Abstract
Before the implementation of any small scale hydropower scheme, it is essential to determine the availability of sufficient and reliable amount of water to make the scheme economically viable. The sites for small hydels are generally located in the inaccessible tracts of hilly regions. This hinders the proper evaluation of the site. The investments in the small hydels are also comparatively very low as compared to a big hydel power plant; as such not much of fund can be allocated to the initial site suitability decisions. Once a best site in a stream having suitable head has been identified then proper and detailed survey of the site could be undertaken for the construction of the plant. The streams on which small hydel plants are planned are mostly ungauged, which again poses a problem in identifying the amount of flow at certain location. In this work an attempt has been made to create a model for identification of flow at any location of a watershed. The two components of flow that is the base flow and runoff has been taken into consideration for calculating the flow. The base flow has been identified by direct measurement and run off has been delineated using the distributed curve number method. Finally a regression has been done to come to a generalized equation for determination of total flow at any point of a watershed in the Kalimpong subdivision.
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Baltas, E.A., Dervos, A.N. and Mimikou, M.A. (2007) Determination of the SCS initial abstraction ratio in an experimental watershed in Greece. Hydrology and Earth System Sciences, v.11, pp.1825–1829.
Bhatia, K.K.S. (2003) Hydrometeorological data collection and analysis. Proc. 3rd Internat. Course on Development of Small Hydro., pp.258–268.
Bingham, R.H. (1986) Regionalisation of low flow characterics of Tennesse streams, U.S.G.S. Water Resources Investigations, 85–4191.
Bullock, A. (1988) Dambos and discharge in central Jimbabwe, published Ph.D. thesis, University of Southampton.
Bullock, A., Andrews, A. and Mngodo, R. (1997) Regional surface water resources and drought assessment. In: Southern African FRIEND, Technical Documents in Hydrology No 15, UNESCO, Paris.
Bullock, A., Chirwa, A. B., Matondo, J. T. and Mazvimavi, D. (1990) Analysis of flow regimes in Malawi, Tazania and Jimbabwe: a feasibility study for Africa FRIEND overseas development report, Institute of hydrology, Wallingford, U.K.
Burn, D. H. and Boorman, D. B. (1993) Estimation of hydrological parameters at ungauged catchments, Jour. Hydrol., v.143, pp.429–454.
Gan, K.C., McMahon, T.A. and O’Neill, I.C. (1990) Errors in estimated streamflow parameters and storage for ungauged catchments, Water Resources Bull., v.26(3), pp.443–450.
Garren, D.C. (1992) Improved techniques in regression-based streamflow volume forecasting. Jour. Water Resources Planning and Management, v.118, pp.61–69
Grove, M., Harbor, J. and Engel, B. (1998) Composited vs. distributed curve numbers; effects on estimates of storm runoff depths. Jour. Amer. Water Resource Assoc., v.34(5), pp.1015–1023.
Gustard, A., Roald, A., Demuth, S., Lumadjeng, H. S. and Gross, R. (1989) Flow Regimes from Experimental and Network Data (FRIEND), I, hydrological studies, Institute of hydrology, Wallingford, U.K.
Hall, M.J. and Minns, A.W. (1999) The classification of hydrologically homogenous regions. Hydrological Sci. Jour., v.44(8), pp.693–704.
Handbook of Hydrology (1972) Ministry of Agriculture, Soil Conservation Department, Govt. of India, New Delhi
Kroll, C., Luz, J., Allen, B. and Vogel, R.M. (2004) Developing a watershed characteristics database to improve low streamflow prediction. Jour. Hydrologic Engg., v.9(2), pp.116–125.
Lacey, G. C. and Grayson, R. B. (1998) Relating baseflow characteristics to catchment properties in south eastern Australia. Jour. Hydrol., v.204, pp.231–250.
Mhilu, C.F. (2007) Development of regional equations for estimation of low flow regimes of small catchments on Pemba Island, Zanzibar. Jour. Environ. Hydrol., v.15, Paper 7.
Muzik, I. (1996) Flood modeling with GIS distributed unit hydrographs. Hydrological Processes, v.0, pp.1401–1409
Nathan, R.J. and McMahon, T.A. (1990a) Identification of homogenous regions for purposes of regionalization. Jour. Hydrol., v.10, pp.282–290.
NERC (1975) Flood studies reports, National Environmental Research Council, U. K.
O’Malley L. S. S. (2001) Bengal District Gazetteers, Darjeeling, Government of West Bengal.
Ponce, V.M. and Hawkins, R.H. (1996) Runoff curve number: has it reached maturity? Jour. Hydrol. Engg., v.1(1), pp.11–19
Ramachandra, T.V., Subramanian, D.K. and Joshi, N.V. (1999) Hydroelectric resource assessment in Uttara Kannada district, Karnataka state, India. Jour. Cleaner Production, v.7, pp.195–211.
Rifai, S. H., Brock, S. M. Ensor, K. B. and Bedient, P. B. (2000) Determination of low-flow characteristics for texas streams. Jour. Water Resources Planning and Management, v.126(5), no.21362
Riggs, H.C. (1990) Estimating flow characteristics at ungauged sites. Regionalisation in Hydrology, Proceedings of the Ljubljan symposium, April, IAHS publication no. 191
Sefton, C.E.M. and Howarth, S.M. (1998) Relationship between dynamic response characteristics and physical descriptors of catchments in England and Wales. Jour. Hydrol., v.211, pp.1–16
Smakhtin, V.U. (2001) Low-flow hydrology: a review. Jour. Hydrol., v.240(3–4), pp.147–186.
Stube, M.M. and Johnston, D.M. (1990) Runoff volume estimation using GIS techniques, Water Resources Bull., v.26(4), pp.611–620.
Tasker, J. D. (1982) Comparing methods of hydrologic regionalisation. Water Resources Bull., v.18(6), pp.965–970.
Vogel, R.M. and Neil, M.F. (1994) Flow duration curves: new interpretation and confidence intervals. Jour. Water Resources Planning and Management, v.120(4), pp.485–504.
White, D. (1988) Grid based approach of runoff curve numbers, Jour. Water Resources Planning and Management, v.114(6), pp.601–611.
WMO: World Meteorological Organisation (1974) International glossary of Hydrology, Geneva, Switzerland.
Yokoo, Y., Kazama, S., Sawamoto and Nishimura, H. (2001) Regionalisation of lumped water balance model parameters based on multiple regression. Jour. Hydrol., v.246, pp.209–222.
Yu, P.S., Yang, T.C. and wang, Y.C. (2002) Uncertainty analysis of regional flow duration curves. Jour. Water Resources Planning and Management, v.128(6), pp.424–430
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Paul, P.K., Das, S. Development of a Model to Identify the Flow at any Location of an Ungauged Stream for Selection of Sites for Small Hydel in the Kalimpong Subdivision of West Bengal. J Geol Soc India 91, 188–194 (2018). https://doi.org/10.1007/s12594-018-0833-x
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DOI: https://doi.org/10.1007/s12594-018-0833-x