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Space-Time Cluster Analysis of Accidental Oil Spills in Rivers State, Nigeria, 2011–2019

Computers, Materials & Continua 2021年第3期66卷 3065-3074页

作者： Sami Ullah Hanita Daud Nooraini Zainuddin sarat cdass Alamgir Khalil Hadi Fanaee-T Ilyas Khan Department of Fundamental&Applied Sciences Universiti Teknologi PETRONAS32610Seri IskandarPerakMalaysia School of Mathematical and Computer Sciences Heriot-Watt University Malaysia62200PutrajayaMalaysia Department of Statistics University of PeshawarPakistan Center for Applied Intelligent Systems Research(CAISR) Halmstad UniversityHalmstadSweden Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh City72915Vietnam

Oil spills cause environmental pollution with a serious threat to local communities and sustainable *** oil spills can be modelled as a stochastic process where each oil spill event is described by its spatial locations and incidence-time and hence allow for space-time cluster *** cluster analysis can detect space-time pattern distribution of oil spills which can be useful for implementing preventive measures and evidence-based decision *** study aims to detect the space-time clusters of accidental oil spills in Rivers state,Nigeria through the Space-time Scan *** Space-time Scan Statistic was applied under the permutation model to the oil spill data(each for sabotage and operational oil spills)collected at Local Government Area(LGA)-level during the period from 2011 to *** results show that the sabotage oil spill clusters have covered most of the LGAs in the southern part of the state at the start of the study period and then in 2018–2019,it moved to the west covering a single *** operational oil spill clusters covered two neighboring LGAs in the *** addition,the temporal cluster of sabotage oil spills was seen in 2019 and operational oil spills in 2011–*** sabotage oil spills show an increasing trend with the maximum in 2019 while the operational oil spills show a decreasing trend with the minimum in *** findings assist in more effective decision-making for combating the environmental problems and controlling the future spill incidence in the cluster-regions.

关键词： Oil spills space-time clusters SaTScan^(™) permutation model Nigeria

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