http://lod.bco-dmo.org/id/dataset/767658
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2019-05-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved and particulate trace elements collected on cruise RR1604 (GO-SHIP transect IO9N) in the Eastern Indian Ocean from March to April 2016
2019-05-13
publication
2019-05-13
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2022-07-12
publication
https://doi.org/10.26008/1912/bco-dmo.767658.1
Benjamin Twining
Bigelow Laboratory for Ocean Sciences
principalInvestigator
Michael W. Lomas
Bigelow Laboratory for Ocean Sciences
principalInvestigator
Adam Martiny
University of California-Irvine
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Twining, B., Lomas, M. W., Martiny, A. (2022) Dissolved and particulate trace elements collected on cruise RR1604 (GO-SHIP transect IO9N) in the Eastern Indian Ocean from March to April 2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-05-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.767658.1 [access date]
Dissolved and particulate trace elements collected on cruise RR1604 (GO-SHIP transect IO9N) in the Eastern Indian Ocean from March to April 2016 Dataset Description: <p>Dissolved and&nbsp;particulate trace elements collected on cruise RR1604 (GO-SHIP transect IO9N) in the Eastern Indian Ocean from March to April 2016.</p> Methods and Sampling: <p>Samples were collected from 5 L Teflon-coated Niskin-X bottles hung on non-metal line, and clean techniques were followed throughout (Bruland et al., 1979). Niskin-X bottles were transferred to a clean lab immediately after retrieval. At most stations a single sample was collected from 20 m. Four-depth profiles extending to 200 m were collected at 6 stations along the transect.</p>
<p>For dissolved metal analysis, 300 mL of seawater was filtered through acid-washed 47 mm 0.4 μm polycarbonate filters into 250 mL LDPE bottles which were acid-cleaned following GEOTRACES protocols (Cutter et al., 2010). A vacuum filtration apparatus was used, with all parts in contact with the sample composed of acid-washed PFA. The assembly was rinsed with 3 aliquots of sample prior to sample collection. Samples were acidified with Optima HCl to 0.024 M, double bagged, and stored for analysis on shore.</p>
<p>Dissolved samples were analyzed using an ESI seaFAST SP2 coupled to a Perkin Elmer Nexion 350D ICP-MS. Sample aliquots were transferred to 30 mL LDPE bottles. Approximately 8 mL of sample was taken up to rinse and fill a 6 mL preconcentration loop. Samples were buffered in-line with resin-cleaned 4 M ammonium acetate buffer-adjusted to pH = 6.0 ± 0.1 and passed through an ESI pre-concentration column with a 200 μL resin bed volume. The final concentration of the buffer in the samples was 0.88 M. Metals were eluted off the column with 200 μL of 1.6 M Optima-grade HNO₃. Eluted metals passed through a PFA nebulizer, quartz spray chamber, and nickel cones on their way to an ammonia-filled dynamic reaction cell (0.55 mL/min flow).</p>
<p>Quantification was achieved by standard additions automated by the seaFAST system. A standard addition solution of 6.9 nM Fe, 46 nM Mn, 4.5 nM Zn, and 1.1 nM Pb was made in 0.024 M HCl. Concentrations in this solution were quantified using an external curve. Additions were introduced as the sample filled the preconcentration loop. The volume introduced by standard additions was kept constant, with 0.024 M Optima HCl making up the difference for samples with no additions. Each sample was spiked with 2 additions averaging roughly 100% and 200% of the sample concentration.</p>
<p>Approximately 4L of water from Niskin bottles was filtered for particulate metals. The bottles were pressurized to approximately 5 psi with 0.2 μm filtered air and seawater passed through 25 mm 0.4 μm Supor filter membranes. The membranes were housed in Swinnex polypropylene filter holders and attached to the Niskin-X bottles with Teflon tubing and polycarbonate fittings. The membrane was transferred to an acid washed petri-slide, double bagged, and kept frozen at -20°C for analysis on shore.</p>
<p>Labile and total particulate concentrations were analyzed through sequential digestion of the Supor membranes following protocol of Rauschenberg and Twining (2015). Membranes were first leached using an acetic acid-hydroxylamine solution (Berger et al., 2008) then transferred to a PFA vial and digested with a 4M HCl/4M HNO3/4M HF mixture (Ohnemus et al., 2014). Reference materials and process blanks – filters that had 2 L of 0.2 μm filtered seawater passed through them –were sequentially digested alongside the samples.</p>
<p>Digests were analyzed using a Thermo Element2 HR-ICP-MS equipped with a quartz nebulizer, cyclonic spray chamber, and nickel cones. Cd was analyzed in low resolution while all other elements were analyzed in medium resolution. In-115 was used as a drift monitor, and quantification was performed using an external curve.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1559021 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1559021
completed
Benjamin Twining
Bigelow Laboratory for Ocean Sciences
207-315-2567
60 Bigelow Drive PO Box 380
East Boothbay
ME
04544-0380
USA
btwining@bigelow.org
pointOfContact
Michael W. Lomas
Bigelow Laboratory for Ocean Sciences
207-315-2567 ext 311
60 Bigelow Drive PO Box 380
East Boothbay
ME
04544
United States
mlomas@bigelow.org
pointOfContact
Adam Martiny
University of California-Irvine
949-824-9713
Earth System Science & Ecology and Evolutionary Biology 3208 Croul Hall
Irvine
CA
92697
USA
amartiny@uci.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Station
Latitude
Longitude
Depth
dFe
dFe_flag
dMn
dMn_flag
dZn
dZn_flag
dPb
dPb_flag
Cd_Lab
Cd_Lab_flag
Mo_Lab
Mo_Lab_flag
Pb_Lab
Pb_Lab_flag
Ba_Lab
Ba_Lab_flag
Al_Lab
Al_Lab_flag
Mn_Lab
Mn_Lab_flag
Fe_Lab
Fe_Lab_flag
Co_Lab
Co_Lab_flag
Cu_Lab
Cu_Lab_flag
Ni_Lab
Ni_Lab_flag
P_Lab
P_Lab_flag
Ti_Lab
Ti_Lab_flag
V_Lab
V_Lab_flag
Zn_Lab
Zn_Lab_flag
Cd_Tot
Cd_Tot_flag
Mo_Tot
Mo_Tot_Flag
Pb_Tot
Pb_Tot_flag
Ba_Tot
Ba_Tot_flag
Al_Tot
Al_Tot_flag
Mn_Tot
Mn_Tot_flag
Fe_Tot
Fe_Tot_flag
Co_Tot
Co_Tot_flag
Cu_Tot
Cu_Tot_flag
Ni_Tot
Ni_Tot_flag
P_Tot
P_Tot_flag
Ti_Tot
Ti_Tot_flag
V_Tot
V_Tot_flag
Zn_Tot
Zn_Tot_flag
Perkin Elmer Nexion 350D ICP-MS
Thermo Element2 HR-ICP-MS
Teflon-coated Niskin-X bottles
theme
None, User defined
station
latitude
longitude
depth
Iron
Manganese
Zinc
Lead
No BCO-DMO term
Molybdenum
Barium
Aluminum
Copper
Phosphorus
Titanium
Vanadium
featureType
BCO-DMO Standard Parameters
Inductively Coupled Plasma Mass Spectrometer
Inductively Coupled Plasma Mass Spectrometer
Niskin bottle
instrument
BCO-DMO Standard Instruments
RR1604
service
Deployment Activity
Hydrographic line IO9, Indian Ocean
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Collaborative Research: Regional variation of phytoplankton diversity and biogeochemical functioning in the subtropical Indian Ocean
https://osprey.bco-dmo.org/project/628972
Collaborative Research: Regional variation of phytoplankton diversity and biogeochemical functioning in the subtropical Indian Ocean
<p><em>Description from NSF award abstract:</em><br />
The Indian Ocean accounts for nearly a fifth of global ocean photosynthesis and is likely a key component in global ocean nutrient and carbon cycles. However, the Indian Ocean may be the least studied major marine body on the planet. Our limited understanding suggests extensive variations in physical and chemical environmental conditions, but how this variation influences biodiversity, nutrient stress, and more broadly regional differences in the functioning of phytoplankton is unknown. To help address these gaps, the investigators will conduct a study by joining an already-funded major research cruise to this region. It will cover a northern region with some of the highest temperatures recorded in open ocean waters, an area around 10°S of predicted (but not tested in situ) iron stress, and a southern subtropical gyre with unique nitrogen to phosphorous(or N:P) ratios. The focus of this project is to quantify and synthesize the interconnectedness of environmental conditions, phytoplankton diversity and genome content, and nutrient biogeochemistry, with the goal of understanding how these may lead to unique biogeochemical regions in Indian Ocean. The research will have broader impacts on many levels. First, it will increase public awareness of the role of phytoplankton on ocean functioning, climate, and people's lives through a new partnership with the Aquarium of the Pacific (AOP), which is the fourth most-attended aquarium in the nation. Secondly, the project will train a postdoctoral scholar as well as a graduate and undergraduate students. Third, the research will dramatically increase our basic knowledge ocean biogeochemistry and in many cases will be the first measurements of their kind made in the Indian Ocean.</p>
<p>This project will address two major questions: How do environmental conditions, phytoplankton diversity, phytoplankton physiology, and biogeochemistry vary across the central Indian Ocean? Are there distinct biogeochemical regimes in the central IO? The researchers hypothesize that environmental conditions, including the relative availability of nitrogen (N) and iron (Fe), lead to three distinct phytoplankton communities and biogeochemical regimes. They will employ a series of advanced analytical tools including high sensitivity measurements of dissolved and particulate nutrients (nitrogen, phosphorus, and iron), genomics, bioassays to test for nutrient stress, and cell-sorting of specific taxa followed by measures of nutrient content and uptake. A focus of this project is to quantify and synthesize the interconnectedness of environmental conditions, phytoplankton diversity and genome content, and nutrient biogeochemistry, and how these lead to unique biogeochemical regions in Indian Ocean. This extensive set of observations can ultimately be linked to ocean models and satellite data to provide a comprehensive view of regional differences in chemistry, biodiversity and phytoplankton biogeochemical functioning in the Indian Ocean.</p>
IO Phytoplankton
largerWorkCitation
project
eng; USA
oceans
Hydrographic line IO9, Indian Ocean
87.07
95
-28.31
17
2016-03-21
2016-04-28
GO-SHIP IO9N transect: 20S 95E to 20N 95E
0
BCO-DMO catalogue of parameters from Dissolved and particulate trace elements collected on cruise RR1604 (GO-SHIP transect IO9N) in the Eastern Indian Ocean from March to April 2016
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/767738.rdf
Name: Station
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/767739.rdf
Name: Latitude
Units: degrees N
Description: <p>station latitude; positive values = North</p>
http://lod.bco-dmo.org/id/dataset-parameter/767740.rdf
Name: Longitude
Units: degrees E
Description: <p>station longitude; positive values = East</p>
http://lod.bco-dmo.org/id/dataset-parameter/767741.rdf
Name: Depth
Units: meters
Description: <p>sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/767742.rdf
Name: dFe
Units: nanomolar (nM)
Description: <p>dissolved iron</p>
http://lod.bco-dmo.org/id/dataset-parameter/767743.rdf
Name: dFe_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767744.rdf
Name: dMn
Units: nM
Description: <p>dissolved manganese</p>
http://lod.bco-dmo.org/id/dataset-parameter/767745.rdf
Name: dMn_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767746.rdf
Name: dZn
Units: nM
Description: <p>dissolved zinc</p>
http://lod.bco-dmo.org/id/dataset-parameter/767747.rdf
Name: dZn_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767748.rdf
Name: dPb
Units: nM
Description: <p>dissolved lead</p>
http://lod.bco-dmo.org/id/dataset-parameter/767749.rdf
Name: dPb_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767750.rdf
Name: Cd_Lab
Units: pM
Description: <p>labile particulate cadmium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767751.rdf
Name: Cd_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767752.rdf
Name: Mo_Lab
Units: pM
Description: <p>labile particulate molybdenum</p>
http://lod.bco-dmo.org/id/dataset-parameter/767753.rdf
Name: Mo_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767754.rdf
Name: Pb_Lab
Units: pM
Description: <p>labile particulate lead</p>
http://lod.bco-dmo.org/id/dataset-parameter/767755.rdf
Name: Pb_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767756.rdf
Name: Ba_Lab
Units: pM
Description: <p>labile particulate barium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767757.rdf
Name: Ba_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767758.rdf
Name: Al_Lab
Units: pM
Description: <p>labile particulate aluminum</p>
http://lod.bco-dmo.org/id/dataset-parameter/767759.rdf
Name: Al_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767760.rdf
Name: Mn_Lab
Units: pM
Description: <p>labile particulate manganese</p>
http://lod.bco-dmo.org/id/dataset-parameter/767761.rdf
Name: Mn_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767762.rdf
Name: Fe_Lab
Units: pM
Description: <p>labile particulate iron</p>
http://lod.bco-dmo.org/id/dataset-parameter/767763.rdf
Name: Fe_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767764.rdf
Name: Co_Lab
Units: pM
Description: <p>labile particulate cobalt</p>
http://lod.bco-dmo.org/id/dataset-parameter/767765.rdf
Name: Co_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767766.rdf
Name: Cu_Lab
Units: pM
Description: <p>labile particulate copper</p>
http://lod.bco-dmo.org/id/dataset-parameter/767767.rdf
Name: Cu_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767768.rdf
Name: Ni_Lab
Units: pM
Description: <p>labile particulate nickel</p>
http://lod.bco-dmo.org/id/dataset-parameter/767769.rdf
Name: Ni_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767770.rdf
Name: P_Lab
Units: nM
Description: <p>labile particulate phosphorus</p>
http://lod.bco-dmo.org/id/dataset-parameter/767771.rdf
Name: P_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767772.rdf
Name: Ti_Lab
Units: pM
Description: <p>labile particulate titanium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767773.rdf
Name: Ti_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767774.rdf
Name: V_Lab
Units: pM
Description: <p>labile particulate vanadium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767775.rdf
Name: V_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767776.rdf
Name: Zn_Lab
Units: pM
Description: <p>labile particulate zinc</p>
http://lod.bco-dmo.org/id/dataset-parameter/767777.rdf
Name: Zn_Lab_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767778.rdf
Name: Cd_Tot
Units: pM
Description: <p>total particulate cadmium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767779.rdf
Name: Cd_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767780.rdf
Name: Mo_Tot
Units: pM
Description: <p>total particulate molybdenum</p>
http://lod.bco-dmo.org/id/dataset-parameter/767781.rdf
Name: Mo_Tot_Flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767782.rdf
Name: Pb_Tot
Units: pM
Description: <p>total particulate lead</p>
http://lod.bco-dmo.org/id/dataset-parameter/767783.rdf
Name: Pb_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767784.rdf
Name: Ba_Tot
Units: pM
Description: <p>total particulate barium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767785.rdf
Name: Ba_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767786.rdf
Name: Al_Tot
Units: pM
Description: <p>total particulate aluminum</p>
http://lod.bco-dmo.org/id/dataset-parameter/767787.rdf
Name: Al_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767788.rdf
Name: Mn_Tot
Units: pM
Description: <p>total particulate manganese</p>
http://lod.bco-dmo.org/id/dataset-parameter/767789.rdf
Name: Mn_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767790.rdf
Name: Fe_Tot
Units: pM
Description: <p>total particulate iron</p>
http://lod.bco-dmo.org/id/dataset-parameter/767791.rdf
Name: Fe_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767792.rdf
Name: Co_Tot
Units: pM
Description: <p>total particulate cobalt</p>
http://lod.bco-dmo.org/id/dataset-parameter/767793.rdf
Name: Co_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767794.rdf
Name: Cu_Tot
Units: pM
Description: <p>total particulate copper</p>
http://lod.bco-dmo.org/id/dataset-parameter/767795.rdf
Name: Cu_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767796.rdf
Name: Ni_Tot
Units: pM
Description: <p>total particulate nickel</p>
http://lod.bco-dmo.org/id/dataset-parameter/767797.rdf
Name: Ni_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767798.rdf
Name: P_Tot
Units: nM
Description: <p>total particulate phosphorus</p>
http://lod.bco-dmo.org/id/dataset-parameter/767799.rdf
Name: P_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767800.rdf
Name: Ti_Tot
Units: pM
Description: <p>total particulate titanium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767801.rdf
Name: Ti_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767802.rdf
Name: V_Tot
Units: pM
Description: <p>total particulate vanadium</p>
http://lod.bco-dmo.org/id/dataset-parameter/767803.rdf
Name: V_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
http://lod.bco-dmo.org/id/dataset-parameter/767804.rdf
Name: Zn_Tot
Units: pM
Description: <p>total particulate zinc</p>
http://lod.bco-dmo.org/id/dataset-parameter/767805.rdf
Name: Zn_Tot_flag
Units: unitless
Description: <p>quality flag for element indicated: 1 = Good data, passed QC; 3 = Questionable or suspect data, used when a data point was oceanographically inconsistent; 4 = Bad; 6 = Below detection limit.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
11461
https://darchive.mblwhoilibrary.org/bitstream/1912/29113/1/dataset-767658_dissolved-and-particulate-trace-elements__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.767658.1
download
onLine
dataset
<p>Samples were collected from 5 L Teflon-coated Niskin-X bottles hung on non-metal line, and clean techniques were followed throughout (Bruland et al., 1979). Niskin-X bottles were transferred to a clean lab immediately after retrieval. At most stations a single sample was collected from 20 m. Four-depth profiles extending to 200 m were collected at 6 stations along the transect.</p>
<p>For dissolved metal analysis, 300 mL of seawater was filtered through acid-washed 47 mm 0.4 μm polycarbonate filters into 250 mL LDPE bottles which were acid-cleaned following GEOTRACES protocols (Cutter et al., 2010). A vacuum filtration apparatus was used, with all parts in contact with the sample composed of acid-washed PFA. The assembly was rinsed with 3 aliquots of sample prior to sample collection. Samples were acidified with Optima HCl to 0.024 M, double bagged, and stored for analysis on shore.</p>
<p>Dissolved samples were analyzed using an ESI seaFAST SP2 coupled to a Perkin Elmer Nexion 350D ICP-MS. Sample aliquots were transferred to 30 mL LDPE bottles. Approximately 8 mL of sample was taken up to rinse and fill a 6 mL preconcentration loop. Samples were buffered in-line with resin-cleaned 4 M ammonium acetate buffer-adjusted to pH = 6.0 ± 0.1 and passed through an ESI pre-concentration column with a 200 μL resin bed volume. The final concentration of the buffer in the samples was 0.88 M. Metals were eluted off the column with 200 μL of 1.6 M Optima-grade HNO₃. Eluted metals passed through a PFA nebulizer, quartz spray chamber, and nickel cones on their way to an ammonia-filled dynamic reaction cell (0.55 mL/min flow).</p>
<p>Quantification was achieved by standard additions automated by the seaFAST system. A standard addition solution of 6.9 nM Fe, 46 nM Mn, 4.5 nM Zn, and 1.1 nM Pb was made in 0.024 M HCl. Concentrations in this solution were quantified using an external curve. Additions were introduced as the sample filled the preconcentration loop. The volume introduced by standard additions was kept constant, with 0.024 M Optima HCl making up the difference for samples with no additions. Each sample was spiked with 2 additions averaging roughly 100% and 200% of the sample concentration.</p>
<p>Approximately 4L of water from Niskin bottles was filtered for particulate metals. The bottles were pressurized to approximately 5 psi with 0.2 μm filtered air and seawater passed through 25 mm 0.4 μm Supor filter membranes. The membranes were housed in Swinnex polypropylene filter holders and attached to the Niskin-X bottles with Teflon tubing and polycarbonate fittings. The membrane was transferred to an acid washed petri-slide, double bagged, and kept frozen at -20°C for analysis on shore.</p>
<p>Labile and total particulate concentrations were analyzed through sequential digestion of the Supor membranes following protocol of Rauschenberg and Twining (2015). Membranes were first leached using an acetic acid-hydroxylamine solution (Berger et al., 2008) then transferred to a PFA vial and digested with a 4M HCl/4M HNO3/4M HF mixture (Ohnemus et al., 2014). Reference materials and process blanks – filters that had 2 L of 0.2 μm filtered seawater passed through them –were sequentially digested alongside the samples.</p>
<p>Digests were analyzed using a Thermo Element2 HR-ICP-MS equipped with a quartz nebulizer, cyclonic spray chamber, and nickel cones. Cd was analyzed in low resolution while all other elements were analyzed in medium resolution. In-115 was used as a drift monitor, and quantification was performed using an external curve.</p>
Specified by the Principal Investigator(s)
<p>Dissolved metal samples were instrument blank corrected and quantified using standard additions. Multiple 'process blanks' (0.024 M HCl spiked with 0.1% seawater) were run daily, and daily detection limits were calculated based on 3x the standard deviation of the process blanks.</p>
<p>All particulate ICP-MS data were normalized to an internal standard (In-115) and quantified using external calibration curves. Concentrations of each element per filter were calculated and the contribution of the process blank (measured as the elements contained in an acid-washed filter through which 0.2-µm filtered water was passed during the cruise) was then subtracted. Separate process blanks were calculated for the labile and total digestions. Element concentrations (per liter of water filtered) were calculated by dividing the per filter concentration by the volume of water passed through each filter.</p>
<p>Data quality:&nbsp;<br />
Data are flagged with the following:<br />
1 = Good data, passed QC;<br />
3 = Questionable or suspect data, used when a data point was oceanographically inconsistent;<br />
4 = Bad;<br />
6 = Below detection limit.</p>
<p>BCO-DMO Processing:&nbsp;modified parameter names (removed units, replaced hyphens and spaces with underscores, added "_flag" to flag columns, replaced blank cells with "nd")</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Perkin Elmer Nexion 350D ICP-MS
Perkin Elmer Nexion 350D ICP-MS
PI Supplied Instrument Name: Perkin Elmer Nexion 350D ICP-MS PI Supplied Instrument Description:ESI seaFAST SP2 coupled to a Perkin Elmer Nexion 350D ICP-MS was used for dissolved element analysis. Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument Description: 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/
Thermo Element2 HR-ICP-MS
Thermo Element2 HR-ICP-MS
PI Supplied Instrument Name: Thermo Element2 HR-ICP-MS PI Supplied Instrument Description:Thermo Element2 HR-ICP-MS was used for particulate analysis. Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument Description: 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/
Teflon-coated Niskin-X bottles
Teflon-coated Niskin-X bottles
PI Supplied Instrument Name: Teflon-coated Niskin-X bottles Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Cruise: RR1604
RR1604
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel