| Summary: | This dataset contains measured ratios of dissolved (<0.2 µm) Pb isotopic composition of pooled samples from ultra-clean CTD/Water sampler-system during GEOTRACES expedition GN05 (Polarstern PS100, ARK-XXX/2, 18 July - 9 September 2016). Samples were collected strictly following GEOTRACES guidelines (Cutter et al., 2017; https://www.geotraces.org) and were pooled based on Rudels et al., 2005 (doi:10.1016/j.jmarsys.2004.06.008) according to water mass properties in Fram Strait. Samples were analysed via Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) as described in Olivelli et al., 2023 (doi:10.1016/j.marpolbul.2023.114798). The uncertainty is reported as two standard deviation (2σ, STD) to replicate measurements via MC-ICP-MS. Data quality was assessed through standard reference material NST 981.
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