EVSC 1010 Lecture Notes - Lecture 7: Vapor Pressure, Lapse Rate, Fluid Parcel

• School: University of Virginia
• Department: Environmental Sciences
• Course: EVSC 1010
• Professor: Thomas Smith

Document Summary

Changes with temperature as temperature increases, relative humidity decreases because the air can hold more water vapor. Dew point temperature the temperature at which water vapor in the air condenses, and thus the air is saturated the actual vapor pressure equals the saturation vapor pressure and thus the relative humidity is 100% Adiabatic lapse rates the change in temperature of a mass of air as it moves. Environmental lapse rate the negative of the actual change of temperature with. Adiabatic no heat transfer in or out of the parcel of air. Lifting condensation level the altitude at which condensation begins this is when the temperature of the rising air parcel reaches the dew point temperature aka it is now completely saturated and switches to wet adiabatic. Cloud formation process as moist air rises, initially it cools at the dry adiabatic lapse rate it soon cools to its dew point, and clouds form.