Greenhouse gas and water chemistry data for northern lakes in western Canada

The data provided in one xlsx file has three tabs: “ReadMe”, “Lake_Info”, and “metadata.” “metadata“ contains field and laboratory data for samples collected from 20 lakes throughout Alberta and the Northwest Territories in 2018 and 2019. Greenhouse gas fluxes and water quality metrics (dissolved oxygen, water temperature, conductivity and pH) were measured in the field using a portable gas analyzer (Los Gatos Research, California) and a handheld water monitor (Yellow Springs Instruments), respectively. Other surface water data represent water samples collected in the field and analyzed at the University of Alberta. Dissolved methane and ebullitive methane and carbon dioxide concentrations were analyzed at the Catchment and Wetland Sciences Laboratory. Dissolved organic carbon and nitrogen and ions concentrations were measures at Natural Resources Analytical Laboratory. Chlorophyll a concentrations were measured at the Biogeochemical Analytical Service Laboratory. See “ReadMe” tab for more information on the type of data represented and their analysis methods. “Lake_Info” contains the lake IDs, permafrost zone, coordinates (decimal degrees), water column depths (meters), and surface areas (hectares) for the study lakes included in the metadata.本数据集以单个XLSX文件提供，包含三个工作表："ReadMe"、"Lake_Info"与"元数据（metadata）"。元数据工作表包含2018至2019年间，从阿尔伯塔省与加拿大西北地区全境20个湖泊采集的样本的野外实测与实验室分析数据。其中，温室气体通量与水质指标（涵盖溶解氧、水温、电导率及pH值）分别借助便携式气体分析仪（美国加利福尼亚州Los Gatos Research公司生产）与手持式水质监测仪（Yellow Springs Instruments公司生产）在野外完成测定。其余地表水相关数据，则为野外采集并送至阿尔伯塔大学完成分析的水样检测结果。溶解态甲烷、冒泡态甲烷与二氧化碳浓度均在流域与湿地科学实验室完成分析；溶解态有机碳、氮及离子浓度的检测工作由自然资源分析实验室负责；叶绿素a浓度则在生物地球化学分析服务实验室完成测定。有关本次数据集涵盖的数据类型与分析方法的详细信息，请参阅"ReadMe"工作表。"Lake_Info"工作表包含元数据中所收录研究湖泊的湖泊编号、永久冻土带分区、坐标（十进制度格式）、水柱深度（单位：米）与表面积（单位：公顷）。