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.

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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.

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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.

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Dew Point is a temperature. The air needs to cool down to this temperature order from
condensation to happen.
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