Greenland Subglacial Discharge as a Driver of Hotspots of Increasing Coastal Chlorophyll Since the Early 2000s

Abstract

The Greenland Ice Sheet is losing mass at an increasing rate (The IMBIE Team, 2020). Ice is lost to the surrounding ocean in the form of submarine melting of marine-terminating glaciers, calving of icebergs, and the coastal release of runoff, the meltwater discharge from surface melting. Runoff constitutes a large proportion of ice sheet mass loss (Enderlin et al., 2014;Mouginot et al., 2019) and is known to influence a number of aspects of the marine environment that affect biota, including phytoplankton bloom timing and magnitude (