chap. 11 & 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| the hydrologic cycle | water evaporated from ocean , cooled water forms vapor and turns into clouds, circles earth and then turns to rain
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| runoff | precipitation falls too rapidly to be absorbed
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| overland flow | too much water to be absorbed into ground
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| sheet flow | flows in sheets down hill slopes, shallow
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| channelized flow | flow with path created by water movement
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| infiltration | process by which water on the ground enters the soil
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| types of infiltration | to soil water belt, to ground water
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| aquifer | permeable (water can move through) rock or sediment
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| perched water table | smaller water table sittig above main water table
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| aquiclude | impermeable rock or sediment
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| karst | dissolution of limestone
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| discharge | volume of water/unit time
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| stage | height of stream surface
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| stream gage | measures stage and discharge
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| stream velocity- friction | inc friction= dec velocity
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| stream velocity- slope | inc slope = inc velocity
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| stream velocity- area | dec area= inc velocity
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| drainage basin | total area occupied by drainage system
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| drainage divide | line following crest of upland seperating basins
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| hydrograph | plots discharge over time
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| base flow | peak water table
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| flood stage | height/stage above where river floods
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| resevoir | storage of water from water source
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| lakes and geologic time | only temporary
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| salty lake | landlocked with concentration of salts and other dissolved material higher than other lakes
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| fluvial geomorphology | how landscapes change over time, the study of landforms created by running water
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| denudation | lowering of landscape by water
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| erosional landform | process of natural break down of rocks
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| depositional landfom | formed by depositing of material
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| slope erosion - overland flow | removes sediment from slope
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| slope erosion- splash erosion | causes soil detachment and disinigration, erosional, soil bombarded wirh rain
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| sediment yield | quantity of sediment removed
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| dec vegitiation= | inc sediment yield
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| rill | small channels in hill slope carved by flowing water
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| master rill | water hooses rill and makes it larger over time
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| gully | steep walled canyon like trench
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| stream erosion- hydrolic action | force of flowing water removrd material
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| stream erosion- abrasion | rock particles carried by river
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| stram erossion- corrosion | chemical weathering dissolution
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| graded stream | carries just right amount of sediment that ot recieves
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| waterfall | eodes background over time
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| aggradation | elevation of strem bed is risiing
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| degedation | stream cutting down into sediments
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| entrenched meander | stream degrades into befrockq
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| point bar | depositional ladfor inside of meander
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| cut bank | erosional landform on outsife of meander bend
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| cut off | kocation on river where a meander was abandoned
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| oxbow lake | left behind after cutoff crescent shaped lake
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| natural levee | ridge of course sediments parrallels river on both sides
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| backswamp | flat section of finer sediments
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| terrace | former floodplain
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| eolian geomorphology | wind erodes naterials
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| wind abrasion | wind drives sand against surface
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| wind delfation | wind picks up loos particles
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| angle of response= | angle of stavility
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| alpine glacier | descending mountian valley formed among summits
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| glacier formation | accumulation of ice on land showing signs of past or present movement
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| cirque | bowl shaped depression at head of glacier
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| glacial trough | u shaped glacier valley evidence of former glaciers
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| hanging valley | u shaped trintary valley when glacier recedes its left hanging above
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| striations | series of ridges
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| zone of accumulation | area above firn lne where snow accumulates and exceeds losses froma ablation
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| zone of ablation | below firn line loss in ice mass due to melting
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| snowline | elevation above where snow melts
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| rigid zone | shallow
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| plastic zone | slower movement at bottom and along valley walls
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| arete | knife like ridge formed by enlargement of 2 troughs or cirques
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| horn | pyramidal peak formed by enlargement if 3 or more cirques
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| tarn | lake in cirque
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| col | low point in arete
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| till | unsorted unstratifies
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| moraine | main landform composed of tills ridges etc
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| fjord | long narrow inlet with steep sides or cliff createdd by glacial erosion
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| rouch moutenee | rock formation created by passing of glacier causing abrasion
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| ice marginal lake | lake located adjacent to glacier formed inn bedrock basin
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| outwash plain | formed from glacial sediments
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| kame | mound compased of sand gravel and til accumulates in retreating glaciers
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| kettle | shallow sediment filled body of water formed by retreating glaciers
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| esker | winding ridge of stratified land anfd gravel
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| drumlin | elongated hills in shape of inverted spoon formed by glacial ice
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