Assessment of surface water potential and groundwater recharge in ungauged watersheds: a case study in Tamil Nadu, India
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Many of the states in India have been facing water scarcity for more than 2 decades due to increased demand, because of the increase in population and higher living standards. Consequently, many states have almost fully utilized the available surface water resources and are exploiting groundwater to augment water supplies. Investigations were carried out in the upper Thurinjalar watershed of Ponnaiyar basin in Tamil Nadu to determine the availability of surface water and to investigate the potential for enhancing groundwater recharge to support the water demand in the watershed. Increasing the water availability would also enable the community to convert the 46% of the land area in the watershed that is currently underutilised into productive uses. The surface water potential for the upper Thurinjalar watershed was assessed by applying the USDA–NRCS model with daily time steps. This modelling exercise indicated that the annual runoff from the 323 km2 area of the watershed is 61 million m3. Groundwater recharge in the watershed was assessed by carrying out daily water balance method and indicated that about 43 million m3 of water from recharge is available on an annual basis or about 14% of annual rainfall. A simple regression model was developed to compute groundwater recharge from rainfall based on water balance computations and this was statistically verified. The modelling indicated that there is sufficient water available in the watershed to support current land uses and to increase the productivity of underutilised land in the area. The study also demonstrates that simple regression models can be used as an effective tool to compute groundwater recharge for ungauged basins with proper calibration.
KeywordsGroundwater NRCS model Recharge Water balance model Regression model
The authors wish to acknowledge Dr. S. Mohan, Professor, Department of Civil Engineering, IIT Madras, Dr. R. Jaganathan, Head, Department of Geography, Madras University and Mr. K. S. Kathiravan, Deputy Director, PWD—Groundwater, Chennai and T. German Amali Jacintha, Scientist, Sathyabama University for the support rendered for the successful completion of the work.
This research did not receive any funding or financial support or specific grant from funding agencies or government or non-government or non-profit organizations.
- Abdel Rahman MAE, Natarajan A, Hegde R (2016), Assessment of land suitability and capability by integrating remote sensing and GIS for agriculture in Chamarajanagar district, Karnataka, India. Egypt J Remote Sens Space Sci 19(1):125–141Google Scholar
- AIS & LUS (1990) Watershed atlas of India, Department of Agriculture and Cooperation. All India soil and land use survey, lARI campus, New DelhiGoogle Scholar
- Central Ground Water Board (2014) Dynamic ground water Resources of India, Central Ground Water Board, Ministry of Water Resources. River Development & Ganga Rejuvenation Government of India, FaridabadGoogle Scholar
- CGWB (Central Ground Water Board) (2011) Water balance studies in upper Yamuna basin—terminal report—project findings and recommendations. Central Ground Water Board, ChandigarhGoogle Scholar
- Chow VT, Maidment DR, Mays LW (1988) Applied hydrology. McGraw-Hill, New YorkGoogle Scholar
- Cosgrove WJ, Rijsberman F (2000) World water vision: making water everybody’s business, World Water Council, World Water Vision, and EarthscanGoogle Scholar
- Dadhwal (1999) Remote sensing application for agriculture: retrospective and perspective. In: Abstract volume. National symposium on remote sensing applications for natural resources: retrospectives and perspective by Indian Society of Remote Sensing, Bangalore, p 3Google Scholar
- De Silva RP (1999) Estimating groundwater recharge in the dry zone of Srilanka using weekly, 10 daily or monthly evapotranspiration. J Environ Hydrol 7(4):1–11Google Scholar
- Doorenbos J, Pruitt WO (1977) Guidelines for predicting crop water requirements, irrigation and drainage paper no. 24. Food and Agriculture Organisation, RomeGoogle Scholar
- Gupta SK, Deshpande RD (2004) Water for India in 2050: first-order assessment of available options. Curr Sci 86(9):1216–1224Google Scholar
- Meher J, Jha R (2011b) Time series analysis of rainfall data over Mahanadi river basin. Emerg Sci 3(6):22–32Google Scholar
- Ministry of Water Resources (2012) Per capita water availability. Press Information Bureau, Government of India, New DelhiGoogle Scholar
- Mishra SK, Jain MK, Suresh Babu P, Venugopal K, Kaliappan S (2008) Comparison of AMC-dependent CN-conversion formulae, water resources management, vol 22, pp 1409–1420Google Scholar
- Natarajan A, Reddy PSA, Sehal J, Velayutham M (1997) Soil resources of Tamil Nadu for land-use planning, National Bureau of soil survey and land use planning and Department of Agriculture. Chennai NBSS PUBL 46:14–20Google Scholar
- Santhanam K, Abraham M, Kannan R, Venugopal K (2015) Strategy for increasing per capita availability of water for Gingee town, Tamil Nadu, report submitted to Water Technology Initiative. Department of Science and Technology, Government of India, New DelhiGoogle Scholar
- Thakuriah G, Saikia R (2014) Estimation of surface runoff using NRCS curve number procedure in Buriganga watershed, Assam, India—a geospatial approach. Int Res J Earth Sci 2(5):1–7Google Scholar
- USDA-SCS (1986) United States Department of Agriculture-Soil Conservation Service, technical release 55, Urban Hydrology for Small Watersheds, USAGoogle Scholar
- Vasudevan S, Ramkumar T, Singhal RK, Rajanikanth A, Ramesh G (2015) Lakes and wetland. Partridge, ChennaiGoogle Scholar