SGER: Exploration of Nitrite Isotopes and their Link to Nitrogen Biogeochemistry in the Arabian Sea Oxygen Minimum Zone

美国伍兹霍尔海洋研究所（Woods Hole Oceanographic institute）的一名科学家提议利用前往阿拉伯海缺氧区（Arabian Sea oxygen deficient zone）的游轮，收集和分析一套独特的亚硝酸盐del15N和del18O样品，并收集和保存硝酸盐del15N和del18O样品。亚硝酸盐同位素数据，这是同类数据中的第一个，将为这种低氧环境中氮的来源和汇提供新的见解。亚硝酸盐和硝酸盐双同位素数据将用于确定N2固定在支持该地区过量N2生产中的作用。

ABSTRACTOCE-0748674A scientist from Woods Hole Oceanographic Institution proposes to take advantage of a cruise to the Arabian Sea oxygen deficient zone to collect and analyze a unique suite of samples for nitrite del15N and del18O, as well as collect and preserve samples for nitrate del15N and del18O. The nitrite isotopic data, a first of its kind, would provide new insights into the sources and sinks of nitrogen within this low oxygen environment. The nitrite and nitrate dual isotope data would be used to determine the role of N2 fixation in supporting the production of excess N2 in this region.