P16N_2006_trace_metal_CTD

This dataset consists of water column measurements collected from a trace metal CTD during the CLIVAR/GO‑SHIP repeat hydrography section P16N from 13 February to 29 March 2006, a meridional transect in the North Pacific from roughly 56°N to 16°S. Station metadata, hydrographic data, and cruise documentation are provided by the CLIVAR & Carbon Hydrographic Data Office (CCHDO) under expocode 325020060213. A trace-metal clean rosette was used to collect seawater from the upper 1000 m of the water column and then subsampled in a clean van for salinity, nutrients, and dissolved trace metal samples. Filtered (<0.4 µm) samples were collected for shipboard analysis by flow injection methods for dissolved Fe concentrations and shore-based ICPMS analysis for dissolved Mn, Co, Ni, Cu, Zn, Cd, and Pb at Florida State University. The timestamp is in UTC. For a full description of sampling protocols and analytical methods see: J.A. Resing, C.I. Measures, 1994. Fluorometric determination of Al in seawater by flow injection analysis with in-line preconcentration, Anal. Chem., 66, 4105-4111.C.I. Measures, J. Yuan, J.A. Resing, 1995. Determination of iron in seawater by flow injection analysis using in-line preconcentration and spectrophotometric detection, Limnol. Oceanogr. Methods, 50, 3-12.C.I. Measures, W.M. Landing, M.T. Brownand, C.S. Buck, 2008. A commercially available rosette system for trace metal-clean sampling, Limnol. Oceanogr. Methods, 6, 384-394.A. Milne, W. Landing, M. Bizimis, P. Morton, 2010. Determination of Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb in seawater using high resolution magnetic sector inductively coupled mass spectrometry (HR-ICP-MS), Anal. Chim. Acta, 665, 200–207. We thank the captain and crew of R/V Thomas G. Thompson and chief scientists Richard Feely and Christopher Sabine. This research was funded by NSF grants OCE-0223378 to William M. Landing (Florida State University) and OCE-0649584 to Christopher I. Measures (University of Hawaii).