Warmer atmospheric air means more water vapor, which is itself a greenhouse gas, exacerbating the problem.
Not exact matches
In all regions, the researchers attributed some of the increase in
atmospheric ammonia to climate change, reflected in
warmer air and soil temperatures.
The North Atlantic Oscillation, a large - scale natural weather cycle, went into a phase in which summer
atmospheric conditions favored more incoming solar radiation and
warmer, moist
air from the south.
The researchers found that large - scale features of
atmospheric circulation — in particular, the strength and position of the Aleutian Low, a semi-permanent, subpolar area of low pressure located in the Gulf of Alaska near the Aleutian Islands — largely determined the timing of snowmelt during spring in Alaska, by either facilitating or inhibiting the transport of
warm, moist
air into the region.
Beyond basic subjects such as climate and weather, this site from the U.K. Department of Environment, Food & Rural Affairs covers a wide range of pressing
atmospheric science issues including acid rain,
air quality, climate change, global
warming and ozone depletion.
Because
air temperature significantly alters
atmospheric dynamics, which in turn affects moisture transport, scientists speculate that this increase of high altitude moisture may be tied to global
warming.
In a
warming world,
atmospheric water vapour content is expected to rise due to an increase in saturation water vapour pressure with
air temperature.
That unusually
warm air can contribute to a «bulge» effect to the
atmospheric pressure controlling how cold
air flows, according to Overland, who works at NOAA's Pacific Marine Environmental Laboratory.
The national average peak is June 12, but the peak in particular regions can be anywhere from early May to early July, when
warm, moist
air from over the Gulf of Mexico can venture northward and clash with other
air masses, creating an unstable
atmospheric environment.
And it finds that, while this winter's unusually strong Arctic Oscillation - which funnels cold northern
air to the East Coast and pulls
warm mid-latitude
air up to the Arctic - is predicted as
atmospheric carbon dioxide levels rise, seasonal temperature anomalies associated with it aren't enough to blunt long - term
warming trends.
As a result of
atmospheric patterns that both
warmed the
air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.
Because the vast plateau at such altitudes absorbs a huge amount of solar radiation, the
atmospheric layer above it in summer is much
warmer than
air at similar elevations over lower land or the oceans.
All that extra heat in the Pacific
warms the
air above, leading to more rising
air than normal in that region, which affects the global
atmospheric circulation.
By analyzing global water vapor and temperature satellite data for the lower atmosphere, Texas A&M University
atmospheric scientist Andrew Dessler and his colleagues found that
warming driven by carbon dioxide and other gases allowed the
air to hold more moisture, increasing the amount of water vapor in the atmosphere.
More than 90 % of global
warming heat goes into
warming the oceans, while less than 3 % goes into increasing the
atmospheric and surface
air temperature.
There's also a tendency for some people just to concentrate on
atmospheric or surface
air temperatures when there are other, more useful, indicators that can give us a better idea how rapidly the world is
warming.
Not surprisingly, given that the surface ocean is responsible for much of
atmospheric warming, ocean
warming and global surface
air temperatures vary largely in phase with one another.
When polar
air dipping southward collides with rising
warm tropical
air, the meet - up causes a powerful
atmospheric wave with rollercoaster - like patterns that propagate eastward around the globe.
Those
atmospheric ingredients tend to come into play across the Southeast in March as
warm, moist
air flows up from the Gulf of Mexico and meets with cooler, drier
air dropping down from the northwest.
An Pineapple Express
atmospheric river of moist, tropical
air will help
warm things up further.
Don't always shoot with the sun behind you: shooting into the light can give
atmospheric results, especially if there is mist or water in the
air, or if it's around sunrise or sunset when the light has a pleasing
warm tinge.
When snowfall is high in Siberia, the resultant cold
air enhances
atmospheric disturbances, which propagate into the upper level of the atmosphere, or stratosphere,
warming the polar vortex.
This is a result of cooling in tropical regions where
air descends, relative to
warming in tropical ascent regions, which strengthens low - level
atmospheric stability.
It also seems that even though the selective absorption of specific energy bands by different molecules IS the mechanism to add energy to the
air, the energy absorbed by CO2 & especially Water Vapor is extremely rapidly dispersed by molecular collisions to ALL the components of the atmosphere, so that the N2 and O2 also heatup, and all the
atmospheric components assume a uniform temperature (ie global
warming).
http://climate.nasa.gov/news/1141/: «Norman Loeb, an
atmospheric scientist at NASA's Langley Research Center, recently gave a talk on the «global
warming hiatus,» a slowdown in the rise of the global mean surface
air temperature.
A
warm parcel of
air will radiate more than a colder parcel, even at the same 390 ppm of CO2 in the
air due to the population of the different rotational and vibrational energy states of the GHGs from collisions with other
atmospheric molecules in the LTE limit.
A new study by Stanford University
atmospheric scientist Mark Jacobson has revealed that worsening
air pollution and higher carbon dioxide emissions go hand - in - hand - the results suggest intensifying global
warming will increase the number of smog - related deaths.
The point isn't a «perpetual increase in
atmospheric pressure» — that's a misnomer — if you consider the MASS of the atmosphere that is continuously «pumped» from cold
air to hot
air to cold
air again, high up in the atmosphere — that creates «potential energy» from the kinetic energy of the convection — adiabatic expansion of the atmosphere is the result — the adiabatic compression occurs on the return trip of the previously
warmed (from radiative energy)
air as it completes the «cycle» as it comes back down!
«Ocean
warming is very important compared to
atmospheric warming because water has a much larger heat capacity than
air,» co-author Jianjun Yin said.
Scientists say the record drought is due in part to the expansion of the Hadley Cell — the
atmospheric regions on both sides of the equator that circulates
warm tropical
air poleward — which is known climate change signal.
Several of the most disconcerting
atmospheric problems include smog and
air pollution, which are responsible for a higher incidence of respiratory diseases and death; acid rain, which contaminates numerous other ecosystems such as watersheds and forests; and finally, one particularly serious issue, climate de-stabilization caused by the accelerated rate of global
warming.
John Carter August 8, 2014 at 12:58 am chooses to state his position on the greenhouse effect in the following 134 word sentence: «But given the [1] basics of the greenhouse effect, the fact that with just a very small percentage of greenhouse gas molecules in the
air this effect keeps the earth about 55 - 60 degrees
warmer than it would otherwise be, and the fact that through easily recognizable if [2] inadvertent growing patterns we have at this point probably at least [3] doubled the total collective amount in heat absorption and re-radiation capacity of long lived
atmospheric greenhouse gases (nearly doubling total that of the [4] leading one, carbon dioxide, in the modern era), to [5] levels not collectively seen on earth in several million years — levels that well predated the present ice age and extensive earth surface ice conditions — it goes [6] against basic physics and basic geologic science to not be «predisposed» to the idea that this would ultimately impact climate.»
There's also a tendency for some people just to concentrate on
atmospheric or surface
air temperatures when there are other, more useful, indicators that can give us a better idea how rapidly the world is
warming.
More than 90 % of global
warming heat goes into
warming the oceans, while less than 3 % goes into increasing the
atmospheric and surface
air temperature.
The hypothesis of global
warming alarmism posits that increasing levels of
atmospheric carbon dioxide should lead to increasing temperatures, particularly with respect to Antarctica's super-cold, super-dry
air mass.
The only significant
atmospheric warming is where the local average
air temperature is LOWER than 280K.
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.
The greenhouse theory has already made two wrong predictions First, that adding carbon dioxide to
air will reduce
atmospheric IR transmittance (it didn't); and second, that it will cause twenty - first century
warming (it didn't).
Since the extra heat, mainly in the the oceans is the equivalent of
warming the atmophere by 42 °C, if this heat had been extracted from the atmosphere to
warm the oceans we would have seen a drop in
Air temperatures of a similar scale: ≈ 40 °C or so of
atmospheric cooling.
Then we have cold heavy
air over
warm moist
air - that is super «
atmospheric instability» that generates super weather.
Storms help replenish
warm water next to the ice, and help carry addtional heat into the melting region via
atmospheric transport of
warmer moist
air.
Likewise, general trends toward higher annual maximum daily rainfall are consistent with an overall rise in
atmospheric moisture associated with
warmer air (7 ⇓ — 9).
This resulted from the combined effects of high sea surface temperatures in open water areas and the effects of
atmospheric circulation drawing
warm air into the region.
The Arctic surface
air temperature is strongly effected by
atmospheric forcing and
atmospheric energy circulated poleward which creates the Arctic Winter
Warming and Sudden Stratospheric warming
Warming and Sudden Stratospheric
warming warming events.
Since cold
air is more dense,
atmospheric pressure decreases more rapidly with height on the poleward side of the polar front than on the
warmer tropical side.
Cornell and Rutgers researchers report in the March issue of Oceanography that the severe loss of summertime Arctic sea ice - attributed to greenhouse
warming - appears to enhance Northern Hemisphere jet stream meandering, intensify Arctic
air mass invasions toward middle latitudes, and increase the frequency of
atmospheric blocking events like the one that steered Hurricane Sandy west into the densely populated New York City area.
There is a temperature gradient caused by
atmospheric radiations —
warm air rises, expands and cools in lower pressure at height — but this is just the lapse rate and doesn't create cooler temps at height.
The regional
atmospheric circulation over the North Atlantic normally features a high over the Azores and a low near Greenland and Iceland — the westerlies are intense but the cold
air from Canada is
warmed before reaching Europe.
Since to me (and many scientists, although some wanted a lot more corroborative evidence, which they've also gotten) it makes absolutely no sense to presume that the earth would just go about its merry way and keep the climate nice and relatively stable for us (though this rare actual climate scientist pseudo skeptic seems to think it would, based upon some non scientific belief — see second half of this piece), when the earth changes climate easily as it is, climate is ultimately an expression of energy, it is stabilized (right now) by the oceans and ice sheets, and increasing the number of long term thermal radiation / heat energy absorbing and re radiating molecules to levels not seen on earth in several million years would add an enormous influx of energy to the lower atmosphere earth system, which would mildly
warm the
air and increasingly transfer energy to the earth over time, which in turn would start to alter those stabilizing systems (and which, with increasing ocean energy retention and accelerating polar ice sheet melting at both ends of the globe, is exactly what we've been seeing) and start to reinforce the same process until a new stases would be reached well after the
atmospheric levels of ghg has stabilized.
Since a sustainable future based on the continued extraction of coal, oil and gas in the «business - as - usual mode» will not be possible because of both resource depletion and environmental damages (as caused, e.g., by dangerous sea level rise) we urge our societies to -LSB-...] Reduce the concentrations of
warming air pollutants (dark soot, methane, lower atmosphere ozone, and hydrofluorocarbons) by as much as 50 % [and] cut the climate forcers that have short
atmospheric lifetimes.