They are developed to address specific problems and, thus, reflect the focus of the discipline at particular times. The techniques that geographers use in their work are not developed in a vacuum. With respect to the display and analysis of data, the chapter examines cartography, visualization, geographic information systems (GISs), and spatial statistics. With respect to observation, the chapter addresses two extremes on the geographic scales of observation: local fieldwork and remote sensing. This chapter provides a brief discussion of contributions made by geographers to the development of techniques for observation, display, and analysis of geographic data.
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