Sentences with phrase «by water vapor content»

The new theory presented in Miskolczi's paper shows that the atmosphere maintains a «saturated» greenhouse effect, controlled by water vapor content.

Not exact matches

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.

In one sentence: Researchers at Pacific Northwest National Laboratory found that when miniscule particles of airborne dust, thought to be a perfect landing site for water vapor, are modified by pollution, they change cloud properties via ice crystal number concentration and ice water content.

Specific humidity content of the air has increased, as expected as part of the conventional water vapor feedback, but in fact relative humidity also increased between 1950 and 1990, indicating a stronger water vapor feedback than given by the conventional assumption of fixed relative humidity.

Away from the dense network of heat absorbing (daytime) then heat radiating (nighttime) structures which is the Urban Heat Island and above the air with high water vapor content trapped by the valley along the river, not to mention the pall of coal dust over the city, morning low temps were much more like what the natural countryside would experience.

The distance between them being governed by the height of the Rossby convective plume, where heat and water vapor content suggest the residence time.

Ocean heat content is ultimately controlled by a number of complicating factors including positive and negative forcings and feedbacks dealing with clouds, water vapor, and also CO2.

We have had lengthy heating phase caused by a spurt of insolation, now we have had a big El Nino, a subsequent shift to La Nina and the resulting warm currents moving up the the Western Pacific, causing warming polar oceans and changes in atmospheric water vapor content.

Moreover, the increase in atmospheric water vapor content in the Arctic region during late autumn and winter driven locally by the reduction of sea ice provides enhanced moisture sources, supporting increased heavy snowfall in Europe during early winter, and the northeastern and mid-west United States during winter.

The water vapor content of the atmosphere rises by about 50 percent if atmospheric temperatures were to increase by 5C and relative humidity remained constant.

Climate projections, such as those used by the Intergovernmental Panel on Climate Change, rely on models that simulate physical properties that affect climate, including clouds and water vapor content.

As Broecker has said, «If you wanted to cool the planet by 5 °C and could magically alter the water vapor content of the atmosphere, a 30 percent decrease would do the job.»

This can be affected by warming temperatures, but also by changes in snowfall, increases in solar radiation absorption due to a decrease in cloud cover, and increases in the water vapor content of air near the earth's surface.2, 14,15,16,17 In Cordillera Blanca, Peru, for example, one study of glacier retreat between 1930 and 1950 linked the retreat to a decline in cloud cover and precipitation.18

It's also pretty likely that the El Nino will bring some very damaging weather at various points, which will serve to remind us that flooding is something to respect and yes, fear, whether it's driven by El Nino or by increasing water vapor content due to global warming.

ANSWER: by «saturation» is usually meant a complete absorption of the radiation of the surface by the carbon dioxide and water vapor of the air: according to Dufresne and Treiner it is saturated and according to Pierrehumbert (Physics Today 2011) it is not; for me 0.8 (W / m ²) / 400 = 0.2 % for a doubling of the CO2 content is» nearly saturated»; 0.8 W / m ² is the additional absorption for 2xCO2 (e.g. per Hansen 1981)

QUOTE: He says water vapor content has been roughly constant for 50 years, but that is contradicted here: http://www.pnas.org/content/104/39/15248.full.pdf ANSWER: the quoted paper by Santer considers only the TOTAL water vapour content.

The pCO2 in the atmosphere is given by its volumetric CO2 content (ppmv) minus water vapor which is maximum a few % near sea level.

Elliott et al. conclude, based on the selected data below 500 hPa only that SH (moisture content) increased slightly with warming, but not at a rate sufficiently strong to maintain constant RH, as is assumed by the IPCC models in estimating water vapor feedback.

Moreover, the increase in atmospheric water vapor content in the Arctic region during late autumn and winter driven locally by the reduction of sea ice provides enhanced moisture sources, supporting increased heavy snowfall in Europe during early winter and the northeastern and midwestern United States during winter.

At sea level, the energy content of the evaporated water molecules will be quite high, but the temperature of the air will not be because most of the air is N2 (temperature is an average), which isn't heated by IR radiation from the water vapor molecules.

The saturated greenhouse effect is supported by 50 years of TIGR data i.e. radiosonde soundings of the troposphere which reveal that as CO2 level rises water vapor content of the atmosphere falls and thus the total GHG content of the atmosphere remains constant.

The temperature structure as a function of altitude, i.e. the lapse rate, in the troposphere is set by the considerations discussed regarding adiabatic expansion and compression (basically because a lapse rate higher than the appropriate adiabatic lapse rate for the given water vapor content is unstable and leads to convection until marginal stability is restored).

By varying the water vapor and CO2 content of the atmosphere using MODTRAN, adjusting the surface temperature offset to keep OLR constant at 100 km, it's clear that Ed - Eu and Su - OLR aren't constant as tau changes, as should be expected.

They heat up the atmosphere, which is maintained warm mainly by its content of water vapor.

Is there some sort of a «natural thermostat» mechanism by which atmospheric water vapor content is regulated to prevent a long - term «positive feedback» from water vapor, as is assumed by all the IPCC climate models?

The question that this raises: Is there some sort of a «natural thermostat» mechanism by which atmospheric water vapor content is regulated to prevent a long - term «positive feedback» from water vapor, as is assumed by all the IPCC climate models?