This water vapor rises high into the colder atmosphere where clouds are formed.
However, as
the water vapor rises the lapse rate means that the volume of air cools and eventually the water vapor condenses into water droplets and then into ice latent heat is given off to the surrounding air at each of these phase changes, with two effects.
Warmer water means more
water vapor rises up into the air, and what goes up must come down.
Condensation occurs all along the path as
the water vapor rises and cools to the dewpoint.
Meaning no matter what the temperature,
water vapor rises.
The Clausius - Clapeyron equation specifies that as the temperature of the air rises the ability of the air to hold more
water vapor rises exponentially.
The river appears black inthe dull light, and
water vapor rises like smoke off the surface, marking itserratic course until it meshes in the distance with the gathering mist.
The sun evaporates water from the ocean,
water vapor rises and becomes clouds.
That water vapor rose within «rocket dust storms» — storms with rapid vertical movement — on convection currents similar to those in some storm clouds on Earth, says study coauthor Nicholas Heavens, an astronomer at Hampton University in Virginia.
As the development of a Tropical Storm relates to
water vapor rising cooling and precipitating out.
Not exact matches
Now researchers suggest that perhaps groundwater is
rising to the surface or that
water vapor from the thin atmosphere on Mars condenses and flows down the slopes.
But by the same token, as global temperatures
rise, the atmosphere can hold more
water vapor.
Prior to an eruption, gases —
water vapor, carbon dioxide, and sulfur dioxide — bubble out of the magma as it
rises, adding more pressure to the volcanic system, she explains.
Rising temperatures would put more
water vapor into the atmosphere, which then rains out, increasing the amount of dissolved carbon dioxide that chemically interacts with the rocks.
An instrument on Rosetta is already measuring 5 liters per second of
water vapor production, but that rate is expected to
rise to 500 liters per second by the time 67P makes its closest approach to the sun in August 2015.
In a matter of seconds, when you put the food in the fryer,
water starts evaporating,
vapors form and escape the surface, oil penetration starts, and heat begins to
rise while at the same time there's evaporative cooling off at different points in the food.
The spacecraft's sensitive spectrometer was able to register the chemical signatures not only of
water vapor but also of hydrogen cyanide, carbon monoxide, and carbon dioxide — all precursors of the more complex molecules that scientists think eventually gave
rise to life on Earth.
They expected that
rising temperatures would produce more
water vapor, leading to more snowfall and more ice.
In December 2015, the Dawn team reported a haze of
water vapor above the crater — a cloud that grew as temperatures
rose during the day, and disappeared at night as temperatures dropped and the
water vapor condensed into frost.
Climate scientists know that the intensity of extreme precipitation events is on the
rise because there's more
water vapor in the atmosphere caused by higher global and sea temperatures.
They strengthen over warm
water, such as that around Florida, and
rising temperatures create more
water vapor in the atmosphere, intensifying rainfall.
The research, published yesterday in Nature Climate Change, outlines a counterintuitive side effect of climate change: As higher temperatures drive plants and trees into areas now inhospitable to them, their new distribution speeds up temperature
rise via natural processes such as releases of heat - trapping
water vapor into the air.
As tides raised by Jupiter in Europa's ocean
rise and fall, they may cause cracking, additional heating, and even venting of
water vapor into the airless sky above Europa's icy surface.
Scientists believe that heat brings up
water vapor from the inside of the planet, which condenses as it
rises and produces heat.
The telescope is believed to have captured direct images of
water vapor plumes
rising 125 miles above the surface of Jupiter's frozen moon.
Thousands of studies conducted by researchers around the world have documented changes in surface, atmospheric, and oceanic temperatures; melting glaciers; diminishing snow cover; shrinking sea ice;
rising sea levels; ocean acidification; and increasing atmospheric
water vapor.
As the temperature
rises,
water vapor evaporates at a higher rate, raising the
water vapor content of the atmosphere, further amplifying the the increased greenhouse effect of the additional carbon dioxide.
This isn't news to top climate scientists around the world (see Hadley Center: «Catastrophic» 5 — 7 °C warming by 2100 on current emissions path) or even to top climate scientists in this country (see US Geological Survey stunner: Sea - level
rise in 2100 will likely «substantially exceed» IPCC projections, SW faces «permanent drying») and certainly not to people who follow the scientific literature, like Climate Progress readers (see Study:
Water -
vapor feedback is «strong and positive,» so we face «warming of several degrees Celsius»).
Water vapor enters the stratosphere mainly as air
rises in the tropics.
Thinking Head, 2017, a public commission by the gallery, is a sculpture composed of a hidden device emitting
water vapor that slowly
rises from the roof of the building, inspired by Alighiero Boetti's last sculpture, My Brain is Smoking, 1993.
However, the Management and Guest Contributors at WUWT accept the basic truth that CO2,
water vapor, and other «greenhouse gases» are responsible for an ~ 33ºC boost in mean Earth temperature, that CO2 levels are
rising, partly due to our use of fossil fuels, that land use has changed Earth's albedo, and that this human actvity has caused additional warming.
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.
So the
rising trend in the lower curve is going to represent much more
water vapor added to the atmosphere than the declining top curve represents as leaving it.
More
water vapor from
rising temperatures will further increase the temperature
rise.
If the CO2
rise is a carbon cycle feedback, this is still perfectly compatible with its role as a radiative agent and can thus «trigger» the traditional feedbacks that determine sensitivity (like
water vapor, lapse rate, etc).
Evaporation rates do indeed seem to be
rising (Yu & Weller 2007), and so is tropospheric
water vapor (Trenberth et al 2009 at 317).
This argument hinges on the contention that more
water vapor means greater density of
water droplets in the active
rising updraft of the storm clouds.
So as more CO2 gets pumped into the atmosphere the temperature
rises, which causes more
water to evaporate (as you accurately state), increasing the concentration of
water vapor in the atmosphere — which heats the atmosphere even more, causing even more
water vapor to enter the atmosphere.
Inceasing oxygen (for example form 20.9 to 30 percent) in my opinion would: Increasing scattering and so albedo, lowering temperature Increasing total pressure, broadening of absorption lines,
rising temperature Increasing adiabate slope,
rising SAT directly but decreasing
water vapor, total effect??
16 (DBB) If more
water vapor leads to more precipitation then
water vapor will act as a negative feedback on
rising global temperature.
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.
C isothermic level in the pacific appeared to
rise from an average of 400 meters to about 100 meters recently; I find myself wondering then how is it that the oceans heat content is dropping, the solar input appears to be consistant, that one of the GEWEX comitties appears to indicate that the atmospheric
water vapor seems to be decreasing.
If you just look at amplification of CO2's greenhouse effect by
water vapor, the
rise in temperature due to CO2 will result in a certain amount of additional
water vapor.
By the same token if I look at polar regions with the concentration of frontal changes there seems to be a rapid
rise of tropospheric
water vapor invading the stratospheric range.
This additional
rise in temperature will result in still more
water vapor which will raise the temperature still more, but by a smaller amount.
Judith wrote: «The only potentially interesting point is whether the clear sky atmospheric optical depth has remained the same in the face of
rising CO2, implying a decrease in
water vapor.»
This means that every 2 degree potential
rise in temperature of the surface layer causes an 8 fold
rise in the amount of
water vapor release hence buckets more clouds and massive albedo reflection keeping the temperature from riding.
The only potentially interesting point is whether the clear sky atmospheric optical depth has remained the same in the face of
rising CO2, implying a decrease in
water vapor.
Again, the contention is that
rising CO2 causes
water vapor to rain out at such a rate as to make optical thickness of the atmosphere in the IR constant.