期刊
WATER RESOURCES RESEARCH
卷 57, 期 12, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2020WR029500
关键词
groundwater; modeling; global
资金
- NSF CAREER program [1945195]
- Directorate For Geosciences
- Division Of Earth Sciences [1945195] Funding Source: National Science Foundation
Groundwater, as the largest unfrozen freshwater resource on Earth, has been historically excluded from global models. Efforts have been made to develop global scale groundwater modeling, but there are still key technological and data challenges that need to be addressed to achieve a consistent global groundwater framework.
Groundwater is by far the largest unfrozen freshwater resource on the planet. It plays a critical role as the bottom of the hydrologic cycle, redistributing water in the subsurface and supporting plants and surface water bodies. However, groundwater has historically been excluded or greatly simplified in global models. In recent years, there has been an international push to develop global scale groundwater modeling and analysis. This progress has provided some critical first steps. Still, much additional work will be needed to achieve a consistent global groundwater framework that interacts seamlessly with observational datasets and other earth system and global circulation models. Here we outline a vision for a global groundwater platform for groundwater monitoring and prediction and identify the key technological and data challenges that are currently limiting progress. Any global platform of this type must be interdisciplinary and cannot be achieved by the groundwater modeling community in isolation. Therefore, we also provide a high-level overview of the groundwater system, approaches to groundwater modeling and the current state of global groundwater representations, such that readers of all backgrounds can engage in this challenge.
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