Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa from R/V Sonne cruise SO245 (UltraPac, GPpr09) during Dec 2015 to Jan 2016

<p>This dataset contains depth profiles of seawater dissolved 232Th, 230Th, and 231Pa from R/V Sonne cruise SO245 (UltraPac, GPpr09).</p>

<p><strong>Dataset Notes:</strong><br />
Radionuclide concentrations are given as micro-Becquerel (10-6 Bq, µBq or micro-Bq) per kg seawater for 230Th and 231Pa, and pmol (10-12 mol) per kg seawater for 232Th. A Becquerel is the SI unit for radioactivity and is defined as 1 disintegration per second. These units are recommended by the GEOTRACES community.&nbsp;</p>

<p>\"Dissolved\"&nbsp;(D) here refers to that which passed through a 0.45 µm AcropakTM 500 filter capsule sampled from conventional Niskin bottles.&nbsp;</p>

<p>For dissolved, seawater was weighed directly in the laboratory to determine sample size, taking into account acid added at sea. Concentrations below detection are listed as \"bdl\". The abbreviation \"nd\"&nbsp;refers to no data available.&nbsp;</p>

<p>Parameter names are adopted based on a recommendation from the GEOTRACES community (<a href=\"http://www.egeotraces.org/Parameter_Naming_Conventions.html\" target=\"_blank\">http://www.egeotraces.org/Parameter_Naming_Conventions.html</a>).</p>

<p>This is data measured at Lamont-Doherty Earth Observatory of Columbia University (LDEO).&nbsp;&nbsp;</p>