Multi-level emulation of tsunami simulations over Cilacap, South Java, Indonesia
Multi-level emulation of tsunami simulations over Cilacap, South Java, Indonesia
复制标题
印度尼西亚南爪哇芝拉扎海啸模拟的多级模拟
DOI:
10.1007/s10596-022-10183-1
复制
发表时间:
2022
影响因子:
2.5
通讯作者:
Ehara A
中科院分区:
文献类型:
--
作者:
Ehara A
Carrying out a Probabilistic Tsunami Hazard Assessment (PTHA) requires a large number of simulations done at a high resolution. Statistical emulation builds a surrogate to replace the simulator and thus reduces computational costs when propagating uncertainties from the earthquake sources to the tsunami inundations. To reduce further these costs, we propose here to build emulators that exploit multiple levels of resolution and a sequential design of computer experiments. By running a few tsunami simulations at high resolution and many more simulations at lower resolutions we are able to provide realistic assessments whereas, for the same budget, using only the high resolution tsunami simulations do not provide a satisfactory outcome. As a result, PTHA can be considered with higher precision using the highest spatial resolutions, and for impacts over larger regions. We provide an illustration to the city of Cilacap in Indonesia that demonstrates the benefit of our approach.
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影响因子:
3.4
作者:
Snelling, Branwen;Neethling, Stephen;Piggott, Matthew
通讯作者:
Piggott, Matthew
DOI:
10.1002/essoar.10502534.1
发表时间:
2020
期刊:
--
影响因子:
--
作者:
Gopinathan D
通讯作者:
Gopinathan D
影响因子:
2
作者:
Beck, Joakim;Guillas, Serge
通讯作者:
Guillas, Serge
影响因子:
5.2
作者:
M. Heidarzadeh;S. Murotani;K. Satake;T. Takagawa;Tatsuhiko Saito
通讯作者:
Tatsuhiko Saito
影响因子:
--
作者:
Juan F. Rodríguez;J. Macías;M. Castro;Marc de la Asunción;C. Sánchez
通讯作者:
C. Sánchez