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Water vapor is a lighter gas than other gaseous components of air at the same temperature, so humid air will tend to rise by natural convection. This is a mechanism behind thunderstorms and other weather phenomena. Relative humidity is often mentioned in weather forecasts and reports, as it is an indicator of the likelihood of dew, or fog.
Different air masses which affect North America as well as other continents, tend to be separated by frontal boundaries. In meteorology, an air mass is a volume of air defined by its temperature and humidity. Air masses cover many hundreds or thousands of square miles, and adapt to the
Humid heat is the constant-pressure specific heat of moist air, per unit mass of the dry air. [8] The humid heat is the amount of heat required to change the temperature of unit mass of a water vapor - air mixture by 1 °C.
The density of air or atmospheric density, denoted ρ, [1] is the mass per unit volume of Earth's atmosphere. Air density, like air pressure, decreases with increasing altitude. It also changes with variations in atmospheric pressure, temperature and humidity.
When the air is cooled below the dew point, its moisture capacity is reduced and airborne water vapor will condense to form liquid water known as dew. [1] When this occurs through the air's contact with a colder surface, dew will form on that surface. [2] The dew point is affected by the air's humidity. The more moisture the air contains, the ...
But humid air is already chock-full of water so your sweat doesn't really have anywhere to go. Evaporation slows down and all that heat stays stuck to you, so you start cooking.
A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, [1] typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers, and cold (sometimes severely cold in the northern areas) and snowy winters. Precipitation is usually ...
A hygrometer is an instrument which measures the humidity of air or some other gas: that is, how much of it is water vapor. [1] Humidity measurement instruments usually rely on measurements of some other quantities such as temperature, pressure, mass, and mechanical or electrical changes in a substance as moisture is absorbed.