The integration of Global Positioning Systems (GPS) and surveying packages for near real-time flood monitoring system

Abstract

Traditionally, maps are being used to provide information for planning, implementation and development. However, with the introduction of computerized techniques in map-making and space technology in surveying and mapping, the utility of map data can be coordinated in near real-time situation. Flooding is the common of all natural hazards and the magnitude of flooding can be only a few inches of water or it may cover a house to the roof top. Information about flooding is important for the public preparation and relief operation when floods occurred. Global Positioning System plays a significant role in providing data in area of floods since data can be achieved in a relatively short period and over long lines irrespective of terrain, intervisibility and weather. GPS couple with surveying packages that include geographical information system technology can result into effective, economic and efficient tool for storing, manipulating, and presenting spatial and non spatial information. This research have demonstrated the feasibility of using GPS in near real-time mapping for flood monitoring system especially in providing positions and heights of water level in floods area for updating data that give better understanding, monitoring and managing the disaster. The display of digital map on largest possible scale can enhance the integrated positioning systems made available with visualizing spatial data using a three dimensional in providing water volume on specific flood area and obtaining the analysis on the river. Digital elevation model (DEM) for the entire area using available surveying packages and a complete TIN-DEM modeling for flood monitoring system can be developed. From this technique, water volume on specific flood area and analysis of the river can be