Category Archives: Geography Practicals/Lab and Statistical Techniques

Defining Spatial Data

Geographic position refers to the fact that each feature has a location that must be specified in a unique way. To specify the position in an absolute way a coordinate system is used. For small areas, the simplest coordinate system … Continue reading

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Aspect of Map Projection

The aspect describes the mutual position of the axis of the earth and the axis of the projection. The axis of the earth (black) and the axis of a projection with transverse aspect (red) Axis of a Projection The axis … Continue reading

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Contours: An Overview

Contour –  Contour is an imaginary line on ground joining points of equal or constant elevations. contours are important to draw the topographical maps in which vertical distances are also shown using the contour lines. Contour interval: Vertical distance between any … Continue reading

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Thematic Maps and Thematic Mapping Techniques

A thematic map is a type of map specifically designed to “show a particular theme connected with a specific geographic area. Unlike reference maps, which tell us where something is, thematic maps tell us how something is. There are a number of visualization techniques and … Continue reading

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