Cruise inventory

RV Thomas G. Thompson TN303 (EPZT, GP16)

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Thomas G. Thompson (3250)
Cruise identifierTN303 (EPZT, GP16)
Cruise period2013-10-25 — 2013-12-20
StatusCompleted
Port of departureBahia De Manta, Ecuador
Port of returnPapeete, French Polynesia
PurposeResearch
ObjectivesUS GEOTRACES East Pacific Zonal Transect (EPZT), a survey consisting of rosette/CTD casts, McLane in situ pump and 7Be pump casts and a variety of underway measurements. A sea-going science team gathered from 15 oceanographic institutions participated.

Two types of rosette/SBE9plus CTD casts (ODF/30L-Niskin and GT-C/12L-GoFlo) were made at 36 station locations. Deep ODF/30L-Niskin casts included a device suspended 20 meters below the rosette, designed to either take a core sample or pick up particulates from the sea floor. Shallow and deep McLane pump profiles were done at all Full stations, with an additional mid-water profile at Super Stations. An SBE19plus CTD was attached to the end of the McLane wire on all but seven deep pump casts, when it was attached to the ODF rosette instead. Water was pumped and filtered for Beryllium-7 analysis on some stations. Underway samples were also collected for multiple programs, and five ARGO floats were deployed during the eastern half of the cruise for the University of Washington.
Chief scientistChristopher R German (Woods Hole Oceanographic Institution - Geology and Geophysics Department), Gregory A Cutter (Old Dominion University Department of Ocean, Earth and Atmospheric Sciences), James Moffett (University of Southern California, USA)
ProjectGEOTRACES -Trace elements and their isotopes in the water column
Cruise reportRV Thomas G. Thompson TN303 (EPZT, GP16) cruise report thomasgthompson_tn303.pdf — access key 'C' (1.38 MB) 
Ocean/sea areas 
GeneralSouth Pacific Ocean
SpecificEastern tropical Pacific
Track chartsRV Thomas G. Thompson TN303 (EPZT, GP16) cruise track — thomasgthompson_tn303trk.pdf (0.32 MB) 
Data held at BODC 
Discrete samples 
79  All plastic clean surface pumped supplyDissolved metal concentrations in the water column
Particulate metal concentrations in the water column
Radioactivity in the water column
Stable isotope enrichment in the water column
Particulate total and organic carbon concentrations in the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Dissolved trace metalloid and inorganic selenium concentrations in water bodies
Metadata parameters
Particulate total and organic phosphorus concentrations in the water column
Silicate concentration parameters in the water column
Salinity of the water column
Concentration of inorganic halogens in water bodies
Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
113  CTD frame plus rosette samplerDissolved metal concentrations in the water column
Particulate metal concentrations in the water column
Radioactivity in the water column
Stable isotope enrichment in the water column
Particulate total and organic carbon concentrations in the water column
Dissolved noble gas concentration parameters in the water column
Dissolved trace metalloid and inorganic selenium concentrations in water bodies
Metadata parameters
Particulate total and organic phosphorus concentrations in the water column
Silicate concentration parameters in the water column
Salinity of the water column
Concentration of inorganic halogens in water bodies
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
13  Sample taken from ship's non-toxic supplyRadioactivity in the water column
Salinity of the water column
44  Stand-alone pumpsParticulate trace metalloid and inorganic selenium concentrations in water bodies
Concentration of inorganic sulphur species in the water column
Radioactivity in the water column
Silicate concentration parameters in the water column
Salinity of the water column
Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
18  Unknown water sampling deviceRadioactivity in the water column
72  Dissolved metal concentrations in the water column
Particulate metal concentrations in the water column
Radioactivity in the water column
Stable isotope enrichment in the water column
Particulate total and organic carbon concentrations in the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Dissolved noble gas concentration parameters in the water column
Dissolved trace metalloid and inorganic selenium concentrations in water bodies
Metadata parameters
Particulate total and organic phosphorus concentrations in the water column
Concentration of inorganic halogens in water bodies