At night, that
heat warms the land, making conditions ideal for nocturnal precipitation.
Not exact matches
In the «B4WarmED» (Boreal Forest
Warming at an Ecotone in Danger) experiment, scientists are
heating various plots of boreal forest
land artificially by 3.4 °C.
Just how rapidly the oceanic
heat will resurface to
warm the
land is «something that we struggle with,» said Scripps's Gille.
«There is evidence for global
warming on a number of levels, and the planet has been
warming, the oceans have been taking up
heat, sea levels have been rising,
land snow has been melting, glaciers are melting, and all these other things, so the reality of global
warming is uncontroversial.»
That
heat tends to
warm the far North Atlantic and thus keeps the
land downwind of it — Western Europe —
warmer than it would otherwise be.
What scientists discovered in 2014 is that since the turn of the century, oceans have been absorbing more of global
warming's
heat and energy than would normally be expected, helping to slow rates of
warming on
land.
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.
When all the
heat accumulating in the oceans,
warming the
land and atmosphere and melting ice is tallied up, we see that global
warming is still happening.
By combining the ocean
heating rates, TOA observations (figure 4) and other energy storage terms (
land, atmosphere
warming and ice melt), the authors calculated Earth's energy imbalance from January 2001 - December 2010 to be 0.5 (± 0.43) W / m2.
Eventually some of the
heat is released to the atmosphere and
warms adjacent
land masses.
From 1992 to 2003, the decadal ocean
heat content changes (blue), along with the contributions from melting glaciers, ice sheets, and sea ice and small contributions from
land and atmosphere
warming, suggest a total
warming (red) for the planet of 0.6 ± 0.2 W / m2 (95 % error bars).
One of the most plausible reasons for the recent slowdown in
warming is that the deep ocean has been acting as a
heat sink, taking up more
warming than the
land has in recent years.
You've got the radiative physics, the measurements of ocean temperature and
land temperature, the changes in ocean
heat content (Hint — upwards, whereas if if was just a matter of circulation moving
heat around you might expect something more simple) and of course observed predictions such as stratospheric cooling which you don't get when
warming occurs from oceanic circulation.
The gasses, released by burning of fossil fuels and
land clearing among other factors, trap
heat in the atmosphere and
warm Earth's surface.
There is no real life proof that «races» differ in any meaningful way besides minor ecological and geographical adaptations and evolutionary differences like my long thin nose to pick a rather vulgar example, which clearly changed from my African forefathers due to their migration to colder climates, thus allowing the more efficient
heating of the air inhaled, to avoid hypothermia with the minor drawback of restricting the flow of air and thus reducing the amount that can be inhaled compared to those in
warmer lands.
Some
heat is being transferred to the deeper ocean by wind changes, reducing the rate of increase in the upper layer, which reduces the
warming rate on
land.
The
land and sea
warm, the infra - red from them increases and the oxygen, nitrogen and water vapour all carry more
heat upwards by convection.
Now, if we want to move further into the future, we have to include the oceans, which are also absorbing
heat from the atmosphere — so if we
warm the atmosphere, we
warm the oceans (as well as the
land surface).
It isn't an isolated conclusion from a single study, but comes from an assessment of the changing patterns of surface and tropospheric
warming, stratospheric cooling, ocean
heat content changes,
land - ocean contrasts, etc. that collectively demonstrate that there are detectable changes occurring which we can attempt to attribute to one or more physical causes.
These wildfires release soot into the atmosphere, which accelerates the rate of melting of glaciers, snow and ice it
lands upon, which can lead to less reflectivity, meaning more of the sun's
heat is absorbed, leading to more global
warming, which leads to even more wildfires, not to mention greater sea level rise, which is already threatening coastal areas around the world.
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).
Within reason, a
heat deficit in the ocean is made up by a larger transfer of energy from ocean to
land, which has the side - effect of producing amplification of
land warming.
sheesh 2 DEGREES just look at the s ** t we are getting at 0.8 degrees Its like goodbye coral reefs, goodbye amazon rainforest, goodbye himalayan glaciers that provide water to 40 % worlds population (lot of poeple in china), goodbye east india monsoon rains needed to grow crops, hello more droughts, hello more forest fires, hello more
heat waves, hello more stronger huricanes / typhones / cyclones, hello more floods (because
warmer oceans have even more water evaporated from them turned into clouds and blown over
land so even more rain pours down at once), hello more jellyfish (they thrive in acidified oceans because of CO2 absorbtion).
The surface
heat capacity C (j = 0) was set to the equivalent of a global layer of water 50 m deep (which would be a layer ~ 70 m thick over the oceans) plus 70 % of the atmosphere, the latent
heat of vaporization corresponding to a 20 % increase in water vapor per 3 K
warming (linearized for current conditions), and a little
land surface; expressed as W * yr per m ^ 2 * K (a convenient unit), I got about 7.093.
The Diffenbaugh report is saying if global
warming produces 35
heat peak days during summer in CA premium viticultural
lands, the wine will be inferior quality; that is right.
@ 48 If your speculation is correct, I assume that another consequence would be that, if / when concentrations of greenhouse gases start to drop, corresponding reductions in surface ocean /
land temperatures would take place at a much slower rate than would otherwise be the case: the surplus
heat stored in the deep ocean will gradually make its way to the ocean surface, and continue to
warm the atmosphere for decades, if not longer.
It was said above that the ocean is
warming just like the
land (& air and ice sheets / glaciers), that the
heat in the ocean dwarfs that in the
land and air, that the
warming is due to the net solar imbalance (solar in, less LW out - no mention of CO2.)
The lag time effect refers to the effect of
heat stored in the ocean and subsequently released to
warm land temperatures.
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.
It is possible for the sea to
warm faster than the
land since
heat comes into the Arctic from the Atlantic.
Warming over
land can have multiple effects, including melting of mountain glaciers, spread of deserts in continental interiors, greater flooding, more frequent
heat waves and other extreme weather patterns.
Here we would like to try to distinguish between
warming in the nocturnal boundary layer due to a redistribution of
heat and
warming due to the accumulation of
heat... It is likely that the observed
warming in minimum temperature, whether caused by additional greenhouse forcing or
land use changes or other
land surface dynamics, is reflecting a redistribution of
heat by turbulence - not an accumulation of
heat.
If the air was much colder than the water, as it would be if it had just blown over from the
land, then: a) If the rate of
heat loss from the air was smaller than the rate of
heat gain from the water, the air would
warm.
In addition the
warming oceans — which hold
heat for longer than
land masses — generate pathways for
warm air invasions of the Arctic during Winter time.
A one - degree global change is significant because it takes a vast amount of
heat to
warm all the oceans, atmosphere, and
land by that much.
The extremes of the 1930's and 1950's are not attributable to greenhouse
warming and are associated with natural climate variability (and in the case of the dustbowl drought and
heat waves, also to
land use practices).
The
land in turn creates
warmer rivers which then enter the ocean and follow the bottom out to deep water so for diving buoys that don't come near shore the
heat is not observed passing through the open ocean surface.
This
warming can be seen in measurements of troposphere temperatures measured by weather balloons and satellites, in measurements of ocean
heat content, sea surface temperature (measured in situ and by satellites), air temperatures over the ocean, air temperature over
land.
One consequence of the ocean's ability to absorb more
heat is that when an area of ocean becomes
warmer or cooler than usual, it takes much longer for that area to revert to «normal» than it would for a
land area.
Warming accelerates
land - surface drying as
heat goes into evaporation of moisture, and this increases the potential incidence and severity of droughts, which has been observed in many places worldwide (Dai 2011).
That and «man made» contribution to
warming comprises several factors besides CO2 —
land use changes, Urban
Heat, etc are all «man made contributions» to
warming.
The global
warming theory has been based all along on the idea that the Atlantic and Pacific Oceans would absorb much of the greenhouse
warming caused by a rise in man - made carbon dioxide, then they would let off that
heat and
warm the atmosphere and the
land.
The main «warmist» explanation for the recent hiatus in
land surface
warming is that the
heat is going into the oceans.
The confusion on this subject lies in the fact that only about 2 percent of global
warming is used in
heating air, whereas about 90 percent of global
warming goes into
heating the oceans (the rest
heats ice and
land masses).
While record - breaking
warming is being felt on
land, most of the extra
heat energy being trapped in our atmosphere is being stored deep into our oceans causing rapid changes and the decline of key ecosystems.
I find it hard to believe that the
heat «decided» to stop
warming the
land surface area and focus primarily on the ocean.
This new report, according to the New York Times, will assert that expected
warming in this century will lead to wide - spread melting of
land ice, extreme
heat waves, difficulty growing food and massive changes in plant and animal life, probably including a wave of extinctions.
Water takes longer to
heat up and cool down than does the air or
land, so ocean
warming is considered to be a better indicator of global
warming than measurements of global atmospheric temperatures at the Earth's surface.
Adding it all up, scientists estimate the total amount of
heat warming the oceans,
land, and atmosphere and melting the ice is the equivalent of four Hiroshima atomic bombs worth every second.
Why did the
heat suddenly stop
warming the
land surface?