Physical and chemical parameters in the water column of Lake 578, southern Greenland 2016-2019

This dataset includes physical and chemical parameters in the water column of Lake 578 (61.08° North, 45.61° West), southern Greenland. In order to validate the application of a relatively new paleothermometer (branched glycerol dialkyl glycerol tetraether) in the Arctic, Lake 578 was selected as a suitable location, because human activity in the lake catchment today is minimal, and vegetation in the area is relatively stable. Therefore, the physical and chemical parameters of Lake 578 were investigated. Lake water temperature at 2.5 meters (m) (since summer 2017), 5 m, 7.5 m, 10 m, 12.5 m (since summer 2018), and 14 m depth with 6 hour resolution were measured with Onset HOBO UTBI-001 TidbiT temperature data loggers from summer 2016 to summer 2019. Temperature, specific conductivity, pH, and dissolved oxygen were measured with a Hydrolab MS5 in the summers of 2016, 2017, 2018, and 2019.

本数据集涵盖格陵兰南部578湖（Lake 578，北纬61.08°，西经45.61°）水柱的理化参数。为验证一种新兴古温度计（paleothermometer）——分支甘油二烷基甘油四醚（branched glycerol dialkyl glycerol tetraether）在北极区域的应用可行性，研究团队选定该湖作为适宜研究点位，原因在于该湖流域当前人类活动极少，区域植被相对稳定。为此，研究人员对578湖的理化参数开展了调查。2016年夏季至2019年夏季期间，研究人员采用Onset HOBO UTBI-001 TidbiT温度数据记录仪，以6小时的分辨率对2.5米（2017年夏季起）、5米、7.5米、10米、12.5米（2018年夏季起）及14米深度的湖水温度进行了测定。2016至2019年的夏季，研究人员使用Hydrolab MS5设备对湖水温度、比电导率、pH值及溶解氧进行了监测。