DOI: 10.5194/hess-19-63-2015
Scopus记录号: 2-s2.0-84920742712
论文题名: On inclusion of water resource management in Earth system models Part 2: Representation of water supply and allocation and opportunities for improved modeling
作者: Nazemi A ; , Wheater H ; S
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 1 起始页码: 63
结束页码: 90
语种: 英语
Scopus关键词: Climate models
; Digital storage
; Earth (planet)
; Groundwater
; Information management
; Natural resources management
; Remote sensing
; Reservoirs (water)
; Resource allocation
; Uncertainty analysis
; Underground reservoirs
; Water management
; Water supply
; Anthropogenic process
; Atmospheric feedbacks
; Coupling techniques
; Integrated modeling system
; Large-scale effects
; Sources of uncertainty
; Uncertainty assessment
; Waterresource management
; Water resources
; data assimilation
; demand analysis
; hydrological modeling
; numerical model
; remote sensing
; reservoir
; water management
; water resource
; water supply
英文摘要: Human water use has significantly increased during the recent past. Water withdrawals from surface and groundwater sources have altered terrestrial discharge and storage, with large variability in time and space. These withdrawals are driven by sectoral demands for water, but are commonly subject to supply constraints, which determine water allocation. Water supply and allocation, therefore, should be considered together with water demand and appropriately included in Earth system models to address various large-scale effects with or without considering possible climate interactions. In a companion paper, we review the modeling of demand in large-scale models. Here, we review the algorithms developed to represent the elements of water supply and allocation in land surface and global hydrologic models. We note that some potentially important online implications, such as the effects of large reservoirs on land-atmospheric feedbacks, have not yet been fully investigated. Regarding offline implications, we find that there are important elements, such as groundwater availability and withdrawals, and the representation of large reservoirs, which should be improved. We identify major sources of uncertainty in current simulations due to limitations in data support, water allocation algorithms, host large-scale models as well as propagation of various biases across the integrated modeling system. Considering these findings with those highlighted in our companion paper, we note that advancements in computation and coupling techniques as well as improvements in natural and anthropogenic process representation and parameterization in host large-scale models, in conjunction with remote sensing and data assimilation can facilitate inclusion of water resource management at larger scales. Nonetheless, various modeling options should be carefully considered, diagnosed and intercompared. We propose a modular framework to develop integrated models based on multiple hypotheses for data support, water resource management algorithms and host models in a unified uncertainty assessment framework. A key to this development is the availability of regional-scale data for model development, diagnosis and validation. We argue that the time is right for a global initiative, based on regional case studies, to move this agenda forward. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78648
Appears in Collections: 气候变化事实与影响
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作者单位: Global Institute for Water Security, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, Canada
Recommended Citation:
Nazemi A,, Wheater H,S. On inclusion of water resource management in Earth system models Part 2: Representation of water supply and allocation and opportunities for improved modeling[J]. Hydrology and Earth System Sciences,2015-01-01,19(1)