Estimation of Runoff for Ozat Catchment using RS and GIS Based SCS-CN Method

Chavda, Dipesh; Makwana, Jaydip J.; Parmar, H. V.; Kunapara, Arvind; Prajapati, G. V.

doi:10.12944/cwe.11.1.26

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Köylü and Geymen [21] applied SCS-CN method to calculate the runoff in the catchment basin of the Yamula Dam (Kızılırmak River of Turkey) and found SCS-CN method is sensitive to LULC change and change of CN (change of the runoff values). Chavda et al [9] implemented SCS-CN method for estimation of surface runoff and water availability for two sites in Junagadh, Gujarat and suggested surface water harvesting structures. Topno et al [63], also computed annual runoff depth for ungauged catchment area (Vindhyachal region) and revealed that the SCS-CN method can be used to estimate surface runoff depth when adequate hydrological information is not available.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Surface Runoff from Semi-arid Ungauged Agricultural Watershed Using SCS-CN Method and Earth Observation Data Sets

Rawat

Singh

2017

Water Conserv Sci Eng

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In the present study, Soil Conservation ServiceCurve Number (SCS-CN) method, Earth Observation (EO) data sets and Geographic Information System (GIS) have been used in order to estimate the surface runoff from Jhagrabaria an agricultural watershed of Allahabad district, Uttar Pradesh (India). LANDSAT-7ETM+, NOAA data and hydrologic soil groups have been used to prepare land use/land cover, rainfall and soil map. The traditional SCS-CN method for calculating the composite CN is very tedious and time demanding process of the hydrologic modeling. Therefore, GIS is now being used in combination with the SCS-CN method. The outcome of work showed 79.35 (CN II ) of normal condition, of dry condition 61.76 (CN I ) and of wet condition 89.84 (CN III ), respectively. This investigation outline that ungauged watershed exhibits an annual average of 14 years runoff volume as 3.58 × 10 6 m 3 from an average annual rainfall of 14 years 110.77 cm and the average annual surface runoff of 14 years was 23.83 cm and annual average runoff coefficient of 14 years was 0.22. The correlation analysis suggests that the strong correlation as R 2 (0.91) was observed between satellite drive rainfall and runoff from SCS-CN method. The developed rainfall-runoff model for the region will be useful to understand the watershed and its runoff flow characteristics.

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Section: Introductionmentioning

confidence: 99%

Estimation of Surface Runoff from Semi-arid Ungauged Agricultural Watershed Using SCS-CN Method and Earth Observation Data Sets

Rawat

Singh

2017

Water Conserv Sci Eng

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“…A number of models are mentioned in the literature which are modelling rainfall-runoff process in a basin using SCS-CN method in a gauged basin 17 . Using the climate change projections 18 , one can use such models for predicting the behaviours of river flows.…”

Section: Contribution Of Ungauged Tributaries Falling Directly Into T...mentioning

confidence: 99%

Physiographic Analysis of Tehri Dam Catchment and Development of GIUH Based Nash Model for Ungauged Rivers

Agrawal

Lohani

Goel

2019

Curr. World Environ

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Advanced information about incoming flows is required for operation of a variety of hydraulic structures including multipurpose storage hydropower projects. Inflow forecasts are used for optimum power generation during non -monsoon season and operation of gates and spillways during the flood season. In order to develop an inflow forecasting system for a reservoir, it has been observed that many a times number of ungauged rivers directly falling into the reservoirs are not accounted for. Such is the case for the Tehri Reservoir, where 16 small rivers/tributaries which are directly contributing to Tehri reservoir are ungauged. In the present study an attempt has been made to carry out physiographic objective Tehri catchment and to develop Geomorphological Instantaneous Unit Hydrograph (GIUH) for ungauged rivers/tributaries directly falling into the reservoir. GIUH developed for the ungauged rivers can be used to simulate the runoff from all the 16 ungauged rivers. Combining these GIUH models with a hydrological model of the other gauged rivers of the Tehri Catchment in the form of a network model provides a complete rainfall-runoff model. Thus, this study provides a useful input for the development of inflow forecasting model for the Tehri Dam as the network model can be used as flood forecasting model.

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Estimating potential direct runoff for ungauged urban watersheds based on RST and GIS

2018

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Estimation of Runoff for Ozat Catchment using RS and GIS Based SCS-CN Method

Cited by 5 publications

References 4 publications

Estimation of Surface Runoff from Semi-arid Ungauged Agricultural Watershed Using SCS-CN Method and Earth Observation Data Sets

Estimation of Surface Runoff from Semi-arid Ungauged Agricultural Watershed Using SCS-CN Method and Earth Observation Data Sets

Physiographic Analysis of Tehri Dam Catchment and Development of GIUH Based Nash Model for Ungauged Rivers

Estimating potential direct runoff for ungauged urban watersheds based on RST and GIS

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