Application of hydrological model for assessment of water security using multi-model ensemble of CORDEX-South Asia experiments in a semi-arid river basin of India

Dubey, Swatantra Kumar; Sharma, Devesh; Babel, Mukand S.; Mundetia, Nitika

doi:10.1016/j.ecoleng.2019.105641

Cited by 22 publications

(5 citation statements)

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“…Previous studies have frequently used the SWAT model for agricultural management, climate and land use/land cover (LULC) change management, and water resource management [19][20][21][22]. The SWAT model has been utilized for climate change impact assessments on Indian river basins by employing past, present, and future climate scenarios [23][24][25]. The model has also been used for several comparative studies related to the performance of national water services (NWS), NEXRAD stage III, TRMM 3B42 V6, rain gauge, NWS multi-sensor precipitation estimator, TRMM, multi-satellite precipitation analysis, TRMM 3B42 V6, and climate prediction center morphing method data for measuring the streamflow and sensitive parameters of various watershed systems [12,26,27].…”

Section: Introductionmentioning

confidence: 99%

Application of Satellite-Based and Observed Precipitation Datasets for Hydrological Simulation in the Upper Mahi River Basin of Rajasthan, India

2021

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Hydrological modeling is an important tool used for basin management and studying the impacts of extreme events in a river basin. In streamflow simulations, precipitation plays an essential role in hydrological models. Meteorological satellite precipitation measurement techniques provide highly accurate rainfall information with high spatial and temporal resolution. In this analysis, the tropical rainfall monitoring mission (TRMM) 3B42 V7 precipitation products were employed for simulating streamflow by using the soil water assessment tool (SWAT) model. With India Metrological Department and TRMM data, the SWAT model can be used to predict streamflow discharge and identify sensitive parameters for the Mahi basin. The SWAT model was calibrated for 2 years and then independently validated for 2 years by comparing observed and simulated streamflow. A strong correlation was observed between the calibration and validation results for the Paderdibadi station, with a Nash–Sutcliffe efficiency of >0.34 and coefficient of determination (R2) of >0.77. The SWAT model was used to adequately simulate the streamflow for the Upper Mahi basin with a satisfactory R2 value. The analysis indicated that TRMM 3B42 V7 is useful in SWAT applications for predicting streamflow and performance and for sensitivity analysis. In addition, satellite data may require correction before its utilization in hydrological modeling. This study is helpful for stakeholders in monitoring and managing agricultural, climatic, and environmental changes.

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Section: Introductionmentioning

confidence: 99%

Application of Satellite-Based and Observed Precipitation Datasets for Hydrological Simulation in the Upper Mahi River Basin of Rajasthan, India

2021

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“…Sen's Slope is widely used in studies on the temporal behavior of hydrometeorological series (Silva et al 2015;Dubey et al 2020) and is estimated by applying the statistic Q ij , which can be calculated according to Eq. 1.…”

Section: Sen's Slope Methodsmentioning

confidence: 99%

Analysis of Flow Behavior as Influenced by Reservoir with Flow Regularization

Generoso

Silva

Amorim

et al. 2022

Water Resour Manage

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Understanding the behavior of reservoirs with ow regularization formed by hydroelectric power plants is essential for assessing water availability and, consequently, for planning the use of water resources, especially in downstream positions. The operationalization of reservoirs can be in uenced both by climatic characteristics and by the consequences resulting from human actions in the basin. Therefore, the objective of this study was to evaluate the existing relationships between the in ows and out ows of a reservoir, as well as with the conventional stream ow gauge stations downstream of the dam. In addition, the aim was also to evaluate trends in the behavior of minimum, average and maximum ows, in the post-operation period, considering the characteristics of rainfall and irrigation in the region. The results indicated that reservoir operationalization is strongly related to the behavior of in ows, especially when considering analyses in quarterly periods, also affecting the ow in the stream ow gauge stations downstream. Moreover, a reduction was also veri ed in all variables analyzed related to in ows and out ows, as well as in the stations downstream of the dam, except for the maximum ow in the station farthest from the reservoir, which showed a stationary behavior. The reductions observed in the ows may be related to the increase of almost three times in the area irrigated by center pivot in the basin; however, the same cannot be said in relation to the annual rainfall regime of the region, since it showed a stationary behavior for most stations evaluated.

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“…In this study, GCM downscaled on IITM-RegCM4 RCM has been used (Giorgi et al, 2012). RegCM4 performs admirably in the Indian subcontinent (Dubey et al, 2020;Mall et al, 2018;Singh and Saravanan, 2020). It can simulate the current climate throughout the study region (Gao and Giorgi, 2017).…”

Section: Cordex Datamentioning

confidence: 99%

Climate Change Impact Assessment on Stream flow of Ganjal River, India

Singh¹,

Singh²

2022

EEC

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Hydrological models often predict a changing situation, necessitating further research into models to make water resource management more realistic. This study uses soil and water assessment tool (SWAT) model to analyse the possible effect of climate change on the future streamflow of the Ganjal river watershed. It is located in middle sub-basin of the Narmada River, India. The model was calibrated for 1988-2007 and validated for 2008-2015 using monthly discharge data at the watershed outlet. The calibrated model was then run for the future (2025-52) using climate model output. The study of climate change is completed using the Representative Concentration Pathway scenarios, RCP 4.5 and 8.5 of three different General Circulation Models (GCM). The downscaled output of these GCM from the Coordinated Regional Downscaling Experiment (CORDEX) has been used in this study after bias correction. The findings demonstrate the significance of climate changeâs effect on streamflow.

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Application of hydrological model for assessment of water security using multi-model ensemble of CORDEX-South Asia experiments in a semi-arid river basin of India

Cited by 22 publications

References 50 publications

Application of Satellite-Based and Observed Precipitation Datasets for Hydrological Simulation in the Upper Mahi River Basin of Rajasthan, India

Application of Satellite-Based and Observed Precipitation Datasets for Hydrological Simulation in the Upper Mahi River Basin of Rajasthan, India

Analysis of Flow Behavior as Influenced by Reservoir with Flow Regularization

Climate Change Impact Assessment on Stream flow of Ganjal River, India

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