Modeling and simulation of runoff from an irrigation tank watershed to evaluate the utilizable water

Kanagaraj, Raji Paul; Abraham, Marykutty; Mohana, P.; Panneerselvam, Vijayalakshmi; Sekar, Selvam

doi:10.1007/s12517-020-06267-w

Cited by 3 publications

(3 citation statements)

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“…In terms of storage and groundwater recharge, the tank at the tail end of the cascade system benefitted the most. Similar results were found in studies undertaken in South Asia and India [9,11,14,21].…”

Section: Discussionsupporting

confidence: 89%

“…These tank systems have an impact on groundwater recharging as well. Similar findings were found in previous studies on tank systems [9,11,14]. In KTCS, tanks with a surface area of less than 0.8 km 2 did not accurately simulate flow, whereas tanks with a surface area of equal to or greater than 0.8 km 2 performed well in the simulation of hydrological processes.…”

Section: Discussionsupporting

confidence: 88%

“…Li and Gowing (2005) [13] developed a catchment-tank-command water balance model to estimate the dynamics of tank storage and suggested that the model be used to evaluate existing tank water management techniques. Kanagaraj et al (2021) [14] used the USDA-NRCS (Natural Resources Conservation Service) curve number approach to model irrigation tank surface runoff for a small ungauged watershed. The simulated flows were within 10% to 20% of the measured flows.…”

Section: Introductionmentioning

confidence: 99%

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Flow Simulation and Storage Assessment in an Ungauged Irrigation Tank Cascade System Using the SWAT Model

et al. 2021

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In the semi-arid regions of South Asia, tank systems are the major source of irrigation. In India, the Telangana state government has initiated the Mission Kakatiya program to rejuvenate irrigation tank systems. Understanding the hydrological processes that supply water to these systems is critical to the success of these types of programs in India. The current study attempted to comprehend the hydrological processes and flow routing in the Salivagu watershed tank cascade system in Telangana. There are a lot of ungauged tank cascade systems in this region. Soil Water Assessment Tool (SWAT), a physically-based model, was used to simulate flow patterns in the Salivagu watershed with and without tank systems. The geospatially extracted area and volume were used for this study provided by WBIS-Bhuvan-NRSC. Additionally, the Katakshapur Tank Cascade System (KTCS) was chosen to analyze the water availability in each tank using the water balance approach. The Salivagu watershed flow simulation without tanks overestimated streamflow. The volume difference in flow between with and without tank was 606 Mm3, 615.9 Mm3, and 1011 Mm3 in 2017, 2018, and 2019, respectively. The SWAT simulated volumes of the Ramchandrapur and Dharmaraopalle tanks in KTCS were merely satisfied because the tank size was less than 0.7 km2 and the storage capacity was up to 1 Mm3. Due to tank sizes more than 0.8 km2 and capacities greater than 2 Mm3, the Mallampalli and Katakshapur tank simulation findings were in good agreement with WBIS-Bhuvan-NRSC. This research advances our understanding of the hydrological processes in ungauged cascading tank systems in tropical semi-arid regions.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 88%