A study on identification of submarine groundwater discharge in northern east coast of India

被引：21

作者：

Krishan, Gopal ^{[1
]}

Rao, M. Someshwar ^{[1
]}

Kumar, C. P. ^{[1
]}

Kumar, Sudhir ^{[1
]}

Rao, M. Ravi Anand ^{[2
]}

机构：

[1] Natl Inst Hydrol, Roorkee 247667, Uttarakhand, India

[2] KGCE, Raigad 410201, Maharastra, India

来源：

INTERNATIONAL CONFERENCE ON WATER RESOURCES, COASTAL AND OCEAN ENGINEERING (ICWRCOE'15) | 2015年 / 4卷

关键词：

submarine groundwater discharge; east coast; tracer; radon; ZDROJ SUDETY MOUNTAINS; SW POLAND; MEDICINAL GROUNDWATERS; RADON CONCENTRATION; RN-222; RADIUM; WATERS; BASIN; TRACERS; FLORIDA;

D O I：

10.1016/j.aqpro.2015.02.002

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

In the present study, an attempt has been made to identify submarine groundwater discharge in two districts of West Bengal, India through in situ radon (Rn-222) monitoring. The investigations indicated relatively high Rn-222 activities (average: 4.98 +/- 0.83 kBq m(-3)) in the coastal waters revealing considerable submarine groundwater discharge (SGD). The electrical conductivity (EC) of groundwater ranged from 850-5000 mu S cm(-1) with an average of 1385 mu S cm(-1). The variation in Radon and EC corresponds to discharge of fresh groundwater to the sea. The SGD is generally a combination of fresh groundwater and re-circulated seawater which is controlled by hydraulic gradient in the adjacent aquifer, and varying tidal conditions in the coastal waters. The study indicates the possibility of identifying groundwater discharge through long coastline in India. The SGD can be harnessed for meeting human needs wherever required. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：3 / 10

页数：8

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