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14 Cards in this Set
- Front
- Back
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Do we see more precipitation or evaporation over land/water?
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Precipitation/Evaporation
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Do oceans or land dominate precipitation and evaporation?
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Oceans
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What is advection? Does this lead to water or land gaining water? How does the other replace the water is loses?
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Advection is the horizontal movement of clouds over to land areas; Land gaining water; through runoff
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What is evapotranspiration?
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Evaporation (surface, water, soil, surface of a plant) and transpiration (plants releasing water, cooling mechanism, plant sweat)
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What is ACTET?
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Actual evapotranspiration (actual moisture demand); Difference between POTET and deficit
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What is POTET? How is it determined?
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Potential evapotranspiration = how much could be evaporation due that amount of energy (determined by latitude and temperature)
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If we think about the water budget as having supply and demand components, what is the "supply" and what is the "demand"?
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Precipitation is the supply, POTET is the demand
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For the surface water budget, what is the input? What are the possible outputs?
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Input: Precipitation
Outputs: Runoff, evapotranspiration, infiltration (upper level of soil), percolation (deeper level of soil) |
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What are the levels of soil moisture? When is the water available for plants to use?
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Hygroscopic (THIN FILM OF WATER)
Capillary (available to plants) Gravitational (saturated, percolation) |
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What is the definition of drought? Is it natural What are the 4 types?
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Less precipitation than expected or needed; Yes
Meteorological (less than expected) Agricultural (less than needed) Hydrological (reservoir levels drop) Socioeconomical (famines, etc.) |
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What is our largest potential freshwater source?
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Groundwater (22%)
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At what pace do aquifers recharge the water supply?
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Millions of years
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In developed countries, what is the breakdown for water withdrawal?
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Industry - 1st
Domestic - 2nd Agriculture - 3rd |
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In 3rd world area, which sector uses the most water?
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Agriculture
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