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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Lahars |
Mudflows in which occur following a volcanic eruption |
Laharts of da mud |
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Stability factor |
(F) calculated by divining the resisting force by driving force |
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What effects slope stability? |
Climate, vegetation, water, and time. Water triggers |
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Mass wasting is |
Downslope movement caused by gravity |
People held down |
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Angle of repose |
Steepest angle before downslope Movement |
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What helps flood prevention |
Levees, dams, Retention ponds |
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Channelization was for |
Control flooding, drain wetlands , and improve navigation |
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Channel sinuosity |
The ratio between the length of the channel and the straight line path length along the valley floor |
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Drain patters |
Dentritic, rectangular, trellis, radial and centripitaul |
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Drainage basin |
Fundamental for collection and distribution of water and sediment OMG e earths surface |
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River valley |
Terrain in which linear channel systems is developed |
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Interlfluves |
Land along divides which separate adjoining valleys |
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Channel patterns |
Braided, meandering, straight |
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Braided |
Favorites by eroded banks, abundant coarse sediment and rapid changes in discharge |
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Meandering |
Has a sinuosity greater than 1.5 |
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Gradient |
Vertical drop over a certain horizontal distance |
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Discharge (q) |
Amount of water passing a giver cross section in a given amount of time Q= wxdxv |
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Flood stage |
Height which water rises above stream gauge datum |
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Hydrograph |
Plots changes through time in discharge, depth,stage |
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Greatest number of loss for flood in? |
Asia |
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When did Indus River flood? |
July August 2010 |
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Earths water mostly stores as |
Ground water |
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Permeability |
Ability to transmit water to atmosphere and subsurface |
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Confined aquifer |
Groundwater separated from silk |
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Soluble? |
Sodium calcium |
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Speleothems |
Deposited in caverns when water leaves behind the compounds |
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Tower karsts |
Occurs in latest stage of karstification when most of limestone has been dissolved |
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Some sinkhole disasters |
Drained Scott lake -June 13th 2006 Winter park - may 8-10 1981 Tifton Georgia August 2012 |
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