Pub Date : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.535
Jaehwan Jeong
{"title":"Sentinel-1 SAR image-based waterbody detection technique for estimating the water storage in agricultural reservoirs","authors":"Jaehwan Jeong","doi":"10.3741/JKWRA.2021.54.7.535","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.535","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128678863","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.545
Jaewon Kwak
{"title":"A study for the target water level of the dam for flood control","authors":"Jaewon Kwak","doi":"10.3741/JKWRA.2021.54.7.545","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.545","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124508244","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.509
Subin Kang
{"title":"An interaction between flood and economy on socio-hydrology perspective-Case study for Yangjae River-","authors":"Subin Kang","doi":"10.3741/JKWRA.2021.54.7.509","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.509","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131942250","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.523
J. Shin
{"title":"Quantitative analysis of drought propagation probabilities combining Bayesian networks and copula function","authors":"J. Shin","doi":"10.3741/JKWRA.2021.54.7.523","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.523","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131597643","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.453
SunghoㆍOh SungryulㆍLee DaeeopㆍLe Xuan HienㆍLee Giha Jung
As the frequency of localized heavy rainfall has increased during recent years, the importance of high-resolution radar data has also increased. This study aims to correct the bias of Dual Polarization radar that still has a spatial and temporal bias. In many studies, various statistical techniques have been attempted to correct the bias of radar rainfall. In this study, the bias correction of the S-band Dual Polarization radar used in flood forecasting of ME was implemented by a Convolutional Autoencoder (CAE) algorithm, which is a type of Convolutional Neural Network (CNN). The CAE model was trained based on radar data sets that have a 10-min temporal resolution for the July 2017 flood event in Cheongju. The results showed that the newly developed CAE model provided improved simulation results in time and space by reducing the bias of raw radar rainfall. Therefore, the CAE model, which learns the spatial relationship between each adjacent grid, can be used for real-time updates of grid-based climate data generated by radar and satellites.
{"title":"Application of convolutional autoencoder for spatiotemporal bias-correction of radar precipitation","authors":"SunghoㆍOh SungryulㆍLee DaeeopㆍLe Xuan HienㆍLee Giha Jung","doi":"10.3741/JKWRA.2021.54.7.453","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.453","url":null,"abstract":"As the frequency of localized heavy rainfall has increased during recent years, the importance of high-resolution radar data has also increased. This study aims to correct the bias of Dual Polarization radar that still has a spatial and temporal bias. In many studies, various statistical techniques have been attempted to correct the bias of radar rainfall. In this study, the bias correction of the S-band Dual Polarization radar used in flood forecasting of ME was implemented by a Convolutional Autoencoder (CAE) algorithm, which is a type of Convolutional Neural Network (CNN). The CAE model was trained based on radar data sets that have a 10-min temporal resolution for the July 2017 flood event in Cheongju. The results showed that the newly developed CAE model provided improved simulation results in time and space by reducing the bias of raw radar rainfall. Therefore, the CAE model, which learns the spatial relationship between each adjacent grid, can be used for real-time updates of grid-based climate data generated by radar and satellites.","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126409116","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.475
Yongjun Ryu
{"title":"Application of modified hybrid vision correction algorithm for an optimal design of water distribution system","authors":"Yongjun Ryu","doi":"10.3741/JKWRA.2021.54.7.475","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.475","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114683413","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 : 2021-07-01DOI: 10.3741/JKWRA.2021.54.7.463
Taeuk Kang
{"title":"Analysis on inundation characteristics by compound external forces in coastal areas","authors":"Taeuk Kang","doi":"10.3741/JKWRA.2021.54.7.463","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.7.463","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115082842","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 : 2021-06-01DOI: 10.3741/JKWRA.2021.54.6.433
J. Kang
{"title":"Propagation of tidal wave and resulted tidal asymmetry upward tidal rivers","authors":"J. Kang","doi":"10.3741/JKWRA.2021.54.6.433","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.6.433","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127729521","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 : 2021-06-01DOI: 10.3741/JKWRA.2021.54.6.443
Youngkyu Jin
{"title":"Analysis and comparison of the water supply adjustment guide and a hedging rule of reservoir operation derived from mixed-integer programming for water supply operation of a multi-purpose reservoir","authors":"Youngkyu Jin","doi":"10.3741/JKWRA.2021.54.6.443","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.6.443","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134210247","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 : 2021-06-01DOI: 10.3741/JKWRA.2021.54.6.395
Jung-Ryel Choi
{"title":"A study on the estimation and evaluation of ungauged reservoir inflow for local government's agricultural drought forecasting and warning","authors":"Jung-Ryel Choi","doi":"10.3741/JKWRA.2021.54.6.395","DOIUrl":"https://doi.org/10.3741/JKWRA.2021.54.6.395","url":null,"abstract":"","PeriodicalId":224359,"journal":{"name":"Journal of Korea Water Resources Association","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841490","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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