Paper Details

Lakes are bodies of water, where flow from one or several rivers is impounded by a natural obstacle.Groundwater is an important component of lake budgets. In this study, isotope footprint compositions and analysis ofhydrogeochemical parameters of Ooty lake (2,220m above MSL), Pookode lake (770m above MSL), Mananchira lake(20m above MSL) and Kollam Chira lake (1m below MSL) are carried out. The impacts of altitude effect on the isotopiccomposition in lakes are assessed. The water type and water mixing patterns of lakes and wells were identified from thehydrogeochemical data. The stable hydrogen isotope composition of the lakes and ground waters was determined. Theisotopic results show a vivid relationship with altitude which closely approaches a linear correlation. The precipitationand surface waters become increasingly depleted in deuterium with increasing altitude and decreasing temperature. Thelake waters at high elevations on the leeward side of mountain ranges are strongly depleted in deuterium as compared towaters on the windward side. Continental effect is also clearly visible in this study. There is observed a higher depletionof isotopes in water samples from Ooty lake, which is farthest from the Calicut coast.

Arya Satheesan, P Jegathambal, Blessy Thomas, P. Sundarambal, “Altitude effect on deuterium isotopic composition of lakes and hydrogeochemical parameters of groundwater in humid and semi arid regions”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 2, pp. 1224-1232, February 2018.