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Chapter 12 - Assessing submarine groundwater discharge and nutrient fluxes along the southwest coast of India. In: Ecohydrology of Kerala - River Catchments and Coastal Backwaters

Departments

Global Change Impacts and Adaptation

Abstract

Submarine groundwater discharge (SGD) is a significant source of nutrients and solutes to the sea, but its presence in the southwest coast of India is not well understood. This study conducted comprehensive onshore/offshore sampling and monitoring to investigate SGD in the region. By analyzing groundwater levels, sea surface temperature, physicochemical characteristics of coastal groundwater, porewater and seawater, as well as radon measurements, potential SGD areas were identified. Using a water balance approach, submarine groundwater discharge and nutrient fluxes of dissolved inorganic nitrogen, phosphate and silicate were estimated for Thiruvananthapuram and Kozhikode regions. The results indicate higher nutrient fluxes in the Kozhikode area due to favourable geology and land use practices. Further research using radium isotope analysis and seepage metre deployment will contribute to a better understanding of SGD dynamics and nutrient transport along the southwest coast of India.

Cite this activity

Ramasamy M., George M.E., Babu D.S.S. and Moosdorf N. (2024) Chapter 12 - Assessing submarine groundwater discharge and nutrient fluxes along the southwest coast of India. In: Gnana Thanga Vincent S., Jennerjahn T.C., Kunjupillai S. & Chattopadhyay S. (eds.). Ecohydrology of Kerala - River Catchments and Coastal Backwaters (pp. 191-207). 10.1016/B978-0-323-95606-2.00017-6

Details

Research topics
Date 15.11.2024
Pages 191-207
Book Title Ecohydrology of Kerala - River Catchments and Coastal Backwaters
Editors Gnana Thanga Vincent S., Jennerjahn T.C., Kunjupillai S. and Chattopadhyay S.
ISBN 978-0-323-95606-2
Open Access Closed Access
Open Access Status Closed Access
Eprints_link https://cris.leibniz-zmt.de/id/eprint/6120

Research Spectrum

Earth and Planetary Sciences

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