The critical role of the routing scheme in simulating peak river discharge in global hydrological models

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dc.contributor.authorZhao, Fangko
dc.contributor.authorVeldkamp, Ted I. E.ko
dc.contributor.authorFrieler, Katjako
dc.contributor.authorSchewe, Jacobko
dc.contributor.authorOstberg, Sebastianko
dc.contributor.authorWillner, Svenko
dc.contributor.authorSchauberger, Bernhardko
dc.contributor.authorGosling, Simon N.ko
dc.contributor.authorSchmied, Hannes Muellerko
dc.contributor.authorPortmann, Felix T.ko
dc.contributor.authorLeng, Guoyongko
dc.contributor.authorHuang, Maoyiko
dc.contributor.authorLiu, Xingcaiko
dc.contributor.authorTang, Qiuhongko
dc.contributor.authorHanasaki, Naotako
dc.contributor.authorBiemans, Hesterko
dc.contributor.authorGerten, Dieterko
dc.contributor.authorSatoh, Yusukeko
dc.contributor.authorPokhrel, Yaduko
dc.contributor.authorStacke, Tobiasko
dc.contributor.authorCiais, Philippeko
dc.contributor.authorChang, Jinfengko
dc.contributor.authorDucharne, Agnesko
dc.contributor.authorGuimberteau, Matthieuko
dc.contributor.authorWada, Yoshihideko
dc.contributor.authorKim, Hyungjunko
dc.contributor.authorYamazaki, Daiko
dc.date.accessioned2021-07-13T07:10:50Z-
dc.date.available2021-07-13T07:10:50Z-
dc.date.created2021-07-13-
dc.date.created2021-07-13-
dc.date.issued2017-07-
dc.identifier.citationENVIRONMENTAL RESEARCH LETTERS, v.12, no.7-
dc.identifier.issn1748-9326-
dc.identifier.urihttp://hdl.handle.net/10203/286616-
dc.description.abstractGlobal hydrological models (GHMs) have been applied to assess global flood hazards, but their capacity to capture the timing and amplitude of peak river discharge-which is crucial in flood simulations-has traditionally not been the focus of examination. Here we evaluate to what degree the choice of river routing scheme affects simulations of peak discharge and may help to provide better agreement with observations. To this end we use runoff and discharge simulations of nine GHMs forced by observational climate data (1971-2010) within the ISIMIP2a project. The runoff simulations were used as input for the global river routing model CaMa-Flood. The simulated daily discharge was compared to the discharge generated by each GHM using its native river routing scheme. For each GHM both versions of simulated discharge were compared to monthly and daily discharge observations from 1701 GRDC stations as a benchmark. CaMaFlood routing shows a general reduction of peak river discharge and a delay of about two to three weeks in its occurrence, likely induced by the buffering capacity of floodplain reservoirs. For a majority of river basins, discharge produced by CaMa-Flood resulted in a better agreement with observations. In particular, maximum daily discharge was adjusted, with a multi-model averaged reduction in bias over about 2/3 of the analysed basin area. The increase in agreement was obtained in both managed and near-natural basins. Overall, this study demonstrates the importance of routing scheme choice in peak discharge simulation, where CaMa-Flood routing accounts for floodplain storage and backwater effects that are not represented in most GHMs. Our study provides important hints that an explicit parameterisation of these processes may be essential in future impact studies.-
dc.languageEnglish-
dc.publisherIOP PUBLISHING LTD-
dc.titleThe critical role of the routing scheme in simulating peak river discharge in global hydrological models-
dc.typeArticle-
dc.identifier.wosid000404943800003-
dc.identifier.scopusid2-s2.0-85025628704-
dc.type.rimsART-
dc.citation.volume12-
dc.citation.issue7-
dc.citation.publicationnameENVIRONMENTAL RESEARCH LETTERS-
dc.identifier.doi10.1088/1748-9326/aa7250-
dc.contributor.localauthorKim, Hyungjun-
dc.contributor.nonIdAuthorZhao, Fang-
dc.contributor.nonIdAuthorVeldkamp, Ted I. E.-
dc.contributor.nonIdAuthorFrieler, Katja-
dc.contributor.nonIdAuthorSchewe, Jacob-
dc.contributor.nonIdAuthorOstberg, Sebastian-
dc.contributor.nonIdAuthorWillner, Sven-
dc.contributor.nonIdAuthorSchauberger, Bernhard-
dc.contributor.nonIdAuthorGosling, Simon N.-
dc.contributor.nonIdAuthorSchmied, Hannes Mueller-
dc.contributor.nonIdAuthorPortmann, Felix T.-
dc.contributor.nonIdAuthorLeng, Guoyong-
dc.contributor.nonIdAuthorHuang, Maoyi-
dc.contributor.nonIdAuthorLiu, Xingcai-
dc.contributor.nonIdAuthorTang, Qiuhong-
dc.contributor.nonIdAuthorHanasaki, Naota-
dc.contributor.nonIdAuthorBiemans, Hester-
dc.contributor.nonIdAuthorGerten, Dieter-
dc.contributor.nonIdAuthorSatoh, Yusuke-
dc.contributor.nonIdAuthorPokhrel, Yadu-
dc.contributor.nonIdAuthorStacke, Tobias-
dc.contributor.nonIdAuthorCiais, Philippe-
dc.contributor.nonIdAuthorChang, Jinfeng-
dc.contributor.nonIdAuthorDucharne, Agnes-
dc.contributor.nonIdAuthorGuimberteau, Matthieu-
dc.contributor.nonIdAuthorWada, Yoshihide-
dc.contributor.nonIdAuthorYamazaki, Dai-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorISIMIP-
dc.subject.keywordAuthorglobal hydrological models-
dc.subject.keywordAuthorpeak river discharge-
dc.subject.keywordAuthorriver routing-
dc.subject.keywordAuthorflood-
dc.subject.keywordAuthordaily runoff-
dc.subject.keywordAuthorGRDC-
dc.subject.keywordPlusFLOOD HAZARD-
dc.subject.keywordPlusCONTINENTAL-SCALE-
dc.subject.keywordPlusINTEGRATED MODEL-
dc.subject.keywordPlusRUNOFF-
dc.subject.keywordPlusAMAZON-
dc.subject.keywordPlusPRECIPITATION-
dc.subject.keywordPlusBASIN-
dc.subject.keywordPlusUNCERTAINTIES-
dc.subject.keywordPlusVELOCITY-
dc.subject.keywordPlusSYSTEMS-
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