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

Zhao, F., Veldkamp, T. I. E., Frieler, K., Schewe, J., Ostberg, S., Willner, S., Schauberger, B., Gosling, S. N., Schmied, H. M., Portmann, F. T., Leng, G., Huang, M., Liu, X., Tang, Q., Hanasaki, N., Biemans, H., Gerten, D., Satoh, Y., Pokhrel, Y., Stacke, T., Ciais, P., Chang, J., Ducharne, A., Guimberteau, M., Wada, Y., Kim, H., & Yamazaki, D. (2017). The critical role of the routing scheme in simulating peak river discharge in global hydrological models. Environmental Research Letters, 12:. doi:10.1088/1748-9326/aa7250.

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資料種別: 学術論文

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Zhao_2017_Environ._Res._Lett._12_075003.pdf (出版社版), 4MB
ファイルのパーマリンク:
https://hdl.handle.net/11858/00-001M-0000-002D-A171-3
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Zhao_2017_Environ._Res._Lett._12_075003.pdf
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ERL_12_7_075003_suppdata.pdf (付録資料), 10MB
ファイルのパーマリンク:
https://hdl.handle.net/11858/00-001M-0000-002D-A172-1
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ERL_12_7_075003_suppdata.pdf
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Supplementary Data
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作成者

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 作成者:
Zhao, Fang1, 著者
Veldkamp, Ted I. E.1, 著者
Frieler, Katja1, 著者
Schewe, Jacob1, 著者
Ostberg, Sebastian1, 著者
Willner, Sven1, 著者
Schauberger, Bernhard1, 著者
Gosling, Simon N.1, 著者
Schmied, Hannes Mueller1, 著者
Portmann, Felix T.1, 著者
Leng, Guoyong1, 著者
Huang, Maoyi1, 著者
Liu, Xingcai1, 著者
Tang, Qiuhong1, 著者
Hanasaki, Naota1, 著者
Biemans, Hester1, 著者
Gerten, Dieter1, 著者
Satoh, Yusuke1, 著者
Pokhrel, Yadu1, 著者
Stacke, Tobias2, 著者                 
Ciais, Philippe1, 著者Chang, Jinfeng1, 著者Ducharne, Agnes1, 著者Guimberteau, Matthieu1, 著者Wada, Yoshihide1, 著者Kim, Hyungjun1, 著者Yamazaki, Dai1, 著者 全て表示
所属:
1external, ou_persistent22              
2Terrestrial Hydrology, The Land in the Earth System, MPI for Meteorology, Max Planck Society, ou_913560              

内容説明

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キーワード: CLIMATE-CHANGE; FLOOD HAZARD; CONTINENTAL-SCALE; INTEGRATED MODEL; DIRECTION MAP; AMAZON BASIN; RUNOFF; PRECIPITATION; WETLANDS; SYSTEMSISIMIP; global hydrological models; peak river discharge; river routing; flood; daily runoff; GRDC;
 要旨: Global 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.

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言語: eng - English
 日付: 2017-06-282017-06-28
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: 査読あり
 識別子(DOI, ISBNなど): ISI: 000404943800003
DOI: 10.1088/1748-9326/aa7250
 学位: -

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Project information

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Project name : Helix BMBF - grant no. 01LS1201A1 and 01LS1201A2
Grant ID : 603864-2
Funding program : Funding Programme 7 (FP7)
Funding organization : European Commission (EC)

出版物 1

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出版物名: Environmental Research Letters
  省略形 : Environ. Res. Lett.
種別: 学術雑誌
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出版社, 出版地: Bristol : Institute of Physics
ページ: - 巻号: 12 通巻号: 075003 開始・終了ページ: - 識別子(ISBN, ISSN, DOIなど): ISSN: 1748-9326
CoNE: https://pure.mpg.de/cone/journals/resource/1748-9326