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Precursors to the modern GIS. Thematic maps in the days before desktop computing. Ancient maps. This ancient tablet from the 7 th century BC depicts the world at the time of Sargon (2300 BC) as a circle surrounded by water, with Babylon at its center. (British Museum).
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Precursors to the modern GIS Thematic maps in the days before desktop computing CS 128/ES 228 - Lecture 1b
Ancient maps This ancient tablet from the 7th century BC depicts the world at the time of Sargon (2300 BC) as a circle surrounded by water, with Babylon at its center. (British Museum) http://www.bible-history.com/babylonia/BabyloniaMaps.htm CS 128/ES 228 - Lecture 1b
Early modern physical maps • Gerard Mercator, 1595 • Includes 14th c. geographical errors (polar islands, Rumes Nigra) CS 128/ES 228 - Lecture 1b
Early thematic maps Das Reich der Liebe. Johann Gottlob Immanuel Breitkopf. Leipzig, 1777 CS 128/ES 228 - Lecture 1b
Early epidemiological maps • Incidence of an epidemic in Glasgow, Scotland (Perry 1844) • Used color to emphasize the geographical distribution of cases CS 128/ES 228 - Lecture 1b
An early geo-database MAP OF THE CONTOURS OF LONDON AND ITS ENVIRONS, SHOWING THE DISTRICTS AND AREAS SUPPLIED BY THE NINE METROPOLITAN WATER WORKS' COMPANIES. By ROBERT W. MYLNE, C.E., F.G.S., F.S.A., FELLOW INST. BRIT. ARCHITECTS. Area 176 Square Miles. Scale 1/17032 of nature. CS 128/ES 228 - Lecture 1b
MAP OF LONDON WATER DISTRICTS (1856) CS 128/ES 228 - Lecture 1b
The database is in the map legend! CS 128/ES 228 - Lecture 1b
Snow’s “Grand Experiment” CS 128/ES 228 - Lecture 1b
Mapping as an analysis tool • John Snow’s map of cholera cases in a neighborhood in London helped pin-point the source: • a cesspool 3’ from the Broad Street public well CS 128/ES 228 - Lecture 1b
U. S. Atlas of Cancer Mortality CS 128/ES 228 - Lecture 1b
Jacquiline TyrwhittThe mother of modern GIS??? CS 128/ES 228 - Lecture 1b
Design with Nature • by Ian McHarg. 1969 • An early form of thematiclayering for environmental impact assessment & planning CS 128/ES 228 - Lecture 1b
Richmond Parkway Study • Finding the best route for a highway on Staten Island: “the one that provides the maximum social benefit at the lowest social cost.” CS 128/ES 228 - Lecture 1b
Physiographic features - 1 CS 128/ES 228 - Lecture 1b
Physiographic features - 2 CS 128/ES 228 - Lecture 1b
Land values - 1 CS 128/ES 228 - Lecture 1b
Land values - 2 CS 128/ES 228 - Lecture 1b
Final solution: CS 128/ES 228 - Lecture 1b
Multi-thematic maps Use of a simple (3 level) scale to compare values Overlay technique McHarg’s Legacy to GIS CS 128/ES 228 - Lecture 1b