Sentences with phrase «vapor warmed the atmosphere»

Not exact matches

A rather straightforward calculation showed that doubling the level of carbon dioxide in the atmosphere... which would arrive in the late 21st century if no steps were taken to curb emissions... should raise the temperature of the surface roughly one degree C. However, a warmer atmosphere would hold more water vapor, which ought to cause another degree or so of warming.
Most climatologists expect that on average the atmospheres water vapor content will increase in response to surface warming caused by the long - lived greenhouse gases, further accelerating the overall warming trend.
They pointed to a warmer atmosphere, which carries more water vapor to worsen rainstorms, as well as to higher ocean surface temperatures, which intensify hurricanes.
The Indonesian archipelago sits in the Indo - Pacific Warm Pool, an expanse of ocean that supplies a sizable fraction of the water vapor in Earth's atmosphere and plays a role in propagating El Niño cycles.
Moreover, the warming makes the atmosphere damper (providing still more water vapor) and may cause the stratosphere to heat up, speeding the chemical reactions that destroy ozone.
The team chose the specific area examined in the study because it is Earth's warmest open ocean region and a primary source of heat and water vapor to the atmosphere.
One thing is already clear: A warmer global atmosphere currently holds about 3 to 5 percent more water vapor than it did at the beginning of the 20th century, and that can contribute to heavier precipitation.
The warm conditions of the earth get a big boost from water vapor as well as several other culprits, some of which never existed in the atmosphere prior to human influence.
They strengthen over warm water, such as that around Florida, and rising temperatures create more water vapor in the atmosphere, intensifying rainfall.
And more water vapor worldwide is related to the atmosphere being warmer — we have about 7 percent more water vapor in the atmosphere now than we did in the 1950s, which is directly linked to the increase in heavy precipitation events.
Researchers have recently started to pay more attention to how water vapor in the atmosphere is related to global warming.
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.
According to Dr. Kevin Trenberth at NCAR in Boulder, Colo., an increase in water vapor floating overhead, triggered by warming of the atmosphere and oceans, is already loading the dice.
Another process knows as a «runaway greenhouse» occurs due to the increased greenhouse effect of water vapor in the lower atmosphere, which further drives evaporation and more warming.
However, the surface warming caused by human - produced increases in carbon dioxide, methane, and other greenhouse gases leads to a large increase in water vapor, since a warmer atmosphere holds more moisture.
For every 1 °C (1.8 °F) of warming, the amount of water vapor in the atmosphere increases by about 7 percent.
However, this doesn't account for feedbacks, for example ice melting and making the planet less reflective, and the warmer atmosphere holding more water vapor (another greenhouse gas).
I presume this is because a warmer atmosphere can hold more water vapor, and that rain (or snow) has to come down somewhere.
Rahmstorf said in a follow up email that this is just basic physics, citing the Clausius - Clapeyron equation, which shows that the atmosphere holds more water vapor when it is warmer, setting the stage for more rainfall.
It was hypothesized that if CO2 warmed the atmosphere, the amount of water vapor — itself a powerful greenhouse gas — in the atmosphere should increase.
[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
For example, they predicted the expansion of the Hadley cells, the poleward movement of storm tracks, the rising of the tropopause, the rising of the effective radiating altitude, the circulation of aerosols in the atmosphere, the modelling of the transmission of radiation through the atmosphere, the clear sky super greenhouse effect that results from increased water vapor in the tropics, the near constancy of relative humidity, and polar amplification, the cooling of the stratosphere while the troposphere warmed.
But there are solid physical reasons to expect acceleration — the radiative imbalance is growing along with the concentrations of GHGs; we are shedding reflective ice from the cryosphere; our warming atmosphere is holding more water vapor, a potent GHG; and we are melting permafrost and frozen soils to release methane.
As global warming continues, the amount of water vapor in the atmosphere increases.
In Relationships between Water Vapor Path and Precipitation over the Tropical Oceans, Bretherton et al showed that although the Western Pacific warmer surface waters increased the water in the atmosphere compared to the Eastern Pacific, rainfall was lower in the Western Pacific compared to the Eastern Pacific for equal amounts of water vapor in the atmospheric column — e.g., about 10mm / day in the Western Pacific, versus ~ 20mm / day in the Eastern Pacific at 55 mm water vapor, the peak of the distribution of water vapor amoVapor Path and Precipitation over the Tropical Oceans, Bretherton et al showed that although the Western Pacific warmer surface waters increased the water in the atmosphere compared to the Eastern Pacific, rainfall was lower in the Western Pacific compared to the Eastern Pacific for equal amounts of water vapor in the atmospheric column — e.g., about 10mm / day in the Western Pacific, versus ~ 20mm / day in the Eastern Pacific at 55 mm water vapor, the peak of the distribution of water vapor amovapor in the atmospheric column — e.g., about 10mm / day in the Western Pacific, versus ~ 20mm / day in the Eastern Pacific at 55 mm water vapor, the peak of the distribution of water vapor amovapor, the peak of the distribution of water vapor amovapor amounts.
As the atmosphere warms it can hold more water; that additional water vapor provides more of the warming than is directl caused by CO2.
This is just one of the many «interesting» weather events that we will all have to get used to in the future, as level of water vapor continue to increase in the warming atmosphere.
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).
--- ignorance about atmospheric chemistry really shows here...... snip --- «Moreover, the CO2 that is supposedly causing «catastrophic» warming represents only 0.00035 of all the gases in the atmosphere (1.25 inches out of a 100 - yard football field), and proposals to control this vital plant nutrient ignore a far more critical greenhouse gas: water vapor
Words only have meaning in context and while it may be true that water vapor is a greenhouse gas in the sense that more of it in the atmosphere will absorb more infrared radiation and warm the climate, it is not a greenhouse gas in the sense that it is a gas we need to seriously worry about adding directly to the atmosphere.
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.
increase in the concentration of water vapor in the atmosphere as the atmosphere warms as indicated by the Clausius - Clapeyron equation.
In fact, as the atmosphere warms, the «atmospheric window» tends toward closing (particularly because of water vapor effects), and excess escape through this window can't account quantitatively for the reduction in stratospheric temperatures.
Simple physics dictates that with less sea ice there is magnified warming of the Arctic due to powerful albedo feedback; this in turn reduces the equator to pole temperature gradient which slows the jet stream winds causing them to become more meridional; this combined with 4 % more water vapor in the atmosphere (compared to 3 decades ago) is leading to much more extremes in weather.
So a local spike in precipitation releases a lot of heat — but as the heat increases, this negatively affects the vapor - > water transition (precipitation, or raindrop formation), since warm air holds more water then cool air — and so the limit on precipitation vis - a-vis the radiative balance of the atmosphere appears.
The incorrect sensitivity of climate to CO2 that the models have depends upon warmer temperatures keeping more water vapor in the atmosphere.
The warmer world would keep that extra water vapor in the atmosphere, not precipitate it.
If CO2 in the Anthropocene atmosphere contributes to re-vegetating currently arid areas as it did post-LGM, we should expect an even greater warming feedback from CO2 than is assumed from water vapor and albedo feedbacks, due to decreased global dust - induced albedo and increased water vapor from transpiration over increased vegetated area.
The rise in long - lived greenhouse gases (decades to centuries) warms the atmosphere and surface, and that increases the average amount of water vapor in the atmosphere.
Warmer air holds more water vapor than colder air, so the amount of water vapor in the lower atmosphere increases as it is warmed by the greenhouse effect.
While rainfall in the region is consistent with the emerging El Niño, the unprecedented amounts suggest a possible climate change signal, where a warming atmosphere becomes more saturated with water vapor and capable of previously unimagined downpours.
Water vapor feedback can also amplify the warming effect of other greenhouse gases, such that the warming brought about by increased carbon dioxide allows more water vapor to enter the atmosphere.
You appear to have your knickers all twisted about the generally accepted greenhouse theory, which states that GH gases (primarily water vapor, plus some smaller ones, such as CO2) keep our planet warmer than it would otherwise be if they were not in our atmosphere.
One would get some water vapor in the atmosphere, but liquid water on the surface would be rare - probably more due to volcanic activity rather than sunlight warming surface.
The water vapor cooled the Earth, the snow cooled the atmosphere with resulting increase in surface albedo which does reflect radiative heat, meaning the Earth gets less warm, not colder because of it.
The fact that we sit at +15 C and not -15 C is definitive proof that water vapor is not removed from the atmosphere fast enough to not have an appreciable global warming / climate change effect.
For example, the CO2 - induced global warming allows the atmosphere to hold more water vapor.
The record warm sea surface and atmosphere held a never before seen excess of water vapor and moisture in suspension — primarily over the Equatorial Ocean zones.
We also know that in a warming world we have more water vapor in the atmosphere and some regional water bodies including the Gulf Of Mexico are warmer now then in recent times most likely under the influences of climate change.
First, there's the well - known fact that a warmer atmosphere can hold more water vapor, meaning more moisture can be wrung out of the clouds when it does rain.
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