Sentences with phrase «increasing the humidity at»

Warm mist humidifiers work by heating water and cooling it down to a preset temperature, and they help asthmatics by increasing the humidity at a constant temperature.

Not exact matches

We hypothesized that the over would be profitable at Coors Field but, knowing that humidity levels increase during the summer, we hypothesized that they would be particularly profitable during the late season.

Cui says the issue is not with the telescope, but with increasing dust and humidity at the site, which now gets only 120 clear nights a year, down from more than 200 when LAMOST was being planned.

... or is any AO / NAM trend driven partly by changes in storm track positions themselves being forced by other changes besides specifically AO / NAM (reduced static stability at higher latitudes, reduced lower tropospheric temp gradient, increased gradient in upper troposphere and lower stratosphere, increased humidity, variations in all those with latitude and longitude...)??

Do you know by how much the heart rate can increase at different intensity levels due to high temperature and high humidity?

Also: which type of coconut milk is best, bike workouts in a hotel, choosing the best (elliptical) chain rings, which fats are the healthiest, is sugar free dark chocolate ok, controlling the urge to snack at work, stress incontinence in female runners, increased heart rate in heat and humidity, correcting an estrogen imbalance, and how much to workout while lowering cortisol levels.

At our laboratory, the body temperature of most greyhounds increases to only 41 °C after a 500 - m race in the early morning when the ambient temperature is ∼ 30 °C and humidity is > 50 %.

Deaths may be reduced when infected puppies are reared in incubators at increased temperatures (95 °F [35 °C], 50 % relative humidity) and given adequate fluids and supportive therapy.

And specific humidity has been increasing at all levels of the troposphere (IPCC AR4 3.4)(the stratosphere too, but that is a somewhat separate issue).

Although there is some uncertainty as to exactly how much the humidity will increase it can be irrefutably stated that the feedback is at least another one degree celsius per doubling of CO2.

The (apparent) slower rate of projected model warming for a higher absolute temperature may be related to other factors like cloud amount and geographical distribution at higher absolute humidity, or increases in convective transport (due to more atmospheric instability) at higher absolute humidity.

re Gavin @ 223 I know what the mean global temperature is (actually, I don't, see below) but the question was why is this a meaningful metric for looking at changes over time, when you could get the same global mean from very different distributions of temperature (eg increase the poles, decrease the tropics) which would have very different interpretations of energy balance (at least if I am right that humidity matters)?

Now since relative humidity remains roughly constant at the ocean surface and the air's capacity to hold water increases with temperature, relative humidity will actually decrease over land, particularly as one enters the continental interiors.

Now suppose that atmospheric circulations don't change at all and that humidity in the lower troposphere increases, following Clausius - Clapeyron.

CO2's effect of stimulating plant growth and increasing plant tolerance of aridity contributed to revegetating large areas of land that were desert at the LGM, compounding the effects of an increase in atmospheric humidity, reduced land / ocean surface ocean ration, and increased warmth, all of which combined caused the reduction of airborne dust and atmosperic albedo.

The water vapor feedback (a generally positive feedback)-- there is an roughly exponential increase in saturation water vapor pressure with increasing temperature, and the relative humidity (at a given vertical level) overall tends not to change a lot globally, though there will be different regional trends associated with shifting precipitation patterns.

The condensation level at the top of the boundary layer will prevent this increased humidity reaching further up into the atmosphere, because it will be rained out from the clouds at the condensation level.

Short - term observations by Minschwaner + Dessler (2004) showed that SH increased with warming, but only at less than one - fourth the amount required to maintain fixed relative humidity.

Basically Miskolczi has looked at the thermodynamics of water vapor and CO2 and found that they interact such that, as CO2 rises, absolute humidity decreases, creating a relatively constant heat - trapping effect, if not a decreased effect with an increasing proportion of CO2.

Given the Clausius - Clapeyron relationship, the humidity of saturation increases roughly 8 % for every 1 °C, doubling for every 10 °C, where relative humidity remains roughly constant and therefore absolute humidity increases at 8 % per 1 °C.

I had stated that globally the rate of evaporation and precipitation increase at the same rate as the humidity of saturation, that is, by 8 % per 1 °C based on a roughly constant residence time, but this is false:

Should the water amplification mechanism of CO2's GHG effect be true, one would also expect to see an increase in the humidity, at altitude, at the same light flux.

This snowpack accumulation near the poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater polar humidity, earlier seasonal, later seasonal and heavier snows are beginning to move water vapor from the oceans to the poles to re-build the polar ice caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).

Specific humidity has increased at lower altitudes, but has decreased at high altitudes.

The decreasing specific humidity (especially at 300 and 400 mb levels) almost totally offsets the GHE of increasing CO2 content.

A quick look at absolute humidity rising with an average RH being constant, one has for 5 deg C, only a 30 % increase in h2o vapor.

Hence, decreases in relative humidity occur at stations experiencing the largest temperature increases in winter and spring as shown in Fig. 7.

I find looking at available data that since the increase in absolute humidity is larger than the increase in precipitation, with cloudiness pretty much a wash, that the evidence supports the existence of a water vapor feedback that is positive.

Air in clouds and immediately next to the ocean surface is at or near 100 % relative humidity, so as temperatures increase the absolute humidity there also increases.

Henry@daveSpringer OK, I did find humidity (RH) decreasing in Easter island at a phenomenal rate of -0.216 % per annum since whilst precipiation increased at almost 2 mm / month / annum (since 1975).

Measurement of CO2 concentration is always problematic; the «Standard Dry Air» SDA basis of measurement and comparison is at standard temperature and pressure which is a non-existent parameter; and as we are seeing, CO2 is not a well - mixed gas at all and will be defined by, amongst other variables, SH, or absolute humidity; SH can vary from 0 to 5 % by volume of atmosphere; as the SH increases, the absolute amount of other gases, including CO2, decreases; to say therefore that atmospheric concentrations of CO2 have remained stable and not been above 280ppm over the last 650my is fanciful; even if you assume past CO2 levels have not got above 280ppm the range of variation within that limit has been greater than the current increase;

It has increased the humidity of the atmosphere, altered the atmospheric vertical motion and associated cloud fields, and perturbed the longwave and shortwave radiative fluxes at the continental surface.

Over the ocean, the observed surface specific humidity increases at 5.7 % per 1ºC warming, which is consistent with a constant relative humidity.

Maybe I'm not reading it properly, but the spreadsheet appears to show DECLINING specific humidity at 850mb and above and INCREASING specific humidity at 950mb and below.

The models assume very small declines and increases (less than 1 % pp) in relative humidity at these levels over the same period (depending on height) so the data would be very inconsistent with the models and the theory.

There is increasing specific humidity at the lower levels, some decline in higher levels but the weighted average is constant.

Climate models (for various obscure reasons) tend to maintain constant relative humidity at each atmospheric level, and therefore have an increasing absolute humidity at each level as the surface and atmospheric temperatures increase.

Philipona et al. (2004) measured the changes and trends of radiative fluxes at the surface and their relation to greenhouse gas increases and temperature and humidity changes measured from 1995 to 2002 at eight stations of the Alpine Surface Radiation Budget (ASRB) network.

This is important with regard to H20, as humidity drops rapidly and the wave lengths that are absorbed by this molecule now escape at a greatly increased rate and so back radiation diminishes accordingly.

At the high - end scenario of global warming, in which global average temperatures increase to 8.46 degrees Fahrenheit above 1986 - 2005 average levels by 2100, the report found that «the combination of high temperature and humidity in some areas for parts of the year is projected to compromise normal human activities, including growing food or working outdoors.»

By 2085, an estimated 5.2 billion people — more than 3 billion additional people worldwide — are projected to be at risk for dengue because of climate change - induced increases in humidity that contribute to the disease's spread, based on models that use observed relationships between weather patterns and dengue outbreaks.6 Researchers in Australia and New Zealand calculated that climate change is projected to increase the range and risk of dengue in these countries.

This causes me to speculate that an increase in boundary layer humidity could increase the likelihood of clouds at the top of the boundary layer.

According to Isaac Held, climate models predict that the relative humidity over oceans will have to rise about 1 % (a 5 % increase in 1 — RH) to suppress surface evaporation which would otherwise rise at 7 % / degC and create a surface energy imbalance (because DLR increases with warming nearly as fast as OLR).

«If relative humidity stays constant — and that's what we expect with climate change — and temperatures go up, that means the amount of moisture in the atmosphere is increasing non-linearly,» says Tom Matthews, a climatologist at Liverpool John Moores University in the UK, who led the research.