Tsunami Early Warning System based on Real-time Measurements of Hydro-acoustic Waves

Cecioni, Claudia; Bellotti, Giorgio; Romano, Alessandro; Abdolali, Ali; Sammarco, Paolo; Franco, Leopoldo

doi:10.1016/j.proeng.2014.02.035

Cited by 39 publications

(29 citation statements)

References 19 publications

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“…Therefore, many efforts have been made by those countries exposed to a tsunami threat and the wider international community to minimize the impact on communities through more effective preparedness and the issuing of warnings. Tsunami, early warning systems, are recognized as the most effective way of predicting the impact of tsunami and issue warnings to people, and thereby to minimize the damage [4]. Its prime objective is to alert coastal communities about the possibility of the tsunami [5].…”

Section: A What Is a Tsunami Early Warning System And Why?mentioning

confidence: 99%

A Study of The Upstream-downstream Interface in End-to-end Tsunami Early Warning and Mitigation Systems

Sakalasuriya

Amaratunga

Haigh

et al. 2018

Int. J. Adv. Sci. Eng. Inf. Technol.

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The tsunami early warning and mitigation systems are typically used to detect the tsunami inundation before the impact so that vulnerable communities can be alerted and the damage can be minimized. These systems typically entail upstream and downstream processes, starting from the detection of tsunami wave and finishing with safe evacuation of people. There is an interface between upstream and downstream mechanisms where the warning is issued and the decision to evacuate people are taken. In individual countries, the system by which the information is disseminated from a national point to individual communities varies significantly. Due to the complex nature of different administrative systems, it is difficult to understand who takes the decision to evacuate, at which point and how is it taken. This paper is the first part of a more extensive study undertaken to understand and evaluate the interface between the upstream and downstream mechanisms of the tsunami early warning system. The objective of the paper is to present the findings of a literature review conducted as an initial step to the above study and to understand state of the art and practices related to the interface of an end-to-end tsunami warning and mitigation system. The literature is grouped and analyzed using the conceptual analysis method, in order to understand the concepts related to the tsunami early warning system, mainly focusing on the issues pertaining to the interface. Through the literature review, a conceptual framework is developed, presenting nine concepts and their relationships within the interface. This conceptual framework will serve as a strong theoretical foundation for the future steps to be taken under the above study.

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Section: A What Is a Tsunami Early Warning System And Why?mentioning

confidence: 99%

A Study of The Upstream-downstream Interface in End-to-end Tsunami Early Warning and Mitigation Systems

Sakalasuriya

Amaratunga

Haigh

et al. 2018

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

show abstract

“…Tsunamis are phenomena generated by underwater earthquakes or landslides and their fast propagation can generate very large waves that potentially produce inundations with tragic consequences [25] in human lives, infrastructure and capacity among others. Tsunami Early Warnings Systems (TEWS) are an effective tool to mitigate the impact on coastal border and avoid human victims caused by the waves.…”

Section: A Study Case: Tsunami Early Warning Systemmentioning

confidence: 99%

A methodological approach to apply security tactics in software architecture design

Pedraza-García

Astudillo

Correal

2014

2014 IEEE Colombian Conference on Communications and Computing (COLCOM)

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Architectural tactics are decisions to efficiently solve quality attributes in software architecture. Security is a complex quality property due to its strong dependence on the application domain. However, the selection of security tactics in the definition of software architecture is guided informally and depends on the experience of the architect. This study presents a methodological approach to address and specify the quality attribute of security in architecture design applying security tactics. The approach is illustrated with a case study about a Tsunami Early Warning System.

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“…Hydro‐acoustic waves travel much faster than the tsunami itself, i.e., at the speed of sound in water; their presence in a pressure record therefore can anticipate the arrival of the tsunami. Several investigations have been carried out [ Nosov , ; Stiassnie , ; Chierici et al ., ; Cecioni et al ., ; Abdolali et al ., ] to study the physical characteristics of hydro‐acoustic waves, clarifying that there exists a relationship between these pressure waves and their tsunamigenic source. Low‐frequency hydro‐acoustic waves generated by seabed motion have been measured during the Tokachi‐Oki 2003 tsunami event [ Nosov et al ., ], by the JAMSTEC (Japan Agency for Marine‐earth Sciences and TEChnology) observatory.…”

Section: Introductionmentioning

confidence: 98%

Hydro‐acoustic and tsunami waves generated by the 2012 Haida Gwaii earthquake: Modeling and in situ measurements

et al. 2015

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Detection of low-frequency hydro-acoustic waves as precursor components of destructive tsunamis can enhance the promptness and the accuracy of Tsunami Early Warning Systems (TEWS). We reconstruct the hydro-acoustic wave field generated by the 2012 Haida Gwaii tsunamigenic earthquake using a 2-D horizontal numerical model based on the integration over the depth of the compressible fluid wave equation and considering a mild sloped rigid seabed. Spectral analysis of the wave field obtained at different water depths and distances from the source revealed the frequency range of low-frequency elastic oscillations of sea water. The resulting 2-D numerical model gave us the opportunity to study the hydro-acoustic wave propagation in a large-scale domain with available computers and to support the idea of deep-sea observatory and data interpretation. The model provides satisfactory results, compared with in situ measurements, in the reproduction of the long-gravitational waves. Differences between numerical results and field data are probably due to the lack of exact knowledge of sea bottom motion and to the rigid seabed approximation, indicating the need for further study of poro-elastic bottom effects.

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Tsunami Early Warning System based on Real-time Measurements of Hydro-acoustic Waves

Cited by 39 publications

References 19 publications

A Study of The Upstream-downstream Interface in End-to-end Tsunami Early Warning and Mitigation Systems

A Study of The Upstream-downstream Interface in End-to-end Tsunami Early Warning and Mitigation Systems

A methodological approach to apply security tactics in software architecture design

Hydro‐acoustic and tsunami waves generated by the 2012 Haida Gwaii earthquake: Modeling and in situ measurements

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