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

By Francis Harvey PhD

This pragmatic e-book introduces key ideas and abilities to organize scholars to appreciate and use geographic info structures (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 happen on our planet. simple ideas of map making and map examining are built-in with discussions of suitable info applied sciences and functions. Written in an available kind, the textual content is geared up into 4 elements that may be utilized in any series in entry-level and extra really good GIS classes. ordinary positive factors comprise sensible examples and routines, enticing vignettes, and worthy net assets.

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The relationship is central for understanding flooding, but the information recorded in the geographic representation lacks this relationship at first—it must be determined and recorded as data in another step using the measurements. In the end, measurements, observations, and relationships are all parts of geographic representations, but relationships are usually separate from 38 / COMMUNICATION AND GEOGRAPHIC UNDERSTANDING In-Depth When Does Data Become Information? This question demands an answer that is straightforward but the issues at hand (representation, use, knowledge, meaning) are anything but clear.

Before looking at the practical demands of geographic information and cartographic communication, we should consider an example of the relationship between geographic representation and cartographic representation. A Choices in How We Make Representations / 45 common example occurs between the coordinate system and the projection. In many cases, the cartographic projection is the same as the projection used for the coordinate system. In these cases, it’s clear how the relationship between the geographic and the cartographic representations makes it easier for cartographic communication.

All these forms of artistic, computer, geographic, and cartographic representation are important to how we make sense of the world around us, but our vocabulary is a bit weak for distinguishing between them. To help with this problem, this book always proceeds “representation” with an adjective to distinguish what kind of representation is meant—for example, geographic representation. Review Questions 1. What distinguishes a thing from an event? 2. What is the geographic significance of the difference between a thing and an event?

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