Geol 1040 1st Edition Lecture 34Outline of Last Lecture IX. Stream Valleysa. Alluvial fansb. Characteristicsc. Outside of streamd. Inside of streamX. Floodinga. Flood plainb. Floodsc. Types of Floodsd. Flood ControlOutline of Current Lecture IX. Ground watera. Where does water occurb. Water break downc. Main ways we use waterd. Importance of Ground Watere. Where does gw existf. How does GW accumulateCurrent LectureIX. Ground watera. Where does water occurThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Lakesii. Streams iii. Ground waterb. Water break downi. 3.5% fresh1. 68.7% glaciers2. 30.1 % ground waterc. Main ways we use wateri. 39.6% irrigationii. 39.3% thermoelectric poweriii. 13.5% domestic useiv. 5.3% industrialv. 1.1% aquaculturevi. 0.6% miningvii. 0.5% livestockd. Importance of Ground Wateri. 94% of liquid freshwater is groundwaterii. Largest reservoir of freshwater readily available to humansiii. Gw is drinking water for over 140 million peopleiv. Over 40% of the water is used for irrigation and 25% for industryv. Heated gw produces power for 3.5 million homese. Where does gw existi. In pore spaces between sediments and grainsii. Water fills fracturesiii. Water fills cavities and cavesf. How does GW accumulatei. Under saturated zone1. Water held by mote. Attraction on soil particles in the near surfacezoneii. Zone of saturation water completely fills open spaces (pores, fractures, caves) and is called ground water1. Water table: the upper limit of the zone of
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