GEOS 1034 Lecture 2: Earth's Natural Hazards (test 2) (1)
26 May 2019
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Document Summary
Sun powers the processes that occupy the surface of the earth. How the sun interacts with bodies of water. Tectonics driven by internal heat = 0. 9 w/m^2. Surface processes are driven by insolation = 342 w/m^2. All surface systems heated so process rates are generally faster insolation drives water cycle. Insolation drives water cycle --> water cycle drives most surface processes. Results in rivers, streams, lakes: water within drainage basin runs out through one river. The amount of water per unit of time (m^3/sec, ft^3/sec (cfs)) Velocity of water times the cross sectional area through which it ows. Given channel shape data, water level (stage) measured by gage. In ltration creates groundwater: more in ltration = more groundwater = higher water table (vice versa, may react with subsurface rock. The percentage of open space in a material. Eats away at surface, deposited in a cave (stalagmites and stalactites) Landscapes are shaped by turning rocks into sediments.
