Correction to: Nature Geoscience https://doi.org/10.1038/s41561-019-0329-3, published online 25 March 2019.

In the version of this Article originally published, in the Methods section ‘Oceanographic observations and data assimilation’, the date when data were extracted from the International Council for the Exploration of the Sea Oceanography Data Portal was not specified and the role of the Greenland Institute of Natural Resources in collecting temperature data was not explicitly acknowledged. The first two sentences of the section have now been updated to read: ‘Ocean temperature data for the Disko Bay analysis were identified using a combination of in situ CTD measurements from the following sources: the International Council for the Exploration of the Sea Oceanography Data Portal (http://www.ices.dk/marine-data/data-portals/Pages/ocean.aspx), extracted 31 August 2018, and the World Ocean Database55. The Disko Bay temperature data from these sources was collected by the Greenland Institute of Natural Resources (GL).’

In addition, the following sentence was missing from the Acknowledgements and has now been added: ‘The authors thank the Greenland Institute of Natural Resources, Nuuk Greenland, for collection of hydrographic data in Disko Bay prior to 2015 as part of its Standard Hydrographic Coastal Monitoring Program.’