Chorographical Maps.pptx for geoinformatics

For geoinformatics

1. Chorographical Maps

2. Introduction The art of describing or mapping a region or district. A description or map of a region. The physical conformation and features of such a region.

3. History   Chorography is a term deriving from the writings of the ancient geographer Pomponius Mela and Ptolemy , meaning the geographical description of regions. Concepts of chorography have been associated with a type of visual literacy through imagery offering a qualitative mapping of place and region.

4. Defnitions Richard Helgerson states that "chorography defines itself by opposition to chronicle . It is the genre devoted to place, and chronicle is the genre devoted to time.” Darrell Rohl prefers a broad definition of "the representation of space or place”.

5. Ptolemy's definition In his text of the  Geographia  (2nd century CE), Ptolemy defined  geography  as the study of the entire world, but chorography as the study of its smaller parts—provinces, regions, cities, or ports. Its goal was "an impression of a part, as when one makes an image of just an ear or an eye"; and it dealt with "the qualities rather than the quantities of the things that it sets down". Ptolemy implied that it was a  graphic  technique, comprising the making of views (not simply maps), since he claimed that it required the skills of a draftsman or landscape artist, rather than the more technical skills of recording "proportional placements".

6. Ptolemy as imagined by a 16th-century artist

7. Modern usages In more technical geographical literature, the term had been abandoned as city views and  city maps  became more and more sophisticated and demanded a set of skills that required not only skilled draftsmanship but also some knowledge of scientific  surveying . However , its use was revived for a second time in the late nineteenth century by the geographer   Ferdinand von Richthofen . He regarded chorography as a specialization within geography, comprising the description through field observation of the particular traits of a given area . The term is also now widely used by historians and literary scholars to refer to the  early modern  genre of topographical and antiquarian literature.

8. Ferdinand von Richthofen

9. EXAMPLE : A Chorographical Map Of The Province Of New-York In North America…..

10. Description State / Province:New York Published in January 1st 1779 Scale 1:335,400 The last and best of the large scale surveys of the American Colonies before the Revolution. Military grants outline colored in red . Includes text and advertisement. Manors in green Townships in yellow. Relief shown by hachures . Endless interesting detail.

11. Chorography & Geography   Chorography deals, for the most part, with the nature rather than the size of the lands. It has regard everywhere for securing a likeness, but not to the same extent [as geography] for determining relative positions. Geography , on the other hand is concerned with quantitative rather than qualitative matters. Therefore , chorography has need of topography and no one can be a chorographer unless he is also skilled in drawing.