What Happens When Barometric Pressure Rises?
Mass The atmosphere has mass, and therefore produces pressure upon the surface of the Earth. The measurement of atmospheric pressure is accomplished by means of a device called a barometer. Barometric pressure, named for the pressure measuring device, changes depending on elevation and atmospheric phenomenon. Elevation Areas of higher elevation naturally have lower atmospheric pressure, since there is less atmosphere pressing down on them at any given time. Weather changes also affect the barometric pressure in an area. Masses of warm and cold air move through the atmosphere, meeting, parting and causing changes in the atmospheric pressure below. The polar regions send out masses of cold and dry air, while masses of warm and wet air come from the equator. Moisture Advection Rising air pressure often occurs as the result of moisture advection. Moisture advection is a term used to describe the phenomenon of the wind blowing moist air to or from an area. When moisture advection transfers
