Deployment: KN204-01

2011-11-06 - 2011-12-11 Subtropical northern Atlantic Ocean Platform:R/V Knorr (vessel)

Description

The US GEOTRACES North Atlantic cruise aboard the R/V Knorr completed the section between Lisbon and Woods Hole that began in October 2010 but was rescheduled for November-December 2011. The R/V Knorr made a brief stop in Bermuda to exchange samples and personnel before continuing across the basin. Scientists disembarked in Praia, Cape Verde, on 11 December. The cruise was identified as KN204-01A (first part before Bermuda) and KN204-01B (after the Bermuda stop). However, the official deployment name for this cruise is KN204-01 and includes both part A and B.

Science activities included: ODF 30 liter rosette CTD casts, ODU Trace metal rosette CTD casts, McLane particulate pump casts, underway sampling with towed fish and sampling from the shipboard "uncontaminated" flow-through system.

Full depth stations are shown in the accompanying figure (see below). Additional stations to sample for selected trace metals to a depth of 1000 m are not shown. Standard stations are shown in red (as are the ports) and "super" stations, with extra casts to provide large-volume samples for selected parameters, are shown in green.

GEOTRACES Atlantic 2011 Station Plan

Station spacing is concentrated along the western margin to evaluate the transport of trace elements and isotopes by western boundary currents. Stations across the gyre will allow scientists to examine trace element supply by Saharan dust, while also contrasting trace element and isotope distributions in the oligotrophic gyre with conditions near biologically productive ocean margins, both in the west, to be sampled now, and within the eastern boundary upwelling system off Mauritania, sampled last year.

Funding: The cruise was funded by NSF OCE awards 0926204, 0926433 and 0926659.

Additional cruise information is available from the Rolling Deck to Repository (R2R): https://www.rvdata.us/search/cruise/KN204-01

Other Relevant Links:

ADCP data are available from the Currents ADCP group at the University of Hawaii at the links below:
KN204-01A (part 1 of 2011 cruise; Woods Hole, MA to Bermuda)
KN204-01B (part 2 of 2011 cruise; Bermuda to Cape Verde)

DatasetLatest Version DateCurrent State
CTD and pump cast events associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2012-10-10Final no updates expected
Bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2013-02-13Final with updates expected
Bottle sampling comments associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2012-06-05Final no updates expected
GTC CTD cast sheets associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2025-02-25Final no updates expected
ODF CTD cast sheets associated with the US GEOTRACES North Atlantic Transect from the from R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2025-02-25Final no updates expected
GTC CTD sample logs associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2025-02-25Final no updates expected
ODF CTD sample logs associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N Atlantic during 2011 (U.S. GEOTRACES NAT project)2025-02-25Final no updates expected
Bottle data along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2013-01-30Final no updates expected
Concentrations of CFC-11, CFC-12, CFC-113 and SF6 in seawater from R/V Knorr KN199-04 (GT10), KN204-01 (GT11) in the subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-06-16Final no updates expected
Cruise report associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the Subtropical northern Atlantic Ocean from 2011-2011 (U.S. GEOTRACES NAT project)2011-12-11Final no updates expected
Cruise tracks along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2013-01-29Final no updates expected
GTC one meter-averaged downcast CTD profiles along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)2013-01-30Final no updates expected
ODF one meter-averaged downcast CTD profiles along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic from 2010 (U.S. GEOTRACES NAT project)2013-02-14Final no updates expected
Pump sample logs along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N Atlantic during 2011 (U.S. GEOTRACES NAT project)2025-02-25Final no updates expected
Shipboard flow injection analyis (FIA) of dissolved Al, Fe, and Mn from R/V Knorr cruise KN204-01 (GA03) in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-10-14Final no updates expected
Helium, Neon, and Helium-isotope concentrations from R/V Knorr cruises KN199-04 (GT10) and KN204-01 (GT11) in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-11-26Final no updates expected
Tritium concentration from R/V Knorr cruises KN199-04 (GT10) and KN204-01 (GT11) in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2016-03-10Final no updates expected
Concentrations of dissolved iron and dissolved iron(II) from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-11-05Final no updates expected
Dissolved Ga and Ba from GEOTRACES Rosette bottles R/V Knorr cruises KN199-04 and KN204-01 (GA03) in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2016-08-30Final no updates expected
Inorganic Carbon along US GEOTRACES North Atlantic Transect from R/V Knorr KN199-04, KN204-01 cruises in the subtropical N. Atlantic from 2010-2011 (U.S. GEOTRACES NAT project)2012-12-31Final no updates expected
Surface transects for arsenic speciation, antimony speciation, and alkaline phosphatase activity from R/V Knorr cruise KN204-01 in the Subtropical North Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-01-03Final no updates expected
Dissolved Ga and Ba from surface tows from R/V Knorr cruises KN199-04, KN199-05, and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2016-08-30Final no updates expected
Seawater Nd isotopes and concentrations from the US-GEOTRACES North Atlantic zonal transect (NAZT), 2010 and 2011 on cruises KN199-04 and KN204-01, analyzed by USC2019-11-04Final no updates expected
Particulate Thorium-234 from in situ pumps from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-03-06Final no updates expected
Water-column total Thorium-234 and Uranium-238 from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-03-25Final no updates expected
Depth profiles for arsenic and antimony speciation and alkaline phosphatase activity from R/V Knorr cruise KN204-01 in the Subtropical North Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-03-01Final no updates expected
Surface nanomolar Phosphate, Nitrate, and Nitrite concentrations from R/V Knorr cruise KN204-01 in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-02-20Final no updates expected
Profiles of nanomolar Phosphate, Nitrate, and Nitrite concentrations from R/V Knorr cruise KN204-01 in the Subtropical North Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-03-14Final no updates expected
Dissolved Fe, Zn and Cd concentrations and isotope ratios from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2016-11-30Final no updates expected
Trace element concentrations in particles from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-03-10Final no updates expected
Scientific sampling event log from R/V Knorr cruise KN204-01 in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-01-25Final no updates expected
Trace element profiles from GT-10 and GT-11 from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2015-02-04Final no updates expected
Profiles of dissolved iron-binding ligands and their conditional stability constants from R/V Knorr KN199-04, KN204-01, subtropical North Atlantic Ocean, 2010-2011 (U.S. GEOTRACES NAT project)2016-12-08Final no updates expected
Total dissolved copper, estimates of free Cu2+, ligand concentrations, and conditional stability constants from R/V Knorr KN199-04, KN204-01, subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-10-22Final no updates expected
Radium and Thorium isotopes sampled by in situ pump on R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2015-01-20Final no updates expected
Depth profiles of dissolved, small and large particulate 232Th, 230Th, and 231Pa from R/V Knorr KN199-04, KN204-01, subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2016-05-16Final no updates expected
Soluble Fe passed through 0.2 um Anopore filter from R/V Knorr cruise KN204-01 in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project)2013-03-01Final no updates expected
Dissolved lead (Pb), less than 0.2 um from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-06-21Final no updates expected
SAFe and GEOTRACES trace element references from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-01-11Final no updates expected
Concentration of atmospheric aerosol total mercury (Hg) from R/V Knorr cruises KN199-04 and KN204-01 (GA03) in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2012-12-31Final no updates expected
Trace metal and major anion concentrations in unfiltered rainwater from R/V Knorr cruises KN199-04 and KN204-01 (GA03) in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-09-16Final with updates expected
Particulate total mercury and monomethylmercury - US GEOTRACES NATZ from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-03-05Final no updates expected
Mercury speciation across the US GEOTRACES North Atlantic Zonal Section from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2017-04-11Final no updates expected
Dissolved Iron, Manganese, Zinc, Cadmium and Copper concentrations from R/V Knorr KN199-04, KN204-01 in the subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2012-12-27Final no updates expected
Trace metal concentrations in filtered rainwater from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-09-16Final with updates expected
Total aerosol trace metal concentrations from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-09-16Final with updates expected
Total dissolved Cobalt and labile Cobalt concentrations from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-04-26Final no updates expected
Depth profiles of suspended dissolved and particulate 232Th, 230Th, and 231Pa from R/V Knorr KN199-04, KN204-01, subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-08-08Final no updates expected
Size-fractionated major and minor particle composition and concentration from R/V Knorr KN199-04 & KN204-01 (GA03) in the subtropical North Atlantic Ocean from 2010-2011 2018-08-06Final no updates expected
delta 13C measurement of dissolved inorganic carbon (DIC) from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-06-17Final no updates expected
delta 15N of nitrate from R/V Knorr cruise KN199-04 & KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-04-29Final no updates expected
Dissolved 210Po and 210Pb along US GEOTRACES North Atlantic Transect from R/V Knorr KN199-04, KN204-01 cruises in the Subtropical northern Atlantic from 2010-2011 (U.S. GEOTRACES NAT project)2013-11-05Final no updates expected
Particulate 210Po and 210Pb from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-06-14Final no updates expected
Nitrogen and Oxygen isotope ratios of dissolved nitrate from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2018-12-26Final no updates expected
Particle beam attenuation coefficient (Cp) data from GEOTRACES carousel from R/V Knorr KN199-04, KN204-01 in the subtropical N. Atlantic Ocean, 2010-2011 (U.S. GEOTRACES NAT project)2013-11-05Final no updates expected
Particle beam attenuation coefficient (Cp) data from ODF (Ocean Data Facility) rosette, R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean, 2010-2011 (U.S. GEOTRACES NAT project)2013-11-05Final no updates expected
North African mineral dust composition from R/V Knorr cruises KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2014-09-17Final no updates expected
Profiles of stable isotopes of silicon (Si) in silicic acid (Si(OH)4) from R/V Knorr cruises KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-11-04Final no updates expected
Particulate Fe isotopes (d56Fe, labile d56Fe, labile[Fe], [Cd], [Ba], and [P]) from R/V Knorr cruises KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2013-11-08Final no updates expected
DI water soluble aerosol trace elements from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)2015-02-27Final no updates expected
Cellular elemental content of individual phytoplankton cells collected during US GEOTRACES North Atlantic Transect cruises in the Subtropical western and eastern North Atlantic Ocean during Oct and Nov, 2010 and Nov. 20112015-02-17Final no updates expected
Isotope ratios of Pb passing through a 0.2 um Acropak capsule filter from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean in 2010 and 2011 (U.S. GEOTRACES NAT project)2016-11-21Final no updates expected
Dissolved rare earth element (REE) concentrations from the GEOTRACES North Atlantic Transect (Section GA03) collected on the R/V Knorr cruises KN199-04, KN199-05, and KN204-01 during 2010 and 20112021-07-28Final no updates expected
Organic carbon and water soluble organic carbon atmospheric loadings from aerosol samples from R/V Knorr GEOTRACES cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean in 2010 and 20112015-12-29Final no updates expected
m/z and peak intensity data for the molecular formulas assigned to aerosol water soluble organic matter samples run by ESI FTICR MS from R/V Knorr GEOTRACES cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean in 2010 and 20112015-12-29Final no updates expected
Spectral magnitude data for 0.0008 ppm bands from aerosol water soluble organic matter 1H NMR spectra from R/V Knorr GEOTRACES cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean in 2010 and 20112015-12-29Final no updates expected
Beryllium-7 in aerosol from samples collected on R/V Knorr KN204-01 in the Subtropical northern Atlantic Ocean from November to December 20112016-12-22Final no updates expected
Estimation of the parameters of a simple model of thorium and particle cycling in the ocean water column, based on a fit to radionuclide and particle data from the US GEOTRACES North Atlantic Section (GA03)2018-02-26Final no updates expected
A compilation of dissolved noble gas and N2/Ar ratio measurements collected from 1999-2016 in locations spanning the globe2022-01-17Final no updates expected
Seawater Nd isotopes and concentrations from the US-GEOTRACES North Atlantic zonal transect (NAZT), 2010 and 2011 on cruises KN199-04 and KN204-01, analyzed at LDEO2019-11-04Final no updates expected
Seawater Nd isotopes and concentrations from the US-GEOTRACES North Atlantic zonal transect (NAZT), 2010 and 2011 on cruises KN199-04 and KN204-01, analyzed by UHawaii2019-11-04Final no updates expected
The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-20112020-05-06Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-20112020-05-07Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-20112020-05-07Final no updates expected
Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 2020-05-07Final no updates expected

Deployment Report

People

Chief Scientist: Edward A. Boyle
Massachusetts Institute of Technology

Co-Chief Scientist: Gregory A. Cutter
Old Dominion University

Synonyms

• GA03

• GT11

• KN204-01A

• KN204-01B

• USGT-NAT-2011

• USGNAZT

• GNAT

• 316N20111106

• KN204-1

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Funded by the U.S. National Science Foundation