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Geographic Information System and Remote Sensing Applications in Flood Hazards Management: A Review

Dano Umar, Lawal and Matori, Abdul Nasir and Hashim, Ahmad Mustafa and Chandio, Imtiaz Ahmed and Sabri, Soheil and Balogun, Abdul Lateef and Abba, Haruna Ahmed (2011) Geographic Information System and Remote Sensing Applications in Flood Hazards Management: A Review. [Citation Index Journal]

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Official URL: http://maxwellsci.com/jp/j2p.php?jid=RJASET

Abstract

The purpose of this study is to examine and review the various applications of GIS and remote sensing tools in flood disaster management as opposed to the conventional means of recording the hydrological parameters, which in many cases failed to capture an extreme event. In the recent years, GIS along with remote sensing has become the key tools in flood disaster monitoring and management. Advancement particularly in the area of remote sensing application has developed gradually from optical remote sensing to microwave or radar remote sensing, which has proved a profound capability of penetrating a clouded sky and provided all weather capabilities compared to the later (optical remote sensing) in flood monitoring, mapping, and management. The main concern here is delineation of flood prone areas and development of flood hazard maps indicating the risk areas likely to be inundated by significant flooding along with the damageable objects maps for the flood susceptible areas. Actually, flood depth is always considered to be the basic aspect in flood hazard mapping, and therefore in determining or estimating the flood depth, a Digital Elevation Model data (DEM)is considered to be the most appropriate means of determining the flood depth from a remotely sensed data or hydrological data. Accuracy of flood depth estimation depends mainly on the resolution of the DEM data in a flat terrain and in the regions that experiences monsoon seasons such as the developing countries of Asia where there is a high dependence on agriculture, which made any effort for flood estimation or flood hazard mapping difficult due to poor availability of high resolution DEM. More so the idea of Web-based GIS is gradually becoming a reality, which plays an important role in the flood hazard management. Therefore, this paper provides a review of applications of GIS and remote sensing technology in flood disaster monitoring and management.

Item Type:Citation Index Journal
Uncontrolled Keywords:Digital elevation model, flood hazard management, hazard mapping, web-based GIS
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Departments / MOR / COE:Departments > Civil Engineering
ID Code:6638
Deposited By: AP Ahmad Mustafa Hashim
Deposited On:21 Nov 2011 06:29
Last Modified:31 Mar 2014 17:27

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