ATMO 336 Exam 2 Study Guide

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In this document, I jotted down some notes while putting together the reading material. These notes point out some of the reading content to pay particular attention to. The notes are divided into section headings based on the reading material. This is not meant to be a complete list of everything that you need to know from the reading Water in Atmosphere You should know what is meant by phases of water and phase changes of water. Water vapor is extremely important in the atmosphere for many reasons. A few of those reasons include Water vapor transforms into both liquid and solid cloud particles that grow and fall to Earth as precipitation. When water vapor condenses in the formation of clouds, large amounts of heat - calledlatent heatis …show more content…

Water willboilwhen the saturation vapor pressure is equal to the surrounding air pressure. At sea level, this happens when the saturation vapor pressure equals the average sea level pressure of 1013 mb.If the saturation vapor pressure is less than the surrounding air pressure, any bubble of water vapor that tries to form will be crushed by the surrounding air pressure. Therefore depending upon the exact value of the surrounding air pressure, water will begin to boil at a specific temperature, i.e., the temperature where the saturation vapor pressure is equal to the surrouding air pressure. You should understand that in an open system (like the atmosphere around us), the saturation vapor pressure specifies the maximum amount of water vapor that can exist in the air (keep in mind that the saturation vapor pressure or the potential amount of water vapor that can be in the air increases sharply as the air temperature increases). Near the Earths surface, the vapor pressure is usually less than the saturation vapor pressure. When air rises upward, it cools and the maximum amount of water vapor that the air can hold decreases. If the air