Subglacial upwelling in winter/spring increases under-ice primary production

• Main Authors: Vonnahme, Tobias Reiner, Persson, Emma, Dietrich, Ulrike, Hejdukova, Eva, Dybwad, Christine, Elster, Josef, Chierici, Melissa, Gradinger, Rolf
• Format: Text
• Language: English
• Published: 2020
• Subjects: Arctic; Svalbard; Billefjorden; Climate change; glacier; ice algae; Phytoplankton; Sea ice; Tidewater
• Online Access: https://doi.org/10.5194/tc-2020-326; https://tc.copernicus.org/preprints/tc-2020-326/

Subglacial upwelling of nutrient rich bottom water is known to support high summer primary production in Arctic fjord systems. However, during the winter/spring season, the importance of subglacial upwelling has not been considered yet. We hypothesized that subglacial upwelling under sea ice is pres...