Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay

Hequan Gu; Feng Zhao; Zhixin Ni; Meigui Wu; Li Zhao; Aicui Dang; Dongmei Li; Minxia Zhang; Qin Hu

doi:10.1007/s13131-023-2181-y

Volume 42 Issue 8

Aug. 2023

Turn off MathJax

Article Contents

Article Navigation > Acta Oceanologica Sinica > 2023 > 42(8): 24-31

Hequan Gu, Feng Zhao, Zhixin Ni, Meigui Wu, Li Zhao, Aicui Dang, Dongmei Li, Minxia Zhang, Qin Hu. Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay[J]. Acta Oceanologica Sinica, 2023, 42(8): 24-31. doi: 10.1007/s13131-023-2181-y

Citation:

Hequan Gu, Feng Zhao, Zhixin Ni, Meigui Wu, Li Zhao, Aicui Dang, Dongmei Li, Minxia Zhang, Qin Hu. Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay[J]. Acta Oceanologica Sinica, 2023, 42(8): 24-31. doi: 10.1007/s13131-023-2181-y

Citation:

Hequan Gu, Feng Zhao, Zhixin Ni, Meigui Wu, Li Zhao, Aicui Dang, Dongmei Li, Minxia Zhang, Qin Hu. Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay[J]. Acta Oceanologica Sinica, 2023, 42(8): 24-31. doi: 10.1007/s13131-023-2181-y

PDF( 1065 KB)

Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay

doi: 10.1007/s13131-023-2181-y

Hequan Gu^{1, 2, 3, T},
Feng Zhao^{1, 2, 3},
Zhixin Ni^{1, 2, 3
,
,},
Meigui Wu¹,
Li Zhao^{1, 2, 3},
Aicui Dang¹,
Dongmei Li^{1, 2, 3},
Minxia Zhang⁴,
Qin Hu⁴

1.
South China Sea Environment Monitoring Center, State Oceanic Administration, Guangzhou 510300, China
2.
Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou 510300, China
3.
Key Laboratory of Marine Environmental Survey Technology and Application, Ministry of Natural Resources, Guangzhou 510300, China
4.
CNOOC Research Institute Co., Ltd., Beijing 100028, China

Funds: The Project of Key Laboratory of Marine Environmental Survey Technology and Application, Ministry of Natural Resources under contract No. MESTA-2021-D006; the China Ocean Development Foundation under contract No. CODF-002-ZX-2021; the Science and Technology Plan Projects of Guangdong Province under contract No. 2021B1212050025; the Director’s Foundation of South China Sea Bureau of Ministry of Natural Resources under contract No. 230201; the Research Fund Program of Guangdong Provincial Key Laboratory of Applied Marine Biology under contract No. LAMB20221007; the Natural Science Foundation of Guangdong Province of China under contract No. 2017A030310592; the Key Program of Bureau Director of State Oceanic Administration under contract No. 180104; the Open Project of State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences under contract No. LTO1709.

More Information

Corresponding author: nzx2004@163.com
Received Date: 2023-01-28
Accepted Date: 2023-03-11

Available Online: 2023-05-12

Publish Date: 2023-08-31

Abstract

Abstract

Submarine groundwater discharge (SGD), which can be traced using naturally occurring radium isotopes, has been recognized as a significant nutrient source and land-ocean interaction passage for the coastal waters of the Daya Bay, China. However, uncertainties in assessing SGD fluxes must still be discussed in detail. In this study, we attempted to utilize the Monte Carlo method to evaluate the uncertainties of radium-derived SGD flux in the northeast and entirety of the Daya Bay. The results show that the uncertainties of the SGD estimate in the northeast bay are very sensitive to variations in excess radium inventories as well as radium inputs from bottom sediments, while the uncertainties of the SGD estimate for the entire bay are strongly affected by fluctuations in radium inputs from bottom sediments and radium end-members of SGD. This study will help to distinguish the key factors controlling the accuracy of SGD estimates in similar coastal waters.
- submarine groundwater discharge (SGD),
- radium isotopes,
- Monte-Carlo method,
- Daya Bay,
- uncertainty analysis

These authors contributed equally to this work.

FullText(HTML)

References(19)

References

Burnett W C, Bokuniewicz H, Huettel M, et al. 2003. Groundwater and pore water inputs to the coastal zone. Biogeochemistry, 66(1–2): 3–33

Charette M A, Buesseler K O, Andrews J E. 2001. Utility of radium isotopes for evaluating the input and transport of groundwater-derived nitrogen to a Cape Cod estuary. Limnology and Oceanography, 46(2): 465–470. doi: 10.4319/lo.2001.46.2.0465

Chen Xiaogang, Lao Yanling, Wang Jinlong, et al. 2018. Submarine groundwater-borne nutrients in a tropical bay (Maowei Sea, China) and their impacts on the oyster aquaculture. Geochemistry, Geophysics, Geosystems, 19(3): 932–951

Cheng Qingxian. 2000. Guangdong Province Chronicle-Ocean and Island Chronicles (in Chinese). Guangzhou: Guangdong Peoples Publishing House, 79–80

Gao Jingyan, Wang Xuejing, Zhang Yan, et al. 2018. Estimating submarine groundwater discharge and associated nutrient inputs into Daya Bay during spring using radium isotopes. Water Science and Engineering, 11(2): 120–130. doi: 10.1016/j.wse.2018.06.002

Garcia-Solsona E, Garcia-Orellana J, Masqué P, et al. 2008. Uncertainties associated with ²²³Ra and ²²⁴Ra measurements in water via a Delayed Coincidence Counter (RaDeCC). Marine Chemistry, 109(3–4): 198–219

Gu Hequan, Moore W S, Zhang Lei, et al. 2012. Using radium isotopes to estimate the residence time and the contribution of submarine groundwater discharge (SGD) in the Changjiang effluent plume, East China Sea. Continental Shelf Research, 35: 95–107. doi: 10.1016/j.csr.2012.01.002

Han Wuying. 1995. Chemistry in Daya Bay, in Marine Chemistry of the Nansha Islands and South China Sea (in Chinese). Beijing: China Ocean Press, 60–103

Hancock G J, Murray A S. 1996. Source and distribution of dissolved radium in the Bega River estuary, southeastern Australia. Earth and Planetary Science Letters, 138(1–4): 145–155

Li Chunhou, Xu Shannan, Du Feiyan, et al. 2015. Responses of the Daya Bay ecosystem to human activities and health assessment. Chinese Fishery Quality and Standards (in Chinese), 5(1): 1–10

Moore W S. 1976. Sampling ²²⁸Ra in the deep ocean. Deep Sea Research and Oceanographic Abstracts, 23(7): 647–651. doi: 10.1016/0011-7471(76)90007-3

Moore W S. 1996. Large groundwater inputs to coastal waters revealed by ²²⁶Ra enrichment. Nature, 380(6575): 612–614. doi: 10.1038/380612a0

Moore W S. 2010. The effect of submarine groundwater discharge on the ocean. Annual Review of Marine Science, 2: 59–88. doi: 10.1146/annurev-marine-120308-081019

Moore W S, Arnold R. 1996. Measurement of ²²³Ra and ²²⁴Ra in coastal waters using a delayed coincidence counter. Journal of Geophysical Research, 101(C1): 1321–1329. doi: 10.1029/95JC03139

Moore W S, Blanton J O, Joye S B. 2006. Estimates of flushing times, submarine groundwater discharge, and nutrient fluxes to Okatee Estuary, South Carolina. Journal of Geophysical Research: Oceans, 111(C9): C09006. doi: 10.1029/2005JC003041

Rama, Moore W S. 1996. Using the radium quartet for evaluating groundwater input and water exchange in salt marshes. Geochimica et Cosmochimica Acta, 60(23): 4645–4652. doi: 10.1016/S0016-7037(96)00289-X

Rodellas V, Garcia-Orellana J, Trezzi G, et al. 2017. Using the radium quartet to quantify submarine groundwater discharge and porewater exchange. Geochimica et Cosmochimica Acta, 196: 58–73. doi: 10.1016/j.gca.2016.09.016

Wang Xuejing, Li Hailong, Zheng Chunmiao, et al. 2018. Submarine groundwater discharge as an important nutrient source influencing nutrient structure in coastal water of Daya Bay, China. Geochimica et Cosmochimica Acta, 225: 52–65. doi: 10.1016/j.gca.2018.01.029

Zhang Yan, Li Hailong, Guo Huaming, et al. 2020. Improvement of evaluation of water age and submarine groundwater discharge: a case study in Daya Bay, China. Journal of Hydrology, 586: 124775. doi: 10.1016/j.jhydrol.2020.124775

Relative Articles

Supplements(1)