This data release includes sensor data collected from Conductivity Temperature Depth (CTD) casts during a field campaign to Kongsfjorden in July 2024 as part of the NERC funded SiCLING project (Silicon Cycling in Glaciated Environments), led by Dr. K. Hendry from the British Antarctic Survey. Thirteen CTD casts were carried out in a transect along the fjord. Funding: NERC Pushing the Frontiers grant SiCLING (NE/X014819/1).

Fieldwork was undertaken at the epishelf lake, Blaso, in Northeast Greenland between 19th July and 11th August 2017. CTD casts were made between 27/7/17 and 10/8/17. The CTD operated continuously and was deployed using a hand-spooled winch from a small boat at eight sites across the lake, with the objective of characterising water conditions at both calving fronts and in the three lake basins identified by the CHIRP survey. The CTDs were sampled between 31st July and 10th August 2017 and during this period there was persistent lake ice which prevented CTD measurements close to the eastern calving front. In contrast, most of the lake ice in the western basin had dispersed and melted by early August, allowing access to the western calving margin. Depth temperature and salinity observations are reported as metres (m), degrees centigrade (Deg C) and Practical Salinity Units (PSU). This project was funded by NERC Standard Grant NE/N011228/1

This data release includes sensor data collected from Conductivity Temperature Depth (CTD) casts during a field campaign to Ryder Bay in January 2025 as part of the NERC funded SiCLING project (Silicon Cycling in Glaciated Environments), led by Dr K. Hendry from the British Antarctic Survey. Four CTD casts were carried out within the Bay. This research aims to investigate the release of biologically important nutrients and trace elements from glacial sediments in polar coastal environments, and the biogeochemical impact of ongoing glacier retreat. Funding: NERC Pushing the Frontiers grant SiCLING (NE/X014819/1).

Datasets from a shallow water mooring deployed in the Southern Ocean, north of South Georgia in November 2004 during the marine cruise JR107 and recovered in January 2005 by the marine cruise JR116.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in November 2004 during the marine cruise JR107 and recovered in January 2005 by the marine cruise JR116.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in April 2006 during the marine cruise JR146. The mooring came up in August 2006 and was retrieved by the marine cruise JR159.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in January 2006 during the marine cruise JR140 and recovered in April 2006 by the marine cruise JR146.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in April 2005 during the marine cruise JR121 and recovered in December 2005 by the marine cruise JR140.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in March 2004 during the marine cruise JR100 and recovered in November 2004 by the marine cruise JR107.

Datasets from a deep water mooring deployed in the Southern Ocean, north of South Georgia in January 2005 during the marine cruise JR116 and recovered in April 2005 by the marine cruise JR121.