کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6772542 | 512778 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Epistemic uncertainty in on-site earthquake early warning on the use of PGV-PD3 empirical models
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
From the literature, we found that PGV-PD3 regressions for on-site earthquake early warning (EEW) can be quite different depending on the presumption whether or not PGV-PD3 data from different regions should be “mixable” in regression analyses. As a result, this becomes a source of epistemic uncertainty in the selection of a PGV-PD3 empirical relationship for on-site EEW. This study is aimed at examining the influence of this epistemic uncertainty on EEW decision-making, and demonstrating it with an example on the use of PGV-PD3 models developed with data from Taiwan, Japan, and Southern California. The analysis shows that using the “global” PGV-PD3 relationship for Southern California would accompany a more conservative EEW decision-making (i.e., early warning is activated more frequently) than using the local empirical model developed with the PGV-PD3 data from Southern California only. However, the influence of this epistemic uncertainty on EEW is not that obvious for the cases of Taiwan and Japan.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 65, October 2014, Pages 126-130
Journal: Soil Dynamics and Earthquake Engineering - Volume 65, October 2014, Pages 126-130
نویسندگان
J.P. Wang, Yih-Min Wu,