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Flow Maps Kazimierz (Casey) Zaniewski Geography & Urban Planning University of Wisconsin-‐Oshkosh NACIS 2015
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Flow Maps • Types • History • Drawbacks • AlternaPve maps • Examples • SoSware
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Types of Flow Maps
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Brief History of Flow Maps Henry Harness (1837) Charles Minard (1863)
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Drawbacks of Most Flow Maps Display limited amount of informaPon
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Shape of Flow Lines
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Shape of Flow Lines Straight Flow Lines
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Shape of Flow Lines Curved Flow Lines
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Radial Flow Map
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Flow and ProporPonal Symbol Maps
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DistribuPPve Flow Map
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Flow and ProporPonal Symbol Maps
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Network Flow Map
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Network Flow Map
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Network Flow Map
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Flow Map CollecPons
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Flow Maps: American Atlas
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Flow Maps: French Atlas
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ProporPonal Symbol Maps Instead of Flow Maps Migra7on from Russia, 1982-‐2007 Migra7on to Russia, 1982-‐2007
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Examples of Flow Maps
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Examples of Flow Maps
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World MigraPon Flows
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Flow Map in MapViewer
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Flow Map in Cartes et Données
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Flow Map OpPons in PhilCarto