GSTDTAP  > 资源环境科学
DOI10.1002/2017WR021560
Extending the Applicability of the Generalized Likelihood Function for Zero-Inflated Data Series
Oliveira, Debora Y.1; Chaffe, Pedro L. B.2; Sa, Joao H. M.1
2018-03-01
发表期刊WATER RESOURCES RESEARCH
ISSN0043-1397
EISSN1944-7973
出版年2018
卷号54期号:3页码:2494-2506
文章类型Article
语种英语
国家Brazil
英文摘要

Proper uncertainty estimation for data series with a high proportion of zero and near zero observations has been a challenge in hydrologic studies. This technical note proposes a modification to the Generalized Likelihood function that accounts for zero inflation of the error distribution (ZI-GL). We compare the performance of the proposed ZI-GL with the original Generalized Likelihood function using the entire data series (GL) and by simply suppressing zero observations (GL(y>0)). These approaches were applied to two interception modeling examples characterized by data series with a significant number of zeros. The ZI-GL produced better uncertainty ranges than the GL as measured by the precision, reliability and volumetric bias metrics. The comparison between ZI-GL and GL(y>0) highlights the need for further improvement in the treatment of residuals from near zero simulations when a linear heteroscedastic error model is considered. Aside from the interception modeling examples illustrated herein, the proposed ZI-GL may be useful for other hydrologic studies, such as for the modeling of the runoff generation in hillslopes and ephemeral catchments.


英文关键词uncertainty quantification Bayesian inference likelihood function zero-inflation
领域资源环境
收录类别SCI-E
WOS记录号WOS:000430364900060
WOS关键词MONTE-CARLO-SIMULATION ; MODEL CALIBRATION ; UNCERTAINTY ; ERRORS ; HETEROSCEDASTICITY ; AUTOCORRELATION ; INFERENCE ; JOINT
WOS类目Environmental Sciences ; Limnology ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/21764
专题资源环境科学
作者单位1.Univ Fed Santa Catarina, Grad Program Environm Engn, Florianopolis, SC, Brazil;
2.Univ Fed Santa Catarina, Dept Sanit & Environm Engn, Florianopolis, SC, Brazil
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GB/T 7714
Oliveira, Debora Y.,Chaffe, Pedro L. B.,Sa, Joao H. M.. Extending the Applicability of the Generalized Likelihood Function for Zero-Inflated Data Series[J]. WATER RESOURCES RESEARCH,2018,54(3):2494-2506.
APA Oliveira, Debora Y.,Chaffe, Pedro L. B.,&Sa, Joao H. M..(2018).Extending the Applicability of the Generalized Likelihood Function for Zero-Inflated Data Series.WATER RESOURCES RESEARCH,54(3),2494-2506.
MLA Oliveira, Debora Y.,et al."Extending the Applicability of the Generalized Likelihood Function for Zero-Inflated Data Series".WATER RESOURCES RESEARCH 54.3(2018):2494-2506.
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