Hydrographic CTD data from 1975-2020 on the Scotian Shelf, Northwest Atlantic ...

• Main Authors: Lehmann, Nadine, Reed, Daniel C, Buchwald, Carolyn, Lavoie, Diane, Yeats, Philip A, Mei, Zhi-Ping, Wang, Zeliang, Johnson, Catherine
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: CTD; hydrography; Northwest Atlantic; Scotian Shelf; Cruise/expedition; Name; Data ID; DATE/TIME; LATITUDE; LONGITUDE; DEPTH, water; Location; Salinity; Temperature, water; Data source; Uniform resource locator/link to source data file; Compilation
• Online Access: https://dx.doi.org/10.1594/pangaea.963967; https://doi.pangaea.de/10.1594/PANGAEA.963967

Subsurface nutrients on the Scotian Shelf, an ocean region at the convergence of the subpolar and subtropical western boundary currents (i.e., Labrador Current and Gulf Stream), are chiefly modulated by upstream shelf and slope waters. Yet little is known about long-term fluctuations in the advective transport of nutrients to the shelf. To examine the relationships between subsurface nutrient concentrations and dominant slope water masses at the Scotian Shelf break, we assembled all available hydrographic data (temperature, salinity) and dissolved nutrient data (nitrate, phosphate, silicate) for the period 1975-2020. Hydrographic and nutrient data were extracted from the Fisheries and Oceans Canada (DFO) data archives MEDS (Marine Environmental Data Section Archive; DFO, 2023a) and BioChem (DFO, 2023b; Devine et al., 2014), respectively, and predominantly include data from current DFO programs (e.g., Atlantic Zone Monitoring Program (AZMP)) and legacy datasets. Hydrographic data consist of vertical water ...