Map Production Using Aerial Photographs / Satellite Imagery - Main Users / Purpose

files/images_static/user.jpg Technical staff, planners and GIS technicians.

Ultimately, detailed regional or local level development plans require the use of accurate and updated maps. In regions where the maps are either out of date or they are not available updated maps can be produced using satellite images and/or aerial photographs. Satellite images can be acquired relatively cheaply on the international market in contrast to aerial photography that often requires specialized flights to be undertaken. The objective of procuring the satellite images is to acquire adequate data (i.e. in terms of scale and quality) needed for the mapping exercises that are both economically viable and efficient. The subsequent production of maps can be achieved in a short period of time at a low cost in terms of personnel and resources. However, there is a clear relationship between availability of time, technical capability, resources available and the ultimate quality of the maps produced. The planner needs to strike a careful balance between these variables.


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