DOI: 10.5194/hess-19-33-2015
Scopus记录号: 2-s2.0-84920722597
论文题名: On inclusion of water resource management in Earth system models -Part 1: Problem definition and representation of water demand
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: 33
结束页码: 61
语种: 英语
Scopus关键词: Climate change
; Earth (planet)
; Human resource management
; Natural resources management
; Resource allocation
; Sea level
; Water management
; Water supply
; Anthropogenic activity
; Atmospheric feedbacks
; Atmospheric simulations
; Hydrological models
; Sources of uncertainty
; Temporal and spatial scale
; Waterresource management
; World climate research programs
; Water resources
; algorithm
; human activity
; nature-society relations
; water demand
; water management
; water resource
英文摘要: Human activities have caused various changes to the Earth system, and hence the interconnections between human activities and the Earth system should be recognized and reflected in models that simulate Earth system processes. One key anthropogenic activity is water resource management, which determines the dynamics of human-water interactions in time and space and controls human livelihoods and economy, including energy and food production. There are immediate needs to include water resource management in Earth system models. First, the extent of human water requirements is increasing rapidly at the global scale and it is crucial to analyze the possible imbalance between water demands and supply under various scenarios of climate change and across various temporal and spatial scales. Second, recent observations show that human-water interactions, manifested through water resource management, can substantially alter the terrestrial water cycle, affect land-atmospheric feedbacks and may further interact with climate and contribute to sea-level change. Due to the importance of water resource management in determining the future of the global water and climate cycles, the World Climate Research Program's Global Energy and Water Exchanges project (WRCP-GEWEX) has recently identified gaps in describing human-water interactions as one of the grand challenges in Earth system modeling (GEWEX, 2012). Here, we divide water resource management into two interdependent elements, related firstly to water demand and secondly to water supply and allocation. In this paper, we survey the current literature on how various components of water demand have been included in large-scale models, in particular land surface and global hydrological models. Issues of water supply and allocation are addressed in a companion paper. The available algorithms to represent the dominant demands are classified based on the demand type, mode of simulation and underlying modeling assumptions. We discuss the pros and cons of available algorithms, address various sources of uncertainty and highlight limitations in current applications. We conclude that current capability of large-scale models to represent human water demands is rather limited, particularly with respect to future projections and coupled land-atmospheric simulations. To fill these gaps, the available models, algorithms and data for representing various water demands should be systematically tested, intercompared and improved. In particular, human water demands should be considered in conjunction with water supply and allocation, particularly in the face of water scarcity and unknown future climate. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78651
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 1: Problem definition and representation of water demand[J]. Hydrology and Earth System Sciences,2015-01-01,19(1)