Dissolved trace metal (Fe, Ni, Cu, Zn, Cd, Pb) concentrations in the Indian and Pacific se

Dissolved trace metal (Fe, Ni, Cu, Zn, Cd, Pb) concentrations measured on seawater samples from the Indian and Pacific sectors of the Southern Ocean. Samples were collected to a maximum depth of 1000 meters during Legs 1 and 2 of the Antarctic Circumnavigation Expedition between 2016 and 2017. The data was authored by David J. Janssen from the University of Bern.

Use Cases

• Modeling trace metal biogeochemical cycles based on concentration data across ocean basins.
• Assessing environmental contamination or natural baselines based on metal concentration profiles.
• Studying spatial variability of micronutrients based on transects from subantarctic to Antarctic waters.
• Investigating the impact of glacial meltwater on ocean chemistry based on samples from polynyas and near the Antarctic Peninsula.

Strengths

• Samples were collected using a trace metal clean rosette system and filtered in a class 100 clean container, suggesting high-quality contamination control.
• Data covers a wide geographic range, including transects from Cape Town to Hobart and Hobart to Punta Arenas, and environments near islands, polynyas, and the Antarctic Peninsula.
• Depth profiles extend to 1000 meters, providing vertical resolution for water column studies.

Limitations

• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of Bern

Collection Method

Seawater samples collected with a trace metal clean rosette system, filtered, acidified, and stored for analysis.

Time Range

2016-2017

Geography

Indian and Pacific sectors of the Southern Ocean, including transects between Cape Town, Hobart, and Punta Arenas.