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An assessment of the diversity in scenario-based tsunami forecasts for the Indian Ocean

Greenslade, DJM and Annunziato, A and Babeyko, AY and Burbidge, DR and Ellguth, E and Horspool, N and Srinivasa Kumar, T and Kumar, CHP and Moore, CW and Rakowsky, N and Riedlinger, T and Ruangrassamee, A and Srivihok, P and Titov, VV (2013) An assessment of the diversity in scenario-based tsunami forecasts for the Indian Ocean. Continental Shelf Research.

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This work examines the extent to which tsunami forecasts from different numerical forecast systems might be expected to differ under real-time conditions. This is done through comparing tsunami amplitudes from a number of existing tsunami scenario databases for eight different hypothetical tsunami events within the Indian Ocean. Forecasts of maximum tsunami amplitude are examined at 10 output points distributed throughout the Indian Ocean at a range of depths. The results show that there is considerable variability in the forecasts and on average, the standard deviation of the maximum amplitudes is approximately 62 of the mean value. It is also shown that a significant portion of this diversity can be attributed to the different lengths of the scenario time series. These results have implications for the interoperability of Regional Tsunami Service Providers in the Indian Ocean. © 2013 Elsevier Ltd.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Tsunami; Tsunami forecast; Indian Ocean; Intercomparison; Real-time
Subjects: Oceanography > oceanography
Depositing User: INCOIS Library
Date Deposited: 06 Dec 2013 14:40
Last Modified: 06 Dec 2013 14:40

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