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Journal of the Korean Society of Hazard Mitigation 2014;14(4):261-266.
Published online August 31, 2014.
Application of Principal Component Analysis in the Evaluation of the Damages Incurred by Ondoy and Perpeng`s Lash to Philippines
Application of Principal Component Analysis in the Evaluation of the Damages Incurred by Ondoy and Perpeng`s Lash to Philippines
Imee V. Necesito, Insang Yu, Sangman Jeong
Abstract
One of the adverse impacts of climate change is excessive rainfall patterns, most of the time creating flood disasters. Flood disaster is one of the most serious natural hazards for human societies which cause damages to properties as well as loss of human lives thus creating great impacts on the economic status of the state. A country, such as the Philippines, which is bounded by limited funds, is most likely to have a public outcry in times of catastrophes like intense floods. This paper examines the impacts of the 2009 Ondoy and Pepeng flood as well as used principal component analysis to derive components that were capable of explaining the 79.38% of the total variance in the flood damage. Data from the studies funded by the different institutions both local and international were used in order to evaluate the damages and losses on the economic and social perspective of the country during the said two catastrophic events.
Key Words: Flood damage; Ondoy flood; Pepeng flood; Philippines; Principal component analysis
요지
과도한 강우로 인한 홍수 피해의 증가는 기후변화에 의한 악영향 중 하나이다. 인간의 생명뿐만 아니라 재산에도 막대한 피해를 주는 홍수는 인간사회에 가장 심각한 피해를 주는 자연재해 중 하나이며 지자체의 재정에도 막대한 해를 입힌다. 필리핀과 같이 자금의 운영이 제한된 국가는 극심한 홍수와 같은 재해 발생시 막대한 피해가 발생한다. 본 연구에서는 2009년 발생한 태풍인 Ondoy와 Pepeng에 의한 홍수피해 효과에 대해 분석하였으며 홍수피해 총 변량중 79.38%를 설명할 수 있는 성분을 유도하기 위해 주성분분석을 사용하였다. 국내와 국외의 서로 다른 연구기관에 의해 지원된 연구 자료는 두 홍수사상 동안 경제적 사회적인 피해와 손실을 평가하기 위해 사용되었다.
핵심용어: 홍수피해; 필리핀; 주성분분석
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