Sensitivity of Streamflow Simulation to Changes in Climatic Inputs

Ng, H.Y.F.; Marsalek, Jiri

doi:10.2166/nh.1992.0018

Cited by 38 publications

(17 citation statements)

References 18 publications

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“…The HYDROLOG model (Porter and McMahon, 1971) was applied to two basins in South Australia (Nathan et al, 1988). The Hydrologic Simulation Program -FORTRAN (HSPF) model (U.S.E.P.A., 1984) has been applied to a basin in Newfoundland, Canada (Ng and Marsalek, 1992). The ARNO model (Todini, 1996) first tested on the Arno basin has since been used as part of a real-time flood forecasting system, as a tool for investigating land use changes and as an approach to the evaluation of land-surface-atmosphere interactions at general circulation model (GCM) scale.…”

Section: Smt Smcmentioning

confidence: 99%

Review on Regional Water Resources Assessment Models under Stationary and Changing Climate

Singh

2004

Water Resour Manage

223

120

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Abstract.A comprehensive assessment of the water resources available in a region or a river basin is essential for finding sustainable solutions for water-related problems concerning both the quantity and quality of the water resources. Research on the development and application of water balance models at different spatial and temporal scales has been carried out since later part of the 19th century. As a result, a great deal of experience on various models and methods has been gained. This paper reviews both traditional long-term water balance methods and the new generation distributed models for assessing available water resources under stationary and changing climatic conditions at different spatial and temporal scales. The applicability and limitations of the methods are addressed. Finally, current advances and challenges in regional-and large-scale assessment of water resources are presented.

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Section: Smt Smcmentioning

confidence: 99%

Review on Regional Water Resources Assessment Models under Stationary and Changing Climate

Singh

2004

Water Resour Manage

223

120

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“…The second category of hydrological models uses deterministic or conceptual hydrological models that contain physically based mathematical descriptions of hydrological phenomena. The input variables to the hydrological models can be either hypothetical climate scenarios (Cooley, 1990;Nash and Gleick, 1991;Panagoulia, 1991;Ng and Marsalek, 1992) or the output of GCMs (Lettenmaier and Gan, 1990;Kite, 1993;Epstein and Ramirez, 1994). Conceptual hydrological models are considered to be suitable tools for assessing the impacts of climatic change and for assessing the regional hydrological consequences resulting from changes in temperature and precipitation and other climatic variables.…”

Section: Use Of Hydrological Models Under Changed Climatic Scenariosmentioning

confidence: 99%

“…In the present study similar scenarios are used. As in most other reported studies, both temperature and precipitation data were uniformly varied by the projected amount of changes over the simulation period (Nemec and Schaake, 1982;Ng and Marsalek, 1992;Rango and Martinec, 1994;Singh and Kumar, 1997a). The changes in temperature were applied as absolute amounts to the daily data series of the meteorological stations, whereas changes in rainfall were considered as percentage difference.…”

Section: Adopted Climatic Scenarios For the Study Basinmentioning

confidence: 99%

Hydrological sensitivity of a large Himalayan basin to climate change

Singh

Bengtsson

2004

Hydrological Processes

211

111

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Abstract:The present study sets out to investigate the sensitivity of water availability to climate change for a large western Himalayan river (the Satluj River basin with an area of 22 275 km 2 and elevation range of 500 to 7000 m), which receives contributions from rain, snow and glacier melt runoff. About 65% of the basin area is covered with snow during winter, which reduces to about 11% after the ablation period. After having calibrated a conceptual hydrological model to provide accurate simulations of observed stream flow, the hydrological response of the basin was simulated using different climatic scenarios over a period of 9 years. Adopted plausible climate scenarios included three temperature scenarios T C 1, T C 2, T C 3°C and four rainfall scenarios (P 10, P 5, P C 5 and P C 10%). The effect of climate change was studied on snowmelt and rainfall contribution runoff, and total stream flow. Under warmer climate, a typical feature of the study basin was found to be reduction in melt from the lower part of the basin owing to a reduction in snow covered area and shortening of the summer melting season, and, in contrast, an increase in the melt from the glacierized part owing to larger melt and an extended ablation period. Thus, on the basin scale, reduction in melt from the lower part was counteracted by the increase from melt from upper part of the basin, resulting in a decrease in the magnitude of change in annual melt runoff. The impact of climate change was found to be more prominent on seasonal rather than annual water availability. Reduction of water availability during the summer period, which contributes about 60% to the annual flow, may have severe implications on the water resources of the region, because demand of water for irrigation, hydropower and other usage is at its peak at this time.

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“…Hydrologic Simulation Program -FORTRAN (HSPF) model (U.S. EPA, 1984) has been applied to a basin in Newfoundland, Canada (Ng and Marsalek, 1992).…”

Section: Concedtual Lumded-parameter Modelsmentioning

confidence: 99%