Thorium-234 and Uranium-238 from Niskin bottle samples from R/V Weatherbird II WB0409, WB0413, WB0506, WB0508 cruises in the Sargasso Sea, 2004-2005 (EDDIES project)

<p>Total Thorium-234 and Uranium-238 from Niskin bottle samples taken on all EDDIES WB cruises</p>

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<b>dates:</b> 24 June 2004 to 25 August 2004 (20040624-20050825)
<b>location:</b> N: 31.928 S: 29.779 W: -69.410 E: -64.082
<b>project/cruise:</b> EDDIES/WB0409 2004 Transect 1 (EDT1 or E1)
EDDIES/WB0413 2004 Transect 2 (EDT2 or E2)
EDDIES/WB0506 2005 Transect 1 (EDT3 or E3)
EDDIES/WB0508 2005 Transect 2 (EDT4 or E4)
<b>platform:</b> R/V Weatherbird II

<b>Methodology:</b> see <a href=\"http://ocb.whoi.edu/EDDIES/PI-NOTES/Th234_bottle_methods.pdf\">PI-NOTES file</a>

also see Chapter 20: Sediment Traps in U.S. JGOFS BATS Method Manual
Version 4 (1997). Bermuda Atlantic Time-Series Study April 1997.
Anthony H. Knap, Anthony F. Michaels et al., 136 pp.
(link to <a
href=\"http://ocb.whoi.edu/EDDIES/PI-NOTES/BATS_methods_TOC.html\">BATS Method Manual version 4</a> local copy)
Methods also detailed in Buesseler et al., DSRII 2008:
Buesseler, K.O., C. Lamborg, P. Cai, R. Escoube, R. Johnson, S. Pike,
P. Masque, D. McGillicuddy and E. Verdeny (2008). Particle fluxes associated
with mesoscale eddies in the Sargasso Sea. Deep-Sea Research II, 55: 1426-1444.

<b>Change history:</b> YYMMDD
080703: received original data from K. Buesseler;
080728: data prepared by Nancy copley (WHOI);
090806: added to OCB database by Cyndy Chandler, OCB DMO;

<b>Analysis Note:</b> Thorium-234 data reported in units of dpm/l filtered,
with propagated error as % and as +/- error on a dpm/L basis;
Uranium-238 reported in units of dpm/L as calculated from salinity from
Chen et al., 1986 (*) and described in Buesseler et al., 2008
CTD locations shown in Figure 1 of Buesseler et al. DSDRII 2008
(*) Chen, J.H., Edwards, R.L., Wasserburg, G.J., 1986. 238U, 234U and 232Th
in seawater. Earth and Planetary Science Letters 80, 241-251.

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