Global Water. Science Research & Exploration Spring 2010. Global Climate Zones. Population density. http://earthtrends.wri.org/text/population-health/map-192.html WRI, 2000 based on CIESIN 2000. Water Scarcity Index. http://maps.grida.no/go/graphic/water-scarcity-index
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Science Research & Exploration
WRI, 2000 based on CIESIN 2000
Philippe Rekacewicz (Le Monde diplomatique), February 2006
Where is the wettest place on earth?a) Mt. Waialeale, Hawaii b) Mt. Kilimanjaro, Tanzania
c) Amazon Forest, Brazil
Where is the driest Place on Earth?
a) Death Valley, California b) Atacama Desert, Chile
c) Sahara Desert, Africa
How much rain does Los Angeles normally get every year?
a) 50 inches b) 25 inches c) 15 inches
How much water does the average person in Los Angeles use each day?
150 gallons b) 500 gallons c) 40 gallons
How much water does a person normally use for a 5 minute shower?
a) 35 gallons b) 100 gallonsc) 5 gallons
Which group uses the most water in the western U.S.?
a) Urban Cities b) Industry c) Agriculture
What is a watershed?
A watershed is the land area where water collects and drains through a single outlet.
It can drain onto a lower level property or into a river, ocean or other body of water.
Process and store
Functions of watersheds
Inputs = water coming into the system
Outputs = water leaving the system
What are some of the inputs?
What are some of the outputs?
Inputs â€“ Outputs = Change in Storage
(think bank account, without interest!!)
130 sq. miles
64% residential 8% commercial 4% industrial
17% open space
Which type of watershed are we in?
Where do you expect to see more pollution?
Water budgets helps us evaluate sensitivity to change!