Not exact matches
«It's
very cool, because water can go underground, it can move around the
ocean, it can change from ice to liquid and runoff, but it can't hide its
mass from us,» says Watkins.
«Starting back in the 1960s, for various reasons people claimed there was
very little continental
mass, and so there wasn't enough weathering to affect the chemistry of the
ocean.
«What is most interesting is that there are big shifts in the surface
mass balance that occur from only
very small changes in radiative forcing,» said Ullman, who is in OSU's College of Earth,
Ocean, and Atmospheric Sciences.
«The lineage has been around for hundreds of millions of years, but without the
mass extinction event 66 million years ago, it is
very likely that the
oceans wouldn't be dominated by the fish we see today.»
The extent of the ice in the Arctic has always been
very uncertain but, through this work, we show how the sea ice in the Arctic
Ocean developed before all the land - based ice
masses in the Northern Hemisphere were established,» Jochen Knies explains.
Under all RCP scenarios the rate of sea level rise will
very likely exceed that observed during 1971 — 2010 due to increased
ocean warming and increased loss of
mass from glaciers and ice sheets.
then would increase the heat flow atmosphere - >
ocean, leading to lower (dynamic) equilibrium temperature in the atmosphere which of course occurs
very fast, as the thermal
mass of the atmosphere is
very low compared to the net energy throughput.
# 192 «For example a strengthening of wind over some oceanic region http://web.science.unsw.edu.au/~matthew/nclimate2106-incl-SI.pdf then would increase the heat flow atmosphere - >
ocean, leading to lower (dynamic) equilibrium temperature in the atmosphere which of course occurs
very fast, as the thermal
mass of the atmosphere is
very low compared to the net energy throughput.»
This is because so far much of the added warmth has been absorbed by the
ocean, which warms
very slowly due to its enormous
mass.
It stands to reason that the
oceans haven't been that warm in a while but since the average temperature of the whole
mass of water is so dependent on circulation (it's only the surface temperature that's constrained by its interactions with the atmosphere and space), I suppose a plausible history of that particular value would be
very hard to reconstruct.
Anthropogenic forcing, resulting in thermal expansion from
ocean warming and glacier
mass loss, has
very likely contributed to sea level rise during the latter half of the 20th century.
They have to be quick to react, because different
masses of water are often
very different in salinity, pH, DIC, and alkalinity... if the
ocean creatures couldn't adapt
very quickly to the shock of some storm - or current - driven new water
mass coming through the area where they live, they'd have gone extinct millennia ago.
bozzza - The differences in the Arctic are perhaps 1/4 the
ocean thermal
mass as global
ocean averages, small overall size (the smallest
ocean), being almost surrounded by land (which warms faster), more limited liquid interchanges due to bottlenecking than the Antarctic, and
very importantly considerable susceptibility to positive albedo feedbacks; as less summer ice is present given current trends, solar energy absorbed by the Arctic
ocean goes up
very rapidly.
The
mass balance is a
very solid argument, as what is emitted by humans doesn't disappear by magic and is added to the atmosphere, even if one second later some of the human CO2 is absorbed by plants or by the
oceans, that is at the cost of natural CO2 which should have been used instead.
«It is
very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all Representative Concentration Pathway (RCP) scenarios due to increases in
ocean warming and loss of
mass from glaciers and ice sheets.
Interestingly enough, if you correct that first graph in this post for seasonal effects (you know, plants growing in the spring, dying off in the fall), and the fact that about half (by
mass balance) of our emissions are absorbed by
ocean and plant sinks, those two lines will track each other
very well.
Tomorrow we'll pay attention to that
very interesting new study about clouds — a bombshell we think — but today we have another one that should serve as a foundation to scientific thinking about climate forcing, namely the suggestion that «not all climate forcers are equal» — equal in the way they act as a cooling or warming force, considering important factors like time scale and the geographical characteristics of a planet with a 3D atmosphere and a northern hemisphere with land
masses and a southern hemisphere with just mainly a lot of
oceans.
«Combining the evidence from
ocean warming and
mass loss of glaciers we conclude that it is
very likely that there is a substantial contribution from anthropogenic forcing to the global mean sea level rise since the 1970s.»
Given the
ocean's huge thermal
mass, it takes a
very long time to warm it up.
The extent of the ice in the Arctic has always been
very uncertain but, through this work, we show how the sea ice in the Arctic
Ocean developed before all the land - based ice
masses in the Northern Hemisphere were established,» Jochen Knies explains.
Elevated sea temperatures drive impacts such as
mass coral bleaching and mortality (
very high confidence), with an analysis of the Coupled Model Intercomparison Project Phase 5 (CMIP5) ensemble projecting the loss of coral reefs from most sites globally by 2050 under mid to high rates of
ocean warming (
very likely).
I said: - 3oC warmer
oceans =
mass reef death - 3oC warmer earth =
very large sea level rise - acidic
oceans are threat to marine life You say this is only based on models.
I'd call Arctic sea ice
mass a drop in the bucket compared to
ocean volume but that's not accurate unless it's a
very big bucket.
Indeed, the combination of a 10 degree temperature rise and the
ocean acidification from the increased CO2 levels that a 10 degree rise implies, could
very well lead to the
mass extinction of most life on Earth.
However, the thermal
mass of the troposphere is
very small compared to the thermal
mass of the
oceans so it would seem that it would take a long time for the
ocean temperature to increase in a significant manner by this method.
«I» say that because of my steadily reducing concentration of left - over physical
mass, as it / I drifted lazily through the Trent - Severn Waterway System, into Lake Ontario and thereafter down the Saint Lawrence River and out into the
oceans, that after a few decades I would finally have been a member of the
very few who have travelled the world... for free!