A Primer of GIS: Fundamental Geographic and Cartographic by Francis Harvey PhD

By Francis Harvey PhD

This pragmatic publication introduces key suggestions and abilities to arrange scholars to appreciate and use geographic details platforms (GIS). The textual content completely explains what geographic details is, the way it is represented and analyzed, and what it communicates approximately human and environmental actions and occasions that ensue on our planet. easy rules of map making and map examining are built-in with discussions of proper info applied sciences and purposes. Written in an available sort, the textual content is equipped into 4 components that may be utilized in any series in entry-level and extra really expert GIS classes. straightforward beneficial properties contain functional examples and workouts, attractive vignettes, and valuable web assets.

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25) Although some cartographers find this view dismissive of cartographers’ labor, it highlights how distortions are necessary for cartographic communication to succeed. Perhaps we should add the important note that this also means that we need to be especially on guard when working with material prepared under a cartographic license that is ambiguous. For cartographic communication, we should pay special attention to the following characteristics of maps: Scale What is the relationship between units on the map and the same units on the ground?

Fortunately, in most cases at least, commonly used projections have been established. Which common projection used in northern Illinois is best suited for the presentation of river flooding? This issue needs to be considered together with the coordinate system. 44 / COMMUNICATION AND GEOGRAPHIC UNDERSTANDING Scale To represent locations measured in a projection system to locations on a map or coordinates used for geographic information, the locations are scaled. Scale also constrains how things, events, and geographic relationships can be shown.

In-Depth Representation An artist may represent a face, a room, or a landscape. A computer scientist may represent the same things and events as a data model or a database. A geographer may represent these things as objects and as relationships. A cartographer may represent them as features and attributes. For some people, representations have dangerously replaced experience. On the other end of the spectrum, other people find that our enhanced technologies for representation make it possible to transcend past limitations.

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