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Intercomparison of global river discharge simulations focusing on dam operation—multiple models analysis in two case-study river basins, Missouri–Mississippi and Green–Colorado
Masaki,Yoshimitsu1,2; Hanasaki,Naota1; Biemans,Hester3; Schmied,Hannes Müller4,5; Tang,Qiuhong6; Wada,Yoshihide7,8,9,10; Gosling,Simon N11; Takahashi,Kiyoshi1; Hijioka,Yasuaki1
2017-04-24
Source PublicationEnvironmental Research Letters
ISSN1748-9326
Volume12Issue:5
AbstractAbstract We performed an intercomparison of river discharge regulated by dams under four meteorological forcings among five global hydrological models for a historical period by simulation. This is the first global multimodel intercomparison study on dam-regulated river flow. Although the simulations were conducted globally, the Missouri–Mississippi and Green–Colorado Rivers were chosen as case-study sites in this study. The hydrological models incorporate generic schemes of dam operation, not specific to a certain dam. We examined river discharge on a longitudinal section of river channels to investigate the effects of dams on simulated discharge, especially at the seasonal time scale. We found that the magnitude of dam regulation differed considerably among the hydrological models. The difference was attributable not only to dam operation schemes but also to the magnitude of simulated river discharge flowing into dams. That is, although a similar algorithm of dam operation schemes was incorporated in different hydrological models, the magnitude of dam regulation substantially differed among the models. Intermodel discrepancies tended to decrease toward the lower reaches of these river basins, which means model dependence is less significant toward lower reaches. These case-study results imply that, intermodel comparisons of river discharge should be made at different locations along the river's course to critically examine the performance of hydrological models because the performance can vary with the locations.
Keywordriver discharge reservoir flow regimes flood control
DOI10.1088/1748-9326/aa57a8
Language英语
WOS IDIOP:1748-9326-12-5-aa57a8
PublisherIOP Publishing
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67796
Collection中国科学院地理科学与资源研究所
Affiliation1.National Institute for Environmental Studies, 16–2 Onogawa, Tsukuba, Ibaraki, 305–8506, Japan
2.Graduate School of Science and Technology, Hirosaki University, Bunkyocho-3, Hirosaki, Aomori, 036–8561, Japan
3.Wageningen University and Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands
4.Institute of Physical Geography, Goethe-University Frankfurt, Frankfurt, Germany
5.Senckenberg Biodiversity and Climate Research Centre (BiK-F), Frankfurt, Germany
6.Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
7.NASA Goddard Institute for Space Studies, New York, United States of America
8.Center for Climate Systems Research, Columbia University, New York, United States of America
9.Department of Physical Geography, Utrecht University, Utrecht, The Netherlands
10.International Institute for Applied Systems Analysis, Laxenburg, Austria
11.School of Geography, University of Nottingham, Nottingham NG7 2RD, United Kingdom
Recommended Citation
GB/T 7714
Masaki,Yoshimitsu,Hanasaki,Naota,Biemans,Hester,等. Intercomparison of global river discharge simulations focusing on dam operation—multiple models analysis in two case-study river basins, Missouri–Mississippi and Green–Colorado[J]. Environmental Research Letters,2017,12(5).
APA Masaki,Yoshimitsu.,Hanasaki,Naota.,Biemans,Hester.,Schmied,Hannes Müller.,Tang,Qiuhong.,...&Hijioka,Yasuaki.(2017).Intercomparison of global river discharge simulations focusing on dam operation—multiple models analysis in two case-study river basins, Missouri–Mississippi and Green–Colorado.Environmental Research Letters,12(5).
MLA Masaki,Yoshimitsu,et al."Intercomparison of global river discharge simulations focusing on dam operation—multiple models analysis in two case-study river basins, Missouri–Mississippi and Green–Colorado".Environmental Research Letters 12.5(2017).
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