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Moisture

Moisture. Moisture = Water Vapor (gas) Gets into the atmosphere by: Evaporation = liquid to gas (opposite of condensation) Transpiration = plants release water. Factors Affecting Moisture. Amount of insolation or temp. Amount of water vapor in air (humidity).

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Moisture

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  1. Moisture Moisture = Water Vapor (gas) Gets into the atmosphere by: • Evaporation = liquid to gas (opposite of condensation) • Transpiration = plants release water

  2. Factors Affecting Moisture Amount of insolation or temp. Amount of water vapor in air (humidity). Surface area – spread out evaporates faster. Wind speed – wind increases evaporation

  3. Relative Humidity Relative humidity = ratio of water vapor in air to amount of water vapor possible. Dew Point = condensation temp. - always lower than air temp. - equal to 100% relative humidity.

  4. Psychrometer Instrument that measures humidity. Dry-bulb = regular thermometer Wet-bulb = wet thermometer Use ESRT charts and differences in these temperatures to get DP and RH.

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