Spatial Analytic Hierarchy Process Model for Flood Forecasting: An Integrated Approach

7th IGRSM International Remote Sensing & GIS Conference and Exhibition

地球科学;计算机科学

Matori, Abd Nasir^1 ; Lawal, Dano Umar^1 ; Yusof, Khamaruzaman Wan^1 ; Hashim, Mustafa Ahmad^1 ; Balogun, Abdul-Lateef^1

Civil Engineering Department, Universiti Teknologi PETRONAS, Malaysia^1

关键词: Analytic hierarchy;    Analytic hierarchy process (ahp);    Drainage density;    Flood forecasting;    Flood hazard assessment;    Forecasting tools;    Integrated approach;    Subsurface conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/20/1/012029/pdf
DOI  :  10.1088/1755-1315/20/1/012029

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Various flood influencing factors such as rainfall, geology, slope gradient, land use, soil type, drainage density, temperature etc. are generally considered for flood hazard assessment. However, lack of appropriate handling/integration of data from different sources is a challenge that can make any spatial forecasting difficult and inaccurate. Availability of accurate flood maps and thorough understanding of the subsurface conditions can adequately enhance flood disasters management. This study presents an approach that attempts to provide a solution to this drawback by combining Geographic Information System (GIS)-based Analytic Hierarchy Process (AHP) model as spatial forecasting tools. In achieving the set objectives, spatial forecasting of flood susceptible zones in the study area was made. A total number of five set of criteria/factors believed to be influencing flood generation in the study area were selected. Priority weights were assigned to each criterion/factor based on Saaty's nine point scale of preference and weights were further normalized through the AHP. The model was integrated into a GIS system in order to produce a flood forecasting map.