Modelling Small-scale Storage Interventions at the Basin Scale

Horan, Robyn; Wable, Pawan S.; Srinivasan, Veena; Baron, Helen; Keller, Virginie; Garg, Kaushal K.; Rickards, Nathan; Simpson, Michael; Houghton-Carr, Helen; Rees, Gwyn

doi:10.1002/essoar.10503750.1

Cited by 2 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whereby the groundwater store is recharged from the soil moisture, lakes and reservoirs, leaking infrastructure and small-scale storage interventions. A further recent update to GWAVA has been to incorporate a representation of check dams, farm bunds and urban tanks into the model structure [46].…”

Section: Global Water Availability Assessment (Gwava) Modelmentioning

confidence: 99%

“…Surface water flows across the Cauvery catchment (to Musiri) on a daily timestep were estimated utilizing GWAVA 5.0 [46,63]. Similarly, to VIC, GWAVA was set up for the extent of the Cauvery catchment upstream of Musiri (Figure 1) at 0.125 • grids for the years 1986-2005.…”

Section: Gwavamentioning

confidence: 99%

“…A grid cell resolution of 0.125 • was chosen based on data availability for the region. The model setup is described in detail in Horan et al (2020) [46] and Keller et al (in prep). The model was calibrated, to daily observed streamflow, and validated, to daily observed streamflow and seasonal groundwater levels at 14 gauging stations across the catchment from 1980-2005 depending on the period of uninterrupted reliable observed streamflow available from the gauging station.…”

Section: Gwavamentioning

confidence: 99%

See 2 more Smart Citations

A Comparative Assessment of Hydrological Models in the Upper Cauvery Catchment

Horan

Gowri

Wable

et al. 2021

Water

Self Cite

View full text Add to dashboard Cite

This paper presents a comparison of the predictive capability of three hydrological models, and a mean ensemble of these models, in a heavily influenced catchment in Peninsular India: GWAVA (Global Water AVailability Assessment) model, SWAT (Soil Water Assessment Tool) and VIC (Variable Infiltration Capacity) model. The performance of the three models and their ensemble were investigated in five sub-catchments in the upstream reaches of the Cauvery river catchment. Model performances for monthly streamflow simulations from 1983–2005 were analysed using Nash-Sutcliffe efficiency, Kling-Gupta efficiency and percent bias. The predictive capability for each model was compared, and the ability to accurately represent key catchment hydrological processes is discussed. This highlighted the importance of an accurate spatial representation of precipitation for input into hydrological models, and that comprehensive reservoir functionality is paramount to obtaining good results in this region. The performance of the mean ensemble was analysed to determine whether the application of a multi-model ensemble approach can be useful in overcoming the uncertainties associated with individual models. It was demonstrated that the ensemble mean has a better predictive ability in catchments with reservoirs than the individual models, with Nash-Sutcliffe values between 0.49 and 0.92. Therefore, utilising multiple models could be a suitable methodology to offset uncertainty in input data and poor reservoir operation functionality within individual models.

show abstract

Section: Global Water Availability Assessment (Gwava) Modelmentioning

confidence: 99%

Section: Gwavamentioning

confidence: 99%

Section: Gwavamentioning

confidence: 99%

See 1 more Smart Citation

A Comparative Assessment of Hydrological Models in the Upper Cauvery Catchment

Horan

Gowri

Wable

et al. 2021

Water

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Global Water Availability Assessment (Gwava) Modelmentioning

confidence: 99%

“…A list of these parameters can be found in Appendix A, Table 4. , interventions-tanks, check dams and farm bunds [52]. Five parameters were selected in the calibration.…”

Section: Swatmentioning

confidence: 99%

A Comparative Assessment of the GWAVA, SWAT and VIC Models in the Hydrological Modelling of the Upper Cauvery Catchment, India

Horan¹,

Gowri²,

Wable³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

This paper presents a comparison of the predictive capability of three hydrological models in a heavily influenced catchment in Peninsula India. In catchments where there is a high dependence on both streamflow and groundwater to meet demands, it is of importance to capture the catchment processes correctly. This study highlights the performance evaluation of a multi-model ensemble consisting of GWAVA (Global Water AVailability Assessment) model, SWAT (Soil Water Assessment Tool) and VIC (Variable Infiltration Capacity) model for comparative purposes and the key catchment hydrological processes. The three models were compared in several sub-catchments in the upstream reaches of the Cauvery river catchment. Model performances for monthly streamflow simulations from 1983 – 2005 were analysed for five catchments in the Upper Cauvery. The analysis was undertaken using Nash- Sutcliffe Efficiency, Kling- Gupta Efficiency and percent bias. Additionally, a mean ensemble is presented. The application of a multi-model ensemble approach can be useful in overcoming the uncertainties associated with individual models. The ensemble mean has a better predictive ability in catchments with reservoirs than the individual models. Utilising multiple models could be a suitable methodology to offset uncertainty in input data and poor reservoir operation functionality within individual models. This study has highlighted the importance of an accurate spatial representation of precipitation for input into hydrological models and comprehensive reservoir functionality is paramount to obtaining good results in this region.

show abstract

Modelling Small-scale Storage Interventions at the Basin Scale

Cited by 2 publications

References 28 publications

A Comparative Assessment of Hydrological Models in the Upper Cauvery Catchment

A Comparative Assessment of Hydrological Models in the Upper Cauvery Catchment

A Comparative Assessment of the GWAVA, SWAT and VIC Models in the Hydrological Modelling of the Upper Cauvery Catchment, India

Contact Info

Product

Resources

About