TY - JOUR
T1 - Sensitivity and uncertainty analyses of retention performance of green roofs considering aleatory and epistemic uncertainties
AU - You, L. W.
AU - Tung, Y. K.
AU - Yoo, C. S.
N1 - Funding Information:
The study is supported under the Joint Research Cooperative Program for the Foundation of Korea (2016K2A9A1A06922023) and the Ministry of Science Taiwan (MOST 105–2923-E-009-004-MY2).
PY - 2018/11/5
Y1 - 2018/11/5
N2 - A methodological framework is presented to integrate epistemic uncertainties into an aleatory-based probabilistic green roof model. In doing so, the sensitivity and uncertainty of the mean and standard deviation of retention ratio are assessed. Regression-based global sensitivity analysis showed that the first-order effect of model parameters plays the dominant role over the higher-order effect in contributing the overall uncertainty of statistical moments of retention ratio from the probabilistic green roof model used. Inclusion of epistemic uncertainties allows comprehensive evaluation of uncertainty associated with the performance of a green roof system, which further facilitates risk-based design of green roof systems.
AB - A methodological framework is presented to integrate epistemic uncertainties into an aleatory-based probabilistic green roof model. In doing so, the sensitivity and uncertainty of the mean and standard deviation of retention ratio are assessed. Regression-based global sensitivity analysis showed that the first-order effect of model parameters plays the dominant role over the higher-order effect in contributing the overall uncertainty of statistical moments of retention ratio from the probabilistic green roof model used. Inclusion of epistemic uncertainties allows comprehensive evaluation of uncertainty associated with the performance of a green roof system, which further facilitates risk-based design of green roof systems.
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U2 - 10.1088/1755-1315/191/1/012001
DO - 10.1088/1755-1315/191/1/012001
M3 - Conference article
AN - SCOPUS:85058127908
SN - 1755-1307
VL - 191
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
IS - 1
M1 - 012001
T2 - 4th International Conference on Water Resource and Environment, WRE 2018
Y2 - 17 July 2018 through 21 July 2018
ER -