The Doldrums are characterized by low atmospheric pressure and very calm, light winds. Because the sun is directly overhead, the air is constantly heated and rises (convection). This vertical movement means there is very little horizontal pressure gradient at the ...
Discussion Forum Latest Questions
Isobars are lines drawn on a weather map that connect geographic locations with the same atmospheric pressure at a given time. By looking at the pattern of isobars, meteorologists can identify areas of high and low pressure. The spacing between ...
Rossby waves are giant meanders in the high-altitude jet streams. These waves are caused by the variation of the Coriolis effect with latitude and the influence of large mountain ranges or ocean-land temperature differences. They play a critical role in ...
The atmospheric layer located at the very edge of Earth’s influence is known as the exosphere. This region is the transition zone between our planet’s atmosphere and interplanetary space. Here, the air consists mainly of extremely low-density hydrogen and helium. ...
Temperature in the troposphere decreases with height at a standard rate known as the lapse rate. For every kilometer of ascent, the air cools by roughly six and a half degrees Celsius. This occurs because the troposphere is primarily heated ...