Hyper-resolution monitoring of urban flooding with social media and crowdsourcing data

Ruo Qian Wang, Huina Mao, Yuan Wang, Chris Rae, Wesley Shaw

Research output: Contribution to journalArticle

52 Citations (Scopus)
363 Downloads (Pure)

Abstract

Hyper-resolution datasets for urban flooding are rare. This problem prevents detailed flooding risk analysis, urban flooding control, and the validation of hyper-resolution numerical models. We employed social media and crowdsourcing data to address this issue. Natural Language Processing and Computer Vision techniques are applied to the data collected from Twitter and MyCoast (a crowdsourcing app). We found these big data based flood monitoring approaches can complement the existing means of flood data collection. The extracted information is validated against precipitation data and road closure reports to examine the data quality. The two data collection approaches are compared and the two data mining methods are discussed. A series of suggestions is given to improve the data collection strategy.

Original languageEnglish
Pages (from-to)139-147
Number of pages9
JournalComputers and Geosciences
Volume111
Early online date8 Nov 2017
DOIs
Publication statusPublished - Feb 2018

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