EVSC 1450 Lecture Notes - Lecture 15: Fundamental Interaction, Water Cycle, Transpiration
31 Aug 2016
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Document Summary
Additional readings are up and required; will be covered on exam 3. Sensitivity of freshwater resources depends on precipitation. Intensity: how much precip in how much time/how fast. Warming changes the water cycle in many ways. Warm temperature encourages evaporation and transpiration (plants take water from soil and out threw leaves) Adding water to system due to glaciers and ice sheets. Atmosphere can hold and release more of precipitation in a given event (to restore balance) 5% increase in total precip in us. Renewable surface and groundwater resources will decline in subtropical dry areas and will increase at high latitudes. Increase in intensity: amount of rain falling in top 1% of storms increased by 20% in us over 100 years. Higher proportion of rain will fall in large storms in the future. Warmer ocean temperatures -> stronger storms at some times of year. Bigger plants have bigger roots, have bigger capacity to move water.
