Understanding each other's models: an introduction and a standard representation of 16 global water models to support intercomparison, improvement, and communication

doi:10.5194/gmd-14-3843-2021

	Understanding each other's models: an introduction and a standard representation of 16 global water models to support intercomparison, improvement, and communication
	Telteu, Camelia-Eliza 2; Schmied, Hannes Mueller 2,3; Thiery, Wim 4; Leng, Guoyong 5; Burek, Peter 6; Liu, Xingcai 5; Boulange, Julien Eric Stanislas 7; Andersen, Lauren Seaby 8; Grillakis, Manolis 9; Gosling, Simon Newland 10
刊名	GEOSCIENTIFIC MODEL DEVELOPMENT
	2021-06-24
卷号	14 期号:6 页码:3843-3878
ISSN号	1991-959X
DOI	10.5194/gmd-14-3843-2021
通讯作者	Telteu, Camelia-Eliza(camelia.telteu@gmail.com)
英文摘要	Global water models (GWMs) simulate the terrestrial water cycle on the global scale and are used to assess the impacts of climate change on freshwater systems. GWMs are developed within different modelling frameworks and consider different underlying hydrological processes, leading to varied model structures. Furthermore, the equations used to describe various processes take different forms and are generally accessible only from within the individual model codes. These factors have hindered a holistic and detailed understanding of how different models operate, yet such an understanding is crucial for explaining the results of model evaluation studies, understanding inter-model differences in their simulations, and identifying areas for future model development. This study provides a comprehensive overview of how 16 state-of-the-art GWMs are designed. We analyse water storage compartments, water flows, and human water use sectors included in models that provide simulations for the Inter-Sectoral Impact Model Intercomparison Project phase 2b (ISIMIP2b). We develop a standard writing style for the model equations to enhance model intercomparison, improvement, and communication. In this study, WaterGAP2 used the highest number of water storage compartments, 11, and CWatM used 10 compartments. Six models used six compartments, while four models (DBH, JULESW1 , Mac-PDM.20, and VIC) used the lowest number, three compartments. WaterGAP2 simulates five human water use sectors, while four models (CLM4.5, CLM5.0, LPJmL, and MPI-HM) simulate only water for the irrigation sector. We conclude that, even though hydrological processes are often based on similar equations for various processes, in the end these equations have been adjusted or models have used different values for specific parameters or specific variables. The similarities and differences found among the models analysed in this study are expected to enable us to reduce the uncertainty in multi-model ensembles, improve existing hydrological processes, and integrate new processes.
资助项目	German Federal Ministry of Education and Research[01LS1711F]
WOS关键词	ENVIRONMENT SIMULATOR JULES ; LAND-SURFACE PROCESSES ; HYDROLOGICAL MODEL ; TERRESTRIAL VEGETATION ; GROUNDWATER RECHARGE ; RICHARDS EQUATION ; CLIMATE ; UNCERTAINTY ; RESOURCES ; IMPACT
WOS研究方向	Geology
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000667951100004
资助机构	German Federal Ministry of Education and Research
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163809]
专题	中国科学院地理科学与资源研究所
通讯作者	Telteu, Camelia-Eliza
作者单位	1.Lndian Inst Technol Gandhinagar, Palaj 382355, Gandhinagar, India 2.Goethe Univ Frankfurt, Inst Phys Geog, D-60438 Frankfurt, Germany 3.Senckenberg Leibniz Biodivers & Climate Res Ctr S, D-60325 Frankfurt, Germany 4.Vrije Univ Brussel, Dept Hydrol & Hydraul Engn, B-1050 Brussels, Belgium 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 6.Int Inst Appl Syst Anal, Water Secur Res Grp, Biodivers & Nat Resources Program, A-2361 Laxenburg, Austria 7.Natl Inst Environm Studies, Ctr Climate Change Adaptat, Climate Change Impacts Assessment Res Sect, Tsukuba, Ibaraki 3058506, Japan 8.Potsdam Inst Climate Impact Res, Earth Syst Anal, D-14473 Potsdam, Germany 9.Fdn Res & Technol Hellas, Inst Mediterranean Studies, Rethimnon 74100, Greece 10.Univ Nottingham, Sch Geog, Nottingham NG7 2RD, England
推荐引用方式 GB/T 7714	Telteu, Camelia-Eliza,Schmied, Hannes Mueller,Thiery, Wim,et al. Understanding each other's models: an introduction and a standard representation of 16 global water models to support intercomparison, improvement, and communication[J]. GEOSCIENTIFIC MODEL DEVELOPMENT,2021,14(6):3843-3878.
APA	Telteu, Camelia-Eliza.,Schmied, Hannes Mueller.,Thiery, Wim.,Leng, Guoyong.,Burek, Peter.,...&Herz, Florian.(2021).Understanding each other's models: an introduction and a standard representation of 16 global water models to support intercomparison, improvement, and communication.GEOSCIENTIFIC MODEL DEVELOPMENT,14(6),3843-3878.
MLA	Telteu, Camelia-Eliza,et al."Understanding each other's models: an introduction and a standard representation of 16 global water models to support intercomparison, improvement, and communication".GEOSCIENTIFIC MODEL DEVELOPMENT 14.6(2021):3843-3878.