DOI: 10.5176/2251-1679_CGAT13.18
Authors: Ma. Regina E. Estuar, Paolo Guillermo M. Agloro, Nilda S. Eliquen
Abstract:
In 2009, consecutive typhoons Ketsana (Ondoy) and Parma (Pepeng) hit the country with destruction amounting to USD 852 million [2]. The following year, typhoon Megi (Juan) cost the country USD 193 million [3]. In 2011, Typhoon Washi (Sendong) hit the country with damage amounting to USD 32.9 million [4].The most recent intensified Southwest Monsoon rains, locally called Habagat caused damage to infrastructure and agriculture amounting to USD 53 million [5].
At the onset of Ketsana and the subsequent typhoons, ordinary citizens have resorted to social media to narrate disaster experiences. This study looked into meaningful patterns derived from tweets made during typhoon disasters. We compare variances within and among three major urban flooding disasters. Text mining, time series analysis and principal component analysis were used to derive meaningful patterns from disaster tweets. Results show that there is a change in quantity and quality of tweet conversations within and between disaster events.
Terms that remain common within and between are crucial in understanding how Filipinos recognize and understand disaster events. The changes in themes over time also shows dependency on the time gap between disasters. Lastly, with more and more urban flooding disasters happening in the Metro, citizens have become more actively engaged in disaster monitoring and mitigation.
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