Date and Time: 1st Apr 2017 (Saturday) 3.30pm
Speaker: Zaharil Dzulkafly
Coordinator: Chan Kai Soon 0125315670 firstname.lastname@example.org
Geographical Information System (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present geographic data. With GIS, comparisons can be made for locations of different things in order to discover how they relate to each other. For example, using GIS, a single map could include sites that produce pollution, such as illegal duck and pig farms, and sites that are sensitive to pollution, such as pools located nearby. Such a map would help people determine which and how much of the wetlands are most at risk. GIS can include information about land, such as the layout and size of forest reserves, location and flow of streams and different kinds of vegetation.
Complex analysis with high precision can be made with GIS, for example, a green area is proposed to be gazetted as a protected area with these criteria taken into consideration;
1. must be at least 1000 hectares in size with at least three quarter is covered in natural vegetation;
2. currently no development within and at least 500 meters from its perimeter;
3. rivers of at least 5 km in total length with at least 50% of them originating within the area;
4. having altitude difference of at least 300 meters.
While in the earlier days GIS was very technical and only certain organizations were able to use it, it is becoming more user friendly. While some comprehensive GIS software can cost tens of thousands of Ringgit, there are also some simple ones which are free of charge for the public, NGOs etc. While some geographical datasets can be very expensive and restricted, there are also some provided for free for non-commercial purpose such as Google Earth satellite imagery and Google Maps. With certain devices affordable by the public such as handheld GPS, even an average public person can perform some GIS analysis and task.
Light refreshments will be served after the talk.