A comparative review of hydroenvironmental and socio-economic characteristics of the Thamirabarani and Cauvery River Basins

Abstract

Monsoon-dependent rivers, such as the Thamirabarani and Cauvery play critical roles in South India’s water and livelihoods. This review compares the hydroenvironmental and socio-economic characteristics of two important peninsular India river basins—the Thamirabarani and the Cauvery—over 2014-2023. The Thamirabarani River, a short perennial river originating in the Western Ghats, flows through Tamil Nadu. The Cauvery River spans Karnataka, Tamil Nadu, and Puducherry, with complex hydrology. Both basins are influenced by the southwest and northeast monsoons (NEM). The Thamirabarani Basin receives over 55% of its annual rainfall during the NEM, averaging around 1,050 mm/year. The Cauvery Basin shows wide spatial variability, from 600 mm to 2,000 mm/year, depending on elevation and location. Groundwater dynamics show contrasting patterns. The Thamirabarani Basin maintains shallow water tables (2-3 m pre-monsoon), relatively stable due to consistent recharge and lower abstraction. In contrast, several heavily agricultural blocks in the Cauvery Basin exhibit seasonal fluctuations of 5-7 m, with pre-monsoon depths exceeding 12 m. Spatial and statistical analyses indicate strong correlations between rainfall variability and groundwater responses, especially in agriculturally intensive regions. Rainfall trend and groundwater fluctuation analyses highlight the influence of shifting monsoons on aquifer recharge and water security. The socio-economic assessment—highlighting the implications for agriculture, urban demand, and inter-state conflicts—emphasizes the need for integrated water resource management. These strategies include rainwater harvesting, regulated groundwater extraction, and crop planning based on climatic trends. These insights are relevant to other monsoon-dependent basins facing similar hydrological and socio-economic pressures under changing climate conditions.

Keywords

Hydroenvironmental variability / Groundwater dynamics / Monsoon rainfall / Integrated water resource management / Thamirabarani and Cauvery Basins

Funding

None.

Conflict of interest

The authors assert that there are no conflicts of interest.

References

[1] Venkatcharyulu, S, Viswanadh, GK. Runoff volume model for Godavari Sub-basin using HEC-RAS software. Modell Earth Syst Environ. 2022; 8:3577-3589. doi: 10.1007/s40808-021-01311-4

[2] Kulkarni, PP, Pardeshi, SD. Evaluation and interpolation of rainfall trends over the semi-arid upper godavari basin. Meteorol Atmos Phys. 2019; 131:1565-1576. doi: 10.1007/s00703-018-0652-z

[3] Brown, E, Skougstad, MW, Fishman, MJ. Methods for the Collection and Analysis of Water Samples for Dissolved Minerals and Gases. Ch. A1. United States: USGS Techniques of Water-Resources Investigations; 1970.

[4] Central Ground Water Board (CGWB). Ground Water Yearbook Tamil Nadu and UT of Puducherry (2018-19). Chennai: SECR; 2019.

[5] Central Water Commission. Water and Related Statistics. New Delhi: Ministry of Jal Shakti, Government of India; 2020.

[6] Clesceri, LS, Greenberg, AE, Eaton, AD. Standard Methods for the Examination of Water and Wastewater. 20^th ed. Washington, D.C: APHA, AWWA, WEF; 1998.

[7] Davina V, Gonsalves, Souza JD. Ecology Environment and Conservation. Vol. 5. New York: Syrawood Publishing House; 1999. p. 19-24.

[8] Dhamodharan, A, Shanthakumar, S, Ganapathy, GP. Assessment of seasonal disparity on hydrogeochemical facies distribution in Cooum River, India. Asian J Earth Sci. 2016; 9:27-35. doi: 10.3923/ajes.2016.27.35

[9] Elangovan, NS, Dharmendirakumar, M. Assessment of groundwater quality along the Cooum River, Chennai, Tamil Nadu, India. J Chem. 2013; 2013:672372. doi: 10.1155/2013/672372

[10] Etier, I, Murugan, CA, Kannan, N, Venkatesan, G. Measurement of secure power meter with smart IoT applications. J Green Eng. 2022; 10(12):12961-12972.

[11] Garcia, MG, Hidalgo, VM, Blesa, MA. Geochemistry of groundwater in the alluvial plain of Tucuman province, Argentina. Hydrogeol J. 2001; 9:597-610. doi: 10.1007/s10040-001-0166-4

[12] Govindaraj, V, Manokaran, K, Sathaiya, J, Baskar, P. Environmentally-friendly bio-coagulants: A cost-effective solution for groundwater pollution treatment. Asian J Water Environ Pollut. 2023; 20(3):19-28. doi: 10.3233/AJW230034

[13] Govindaraj, V, Sankar, JI, Gnanamanickkam, JNG, Amala, S. Demarcation of non-carcinogenic risk zones based on the intake of contaminated groundwater in an industrial area of Southern India using geospatial technique. Desalin Water Treat. 2022; 274:140-149. doi: 10.5004/dwt.2022.28901

[14] Hem, JD. Study and Interpretation of the Chemical Characteristics of Natural Water. Vol. 2254. United States: US Geological Survey; 1985.

[15] Indian Meteorological Department (IMD). Climatological Normals of Chennai (1991-2020).New Delhi: IMD Publications; 2022.

[16] Jayaraman, A, Chandrasekar, P. Groundwater quality assessment using GIS techniques: A case study of Chennai. Environ Earth Sci. 2017; 76(15):519.

[17] Joshi, P, Chauhan, A, Dua, P, Malik, S, Liou, YA. Physicochemical and biological analysis of river yamuna at palla station from 2009 to 2019. Sci Rep. 2022; 12:2870. doi: 10.1038/s41598-022-06900-6

[18] Biswas, B, Jadhav, RS, Nilima, T.Rainfall distribution and trend analysis for Upper Godavari basin, India from 100 years record ( 1911-2010). J Indian Soc Remote Sens. 2019; 47:1781-1792. doi: 10.1007/s12524-019-01011-8

[19] Mohamed Sheriff, KM, Zahir Hussain, A. Monitoring the quality of groundwater on the banks of the Cooum River at Chennai city Tamil Nadu, India. Adv Appl Sci Res. 2012; 3(6):3587-3592.

[20] Mishra, A, Singh, VP. Soil Conservation and Hydrology. United States: Water Resources Publications; 2003.

[21] Mohana, P, Nagamani, K, Muthusamy, S, VelmuruganPM. Environmental impact assessment of thamirabarani river basin, Tamil Nadu using remote sensing and GIS techniques. Indian J Sci Technol. 2018; 11(22):1-7. doi: 10.17485/ijst/2018/v11i22/106246

[22] Nageswara Rao, K, Swarna Latha, P, Ramesh Kumar, PV. Groundwater quality assessment for irrigation use in the Godavari Delta region of east coast India using IRWQI and GIS. Water Supply. 2022; 22(3):2612-2629. doi: 10.2166/ws.2021.454

[23] Patel, DP, Prasad, RK, Singh, R. Soil hydraulic properties and their impact on groundwater recharge in semi-arid regions. J Hydrol. 2013; 476:38-45. doi: 10.1016/j.jhydrol.2012.10.048

[24] Rajkumar, S, Selvakumar, S, Magesh, NS, Kaliraj, S, Venkatramanan, S. Seasonal variations in water quality parameters of Thamiraparani River. Environ Monit Assess. 2022; 194(3):178.

[25] Ramasamy SM. Urbanisation and its impact on groundwater levels in Chennai Metropolitan Area. J Hydrol Environ. 2015; 29(3):34-42.

[26] Ramesh, R, Purvaja, R, Ramesh, S, James, RA. Historical pollution trends in coastal environments of India. Environ Monit Assess. 2002; 79:151-176. doi: 10.1023/A:1020250717093

[27] Rathod, SD, Ghosh, S. Rainfall trend and variability in the semi-arid Godavari basin. J Water Clim Change. 2021; 12(8):3992-4006. doi: 10.2166/wcc.2021.003

[28] Ravisankar, N, Poogothal, SA. Groundwater quality in tsunami-affected areas of Sirkazhi Taluk, Tamil Nadu. Sci Tsunami Hazards. 2008; 27(1):47-55.

[29] Rao, GS, Rao, NS. Groundwater quality in a coastal region of Andhra Pradesh. Environ Monit Assess. 2010; 160:341-352. doi: 10.1007/s10661-008-0694-5

[30] Rao, NS, Subrahmanyam, A, Sudarshan, G, Srinivasulu, P, Reddy, GV, Nagamani, M. Hydrogeochemistry and groundwater quality in a coastal region of Andhra Pradesh. Environ Earth Sci. 2012; 66:2143-2169. doi: 10.1007/s12665-011-1448-0

[31] Saha, D, Sinha, UK. Influence of soil texture on groundwater recharge in India. Hydrogeol J. 2010; 18:123-134. doi: 10.1007/s10040-009-0506-2

[32] Sharma, BR, Rao, KV, Vittal, KPR. Soil water retention of major soil types in India. Agric Water Manag. 2006; 82(1-2):29-41. doi: 10.1016/j.agwat.2005.07.001

[33] Shirani, M, Afzali, KN, Jahan, S, Strezov, V, Sardo, MS. Pollution and contamination assessment of heavy metals in the sediments of Jazmurian playa in southeast Iran. Sci Rep. 2020; 10:4775. doi: 10.1038/s41598-020-61838-x

[34] Siosemarde, M, Kave, F, Pazira, E, Sedgh, H, Ghaderi, SJ. Relationship of TDS and EC. World Acad Sci Eng Technol. 2010; 46:258-260.

[35] Srinivas, Y, Hudson Oliver, D, Stanley Raj, A, Chandrasekar, N, Magesh, NS.Groundwater quality in Nandyal, Andhra Pradesh. Environ Earth Sci. 2013; 70:365-373. doi: 10.1007/s12665-012-2132-4

[36] Prasanna, MV, Chidambaram, S, Hameed, AS, Srinivasamoorthy, K. Hydrogeochemical analysis and evaluation of groundwater quality in the Gadilam river basin, Tamil Nadu, India. J Earth Syst Sci. 2011; 120(1):85-98. doi: 10.1007/s12040-011-0008-9

[37] Nageswara Rao, PV, Appa Rao, S, Subba Rao, N. Geochemical evolution of groundwater in the Western Delta region of River Godavari, Andhra Pradesh, India. Appl Water Sci. 2015; 7:813-822. doi: 10.1007/s13201-015-0294-y

[38] Government of Tamil Nadu. Tamil Nadu Water Resource Information and Management System (TNWRIMS). Chennai: Government of Tamil Nadu; 2023.

[39] Trivedy, RK, Goel, PK. Chemical and Biological Methods for Water Pollution Studies. Karad, India: Environmental Publication; 1986