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Particulate Po-210 and Pb-210 data from US GEOTRACES East Pacific Zonal Transect from R/V Thomas G. Thompson TN303, from Peru to Tahiti, October to December 2013 (U.S. GEOTRACES EPZT project)
WSU Dataset

UID: 29

Author(s): Mark Baskaran

Description
This data was collected as part of an expedition to the Pacific Ocean and Atlantic Oceans to map and study the distribution of trace elements and isotopes as part of the International GEOTRACES Program (a program which aims to improve the understanding of biogeochemical cycles and large-scale distribution of trace elements and their isotopes in the marine environment). hundreds of samples were collected, processed, and analyzed along the two transects: EPZT in the Eastern Pacific between Peru and Tahiti, and GEOVIDE in the North Atlantic and Arctic between Portugal and Newfoundland, Canada. Along both transects, samples were collected at specific stations and the activity of the radionuclides was measured on both particle (small and large) and in the water column.
Timeframe
2013 - 2013
Subject Domain
Earth Science
Keywords
210Po and 210Pb
Biogeochemical cycles
Marine environment
Trace elements
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Associated Publications
Tang, Yi and Stewart G, Lam P, Rigaud S, and Church T. "The influence of particle concentration and composition on the fractionation of 210Po and 210Pb along the North Atlantic GEOTRACES transect GA03," Deep Sea Research I, v.128, 2017, p. 42. doi:https://doi.org/10.1016/j.dsr.2017.09.001
Equipment Used
CTD Sea-Bird SBE 911plus

The Sea-Bird SBE 911plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9plus and SBE 11plus is called a SBE 911plus. The SBE 9plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3plus and SBE 4). The SBE 9plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.).

Inductively Coupled Plasma Mass Spectrometer

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Mass Spectrometer

General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.

McLane Pump

McLane pumps sample large volumes of seawater at depth. They are attached to a wire and lowered to different depths in the ocean. As the water is pumped through the filter, particles suspended in the ocean are collected on the filters. The pumps are then retrieved and the contents of the filters are analyzed in a lab.

Dataset Format(s)
CSV, Matlab, netcdf, ODV