Windstorm Hazardous Area Mapping Using Multi-Criteria Evaluation Techniques of Fuzzy Logic Approach

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Author: Zakaria N.H.; Salleh S.A.; Chan A.; Ooi M.C.G.; Isa N.A.; Latif Z.A.
• Format: Conference paper
• Language: English
• Published: Institute of Physics 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85169581903&doi=10.1088%2f1755-1315%2f1217%2f1%2f012036&partnerID=40&md5=c45bb062c84f0e2e069da270d8b12b75

The goal of this study to determine the most exposed area to windstorm event using fuzzy logic approach. Respond to the Sustainable Development Goal (SDG) 11 and 13, Sustainable Cities and Communities and Climate Action, this study was conducted to establish the preparedness in high-risk region. To achieve this goal, the influencing indicator was identified based on previous study. The related indicator comprises of wind speed, temperature, relative humidity, precipitation, slope, population, road, and land use. Fuzzy membership model implemented to aggregating the indicator to standard value 0 to 1. A fuzzy model was used as a method to integrate the constructed index values, and a frequency ratio was used to determine the fuzzy membership value. Different fuzzy operators (AND, OR, SUM, PRODUCT, and GAMMA) are applied to generate windstorm hazard map. The fuzzy gamma ( 3) operator, with γequal to 0.9, was used to create wind hazard map into different zones of five relative sensitivity classes: very high, high, moderate, low, and very low. 10.65% of study area has very high sensitivity towards windstorm hazard which distributed at high area (Banjaran titiwangsa), West Coast area (Pahang and West Johor) and north area (Perlis). In addition, some part in the surrounding region of Peninsular Malaysia were also identified as windstorm hazard due to the dense of urban area such at Johor Bharu and Klang Valley area. 7.20% of the study area has very-low windstorm hazard and is mainly located in the middle part. © 2023 Published under licence by IOP Publishing Ltd.