| HYDROLOGIC CYCLE Evaporation- when water changes from liquid to gas. Condensation- when water changes from gas to liquid. Precipitation- when water falls from the sky as a solid or liquid. Transpiration- when plants release water vapor. Sublimation- when water changes from solid to gas. Deposition- when water changes from gas to solid. Specific Humidity=Mass of water vapor/mass of total air (divided by) Saturated- when the air is holding the maximum amount of water vapor that it can. - When the rates of condensation and evaporation are equal the air is saturated. - In other words... when the same amount of water vapor turning into liquid is the same as the amount of liquid turning into water vapor. Relative Humidity- mass of water vapor/mass of water vapor capacity. (divided by) RH= water vapor content in air/ how much vapor the air can hold. - Relative humidity is the ratio of how much water vapor there is in the air compared to how much water vapor it can hold and is always expressed as a percent. - If the amount of water vapor the air can hold goes down, but the amount of water vapor remains the same, then the humidity increases. - The warmer the air temperature the more water vapor air can hold. - The colder the air temperature the less water vapor air can hold. - Condensation occurs when air is no longer able to hold water vapor and it ends up turning into liquid. Dew Point- temperature to which air must be cooled in order to meet its saturation point. - Dew Point is a temperature. The air needs to cool down to this temperature order from condensation to happen. |
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