文献类型：期刊文献

英文题名：Thermal Structure of Water Exchange at the Entrance of a Tide-Dominated Strait

作者：Bai, Peng[1];Wang, Jia[2];Zhao, Hui[3];Li, Bo[1];Yang, Jingling[1];Li, Peiliang[4];Zhang, Tianyu[5]

机构：[1]Zhejiang Ocean Univ, Marine Sci & Technol Coll, Zhoushan 316022, Peoples R China;[2]NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48104 USA;[3]Guangdong Ocean Univ, Coll Chem & Environm Sci, Zhanjiang 524088, Peoples R China;[4]Zhejiang Univ, Ocean Coll, Zhoushan 316021, Peoples R China;[5]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China

年份：2022

卷号：14

期号：13

外文期刊名：REMOTE SENSING

收录：SCI-EXPANDED(收录号：WOS:000824529200001)、、EI(收录号：20222712320150)、Scopus(收录号：2-s2.0-85133242286)、WOS

基金：This research was funded by National Natural Science Foundation of China, grant numbers 42106017, 42076162, and 41976200; the GuangDong Basic and Applied Basic Research Foundation, grant number 2020A1515110516; the Special Fund for Technology Development of Zhanjiang City, grant number 2020A01008; and the Scientific Research Foundation for Advanced Talents of Zhejiang Ocean University, grant number 11105093522.

语种：英文

外文关键词：sea surface temperature; MODIS; VIIRS; ROMS; upwelling; residual current; tidal mixing

外文摘要：In summer, westward residual flow in the Qiongzhou Strait (QS) drives a water transport through the strait into the Beibu Gulf, playing a vital role in modifying the gulf-scale circulation. By utilizing multi-source observations, realistic simulations, as well as idealized modeling, the water exchange process at the western entrance of the QS was explored from the perspective of thermal structure. High-resolution satellite sea-surface temperature images captured an interesting thermal phenomenon in the studied region, i.e., a trident-shaped warm water tongue. Validations of numerical results suggested satisfactory model performance in reproducing the trident-shaped warm water tongue. Modeling results together with cruise observations indicates extremely weak stratification in the studied region, which is a result of local intense tidal mixing. The cold upwelling water developed at the eastern side of the strait arrived at the western entrance by the westward residual flow, and then encountered and communicated with the well-mixed warm gulf water there. The alternatively deep/shallow topography (sea trough/ridge) triggers spatial variability in tidal current intensity: stronger currents over the deep area with weaker flow above the shallow region leads to alternatively warm/cold thermal distribution in the cross-isobath direction. Further investigation demonstrates that, through modifying the circulation and regulating the intensity of upwelling on the eastern side of the QS, wind also makes a significant contribution to the thermal distribution at the western entrance of the QS.