Geography 1100 Lecture Notes - Lecture 12: Advection, Evapotranspiration, Turbulence
21 Jan 2016
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419,000 cubic km evaporates from the ocean every year. 382, 000 cubic km precipitates into the ocean every year. 37,000 cubic km surface run off, overland flow, groundwater flow. Groundwater = > water that did not evaporate back into the atmosphere. > rain gauge (collects and measures amount of rainfall from the sky) In order for high evaporation rates: - warm temperatures, dry air above water source. > amount of moisture that would evaporate and transpire if adequate moisture was available. > amount of water lost under optimum moisture conditions. > potet or pe note: cone of depression. Ground water will pick up seepage from landfill site and can pollute underground wells. Arid climate influent stream losing water to ground water. Humid climate effluent stream gains water from ground water. > laminar flow (all particles flowing in a streamlined way, with the same velocity across any points) > turbulent flow (all particles flowing at different velocities, in a random manner)
