cooler - than - normal.
Not exact matches
The simulations also suggest that the removal of excess carbon dioxide from the atmosphere by natural
processes on land and in the
ocean will become less efficient as the planet
warms.
They predicted that the ice age had slowed
ocean circulation, trapping CO2 deep within it, and that
warmer temperatures reversed this
process.
As global
warming affects the earth and
ocean, the retreat of the sea ice means there won't be as much cold, dense water, generated through a
process known as oceanic convection, created to flow south and feed the Gulf Stream.
Beneath an ice layer about 10 to 15 miles (15 - 25 kilometers) thick, the moon is thought to harbor a liquid water
ocean, possibly
warmed by geologic
processes originating in the planet's core.
The findings, published online Feb. 27 in the journal Nature Geoscience, will help inform scientists about the
processes influencing global
warming in the western tropical Pacific
Ocean.
In some parts of the Arctic
Ocean, the shallow regions near continents may be one of the settings where methane hydrates are breaking down now due to
warming processes over the past 15,000 years.
«A lot of what we are seeing right now in the coastal regions is that
warming ocean waters are melting Antarctica's glaciers and ice shelves, but this
process may just be the beginning,» Shevenell said.
In the study, the researchers use an ice -
ocean model created in Bremerhaven to decode the oceanographic and physical
processes that could lead to an irreversible inflow of
warm water under the ice shelf — a development that has already been observed in the Amundsen Sea.
While calving is a natural
process, it can be driven into overdrive by the
warm ocean waters that are lapping away at the ice shelves that fringe Antarctica.
The report found that
ocean warming is affecting a multitude of
ocean processes, including breeding and migration patterns of
ocean species such as plankton, whales and fish.
«Understanding such
processes is especially important today since oxygen in the
ocean is decreasing, largely due to the
warming of
ocean waters driven by climate change,» said the study's lead author Andrew Margolin, a postdoctoral researcher at the College of William & Mary's Virginia Institute of Marine Science and an alumnus of the UM Rosenstiel School.
The accessibility of a large numbers of tidewater glaciers, subject to
warming conditions, provides a unique opportunity to observe
processes and enable more accurate predictions of sea level response to
ocean warming around Antarctica.
For naysayers who may claim that natural
ocean processes only explain variability, and not overall trends (
warming), we have this:
These
processes included dust deposition, and
ocean acidification and
warming, which were shown to have a significant impact on oceanic phytoplankton growth, cell size and primary productivity, biological N2 fixation, phytoplankton distribution and community composition.
The Arctic is
warming more than twice as fast as the rest of the planet, because as ice melts at the top of the world, there is less of it to reflect sunlight back into space, so more of it is absorbed by
ocean waters; more absorbed sunlight means even
warmer temperatures, which means more ice melt a circular
process known as Arctic amplification.
Now, this
process can only take place if the
ocean is
warmer than the atmosphere.
The long lifetime of the fossil fuel carbon in the climate system and the persistence of
ocean warming for millennia [201] provide sufficient time for the climate system to achieve full response to the fast feedback
processes included in the 3 °C climate sensitivity.
I love
warm and hearty soups in the fall and winter and now that my dear hubby is working in a seafood
processing warehouse we get A LOT of fresh from the
ocean seafood!
Seems this might hold for larger scale events, such as the arctic ice melting (i.e., there would be more
warming in the arctic
ocean in our current times, except some of the «
warming» energy is going into the melting
process rather than
warming).
This
process together with a
warming ‐ induced decreased solubility of O2 and a reduction in
ocean ventilation might lead to expanding
ocean hypoxia (Yamamoto et al., 2014).
``... as sea ice melts, Arctic waters
warm, greatly altering
ocean processes, which in turn have an effect on Arctic and global climate, says Michael Steele, senior oceanographer at the University of Washington, Seattle.
I particularly enjoyed the slides that, when combined (1) provided an overview of hotter and cooler CO2 molecules as it relates to how they are seen from outer space and from profile — because this will make it easier for me to explain this
process to others; (2) walked through the volcanic and solar activity vs assigning importance to CO2 changes — because this another way to help make it clearer, too, but in another way; (3) discussed CO2 induced
warming and
ocean rise vs different choices we might make — because this helps point out why every day's delay matters; and (4) showed Figure 1 from William Nordhaus» «Strategies for Control of Carbon Dioxide» and then super-imposed upon that the global mean temperature in colors showing pre-paper and post-paper periods — because this helps to show just how far back it was possible to make reasoned projections without the aid of a more nuanced and modern understanding.
If as a result of physical
processes (such as El Nino)
warmer water reaches the surface of the
ocean, so less heat is conducted from the atmosphere into the
ocean and the atmopsheric temperature will therefore increase — on a much shorter — comparatively instantaneous — timescale.
Well, for one thing, it's very difficult to understand how a
warming process dependent on airborne greenhouse gases could suddenly, over a period of a year or two, shift heat from the atmosphere to the
oceans.
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.
What this means is that the overall rate of absorption of CO2 by the
oceans is a complex function of numerous
processes — biological, chemical and physical — whose individual contributions are still a matter of active scientific research (and which are certainly changing as the planet
warms).
Reefs: Natural temperature - limiting
processes may prevent
ocean surface waters from
warming past levels dangerous to corals, at least in some important regions, according to a study being published in Geophysical Research Letters on Saturday.
In fact if a strong self sustaining unforced
warming of the
oceans as we have seen, around 0.8 W / M ^ 2 does exist, the climate of the earth would be in the
process of an unstable runaway condition.
So even if increased infrared radiation caused by man does try to
warm the surface of the
oceans those
processes will increase immediately and neutralise at least the majority of any extra
warming from additional down welling anthropogenic infrared radiation.
This makes sense since
warming the surfaces of the world's
oceans would tend to decrease their CO2 - carrying - capacity, and this would be a slow
process due to the buffering effects of the specific heat capacity of these large bodies of water.
You continued, «In fact if a strong self sustaining unforced
warming of the
oceans as we have seen, around 0.8 W / M ^ 2 does exist, the climate of the earth would be in the
process of an unstable runaway condition.»
The ENTIRE
warming is to be found within those three steps, explained in full by natural (
ocean)
processes.
But that
process is limited for both: an increase of CO2 means more (partial) pressure in the atmosphere, which limits the emissions from the
warm oceans and increases the absorption of the cold
oceans.
For example, atmospheric carbon dioxide grew by approximately 30 % during the transition from the most recent cold glacial period, about 20,000 years ago, to the current
warm interglacial period; the corresponding rate of decrease in surface
ocean pH, driven by geological
processes, was approximately 50 times slower than the current rate driven largely by fossil fuel burning.
GOAL 2: Project a diminished arctic sea - ice cover with multiple
warming scenarios and to examine key linkages among atmospheric forcing, sea - ice
processes, and oceanic
processes in an ice - diminished Arctic
Ocean and the adjacent seas.
Over the 5 long term, this
warming conforms to a complex trend that can be simplified as a monotonic curve, but the actual pathway is steplike... this rules out gradual
warming, either in situ in the atmosphere or as gradual release from the
ocean, in favour of a more abrupt
process of storage and release.
And that's where I'm heading now, to take a look at what happens in the
oceans near Greenland's eastern and southwestern coastlines, the
processes that make worldwide climate flip so abruptly from
warm - and - wet into cool - dry - dusty - windy.
A simple model of this
process is an increased vertical circulation in the
ocean, such as an enhanced PDO, that brings cooler water to the surface faster and sequesters the
warmer water faster.
Is it not obvious to you that if the
oceans can «hide» the heat from us now, only to release it later, that the same
process may have contributed to the late 20th century
warming that has so excised climate science?
The
process of evaporation also requires energy from heat, and the
warmer the temperatures are in the upper
ocean and at the
ocean surface, the more energy is available.
Similarly, if freezing of ice & snow was supplying heat that could
warm the
oceans - hard to imagine what the
process might be but theoretically possible so we need to consider it - this would require the freezing of around 12,500 Billion tonnes of extra ice per year.
Since ENSO is a coupled
ocean - atmosphere
process, I have presented its impact on and the inter-relationships between numerous variables, including sea surface temperature, sea level,
ocean currents,
ocean heat content, depth - averaged temperature,
warm water volume, sea level pressure, cloud amount, precipitation, the strength and direction of the trade winds, etc..
Monitoring the
ocean to its full depth with consistently calibrated instrumentation all over the globe — and doing so for decades at a time — is critical to track how global
warming impacts the
oceans» ecosystems and biogeochemical
processes.
Similar
processes in the tropical South Atlantic also contribute to the
warming of the North Atlantic, since
ocean currents carry the
warmer - than - normal surface waters from the South Atlantic to the North Atlantic.
The point here is, that the prerequisite and tell - tale sign of this particular
ocean -
warming process, is
warming of the atmosphere.
AGW climate scientists seem to ignore that while the earth's surface may be
warming, our atmosphere above 10,000 ft. above MSL is a refrigerator that can take water vapor scavenged from the vast
oceans on earth (which are also a formidable heat sink), lift it to cold zones in the atmosphere by convective physical
processes, chill it (removing vast amounts of heat from the atmosphere) or freeze it, (removing even more vast amounts of heat from the atmosphere) drop it on land and
oceans as rain, sleet or snow, moisturizing and cooling the soil, cooling the
oceans and building polar ice caps and even more importantly, increasing the albedo of the earth, with a critical negative feedback determining how much of the sun's energy is reflected back into space, changing the moment of inertia of the earth by removing water mass from equatorial latitudes and transporting this water vapor mass to the poles, reducing the earth's spin axis moment of inertia and speeding up its spin rate, etc..
Evaporation is a Endothermic
process which causes a COOLING effect, so the first stage of H2O absorption MUST causes a slight cooling of the
oceans which will offset the slight
warming of the initial CO2.
I'm very convinced that the physical
process of global
warming is continuing, which appears as a statistically significant increase of the global surface and tropospheric temperature anomaly over a time scale of about 20 years and longer and also as trends in other climate variables (e.g., global
ocean heat content increase, Arctic and Antarctic ice decrease, mountain glacier decrease on average and others), and I don't see any scientific evidence according to which this trend has been broken, recently.
Then, especially when there is excessive cloud cover over the
oceans, the Sun's energy absorbed above the clouds can actually make its way down to the
ocean surface (and below)
warming the
oceans by non-radiative
processes, not by direct solar radiation which mostly passes through the thin surface layer and could barely raise the mean temperature of an asphalt paved Earth above -35 C.