文献类型：期刊文献

英文题名：Driving mechanisms of monthly ocean front variations in a typical mariculture bay: insight from quantitative analysis of dual water isotopes

作者：Cao, Ruixue[1,2,3];Lao, Qibin[1,2,3];Jin, Guangzhe[1,2,3];Chen, Chunqing[1];Lu, Xuan[4];Yao, Haoyu[1];Chen, Fajin[1,2,3]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, 1 Haida Rd, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Key Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China;[3]Guangdong Ocean Univ, Dept Educ Guangdong Prov, Key Lab Climate Resources & Environm Continental S, Zhanjiang 524088, Peoples R China;[4]Jimei Univ, Polar & Marine Res Inst, Coll Harbor & Coastal Engn, Xiamen 361021, Peoples R China

年份：2025

卷号：208

外文期刊名：MARINE ENVIRONMENTAL RESEARCH

收录：SCI-EXPANDED(收录号：WOS:001483548600001)、、EI(收录号：20251518207877)、Scopus(收录号：2-s2.0-105002143860)、WOS

基金：This study was supported by the National Natural Science Founda-tion of China (U1901213, 92158201) , College Student Innovation Training Program of Guangdong Ocean University (202310566007) , and Innovation and Entrepreneurship Project of Shantou (2021112176541391) .

语种：英文

外文关键词：Ocean fronts; Dual water isotopes; Water mass mixing; Runoff input; Zhanjiang bay

外文摘要：The ocean front in the estuary plays a key role in regulating the transport of terrestrial pollutants into the ocean. It also significantly impacts the eco-environment of coastal and estuary waters. This study conducted monthly investigations of hydrology and dual water isotopes in Zhanjiang Bay spanning from January to December 2019, quantifying the contributions of various water masses in the region and exploring the mechanisms behind changes in frontal intensity. The results showed that the salinity front began to strengthen in the early rainy season and peaked in August, while its intensity was generally weaker in the dry season. This seasonal variation is attributed to the increased contribution of riverine freshwater input during the rainy season, rising from less than 5 % in the dry season to approximately 15 % in the rainy season. Importantly, the strengthening of the ocean front may lead to the accumulation of land-based pollutants, such as nutrients, within the bay, thereby deteriorating water quality.