Aquatic Landscapes/The Hydrosphere

-External processes in rock cycle-Mass wasting vs Erosion-Water cycle-Stream velocity-Stream base level and erosion

External processes

WeatheringMass Wasting Solar PoweredErosion

Weathering

Disintegration and decomposition of rock at or near the Earth’s surface

Mass Wasting

Transfer of rock material down-slope under the influence of gravity

Creep

Rockslide

Slump

Erosion

Incorporation and transportation of material by a mobile agent, usually water, wind or ice

Transfer Mechanisms

Evaporation:-liquid substance becomes a gas.

-When water is heated, it evaporates. -The molecules move and vibrate so quickly that they

escape into the atmosphere as molecules of water vapor.

Evapotranspiration:

the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere

Precipitation

Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail.

https://www.youtube.com/watch?v=zBnKgwnn7i4

Sublimation and Desublimation

Infiltration

STRREEEAAMAMMASSS

Streamflow:velocity; usually greatest in the middle -least frictionChanges in a bend

Gradient

Discharge

Volume of water moving down a stream per unit of time

Stream Profile

https://www.youtube.com/watch?v=VYmjne2y9pA

https://www.youtube.com/watch?v=ktf73HNZZGY

Stream Transportation

Dissolved Load: in solution>Contribution by groundwater

>Chemicals, minerals, nutrients

Suspended Load: Floating, >sediment, particles, silt, sand, clay...

Bed Load: >rolling and scooting along the bottom

Capacity Vs Competence

Capacity: the amount of stuff the stream can carry/move (>discarge = >capacity)

Competence: biggest stuff the stream can move (>streamflow = >competence)

Delta