Observed features of stable surface seawater isotopes across the Pacific, Indian and Southern oceans

作     者：Xuemei Wu Weijun Sun Biao Tian Baojuan Huai Zhiheng Du Minghu Ding Xuemei Wu;Weijun Sun;Biao Tian;Baojuan Huai;Zhiheng Du;Minghu Ding

作者机构：College of Geography and EnvironmentShandong Normal UniversityJinan 250014China State Key Laboratory of Severe WeatherChinese Academy of Meteorological SciencesBeijing 100081China State Key Laboratory of Cryospheric ScienceNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2024年第43卷第10期

页      面：33-39页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：The National Natural Science Foundation of China under contract No.42122047 the Basic Research Fund of Chinese Academy of Meteorological Sciences under contract Nos 2021Z006,2023Z015 and 2023Z005 the Chinese National Antarctic Science Expedition 

主　　题：spatial variability surface seawater isotopes δ18O-salinity relation water mass fronts 

摘      要：The marine hydrological process is still unclear due to scarce *** on stable water isotopes in surface seawater along the 33rd Chinese National Antarctic Science Expedition from November 2016 to April 2017,this study explored the hydrological processes in the Pacific,Indian and Southern *** results show that the Northwest Pacific(0°–26°N)is a region with strong evaporation(theδ18O-δD slope is 6.58),while the southern Indian Ocean is a region with strong precipitation(theδ18O-δD slope is 9.57).The influence of continental runoff and water mass mixing reduces the correlation betweenδ18O and salinity in the eastern Indian *** characteristics of the isotopes and hydrological parameters indicate that the Agulhas Front and sub-Tropical Convergence do not merge in the Antarctic–Indian Ocean *** freezing of sea ice near the Antarctic continent decreases theδ18O andδD by 0.40‰and 7.0‰,respectively,compared with those near 67°*** study is helpful for understanding marine hydrological processes and promoting the understanding and research of the nature of ocean responses in the context of climate change.