Dry land has a far lower heat
capacity than our oceans.
The variations are stronger because of the northern hemisphere's larger fraction of land, which has a lower heat
capacity than the ocean and thus responds more quickly to variations.
Not exact matches
He added that scientists need to monitor carbon storage and possible temperature increases in
oceans at depths greater
than 2 kilometers in addition to adding biogeochemical sensing
capacity.
The observed fact that temperatures increases slower over the
oceans than over land demonstrates that the large heat
capacity of the
ocean tries to hold back the warming of the air over the
ocean and produces a delay at the surface but nevertheless the atmosphere responds quit rapidly to increasing greenhouse gases.
My research indicates that the Siberian peat moss, Arctic tundra, and methal hydrates (frozen methane at the bottom of the
ocean) all have an excellent chance of melting and releasing their stored co2.Recent methane concentration figures also hit the news last week, and methane has increased after a long time being steady.The forests of north america are drying out and are very susceptible to massive insect infestations and wildfires, and the massive die offs - 25 % of total forests, have begun.And, the most recent stories on the Amazon forecast that with the change in rainfall patterns one third of the Amazon will dry and turn to grassland, thereby creating a domino cascade effect for the rest of the Amazon.With co2 levels risng faster now that the
oceans have reached carrying
capacity, the
oceans having become also more acidic, and the looming threat of a North Atlanic current shutdown (note the recent terrible news on salinity upwelling levels off Greenland,) and the change in cold water upwellings, leading to far less biomass for the fish to feed upon, all lead to the conclusion we may not have to worry about NASA completing its inventory of near earth objects greater
than 140 meters across by 2026 (Recent Benjamin Dean astronomy lecture here in San Francisco).
The
ocean has a much higher heat
capacity than land and thus anomalies tend to vary less over monthly timescales.
This training programme is a flagship activity of IOI together with that delivered from the University of Dalhousie in Canada and builds upon the more
than 35 years» experience of the International
Ocean Institute in conducting training and capacity building programmes on ocean govern
Ocean Institute in conducting training and
capacity building programmes on
ocean govern
ocean governance.
We have been consuming natural capital far faster
than it regenerates, whether it's fossil fuels, fish, forests, wetlands, or the
capacity of the
oceans and other sinks to take up greenhouse gases.
It seems clear to me that the
ocean surface warming is being suppressed by its large heat
capacity, while the land has very little heat
capacity and is not being suppressed (rather
than amplified).
But the atmosphere's heat
capacity (= thermal inertia) is much less
than the
oceans.
The first issue is that because of the large heat
capacity of the southern
oceans, warming trends are in general going to be smaller
than in the northern hemisphere.
Heat accumulation as in (4) can take decades, because the heat
capacity of the
oceans is far larger
than that of the atmosphere.
The pace of the completely man - made CO2 increase (by now the CO2 concentration is higher
than at any time in the past three million years) leads to a rapid acidification of the world's
oceans, because it overcomes the buffer
capacity of the
oceans.
«As a result,
ocean waters deeper
than 500 meters (about 1,600 feet) have a large but still unrealized absorption
capacity... As emissions slow in the future, the
oceans will continue to absorb excess CO2... into ever - deeper layers... eventually, 50 to 80 percent of CO2 cumulative emissions will likely reside in the
oceans»
Re 157 Mark, your land -
ocean heat
capacity argument appears to suggest that the SH would be warmer
than the NH, because of more efficient energy capture by the
oceans.
Overall, we expect land temperatures to rise substantially faster
than ocean temperatures because of the lower heat
capacity on land.
14 The
Oceans and Climate
Ocean water has a higher specific heat
capacity than land.
The high specific heat
capacity of
ocean water causes coastal land to have a milder climate
than inland areas.
«
Ocean warming is very important compared to atmospheric warming because water has a much larger heat
capacity than air,» co-author Jianjun Yin said.
Since salt water has a higher specific heat
capacity than land,
ocean temperatures increase and decrease more slowly
than land temperatures.
In looking at this of course, we must take into account that overall the thermal inertia and overall energy storage
capacity of the troposphere is dwarfed by the
oceans and far more variable
than the
oceans, so looking at the energy of the troposphere and comparing it to Earth's overall reservoir of non-tectonic energy is much like weighing the flee on a dog's back to see how much it adds to the weight of the dog.
Considering the heat
capacity of the
oceans is about 1,100 times greater
than the air, would not even a modest change in cloud cover affect the radiative balance with far greater magnitude
than a parts - per - million change in an atmospheric gas constituent?
Since most of it goes into the
ocean the relevant heat
capacity is that of the
ocean, which is several orders of magnitude higher
than the atmosphere.
that.000002 the US is responsible for (termites contribute 2.5 times more co2
than man, which would mean 25 times more
than the US) is in air which has 1 / 1000th the heat
capacity of the
ocean, which controls the whole shooting match and is now going into its cooling phases after being in the warming phases the past 20 - 30 years.
The heat
capacity of the
ocean is 1,000 x greater
than the atmosphere,
ocean is over 70 % of earth's surface and earth is warmed by radiation from sun and GHE.
This would suggest that the
oceans»
capacity to absorb CO2 is greater
than the Revelle effect suggests and that, perhaps, the rate of
ocean acidification is much less
than that currently postulated, bearing in mind other factors are at play.
Have no idea who the «climate clique» is, but the greater energy storage
capacity and greater thermal inertia of the
oceans combined with the fact that net heat flow is always from
oceans to atmosphere would dictate that the
oceans would show more consistent long - term warming
than the atmosphere.
I've long wondered why the
ocean is warming at about the same rate as the atmosphere but has more
than 1000x the heat storage
capacity.
Thanks to their large heat
capacity, the
oceans absorb warming caused by human activities, and more
than 90 % of the Earth's extra heat from global warming is absorbed by them.
Land warms quicker
than ocean with the same change in radiative input: specific heat
capacity being the main reason.
According to Maier - Reimer & Hasselmann (1987) the borate system also increases the
ocean storage
capacity for CO2 by more
than 20 % over an
ocean with the carbonate - system alone.
The geochemical equilibrium system anorthite CaAl2Si2O8 — kaolinite Al2Si2O5 (OH) 4 has by the pH of
ocean water a buffer
capacity which is thousand times larger
than a 0.001 M carbonate solution (Stumm & Morgan, 1970).
As carbon dioxide is acidic, the surface waters of the
oceans could become more acidic
than ever before in five million years, reducing the
capacity of shell - forming species to form shells and affecting the marine food chain.
Given its large mass and high heat
capacity, the ability of the
Ocean to absorb heat is 1000 times larger
than that of the atmosphere.
At the surface, the variability of temperatures over land is much greater
than that over the
oceans (Fig. 4), which reflects the very different heat
capacities of the underlying surface and the depth of the layer linked to the surface.
As the heat
capacity of the
oceans is greater
than air over land, migration is more prominent over land.
The combination of all these forces — consumption, deforestation, agriculture and food, emissions — underscores more
than ever the value of a comprehensive measure like the Ecological Footprint that takes into account all competing demands on the biosphere, including CO2 emissions and the
capacity of our forests and
oceans to absorb carbon.
This suggests that terrestrial ecosystems and the
oceans have a much greater
capacity to absorb CO2
than had been previously expected.
Farmer Dave @ 24: Last year I noted that the deep
ocean's heat
capacity is much larger
than the cryosphere's.
Can't speak for Dr Spencer but my understanding is that most of this would be measured in
Ocean terms where the time lags are longer (and heat
capacity greater)
than those for land.
For centuries, it has been known that land warms or cools faster
than the
oceans — the reason is that the latter exhibits much greater thermal inertia due to its enormous heat
capacity, and also because evaporation moderates
ocean warming.
We also know that the heat
capacity of seawater is so much greater
than that of air that the top three meters of global
ocean have the same
capacity as the entire planetary atmosphere, and that the «mixing layer» being discussed is at least thirty times that depth.
This anorthite feldspar ↔ kaolinite buffer has a buffer
capacity 1000 times larger
than the
ocean's carbonate buffer.
Since we know that ECS must be greater
than TCR (since
ocean heat
capacity is surely positive), and that F&G 2006 used a completely different method that G&F 2008, isn't it possible to statistically constraint the ECS result from F&G 2006 (or any other ECS estimate) with the PDF of TCR from G&F 2008?
Since the
ocean's heat
capacity is so much more
than the land / atmosphere combination, this imbalance will continue until it reaches the ratio of the total heat
capacities, which is close to 1000 to 1.
Surface temperatures can show short - term cooling when heat is exchanged between the atmosphere and the
ocean, which has a much greater heat
capacity than the air.
Due to the
ocean's buffering
capacity and the biological pump, as seen in the graph below, the upper
ocean can experience upwelling that drives CO2 levels to 3 times higher
than what would be expected from equilibrating with the atmosphere.
iii) The thermal
capacity of the
oceans is vastly greater
than that of the air and incoming solar energy penetrates the
oceans by up to 200 meters.
Note: LOTI provides a more realistic representation of the global mean trends
than dTs below; it slightly underestimates warming or cooling trends, since the much larger heat
capacity of water compared to air causes a slower and diminished reaction to changes; dTs on the other hand overestimates trends, since it disregards most of the dampening effects of the
oceans that cover about two thirds of the Earth's surface.
There (starting with section III B — «Model 2») I used a «thermal inertia coefficient» rather
than a fixed heat
capacity — that allows a coupling of both
capacity and thermal diffusivity / conductivity effects at once for a more realistic treatment of heat flow below - ground (or
ocean).