Spatial variability ofδ^(18)O andδ^(2)H in North Pacific and Arctic Oceans surface seawater
Spatial variability of δ18O and δ~2H in North Pacific and Arctic Oceans surface seawater作者机构:National Marine Environmental Forecasting CenterBeijing 100081China State Key Laboratory of Severe Weather and Institute of Tibetan Plateau&Polar MeteorologyChinese Academy of Meteorological SciencesBeijing 100081China State Key Laboratory of Cryospheric ScienceNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China College of Geography and EnvironmentShandong Normal UniversityJinan 250014China College of Resources and EnvironmentUniversity of Chinese Academy of SciencesBeijing 100049China
出 版 物:《Advances in Polar Science》 (极地科学进展(英文版))
年 卷 期:2022年第33卷第3期
页 面:244-252页
核心收录:
基 金:funded by the National Natural Science Foundation of China (Grant no. 41771064) the National Key Basic Research Program of China (Grant no. 2019YFC1509100) the Basic Research Fund of Chinese Academy of Meteorological Sciences (Grant no. 2021Z006) the Project for Outstanding Youth Innovation Team in the Universities of Shandong Province (Grant no. 2019KJH011) the 6th CHINARE
主 题:stable water isotopes seawater salinity surface seawater North Pacific Ocean Arctic Ocean
摘 要:This study presents new observations of stable isotopic composition(δ^(18)O,δ^(2)H and deuterium excess)in surface waters of the North Pacific and Arctic Oceans that were collected during the sixth Chinese National Arctic Research Expedition(CHINARE)from mid-summer to early autumn ***δ^(18)O andδ^(2)H decrease with increasing latitudes from 39°N to 75°N,likely a result of spatial variability in evaporation/precipitation *** explanation is further confirmed by comparing theδ^(18)O-δ^(2)H relationship of seawater with that of ***,effects of freshwater inputs on seawater stable isotopic composition are also identified at 30°N-39°***,we find a non-significant relationship between the isotopic parameters(δ^(2)H andδ^(18)О)and salinity from 73°N northwards in the Arctic Ocean,implying that sea ice melting/formation may have some *** results suggest that the isotopic parametersδ^(2)H andδ^(18)Оare useful for tracing marine hydrological processes.