Groundwater Banking in the Rio Grande Basin

Sandoval-Solís, Samuel; McKinney, Daene C.; Teasley, Rebecca; Patiño-Gómez, Carlos

doi:10.1061/(asce)wr.1943-5452.0000091

Cited by 18 publications

(8 citation statements)

References 12 publications

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“…With this enhanced version, dynamically integrated rainfall/runoff routines translate information on climate and catchment conditions into hydrologic fluxes that drive the existing water system simulation routines (Yates et al, 2005). It has been applied to various regions in the world, such as North and South America (e.g., Null et al, 2010;Sandoval-Solis et al, 2011), West Africa (e.g., de Condappa et al, 2009 and the Middle East (e.g., Al-Omari et al, 2009). It has also been coupled with MODFLOW to enable a dynamic planning of surface and groundwater (Droubi et al, 2008).…”

Section: Methodology and Datamentioning

confidence: 99%

Opportunities for harnessing the increased contribution of glacier and snowmelt flows in the Ganges basin

Sharma

Condappa²

2013

Water Policy

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The topography of the Ganges basin is highly variable, with the steep mountainous region of the Himalaya upstream and the large fertile plains in eastern India and Bangladesh downstream. The contribution from the glaciers to streamflows is supposed to be significant but there is uncertainty surrounding the impact of climate change on glaciers. An application of the Water Evaluation and Planning model was set up which contained an experimental glaciers module. The model also examined the possible impacts of an increase in temperature. The contribution from glaciated areas is significant (60-75%) in the Upper Ganges but reduces downstream, falling to about 19% at Farakka. Climate change-induced rise in temperature logically increases the quantity of snow and ice that melts in glaciated areas. However, this impact decreases from upstream (2?8% to 2?26% at Tehri dam) to downstream (2?1% to 2?4% at Farakka). Such increases in streamflows may create flood events more frequently, or of higher magnitude, in the upper reaches. Potential strategies to exploit this additional water may include the construction of new dams/reservoir storage and the development of groundwater in the basin through managed aquifer recharge. The riparian states of India, Nepal and Bangladesh could harness this opportunity to alleviate physical water scarcity and improve productivity

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Section: Methodology and Datamentioning

confidence: 99%

Opportunities for harnessing the increased contribution of glacier and snowmelt flows in the Ganges basin

Sharma

Condappa²

2013

Water Policy

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“…Connected floodplains attenuate the magnitude of floods and reduce the severity of their damage (Sandoval‐Solis and McKinney, ). Rivers interact with aquifers, storing water in the ground that can be used during drought periods (Sandoval‐Solis et al ., ). Rivers reaching the coast attenuate saline intrusion in aquifers while providing nutrients, sediments and adequate water quality for estuarine fisheries (Kam et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Reconciling Hydropower and Environmental Water Uses in the Leishui River Basin

Sandoval-Solís

Dahlke

et al. 2013

River Research & Apps

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Today's water systems require integrated water resource management to improve the water supply for conflicting water uses. This research explores alternative policies to improve the water supply for two conflicting uses, hydropower and environmental, using the Leishui River basin and Dongjiang reservoir as a case study. First, the natural flow regime prior to reservoir construction (pre-1992) was estimated by performing a statistical analysis of 41 years of daily streamflow data (March 1952-February 1993. This natural flow regime was used as a template for proposing environmental flow (e-flow) requirements. The post-reservoir flow regime (post-1992) (March 1993-February 2011) was analysed to estimate the streamflow alteration. Results show that the natural flow regime has been completely transformed; post-1992 winter normal flows are greater, and summer flows are smaller than pre-1992 conditions. Also, the occurrence of natural floods has been prevented. Second, a planning model was built of the current operation of the Dongjiang reservoir and used for comparison of four alternative water management policies that considered e-flow releases from the Dongjiang reservoir. The scenarios that considered combinations of the current operational policy and e-flow releases performed better in terms of hydropower generation than the current operation. Different volumes of e-flow requirements were tested, and an annual e-flow volume of 75% of the pre-1992 hydrograph was determined to generate the most hydropower while providing for environmental water needs. Trade-offs are essential to balance these two water management objectives, and compromises have to be made for both water uses to obtain benefits.

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“…However, the long-term viability of groundwater banking systems requires that the physical aspects of the system (i.e., water storage) and accounting system be congruent. For a groundwater bank to be successful, the bank's depositors must have assurance that water deposited in the bank will be available to them for withdrawal at a later time when needed (Sandoval-Solis et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Groundwater banking: opportunities and management challenges

Maliva

2013

Water Policy

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Groundwater banking is the use of aquifers to store water to balance seasonal or longer-term variations in supply and demand. The large storage capacity provided by aquifers can be a valuable tool for conjunctive use of surface water and groundwater as well as other elements of integrated water resources management. Successful groundwater banking requires favorable hydrogeological conditions to efficiently recharge, store, and abstract large volumes of water. Additionally, groundwater banking is also highly dependent upon water management and operational policies to ensure that stored water is not abstracted by other users and that the water accounting system of the bank remains in balance. Accumulated credits to withdraw water should not exceed the capacity of an aquifer to safely produce the water at the design rate-of-return for the bank. System participants need to have confidence that credits issued for recharge can be safely recovered when needed. Groundwater banking systems can cause significant local adverse impacts to other aquifer users and sensitive environments during recovery periods. Groundwater modeling is required to develop a sustainable management system that accounts for temporal and spatial variations in the impacts of both recharge and abstraction activities.

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Groundwater Banking in the Rio Grande Basin

Cited by 18 publications

References 12 publications

Opportunities for harnessing the increased contribution of glacier and snowmelt flows in the Ganges basin

Opportunities for harnessing the increased contribution of glacier and snowmelt flows in the Ganges basin

Reconciling Hydropower and Environmental Water Uses in the Leishui River Basin

Groundwater banking: opportunities and management challenges

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