INTAROS CTD mooring data from Young Sound, NE Greenland (2018-2021)

Greenland fjords are currently undergoing significant ecosystem change due to unprecedented melting of the Greenland Ice Sheet (GrIS).The rapidly increasing discharge of GrIS meltwater not only influences circulation patterns and stratification of the water column, but it also introduces large fluxes of inorganic sediments and organic material that are suspended in the water column. These inputs can limit light availability to primary producers. However, data is still limited for most Greenland fjord systems and there is an especial paucity of data showing yearly cycles. The Integrated Arctic Observation System (INTAROS) project funded by the European Commission’s H2020 programme allowed for the deployment of two moorings equipped with CTDs in the Young Sound fjord system––one in the inner fjord closest to GrIS meltwater discharge and another in the outer fjord region. This dataset reports the temperature and salinity recorded on these two moorings over 3 yearly cycles from August 2018 to August 2021. The moored CTDs were RBR Maestro³ and Concerto³ and were deployed at ~10 and ~20m in the inner and outer fjord respectively. Data were recorded at 2 Hz with measurements taken at 5min–1h intervals and raw data were processed using RBR Ruskin software. This dataset is made up of comma separated CSV files separated by mooring and year.

We would like to thank Carl Isaksen and MarineBasis, Greenland Ecosystem Monitoring Programme (https://g-e-m.dk) for assistance during deployment. The moorings were funded by the EU Horizon2020 funded project INTAROS (grant no. 727890).