Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs

• Main Authors: Rutgers van der Loeff, Michiel, Kipp, Lauren, Charette, Matthew A., Moore, Willard S., Black, Erin, Stimac, Ingrid, Charkin, Alexander, Bauch, Dorothea, Valk, Ole, Karcher, Michael, Krumpen, Thomas, Casacuberta, Núria, Smethie, William, Rember, Robert
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2018
• Subjects: radium‐228; thorium‐228; Arctic Ocean; transpolar drift; GEOTRACES; Amundsen Basin; Arctic; Canada; Makarov Basin; amundsen basin; canada basin; Central Arctic; makarov basin
• Online Access: https://hdl.handle.net/20.500.11850/284551; https://doi.org/10.3929/ethz-b-000284551

The first full transarctic section of 228Ra in surface waters measured during GEOTRACES cruises PS94 and HLY1502 (2015) shows a consistent distribution with maximum activities in the transpolar drift. Activities in the central Arctic have increased from 2007 through 2011 to 2015. The increased 228Ra...