Lecture 11 Freshwater I

Lecture 11 Freshwater I - Freshwater Where is all the...

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Unformatted text preview: Freshwater Where is all the Water? Oceans, Seas, & Bays 96.5 Ice caps, Glaciers, & Permafrost 1.80 Groundwater 1.70 Lakes 0.013 Soil Moisture 0.001 Atmosphere 0.001 Wetlands, Swamps 0.0008 Rivers 0.0002 Biological Water 0.0001 Water source Percentage of total water 70% of fresh water on earth exists as ice South pole 2 miles deep North pole 15 feet deep Melting = 200 ft sea level increase- 375 ft + 45 ft If all the atmospheric moisture fell to the earth at once the sea level would rise only one inch Available Freshwater Groundwater Lakes Soils Wetlands Rivers 0.775% 0.8% 1E+14 2E+14 3E+14 4E+14 5E+14 6E+14 7E+14 8E+14 9E+14 1E+15 acre-feet of water E a r t h F e s w I c n d G l i L q u o S f W k A m p R v Resource Water on Earth 5E+12 1E+13 2E+13 2E+13 3E+13 3E+13 Resource Freshwater on Earth 1E+12 2E+12 3E+12 4E+12 5E+12 6E+12 7E+12 8E+12 9E+12 1E+13 Resource Liquid Water on Earth Groundwater provides 98% of all available freshwater 62% 21% United States Total Water Withdrawals Florida Surface Water Groundwater More than 90% of Floridas drinking water is from groundwater Geographic Distribution Location, Location 6 countries possess half of the worlds total renewable freshwater supplies. Brazil Colombia Russia Canada Indonesia China Water Availability and Location Greenland: 8 million gallons/person/day Alaska: 1 million gallons/person/day Congo: 130,000 gallons/person/day South America: 3 of the 10 largest rivers Gaza: 37 gallons/person/day Asia has 2/3 of world population, but 1/3 renewable water 25% of fresh river water 5% of world population Gaza has the lowest per capita water availability in the world. Water Demand The three major factors causing increasing water demand over the past century population growth industrial development expansion of irrigated agriculture....
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This note was uploaded on 07/31/2011 for the course SOS 2007 taught by Professor Dr.jamesbonczek during the Summer '07 term at University of Florida.

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Lecture 11 Freshwater I - Freshwater Where is all the...

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