Why? Because of the many factors which affect atmospheric pressure. Pioneering scientists discovered atmospheric pressure (also known as barometric or air pressure) in the 17th century ...

Vapor pressure, along with dew point and relative humidity, is one of many ways to express the amount of water vapor in the ...

These streams are then transported by global wind currents ... use data on wind patterns ocean temperatures and atmospheric pressure to forecast the movement and potential impact of these moisture ...

"Barometric pressure is atmospheric pressure ... associate professor at the School of Sustainability and the College of Global Futures at Arizona State University in Tempe, Arizona.

Solar energy enters the atmosphere. Equatorial regions get the most. There is more energy at the tropics than at the poles, creating an imbalance. As warm air rises and cold air sinks it forms ...

Researchers say that as the Earth's atmosphere heats up, with relative humidity staying mostly the same, a property of the atmosphere called vapor pressure ... increase as global warming continues ...

Pressure is measured in millibars. Standard pressure at sea level is 1013 millibars, but large areas of either high or low pressure can occur. Areas of high and low pressure are caused by rising ...