Quantifying Seepage-Face Evaporation and Its Effects on Groundwater Flow and Solute Transport in Small-Slope Tidal Flat

Luo，Manhua1,2; Wang，Tianwei1,2,3; Geng，Xiaolong4,5; Yu，Shengchao6; Li，Hailong1,2

2024-06-28

10.1029/2024GL109173

Geophysical Research Letters   影响因子和分区

0094-8276

1944-8007

Large-scale seepage faces occur on tidal flats with gentle slope, which are widely distributed worldwide. Evaporation on these seepage faces, leading to salt retention and accumulation, may significantly impact the density-dependent groundwater flow beneath the tidal flats. However, due to nonlinear complexities of the groundwater flow and solute transport on seepage faces, explicit boundary conditions and numerical models to quantify these processes are lacking. In this study, we present both mathematical and numerical models to quantify these processes. Compared to the results of our previous study, this paper shows that seepage-face evaporation can (a) significantly increase the groundwater salinity in the upper intertidal zone, and form multiple groundwater circulation cells in the intertidal zone, (b) cause the disappearance of multiple seepage-faces and reduce the spatial extent of seepage faces notably, (c) and intensify the groundwater and salt exchange as well as the seawater-groundwater circulation through the intertidal zone.

evaporation groundwater flow numerical modeling seepage face solute transport tidal flat

SCI ; EI

英语

第一 ; 通讯

20242516286222

Evaporation ; Groundwater ; Groundwater flow ; Seepage ; Solute transport ; Tides ; Wetlands

Groundwater:444.2 ; Seawater, Tides and Waves:471.4 ; Fluid Flow, General:631.1 ; Chemical Operations:802.3 ; Mathematics:921 ; Classical Physics; Quantum Theory; Relativity:931

GEOSCIENCES

2-s2.0-85196314400

Scopus

1.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Guangdong-Hong Kong Joint Laboratory for Soil and Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China
3.Department of Earth Sciences,The University of Hong Kong,Hong Kong
4.Department of Earth Sciences,University of Hawai'i at Mānoa,Honolulu,United States
5.Water Resources Research Center,University of Hawai'i at Mānoa,Honolulu,United States
6.Department of Civil and Resource Engineering and Center for Water Resources Studies,Dalhousie University,Halifax,Canada

Luo，Manhua,Wang，Tianwei,Geng，Xiaolong,et al. Quantifying Seepage-Face Evaporation and Its Effects on Groundwater Flow and Solute Transport in Small-Slope Tidal Flat[J]. Geophysical Research Letters,2024,51(12).

Luo，Manhua,Wang，Tianwei,Geng，Xiaolong,Yu，Shengchao,&Li，Hailong.(2024).Quantifying Seepage-Face Evaporation and Its Effects on Groundwater Flow and Solute Transport in Small-Slope Tidal Flat.Geophysical Research Letters,51(12).

Luo，Manhua,et al."Quantifying Seepage-Face Evaporation and Its Effects on Groundwater Flow and Solute Transport in Small-Slope Tidal Flat".Geophysical Research Letters 51.12(2024).