Abstract
Natural hazard-related disasters are disruptive events with significant impact on people, communities, buildings, infrastructure, animals, agriculture, and environmental assets. The exponentially increasing anthropogenic activities on the planet have aggregated the climate change and consequently increased the frequency and severity of these natural hazard-related disasters, and consequential damages in cities. The digital technological advancements, such as monitoring systems based on fusion of sensors and machine learning, in early detection, warning and disaster response systems are being implemented as part of the disaster management practice in many countries and presented useful results. Along with these promising technologies, crowdsourced social media disaster big data analytics has also started to be utilized. This study aims to form an understanding of how social media analytics can be utilized to assist government authorities in estimating the damages linked to natural hazard-related disaster impacts on urban centers in the age of climate change. To this end, this study analyzes crowdsourced disaster big data from Twitter users in the testbed case study of Australian states and territories. The methodological approach of this study employs the social media analytics method and conducts sentiment and content analyses of location-based Twitter messages (n = 131,673) from Australia. The study informs authorities on an innovative way to analyze the geographic distribution, occurrence frequency of various disasters and their damages based on the geo-tweets analysis.
Highlights
IntroductionIntroduction iationsThe catastrophic impacts of climate change are global. some regions of the world are, more sensitive to the anthropogenic climate change impacts [1,2].For instance, Australia is one of these sensitive regions [3]
Introduction iationsThe catastrophic impacts of climate change are global
As the research question presents social media analytics as a metric for estimating disaster damage in property and land, it was pertinent that the case study centers upon a geographical area in which it is not uncommon for natural hazard-related disasters to occur, as well as one whose population included a significant portion of social media users
Summary
Introduction iationsThe catastrophic impacts of climate change are global. some regions of the world are, more sensitive to the anthropogenic climate change impacts [1,2].For instance, Australia is one of these sensitive regions [3]. The catastrophic impacts of climate change are global. Some regions of the world are, more sensitive to the anthropogenic climate change impacts [1,2]. Australia’s range of unique climates has contributed to the country’s history of diverse natural hazard-related disasters, including, bushfires, flooding, hurricanes, cyclones, earthquakes, and tsunamis [4], where a natural hazard-related disaster is defined as “an extreme event that occurs naturally and causes harm to humans or to other things that we care about, though usually the focus is on humans—which, we might note, is anthropocentric” [5]. Natural hazard-related disasters have presented increasingly significant challenges to the country’s urban and rural environments, as a result of higher density development and population growth.
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