In the field with MarineGreen – University of Copenhagen

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24 October 2018

In the field with MarineGreen

FIELDWORK

This summer MarineGreen conducted fieldwork in the Nuup Kangerlua (Nuuk Fiord) lead by Assistant Professor Nicholas Rose. MarineGreen is a Greenland Perspective project that investigates application of glacial rock flour in marine environments

This summer the MarineGreen project conducted fieldwork for three weeks in the Nuup Kangerlua (Nuuk Fiord). A total of 9 people were divided into two teams; a marine team and a land team.

The marine team studied effects of suspended glacial sediments input on chemical oceanography, focusing on the sediment plume that originates at the Ilulialik location. The marine team measured particle size distributions in the water column and collected samples for trace element analysis and making continuous measurements of current flow.
The land team was based at the Maalutu location where glacial rock flour is well exposed in mud cliffs. They produced a groundwater model and measured the chemistry of surface and groundwaters. The purpose of these measurements is to understand how the highly reactive rock flour is affecting water chemistry and carbon dioxide drawdown.

The wider aim of the three-year MarineGreen project is to investigate the utilization of Greenlandic glacial rock flour in marine remediation applications. The focus is on quantifying processes where reactions with suspended glacially derived particles are the main drivers, and using the results to help predict the behaviour of rock flour in the wider ocean context.
Simultaneously the results are relevant to processes at the base of the food web in the Greenland coastal waters, which are changing due to increases in meltwater fluxes and decreases in sea-ice. These factors can potentially have a major impact on the future of the Greenland fishing economy. 

The MarineGreen project is funded by the Novo Nordisk Foundation.