Stable isotopes in water from Lake Locknesjön, Sweden collected between 2013 and 2018

This dataset presents measurements of stable isotopes in water (δD and δ18O) from Lake Locknesjön, Sweden. Water samples were collected between 2013 and 2018 and were taken from different depths down to 20 m in the lake, as well as from the lake's main tributary and its outflow. Depending on the depth, the water samples were collected from the shore, by a diving team, or with a UWITEC gravity corer. Measurements of stable isotopes in water samples were conducted at the Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France. The δ18O was measured with a Finnigan MAT252 isotope ratio mass spectrometer with a precision of ±0.05‰ (two standard deviations). The δD was measured with a Picarro Analyzer (Cavity Ring-Down Spectroscopy) with a precision of±0.7‰ (one standard deviation).

本数据集收录了瑞典洛克讷申湖（Lake Locknesjön）水体中稳定同位素δD与δ18O的测定数据。水样采集周期为2013年至2018年，采集点位涵盖该湖水下0至20米的不同深度，同时包含湖泊主要支流与出水口的水样。根据采样水深的差异，水样分别通过岸边采集、潜水团队获取，或使用UWITEC重力采样器采集。水体样品的稳定同位素测试工作于法国吉夫河畔伊韦特（Gif-sur-Yvette）的气候与环境科学实验室（Laboratoire des Sciences du Climat et de l'Environnement，LSCE）完成。其中δ18O采用Finnigan MAT252同位素比率质谱仪测定，测量精度为±0.05‰（两倍标准偏差）；δD采用Picarro分析仪（腔环衰荡光谱法，Cavity Ring-Down Spectroscopy）测定，测量精度为±0.7‰（单倍标准偏差）。