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Introduction to GIS and GeoTWAIN

Feb 10, 2012 04:00 pm to 06:00 pm
Organizer: HRA Training

Geographic information is qualitative or quantitative information that can be located on the surface of the earth. It is multidimensional, requiring at least two coordinates to define location and at least three if the item being located in space is also being located in time.

Geographic information system technology enables researchers to combine spatial and historical data from various sources into a single set, which enhances its analytical potential, especially when dealing with high volumes of data. In humanities and social sciences GIS creates a unique possibility to unify completely different sources, which due to radical differences in form were not suitable for joint usage and comparison on the substantive level. In addition, GIS makes it possible to analyze spatial changes over time, i.e., to observe processes in their dynamics.

The organizing principle in all GIS is location, as encoded in geographical coordinates such as degrees of latitude and longitude. Once points, lines, polygons, and pixel cells are assigned coordinates, a process called georeferencing, one can combine them in layers with any other features or surfaces that are registered to the same location.

During this workshop we will introduce the process of georeferencing in a manner accessible to a general educated audience. GeoTWAIN, a tool developed at Heidelberg University, enables every researcher to create his own GIS with no additional training required.  

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