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Study of outgoing longwave radiation anomalies associated with Haiti earthquake

Xiong, Pan, Shen, Xuhui, Bi, Yaxin, Kang, C.L., Chen, L.Z., Jing, F. and Chen, Y. (2010) Study of outgoing longwave radiation anomalies associated with Haiti earthquake. Natural Hazards and Earth System Sciences, 10 . pp. 2169-2178. [Journal article]

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DOI: 10.5194/nhess-10-2169-2010

Abstract

The paper presents an analysis by using the methods of Eddy field calculation mean and wavelet maxima to detect seismic anomalies within the outgoing longwave radiation (OLR) data based on time and space. The distinguishing feature of the method of Eddy field calculation mean is that we can calculate "the total sum of the difference value" of "the measured value" between adjacent points, which could highlight the singularity within data. The identified singularities are further validated by wavelet maxima, which using wavelet transformations as data mining tools by computing the maxima that can be used to identify obvious anomalies within OLR data. The two methods has been applied to carry out a comparative analysis of OLR data associated with the earthquake recently occurred in Haiti on 12 January 2010. Combining with the tectonic explanation of spatial and temporal continuity of the abnormal phenomena, the analyzed results have indicated a number of singularities associated with the possible seismic anomalies of the earthquake and from the comparative experiments and analyses by using the two methods, which follow the same time and space, we conclude that the singularities observed from 19 to 24 December 2009 could be the earthquake precursor of Haiti earthquake.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Mathematics
Research Institutes and Groups:Computer Science Research Institute
Computer Science Research Institute > Artificial Intelligence and Applications
ID Code:25629
Deposited By: Dr Yaxin Bi
Deposited On:18 Apr 2013 09:25
Last Modified:18 Apr 2013 09:25

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