Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017WR022254 |
Evaluation of Nonparametric and Parametric Statistical Procedures for Modeling and Prediction of Cluster-Correlated Hydroclimatic Data | |
Singh, Sarmistha1; Abebe, Ash2; Srivastava, Puneet3 | |
2018-09-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:9页码:6948-6964 |
文章类型 | Article |
语种 | 英语 |
国家 | India; USA |
英文摘要 | Climate and hydrologic variables such as temperature, precipitation, streamflow, and baseflow generally do not follow Gaussian distribution due to the presence of outliers and heavy tails. Therefore, they are usually analyzed using the nonparametric Wilcoxon rank sum test rather than parametric methods like classical t tests and analysis of variance. Furthermore, in addition to having a non-Gaussian distribution, these data exhibit monthly/seasonal variability, which leads to within month/season cluster correlation. In this study, a nonparametric procedure, called joint rank fit (JRFit), for analyzing cluster-correlated data was implemented and compared against traditional methods such as restricted maximum likelihood, least absolute deviations, and rank-based fit (a model-based extension of Wilcoxon rank sum) for studying the coupled effect of the phases of El Nino-Southern Oscillation and Atlantic Multidecadal Oscillation on baseflow levels. The results from a large Monte Carlo simulation experiment showed that JRFit was more efficient than the other three methods for data with (i) high variability, (ii) outliers due to contamination, or (iii) strong monthly/seasonal correlation. The efficiency gain of JRFit was up to 50% compared to restricted maximum likelihood for heavy-tailed and highly correlated data. Predictive performance evaluated using the mean absolute prediction error and mean prediction standard error from an out-of-sample cross-validation study showed JRFit to be optimal for providing predictions of baseflow on the basis of the phases of El Nino-Southern Oscillation and Atlantic Multidecadal Oscillation. Thus, it is recommended that JRFit be implemented in hydroclimatic studies to provide powerful inference when there is evidence of clustering in the data. |
英文关键词 | joint rank fit Wilcoxon rank sum restricted maximum likelihood baseflow El Nino-Southern Oscillation |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448088100061 |
WOS关键词 | EL-NINO/SOUTHERN OSCILLATION ; NINO-SOUTHERN-OSCILLATION ; REGRESSION-COEFFICIENTS ; CLIMATE VARIABILITY ; ROBUST ESTIMATION ; ENSO INFLUENCES ; LINEAR-MODELS ; UNITED-STATES ; STREAMFLOW ; PRECIPITATION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19987 |
专题 | 资源环境科学 |
作者单位 | 1.Indian Inst Technol, Dept Civil Engn, Palakkad, India; 2.Auburn Univ, Dept Math & Stat, Auburn, AL 36849 USA; 3.Auburn Univ, Biosyst Engn, Auburn, AL 36849 USA |
推荐引用方式 GB/T 7714 | Singh, Sarmistha,Abebe, Ash,Srivastava, Puneet. Evaluation of Nonparametric and Parametric Statistical Procedures for Modeling and Prediction of Cluster-Correlated Hydroclimatic Data[J]. WATER RESOURCES RESEARCH,2018,54(9):6948-6964. |
APA | Singh, Sarmistha,Abebe, Ash,&Srivastava, Puneet.(2018).Evaluation of Nonparametric and Parametric Statistical Procedures for Modeling and Prediction of Cluster-Correlated Hydroclimatic Data.WATER RESOURCES RESEARCH,54(9),6948-6964. |
MLA | Singh, Sarmistha,et al."Evaluation of Nonparametric and Parametric Statistical Procedures for Modeling and Prediction of Cluster-Correlated Hydroclimatic Data".WATER RESOURCES RESEARCH 54.9(2018):6948-6964. |
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