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28 Cards in this Set
- Front
- Back
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limnology
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study of lakes and streams
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oceanography
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study of oceans
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Water Cycle
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Precipitation, Evaporation, Transpiration
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discharge
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flow of water through a cross sectional area
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hydrograph
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plot of discharge over time
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laminar flow
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occurs closest to the surface of solid object; smooth
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turbulent flow
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occurs above surface of solid object, chaotic collection of eddies and swirls
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dissolved load
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derived from chemical weathering
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lotic
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flowing
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lentic
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standing still
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infiltration
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rate at which water enters soil - depends on size of soil particles, attraction of water to soil, and attraction of water molecules to each other
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ephemeral
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dry channel most of the year, only water after rain
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intermittent
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dry channel part of the year, ground water flow
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perennial
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carry water year round, fed by stable grounwater, consistent rate of flow
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dendritic
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regular drainage pattern geologically fixed, predictable, bed rock driven
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distributary
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shifting substrates, braided channel or alluvial fan-style of drainage
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thalweg
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main channel, area of fastest flow and deepest area, most scour occurs here
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Bankfull discharge
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major channel forming discharge
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water table
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ground water flow into system
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hyporheic zone
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wet zone underneath the substrate
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What do streams organisms need
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place to live, food, mates, place to mate
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Endemicity
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found in one location only
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sediment transport models
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flow and parent substrate materials, how much power (force) the water has and particle size
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point bar
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where sediment is deposited
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dynamic equilibrium
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constantly changing but want to come to an equilibrium
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epilimnion
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light water, more sunlight, major photic zone
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hypolimnion
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heavier water with lower oxygen but high nutrient and different pH and chemical concentration
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Metalimnion
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layer of rapid temperature change, thermocline location
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