Your search found 9 records
1 Culver, T. B.; Shoemaker, C. A. 1997. Dynamic optimal ground-water reclamation with treatment capital costs. Journal of Water Resources Planning and Management, 123(1):23-29.
(Location: IWMI-HQ Call no: PER Record No: H019690)
2 Culver, T. B.; Shoemaker, C. A. 1992. Dynamic optimal control for groundwater remediation with flexible management periods. Water Resources Research, 28(3):629-641.
(Location: IWMI-HQ Call no: PER Record No: H010176)
3 Culver, T. B.; Shoemaker, C. A. 1994. Optimal groundwater reclamation with capital costs. In Fontane, D. G.; Tuvel, H. N. (Eds.), Water policy and management: Solving the problems: Proceedings of the 21st annual conference, ASCE, Denver, Colorado, May 23-26, 1994. New York, NY, USA: ASCE. pp.177-180.
Groundwater management ; Optimization ; Mathematical models ; Simulation models ; Pumping ; Policy ; Costs
(Location: IWMI-HQ Call no: 333.91 G000 FON Record No: H019802)
4 Hilton, A. B. C.; Culver, T. B.. 2000. Constraints handling for genetic algorithms in optimal remediation design. Journal of Water Resources Planning and Management, 126(3):128-137.
(Location: IWMI-HQ Call no: PER Record No: H026101)
5 Hilton, A. B. C.; Culver, T. B.. 2001. Sensitivity of optimal groundwater remediation designs to residual water quality violations. Journal of Water Resources Planning and Management, 127(5):316-323.
(Location: IWMI-HQ Call no: PER Record No: H028733)
6 Culver, T. B.; Naperala, T. R.; Potts, A. L.; Zhang, H. X.; Neeley, K. A.; Yu, S. L. 2002. Case study of impact of total maximum daily load allocations on nitrate leaching. Journal of Water Resources Planning and Management, 128(4):262-270.
Watershed management ; Nitrogen ; Leaching ; Groundwater ; Water quality ; Case studies / USA / Muddy Creek watershed / Dry River watershed
(Location: IWMI-HQ Call no: PER Record No: H030198)
7 Reis, J.; Culver, T. B.; McCartney, Matthew; Lautze, Jonathan; Kibret, S. 2011. Water resources implications of integrating malaria control into the operation of an Ethiopian dam. Water Resources Research, 47(W09530):10p. [doi: https://doi.org/10.1029/2010WR01016]
Water resources ; Waterborne diseases ; Malaria ; Dams ; Reservoirs ; Simulation models ; Water power ; Energy generation ; Electricity generation ; Environmental flows ; Downstream ; Flooding ; Flood control ; Irrigation / Ethiopia / Awash River Basin / Koka Reservoir
(Location: IWMI HQ Call no: e-copy only Record No: H044345)
(0.70 MB)
This paper investigates the water resources implications of using a method of hydrological control to reduce malaria around the Koka reservoir in central Ethiopia. This method is based on recent ndings that malaria is transmitted from the shoreline of the Koka reservoir, and on a similar method that was used to control malaria some 80 yr ago in the United States. To assess the feasibility of implementing hydrological control at Koka, we considered the potential impact of the modi ed management regime on the bene ts derived from current uses of the reservoir water (i.e., hydropower, irrigation, ood control, water supply, and downstream environmental ows). We used the HEC-ResSim model to simulate lowering the reservoir by a rate designed to disrupt larval development, which is expected to reduce the abundance of adult mosquito vectors and therefore reduce malaria transmission during the season in which transmission of the disease peaks. A comparison was made of major reservoir uses with and without the malaria control measure. In the 26-yr simulation, application of the malaria control measure increased total average annual electricity generation from 87.6 GWh x y -1 to 92.2 GWh x y -1 (i.e., a 5.3% increase) but resulted in a small decline in rm power generation (i.e., guaranteed at 99.5% reliability) from 4.16 MW to 4.15 MW (i.e., a 0.2% decrease). Application of the malaria control measure did not impact the ability of the reservoir to meet downstream irrigation demand and reduced the number of days of downstream ooding from 28 to 24 d. These results indicate that targeted use of hydrological control for malaria vector management could be undertaken without sacri cing the key bene ts of reservoir operation.
8 Reis, J.; Culver, T. B.; Lacombe, Guillaume; Senaratna Sellamuttu, Sonali. 2015. Reservoir operation for recession agriculture in Mekong basin, Laos. Journal of Water Resources Planning and Management, 141(7):1-9. [doi: https://doi.org/10.1061/(ASCE)WR.1943-5452.0000485]
Agriculture ; Reservoirs ; Water resources ; Water management ; Water levels ; Water power ; Dams ; Rural areas ; Living standards ; Vegetable growing ; River basins ; Case studies / Lao People s Democratic Republic / Mekong Basin
(Location: IWMI HQ Call no: e-copy only Record No: H046633)
(0.44 MB)
As hydropower dam construction in rapidly growing economies dislodges communities, rural development experts must help the displaced make their livelihoods in new lacustrine environments. One question is whether the dam infrastructure can directly benefit those who remain within the vicinity of the reservoir. Integrated water resource management seeks to concurrently consider hydrological, socioeconomic, and ecological factors, yet water managers lack the information needed to include livelihoods in their analyses. The objective of this paper is to develop tools and plans for coordinating hydropower reservoir operation and management for rural livelihoods. Specifically, this study investigates how dam management may accommodate vegetable farming on the banks of a reservoir. The intervention investigated is to lower water levels during the cultivation period in order to expose shoreline gardens. Based on the recession agriculture rule, evaluated through simulation of a dam in Lao People’s Democratic Republic, the average annual hydropower production was reduced by between 0.4 and 8.1%, depending on the agricultural goal, with the loss to power occurring mainly in the months April to June. By focusing on hydropower reservoir systems, the techniques developed in this study have the potential to be applied to support communities throughout the world that farm on the shorelines of water reservoirs.
9 Reis, J.; Culver, T. B.; Block, P. J.; McCartney, Matthew P. 2016. Evaluating the impact and uncertainty of reservoir operation for malaria control as the climate changes in Ethiopia. Climatic Change, 136(3):601-614. [doi: https://doi.org/10.1007/s10584-016-1639-8]
Malaria ; Reservoir operation ; Climate change ; Precipitation ; Temperature ; Evaporation ; Water levels ; Water resources ; Energy generation ; Irrigation ; Rainfall-runoff relationships ; Environmental flows / Ethiopia
(Location: IWMI HQ Call no: e-copy only Record No: H047534)
(0.79 MB)
Promising environmental mechanisms to control malaria are presently underutilized. Water level fluctuations to interrupt larval development have recently been studied and proposed as a low-impact malaria intervention in Ethiopia. One impediment to implementing such new environmental policies is the uncertain impact of climate change on water resources, which could upend reservoir operation policies. Here we quantified the potential impact of the malaria management under future climate states. Simulated timeseries were constructed by resampling historical precipitation, temperature, and evaporation data (1994–2002), imposing a 2 °C temperature increase and precipitation changes with a range of ±20 %. Runoff was generated for each climate scenario using the model GR4J. The runoff was used as input into a calibrated HEC ResSim model of reservoir operations. The malaria operation management increased the baseline scenario median energy generation by 18.2 GWh y-1 and decreased the energy generation at the 0.5 percentile (during dry conditions) by 7.3 GWh y-1. In scenarios with -20 % precipitation, malaria control increased average annual energy generation by 1.3 GWh y-1 but only decreased the lowest 0.5 percentile of energy by 0.2 GWh y-1; the irrigation demand was not met on 8.5 more days, on average, per year. Applying the malaria control rule to scenarios with +20 % precipitation decreased the likelihood of flooding by an average of 1.0 day per year. While the malaria control would divert some water away from other reservoir operational goals, the intervention requires 3.3–3.7 % of the annual precipitation budget, which is much less than reduction from potential droughts.
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