runningwaterI

runningwaterI - Physical Geology 101 27. Running Water I...

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Physical Geology 101 1 27. Running Water I (p. 424-436; 440-444) Hydrosphere How much of the Earth s surface is covered by water? ________ Earth's water is collectively called the _________________ and is stored in a number of so-called _________________ as follows: 1. ____________________ 2. ____________________ 3. ____________________ 4. ____________________ 5. ____________________ 6. ____________________ 7. ____________________ Most of the world s water is in the oceans (i.e. most water is salty). How much? ________ The second largest accumulation of water, about 2.1%, is stored in ________________ In other words, about 74% of the world s fresh water supply is ________________ Out of all the liquid fresh water we have, about 99% of it is stored ________________ Although very little of the Earth's water flows through rivers, running water is the most important geologic process for modifying the Earth's land surface. Huge volumes of water move through Earth's rivers each year. The constant shifting or recycling of water from the oceans, to the atmosphere, to the continents, and back to the oceans is called the ______________________. On a local scale there may be sudden fluctuations, such as floods or droughts. Individual reservoirs may also have prolonged changes due to global climate changes. The processes by which water travels between the reservoirs include: ___________________: water changes from a liquid to a gas, driven by the Sun's energy ___________________: water taken up by plant roots then moves into the atmosphere ___________________: atmospheric water vapor changes into a solid or liquid ___________________: condensed water that falls to the ground (rain, snow or hail) ___________________: water that is transported across the land surface (e.g. in rivers) ___________________: water that seeps into the ground The amount of time that water molecules spend in any reservoir is called the: _________________________ What is the residence time in the following reservoirs? Oceans and ice sheets: ____________________
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Physical Geology 101 2 Groundwater: ____________________ Rivers: ____________________ Atmosphere: ____________________ Living organisms: ____________________ Rivers and Channel Flow When water falls onto the land, it will either be absorbed into the soil, which is a process called ___________________, or it will flow down-slope. How much water is absorbed into the soil depends on the soil
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This note was uploaded on 01/13/2012 for the course GEOL 101 taught by Professor Williams,t during the Fall '08 term at Idaho.

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runningwaterI - Physical Geology 101 27. Running Water I...

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