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).
Steps to reproduce
Data were collected using fluorometry and a thermocouple. Sensors were cleaned and recalibrated at approximately 2-3 week intervals.