Sentences with phrase «relative humidity levels»

The air is most often at its driest around June 21st, when the relative humidity levels fall below 70 % three days out of every four.

On the other hand, June 21st is when the air is at its most humid, when relative humidity levels rise above 92 % three days out of every four.

October 5th is usually when the air is at its most humid, when the relative humidity levels exceed 92 % three days out of every four.

The air is most often at its driest around October 4th, when the relative humidity levels drop below 70 % three days out of every four.

Humidistats allow you to set the desired relative humidity level for a room or area in your home or business.

Not exact matches

In my small greenhouse, I control relative humidity, temperature, light level, and photoperiod (the relative length of night and day).

Even when I used it in a very dry room (30 relative humidity) it easily put it up to comfortable levels (45 R.H.) in about an hour.

These temperatures control the relative humidity, and therefore in the higher areas the humidity drops to dangerous levels for the heritage items, while in the lower areas, the higher humidity is responsible for reduced heat sensation for the parishioners.

As a measure of air moisture, researchers have always taken relative humidity, which is the ratio of actual water content in the air to the maximum possible level.

Relative humidity was controlled at 60 percent, a typical indoor level in Singapore.

Spider dragline silk was tested in a wet environment to show that moisture induces supercontraction in the threads for levels higher than 70 — 75 % of relative humidity, proving that when a thread is exposed to moisture, stresses quickly build up and tighten the thread [20].

The teacher next planned for students to go to the weather section of a local online newspaper and find and define some of the following terms: front, high and low pressure, wind velocity, precipitation, relative humidity, pollution levels, and sunrise and sunset.

The air is predicted to be driest around June 1st, when the relative humidity drops below a comfortable 35 % three days out of four, whilst the most humid is expected to be around June 4th, where humidity levels could rise above a humid 78 %.

I think you now are trying to prove something that (as Ten Hoeve et al say) is quite «understandable» and something that at a basic level nobody would disagree with (certainly while relative / specific humidity remains outwith the discussion).

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.

Using wireless sensors, Eddy will tell you the pH level, temperature, and relative humidity, detect contamination, and provide information for how to resolve problems.

This line will have its base at the condensation level, which is the theoretical height at which relative humidity reaches 100 %.

Global rainfall increases typically cause an overall reduction of specific humidity (q) and relative humidity (RH) in the upper tropospheric levels of the broader scale surrounding convection subsidence regions.

Does anyone know why the only surface humidity field from the ERA - Interim dataset is 2m dew point and not the more commonly used fields of specific humidity and / or relative humidity (which are also available as pressure level fields)?

Rain merely lowers the relative humidity to a level that the current air conditions will support.

In most computer models relative humidity tends to remain fixed at current levels.

When the relative humidity exceeds by more than 10 % the saturation level the condensation proceeds rapidly under ideal conditions.

In mixed climates, during the heating season, interior moisture levels should be limited to the 30 to 40 % relative humidity range at 70 °F (21.1 °C).

Given there is much more water vapour in the lower levels of the atmosphere, the study really found that there was a decline in overall global relative humidity when global warming theory suggests it should stay more - or-less stable.

Given there is much more water vapour in the lower levels of the atmosphere, the study really found that there was a decline in overall global relative humidity.

The study found there was a 1.5 % (percentage points) decline in relative humidity in the very lower levels of the troposphere and a 1.5 % increase in relative humidity in the upper layers of the troposphere.

These metrics emphasise fields between 30S and 30N including 2 m air temperature (Willmott and Matsuura 2000), vertically averaged air temperature (ERA40, Uppala et al. 2005), latent heat fluxes of the ocean (Yu et al. 2008), zonal winds at 300 mb (ERA40, Uppala et al. 2005), longwave and shortwave cloud forcing (CERES2, Loeb et al. 2009), precipitation over land and ocean (GPCP, Adler et al. 2003), sea level pressure (ERA40, Uppala et al. 2005), vertically averaged relative humidity (ERA40, Uppala et al. 2005).

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.

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.

Can anyone elaborate on the remark «Climate models (for various obscure reasons) tend to maintain constant relative humidity at each atmospheric level»?

etudiant says: February 28, 2011 at 2:18 pm Relative humidity in the upper atmosphere (300mb level) has fallen from around 55 % in 1950 to about 45 % now.

I think etudiant has an interesting point concerning the jetstream (300mb level) and the reduction in its relative humidity.

«In the Mid-Atlantic, the indoor relative humidity tends to level off in the mid-30s (percent range) when you air - seal a home properly,» he says.