watersheds in pennsylvania
DESCRIPTION
Watersheds in Pennsylvania. What is a watershed?. A drainage basin A basin that contributes water to a stream, lake, or other body of water. Surrounded by topographic highs called divides. Any ridge between two streams along which precipitation runs off. Demonstration. - PowerPoint PPT PresentationTRANSCRIPT
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Watersheds in Watersheds in PennsylvaniaPennsylvania
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What is a watershed?What is a watershed?• A drainage basin
– A basin that contributes water to a stream, lake, or other body of water.
– Surrounded by topographic highs called divides.
• Any ridge between two streams along which precipitation runs off.
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DemonstrationDemonstration
• http://techalive.mtu.edu/meec/module01/whatiswatershed.htm
• Watershed Game
• http://www.bellmuseum.org/distancelearning/watershed/watershed2.html
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The Continental DivideThe Continental Divide
• Separation between water that drains into
–Atlantic ocean
– Pacific Ocean
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PA Major WatershedsPA Major Watersheds
• Great Lakes
• Ohio River Basin
• Susquehanna/Chesapeake Basin
• Potomac Basin
• Delaware Basin
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Question?Question?
• Where would water in PA eventually drain to?
• The Atlantic Ocean
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PAPA
• The PA State Water Plan organizes the states freshwater system.
• We have 104 watershed
– Separated into basins and sub basins.
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Great Lakes BasinGreat Lakes Basin
• Only 1% of the Great Lakes basin lies in PA.
• Divided into 2 sub basins– Erie Basin– Genesee Basin
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Erie BasinErie Basin
• Major Fresh water bodies of water– Conneaut Creek– Elk Creek– Walnut Creek
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Genesee BasinGenesee Basin
• Most come from New York State– And drain into Lake Ontario
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Ohio River BasinOhio River Basin
• PA’s second Largest watershed– 16,000 square miles of PA
• Provides drinking water for an estimated 13 million people– 3.5 million of PA
• Largest River in the Basin in Pittsburgh, where the Allegheny river meets the Monongahela.
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Susquehanna/Chesapeake BasinSusquehanna/Chesapeake Basin
• Largest Watershed in PA
• Covering 46% of the state
• Headwaters come from New York Ostego Lake– Mouth ends in Chesapeake
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Major TributariesMajor Tributaries
• Lackwanna
• Conestoga
• West Branch Sus.
• Juniata
• Loyalsock and Tuscarora Creeks
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Here We
Are!!!
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Potomac BasinPotomac Basin
• Located on the borders of PA• Tributaries
– Shenandoah– Marsh– Wills– Tonoloway– Licking– Rock– Conococheague– Antietam
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Delaware BasinDelaware Basin
• Covers 6,500 square miles of PA
• 3rd Largest Watershed
• Tributaries– Lackawaxen, Upper, Middle, and Lower Lehigh Rivers
• Creeks– Maiden and Brandywine
• ( Transfers water to the Hudson Basin in New York City’s Freshwater needs)
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