A New Simulation-Optimization Framework for Estimation of Submarine Groundwater Discharge Based on Hydrodynamic Modeling and Isotopic Data

Yu, Jiang1,2; Tian, Yong2,3; Wang, Xuejing2; Wang, Xiaoli2,4; Lancia, Michele2,5; Li, Hailong2; Andrews, Charles B.2,6; Zheng, Chunmiao2,5

2022-12-16

10.1029/2022GL098893

GEOPHYSICAL RESEARCH LETTERS   影响因子和分区

0094-8276

1944-8007

Estimation of submarine groundwater discharge (SGD) has traditionally relied on isotopic mass balance calculation, which is a form of regional box modeling. Here we propose an entirely new approach for SGD estimation by coupling a general marine hydrodynamic simulation model with a global optimization algorithm. The newly developed approach has the distinct advantage of being able to map the spatial distribution of SGD. The results of this study show that the estimated SGD exhibits a strong spatial heterogeneity. Furthermore, this study underscores the important effect of isotope sampling time on SGD estimation. Thus, the fluctuation of seawater level and a lag in isotope activity to water level changes should be considered to assure the representativeness of measured isotope activities. Overall, the simulation-optimization framework adds a versatile and powerful new tool for more detailed SGD estimation.

submarine groundwater discharge simulation-optimization approach ocean-land interactions isotopic mass balance modeling

SCI

英语

NI论文

通讯

National Natural Science Foundation of China["41890852","42071244"] ; Shenzhen Science and Technology Innovation Commission[20200925174525002]

Geology

Geosciences, Multidisciplinary

WOS:000924929700001

AMER GEOPHYSICAL UNION

GEOSCIENCES

Web of Science

1.Peking Univ, Coll Engn, Inst Water Sci, Beijing, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Municipal Engn Lab Environm IoT Technol, Shenzhen, Peoples R China
4.Univ Hong Kong, Dept Civil Engn, Hong Kong, Peoples R China
5.EIT Inst Adv Study, Ningbo, Peoples R China
6.SS Papadopulos & Associates Inc, Rockville, MD USA

Yu, Jiang,Tian, Yong,Wang, Xuejing,et al. A New Simulation-Optimization Framework for Estimation of Submarine Groundwater Discharge Based on Hydrodynamic Modeling and Isotopic Data[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(23).

Yu, Jiang.,Tian, Yong.,Wang, Xuejing.,Wang, Xiaoli.,Lancia, Michele.,...&Zheng, Chunmiao.(2022).A New Simulation-Optimization Framework for Estimation of Submarine Groundwater Discharge Based on Hydrodynamic Modeling and Isotopic Data.GEOPHYSICAL RESEARCH LETTERS,49(23).

Yu, Jiang,et al."A New Simulation-Optimization Framework for Estimation of Submarine Groundwater Discharge Based on Hydrodynamic Modeling and Isotopic Data".GEOPHYSICAL RESEARCH LETTERS 49.23(2022).