Temporal patterns of phytoplankton fluorescence in the St. Lawrence River in relation to temperature and colored dissolved organic matter

Water quality data (in vivo chlorophyll-a and phycocyanin), colored dissolved organic matter and water temperature measured river water in a flow through chamber (from June 2014 to December 2019) placed in the Moses-Saunders hydropower dam located on the St. Lawrence River, between the State of New York (USA) and the Province of Ontario (Canada). The multi-sensor array installed in Unit 32 power turbine of the Moses-Saunders hydroelectric dam, along the New York shoreline of the St. Lawrence River (45°0.253’ N, 74°47.945’W) consists of a Turner Designs (Sunnyvale, CA) C6 multi-sensor platform equipped with Cyclops-7 sondes. The array measures numerous water quality variables at 1-2 minute intervals. The data support a study that describes a method by which changes in phytoplankton abundance in a large river system, as inferred by pigment (phycocyanin, chlorophyll a) fluorescence, can be related to environmental variables at several scales of observation (from daily to annual).

本数据集包含2014年6月至2019年12月期间，在位于美国纽约州与加拿大安大略省之间圣劳伦斯河（St. Lawrence River）的摩西-桑德斯水电站（Moses-Saunders hydropower dam）内的流通式测量室中获取的河流水质数据（活体叶绿素a及藻蓝蛋白）、有色溶解有机物及水温数据。该多传感器阵列安装于圣劳伦斯河纽约岸线侧的摩西-桑德斯水电站32号水轮机单元（坐标：北纬45°0.253′，西经74°47.945′），由美国加利福尼亚州森尼韦尔市特纳设计公司（Turner Designs）的C6多传感器平台及Cyclops-7探测仪组成。该阵列以1-2分钟为间隔，对多项水质变量进行测量。上述数据为一项研究提供支持，该研究提出了一种方法，可通过色素（藻蓝蛋白、叶绿素a）荧光信号推断大型河流系统中浮游植物丰度的变化，并将其与多时间尺度（日尺度至年尺度）的环境变量相关联。