Submarine groundwater discharge around Taiwan

Chen Tung Arthur Chen; Jing Zhang; Tsung Ren Peng; Selvaraj Kandasamy; Deli Wang; Yi Jie Lin

doi:10.1007/s13131-018-1216-2

Submarine groundwater discharge around Taiwan

Chen Tung Arthur Chen^*, Jing Zhang, Tsung Ren Peng, Selvaraj Kandasamy, Deli Wang, Yi Jie Lin

^*Corresponding author for this work

Department of Natural and Environmental Science

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A preliminary study shows that the submarine groundwater discharge (SGD) exists around Taiwan even though groundwater overdrawing on the island is serious. Fifteen of the 20 sites studied for major anions and cations recorded a clear SGD signal with freshwater outflow. A total of 278 salinity and major ion measurements were made. Sixteen nearly freshwater SGD (salinity⩽1.0) samples were obtained, providing strong and direct evidence for the existence of fresh meteoric groundwater entering the ocean from Taiwan. The total SGD flux is estimated to be 1.07×10¹⁰ t/a which is about 14% of the annual river output. The freshwater component of the SGD is 3.85×10⁹ t which is about 5.2% of the annual river discharge in Taiwan. The collected SGD has a composition similar to seawater with an addition of Ca, CO₃ and HCO₃ due to dissolution of calcareous rocks. Some samples with high Cl/(Na+K) may indicate pollution.

Original language	English
Pages (from-to)	18-22
Number of pages	5
Journal	Acta Oceanologica Sinica
Volume	37
Issue number	6
DOIs	https://doi.org/10.1007/s13131-018-1216-2
State	Published - 2018/06/01

Keywords

Taiwan
flux
major components
seawater intrusion
submarine groundwater discharge

ASJC Scopus subject areas

Oceanography
Aquatic Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s13131-018-1216-2

Cite this

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title = "Submarine groundwater discharge around Taiwan",

abstract = "A preliminary study shows that the submarine groundwater discharge (SGD) exists around Taiwan even though groundwater overdrawing on the island is serious. Fifteen of the 20 sites studied for major anions and cations recorded a clear SGD signal with freshwater outflow. A total of 278 salinity and major ion measurements were made. Sixteen nearly freshwater SGD (salinity⩽1.0) samples were obtained, providing strong and direct evidence for the existence of fresh meteoric groundwater entering the ocean from Taiwan. The total SGD flux is estimated to be 1.07×1010 t/a which is about 14% of the annual river output. The freshwater component of the SGD is 3.85×109 t which is about 5.2% of the annual river discharge in Taiwan. The collected SGD has a composition similar to seawater with an addition of Ca, CO3 and HCO3 due to dissolution of calcareous rocks. Some samples with high Cl/(Na+K) may indicate pollution.",

keywords = "Taiwan, flux, major components, seawater intrusion, submarine groundwater discharge",

author = "Chen, {Chen Tung Arthur} and Jing Zhang and Peng, {Tsung Ren} and Selvaraj Kandasamy and Deli Wang and Lin, {Yi Jie}",

note = "Publisher Copyright: {\textcopyright} 2018, The Chinese Society of Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2018",

month = jun,

day = "1",

doi = "10.1007/s13131-018-1216-2",

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T1 - Submarine groundwater discharge around Taiwan

AU - Chen, Chen Tung Arthur

AU - Zhang, Jing

AU - Peng, Tsung Ren

AU - Kandasamy, Selvaraj

AU - Wang, Deli

AU - Lin, Yi Jie

PY - 2018/6/1

Y1 - 2018/6/1

N2 - A preliminary study shows that the submarine groundwater discharge (SGD) exists around Taiwan even though groundwater overdrawing on the island is serious. Fifteen of the 20 sites studied for major anions and cations recorded a clear SGD signal with freshwater outflow. A total of 278 salinity and major ion measurements were made. Sixteen nearly freshwater SGD (salinity⩽1.0) samples were obtained, providing strong and direct evidence for the existence of fresh meteoric groundwater entering the ocean from Taiwan. The total SGD flux is estimated to be 1.07×1010 t/a which is about 14% of the annual river output. The freshwater component of the SGD is 3.85×109 t which is about 5.2% of the annual river discharge in Taiwan. The collected SGD has a composition similar to seawater with an addition of Ca, CO3 and HCO3 due to dissolution of calcareous rocks. Some samples with high Cl/(Na+K) may indicate pollution.

AB - A preliminary study shows that the submarine groundwater discharge (SGD) exists around Taiwan even though groundwater overdrawing on the island is serious. Fifteen of the 20 sites studied for major anions and cations recorded a clear SGD signal with freshwater outflow. A total of 278 salinity and major ion measurements were made. Sixteen nearly freshwater SGD (salinity⩽1.0) samples were obtained, providing strong and direct evidence for the existence of fresh meteoric groundwater entering the ocean from Taiwan. The total SGD flux is estimated to be 1.07×1010 t/a which is about 14% of the annual river output. The freshwater component of the SGD is 3.85×109 t which is about 5.2% of the annual river discharge in Taiwan. The collected SGD has a composition similar to seawater with an addition of Ca, CO3 and HCO3 due to dissolution of calcareous rocks. Some samples with high Cl/(Na+K) may indicate pollution.

KW - Taiwan

KW - flux

KW - major components

KW - seawater intrusion

KW - submarine groundwater discharge

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U2 - 10.1007/s13131-018-1216-2

DO - 10.1007/s13131-018-1216-2

M3 - 学術論文

AN - SCOPUS:85048498098

SN - 0253-505X

VL - 37

SP - 18

EP - 22

JO - Acta Oceanologica Sinica

JF - Acta Oceanologica Sinica

IS - 6

ER -

Submarine groundwater discharge around Taiwan

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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