Date for： Nitrate-nitrite isotopic exchange Unveiling its influence on isotope effect estimates in nitrate assimilation in the Cosmonaut Sea

The data were obtained from samples collected between February 2 and March 10, 2022 in the Cosmonaut Sea (62-67°S, 45-60°E).

本数据集的数据取自2022年2月2日至3月10日于宇航员海（Cosmonaut Sea，62°S-67°S、45°E-60°E）采集的样本。