Atmospheric Moisture Earth Science.

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Presentation transcript:

Atmospheric Moisture Earth Science

Warm Air Cold Air Moisture in the Air Humidity is the moisture in the air. Warm Air Cold Air

Humidity Warm Air Cold Air Particles are far apart. . . Thus the air has low density . . . The farther apart the particles, the more moisture the air can hold Particles are close together. . . Thus the air has high density . . . The closer the air particles, the less moisture the air can hold

Relative HUMIDITY Ratio of air’s actual water vapor content compared to the amount it can hold To find/calculate: Measure the wet and dry bulb temperatures. Find the difference between the two temperatures. Use the dry bulb temperature and the difference between the two bulbs to look up the relative humidity on the chart provided.

Dew Point Dew point temperature is the temperature at which an air mass is saturated (holding as much as it can) with water and will begin to condense. Example: Air Temperature = 85F Dew Point = 55F Once the temperature reaches 55F, then dew (condensation) will form on surfaces (cars, grass, etc.).