Pub Date : 2023-11-21DOI: 10.1080/15715124.2023.2286893
Genet Weldearegay, B. Grum, Mulugeta Tekleyohannes, H. Goitom, A. Degu, Niguse Abebe, Haftu Yemane, B. Abebe
{"title":"Integrating multi-criteria decision analysis (MCDA) with kriging and entropy methods for optimising streamflow measurement in a scantly monitored river basin","authors":"Genet Weldearegay, B. Grum, Mulugeta Tekleyohannes, H. Goitom, A. Degu, Niguse Abebe, Haftu Yemane, B. Abebe","doi":"10.1080/15715124.2023.2286893","DOIUrl":"https://doi.org/10.1080/15715124.2023.2286893","url":null,"abstract":"","PeriodicalId":506383,"journal":{"name":"International Journal of River Basin Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-17DOI: 10.1080/15715124.2023.2284199
S. Haddout, K. L. Priya, J. C. Casila, A. M. Hoguane, I. Ljubenkov
{"title":"Salt Intrusion Length in Well-mixed Moroccan Estuaries during Infrequent Events: A Simple Empirical Equation Development","authors":"S. Haddout, K. L. Priya, J. C. Casila, A. M. Hoguane, I. Ljubenkov","doi":"10.1080/15715124.2023.2284199","DOIUrl":"https://doi.org/10.1080/15715124.2023.2284199","url":null,"abstract":"","PeriodicalId":506383,"journal":{"name":"International Journal of River Basin Management","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139265880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1080/15715124.2022.2079657
Melanie Meis, María Paula Llano, Daniela Rodriguez
ABSTRACT Extreme discharge events in the La Plata Basin need to be prevented. Simple approaches to the forecast problem such as SARIMA models usually predict average values correctly but fail to anticipate extreme events. As an approach to this problem, we used copula methods to model the distribution of the NIÑO 3.4 index and river streamflow pair. We used this to build a six-months forecast for streamflow 95% percentile using observed index values. We added this forecast as an exogenous variable in a SARIMAX model to predict discharge. Given that NIÑO events are usually correlated with extreme discharge events, we expected this model to improve the SARIMA model in predicting extreme events. When comparing both models, we effectively found that SARIMAX model is better than a SARIMA model both for 6- and 12-month discharge forecasts in periods when an El Niño event occurs, while it retains the same performance level when evaluated on all the span of the time series. This model emerges as a lightweight and easily implementable option for decision makers to anticipate extreme events and reduce the negative impacts that they generate.
{"title":"A statistical tool for a hydrometeorological forecast in the lower La Plata Basin","authors":"Melanie Meis, María Paula Llano, Daniela Rodriguez","doi":"10.1080/15715124.2022.2079657","DOIUrl":"https://doi.org/10.1080/15715124.2022.2079657","url":null,"abstract":"ABSTRACT Extreme discharge events in the La Plata Basin need to be prevented. Simple approaches to the forecast problem such as SARIMA models usually predict average values correctly but fail to anticipate extreme events. As an approach to this problem, we used copula methods to model the distribution of the NIÑO 3.4 index and river streamflow pair. We used this to build a six-months forecast for streamflow 95% percentile using observed index values. We added this forecast as an exogenous variable in a SARIMAX model to predict discharge. Given that NIÑO events are usually correlated with extreme discharge events, we expected this model to improve the SARIMA model in predicting extreme events. When comparing both models, we effectively found that SARIMAX model is better than a SARIMA model both for 6- and 12-month discharge forecasts in periods when an El Niño event occurs, while it retains the same performance level when evaluated on all the span of the time series. This model emerges as a lightweight and easily implementable option for decision makers to anticipate extreme events and reduce the negative impacts that they generate.","PeriodicalId":506383,"journal":{"name":"International Journal of River Basin Management","volume":"6 1","pages":"685 - 696"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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