GEOG 1F91 Lecture Notes - Lecture 9: Refraction, Landform, Wave Base
11 Mar 2016
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Document Summary
Seasonal change low (winter) high (early summer) 30-45 cm. Long term change change over periods of consecutive years = range ~2m. Water diversions: ogoki and long lac water into basin, chicago water out of basin, welland canal- between lakes, new york stage barge canal- water to lake ontario and east. Control structures on st. marys river and st lawrence river. Lose heat lw, latent heat flux, sensible heat transfer. Warm surfaces decreases density epilimnion. Summer stratification develops, warm (top) cold (bottom) E. g. pollen- plants in watershed e. g. plankton- water temp. Water as a resource critical response agriculture, industry, domestic uses. Modern society= vast amounts of freshwater 150-400l per person per day. Water footprint measures the amount of water used to produce goods and services . Wind primary mode of sediment transport arid regions sand size particles. =rougher surface= deeper zone of calm air. Also clay cohesion optimum size: 0. 08mm (very fine sand) Saltation (bouncing)- lift off ground but still low.
