9-10 notes

9-10 notes - Geography 1111 9-10-08 Hydrologic cycle and...

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Geography 1111 9-10-08 Hydrologic cycle and water balance Precipitation types Hydrologic cycle Evapotranspiration Soil water balance Patterns of surplus and deficit Precipitation Formation Water droplets in clouds too small to fall to ground Not heavy enough to fall Too small, would evaporate below cloud All rain in the midlatitudes initially forms as snow** know for test Cloud tops experience temps of -10 to -40 degrees C. Tiny water droplets become supercooled liquid. These droplets easily freeze onto freezing nuclei, like suspended dust and salt particles. This causes a snowflake to form. If it later falls into air with temps above freezing, it melts. Components of hydrologic system: Surface freshwater (lakes, streams, and rivers) Soil water (held by capillary action, resists gravity) Ground water reserves (water table, wells) Water vapor and clouds in the atmosphere Water in plant/animal biomass Glacial ice (largest freshwater reserve)
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9-10 notes - Geography 1111 9-10-08 Hydrologic cycle and...

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