A simple water balance modelling approach for determining water availability in an irrigation tank cascade system

Jayatilaka, C. J.; Sakthivadivel, R.; Shinogi, Y.; Makin, Ian W.; Witharana, P.

doi:10.1016/s0022-1694(02)00360-8

Cited by 43 publications

(35 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As shown in Fig. 7, there are six flooding events in the validation periods at Panshi and Dongfeng Stations, which occurred in 1996, 1998, 2003, 2005 while there are eleven flooding events in the validation periods at Yangzishao and Wudaogou Stations, occurring in 1991, 1993, 1994, 1995, 1996, 1998, 2001, 2003, 2005 Yangzishao ( [1990][1991][1992][1993][1994][1995][1996][1997][1998][1999][2000][2001][2002][2003][2004][2005][2006] and (d) Wudaogou (1990Wudaogou ( -2006.…”

Section: Validation Resultsmentioning

confidence: 99%

“…Different approaches have been developed to account for the interferences in hydrological simulations. For example, water storage simulation models have been developed for small-sized river catchments (Jayatilaka et al, 2003;Saxton and Willey, 2004), which suggest that those models could be used as a useful tool for optimizing the usage of limited water resources in similar regions with a small amount of water storage. However, the impact of water storage on hydrological processes has not been well addressed in general, largely due to the fact that the popular watershed simulation models lack sufficient data and relationships to simulate the effects of water storages.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

Zhang

Peng

Chu

et al. 2012

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Hydrological simulation in regions with a large number of water storages is difficult due to inaccurate water storage data. To address this issue, this paper presents an improved version of SWAT2005 (Soil and Water Assessment Tool, version 2005) using Landsat, a satellite-based dataset, an empirical storage classification method and some empirical relationships to estimate water storage and release from the various sizes of flow detention and regulation facilities. The SWAT2005 is enhanced by three features: (1) a realistic representation of the relationships between the surface area and volume of each type of water storages, ranging from small-sized flow detention ponds to medium-and large-sized reservoirs with the various flow regulation functions; (2) water balance and transport through a network combining both sequential and parallel streams and storage links; and (3) calibrations for both physical and human interference parameters. Through a real-world watershed case study, it is found that the improved SWAT2005 more accurately models small-and medium-sized storages than the original model in reproducing streamflows in the watershed. The improved SWAT2005 can be an effective tool to assess the impact of water storage on hydrologic processes, which has not been well addressed in the current modelling exercises.

show abstract

Section: Validation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

Zhang

Peng

Chu

et al. 2012

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…The tanks are arranged in a cascade-like fashion along shallow valley courses. They are connected by canals and spillways and build a complex system of floodwater harvesting, water storage and water distribution [2].…”

Section: Introductionmentioning

confidence: 99%

Tank Cascade Systems as a Sustainable Measure of Watershed Management in South Asia

Bebermeier

Meister

Withanachchi

et al. 2017

Water

View full text Add to dashboard Cite

Abstract:In the dry zone of Sri Lanka, human-made reservoirs have served for the collection, storage and distribution of rainfall and runoff and provide irrigation water for the cultivation of paddy for 2000 years. This paper introduces the layout and function of four traditional village tank cascade systems in the hinterland of Anuradhapura, located in the North Central Province in Sri Lanka. In contrast to large-scale tanks, these systems are managed and maintained by local villagers. Sedimentological data from two tanks provide information about processes leading to the formation of these deposits and their post-sedimentary, partly human-induced alterations. The presented data support the hypothesis, that the decentral managed tanks were not affected by severe erosion after the abandonment of the ancient capital Anuradhapura in the 11th century CE, a period that was characterized by socio-economic instability and increased climatic fluctuations. Presented results underline the significance of small-scale tank cascades systems to buffer the effects of climatic fluctuations and point to their potential as a cornerstone in coping with future climate change in the dry zone of Sri Lanka.

show abstract

“…Irrigation ponds are a type of water-supply structure that is small in size, and are also referred to as on-farm irrigation tanks or on-farm reservoirs. These structures are widely distributed in Southern China, Southern India, and Sri Lanka [4][5][6][7]. The ponds play an important role in decreasing peak flow in main irrigation channels, reallocating water in irrigation districts, enhancing water-efficient irrigation, and supplying water for crop production [2,4,[8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Failure Analysis of a New Irrigation Water Allocation Mode Based on Copula Approaches in the Zhanghe Irrigation District, China

Shao

et al. 2016

Water

View full text Add to dashboard Cite

Abstract:The risk analysis of an irrigation water allocation strategy based on physical mechanisms is critically important in practice. Conventional risk analysis only considers the role of the channel system and ignores the factors related to on-farm ponds. This paper proposes a channel-pond joint water supply mode (CPJM) based on copula approaches. Two copulas, the Plackett copula and No.16 copula, are chosen and two types of analyses are carried out with the proposed mode: (1) a risk assessment of CPJM with joint probability and conditional probability; and (2) determination of the water supply strategy given the pond water supply frequency. With a case study of the second channel in the Zhanghe Irrigation District (ZID), Southern China, nine combinations of channel water supply frequency (CWSF) and pond water supply frequency (PWSF) are studied. The results reveal that the failure probabilities of the joint distribution and the conditional distribution of the CPJM are 0.02%-16.54% and 0.45%-33.08%, respectively, with corresponding return period of 42-5000 and 10-222 years. Nevertheless, a previous study has shown that the real probability is 33.3%, which means that the return period is equals to three years. Therefore, the objective failure evaluation of the irrigation water-use strategy is useful for water saving in this channel system. Moreover, the irrigation water allocation strategy can be determined and the failure charts relating the CWSF and PWSF can be obtained for a predetermined PWSF. Thus, the channel-pond joint water supply mode provides a more reasonable estimate of the irrigation water allocation strategy reliability.

show abstract

A simple water balance modelling approach for determining water availability in an irrigation tank cascade system

Cited by 43 publications

References 8 publications

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

Tank Cascade Systems as a Sustainable Measure of Watershed Management in South Asia

Failure Analysis of a New Irrigation Water Allocation Mode Based on Copula Approaches in the Zhanghe Irrigation District, China

Contact Info

Product

Resources

About