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19 Cards in this Set
- Front
- Back
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Evapotranspiration |
Combined effect from water evaporation and plant transportation |
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Most water in the atmosphere comes from |
Evaporation and transpiration |
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PET definition |
Amount of Evapotranspiration that could occur given an unlimited moisture supply |
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PET Inputs and Losses |
Precipitation and Evapotranspiration |
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Precipitation > PET |
Surplus water Water stored at ground level as ponds/rivers Humid |
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Precipitation < PET |
No surplus water Ground water lost to Evapotranspiration Arid |
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Adiabatic heating and cooling |
Process by which air warms or cools by sinking or rising in the atmosphere. No transfer of heat. |
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Rising air... |
Cools and expands |
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Sinking air... |
Warms and compresses |
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Dry Adiabatic Lapse Rate |
10°C/1000m Occurs in unsaturated air |
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Wet Adiabatic lapse rate |
5°c/1000m |
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Environmental Lapse Rate |
6.5°C/1000m |
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Warm air rising air is... |
Unstable |
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Cold sinking air is... |
Stable |
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When air rises... |
Precipitation, storms, clouds |
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Low pressure means |
Rising air and precipitation, instability |
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High pressure means |
Sinking air and stability |
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Subtropical High |
Around 30° Lat, high pressure dominates. Arid, dry, stable, and little precipitation. |
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At the equator... |
Lush vegetation bc of the ITCZ and equatorial low, so lots of rainfall |
