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Table des matières
ILWIS 3.0
CHAPTER 1
Introduction to ILWIS 3.0
ILWIS is an acronym for the Integrated Land and Water Information System. It is a Geographic Information System (GIS) with Image Processing capabilities. ILWIS has been developed by the International Institute for Aerospace Survey and Earth Sciences (ITC), Enschede, The Netherlands. As a GIS and Remote Sensing package, ILWIS allows you to input, manage, analyze and present geo-graphical data. From the data you can generate information on the spatial and temporal patterns and processes on the earth surface.
Geographic Information Systems are nowadays indispensable in many different fields of applications to assist in the decision making process. Most decisions are influenced by some facts of geography. What is at a certain location? Where are the most suitable sites? Where, when and which changes took place? Here are some examples.
- In land use planning, GIS is used to evaluate the consequences of different scenarios in the development of a region.
- In geology, GIS is used to find the most suitable places for mining, or to determine areas subject to natural hazards.
- Areas that may be affected by pollution are analyzed using GIS functions.
- Extensions of cities are planned, based on analysis of many spatial and temporal patterns, etc.
In order to be able to make the right decisions, access to different sorts of information is required. The data should be maintained and updated and should be used in the analysis to obtain useful information. In this process ILWIS can be an important tool.
This chapter is intended to introduce you to ILWIS, and specifically to the user interface. You will learn how to start ILWIS, the functions of the Main window and how to open maps and tables.
