http://lod.bco-dmo.org/id/dataset/943015
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
2024-11-06
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved trace metals and macronutrients from samples collected using a tow-fish system on R/V Melville MV1405 (IRN-BRU) cruise in the California Current System in July 2014
2024-11-20
publication
2024-11-20
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-11-25
publication
https://doi.org/10.26008/1912/bco-dmo.943015.1
Kenneth W. Bruland
University of California-Santa Cruz
principalInvestigator
Tyler Coale
University of California-Santa Cruz
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: Till, C. P., Coale, T., Bruland, K. W. (2024) Dissolved trace metals and macronutrients from samples collected using a tow-fish system on R/V Melville MV1405 (IRN-BRU) cruise in the California Current System in July 2014. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-11-20 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.943015.1 [access date]
Dissolved trace metals and macronutrients from a 2014 IRNBRU cruise Surface Data Dataset Description: Methods and Sampling: <p><strong>Nitrate-nitrite, Phosphate, Silicate, Nitrite</strong></p>
<p>Samples were collected from a trace-metal clean towed-fish system (Bruland et al., 2001). Samples were analyzed shortly after collection at sea using standard spectrophotometric methods (Parsons 1984) on a Lachat QuickChem 8000 Flow Injection Analysis System.</p>
<p><strong>Dissolved trace metals</strong></p>
<p>Surface samples for transects were sampled using a tow-fish system (Bruland et al., 2001) plumbed into a trace metal clean van. Samples were filtered directly from the GoFlo through 0.2 μm Acropak Supor membrane capsule filters into pre-cleaned LDPE bottles. The acropaks were pre-cleaned and flushed with at least 250 mL of sample before sampling. Sample bottles were pre-cleaned cleaned rigorously as per the GEOTRACES cookbook (Cutter et al., 2014), and were rinsed with sample three times before filling. Samples were acidified at sea to a pH of ~1.7 with quartz-distilled 6 M HCl (4 mL per liter) and stored for analysis post-cruise. Samples were analyzed for trace metals after the cruise with the method of Biller and Bruland (2012), with modifications as described in Parker et al. (2016). Briefly, this involves buffering the seawater to pH 6.0 ± 0.2 immediately before pre-concentrating on PA1 resin. The resin was extracted with 1 N optima nitric acid with rhodium as an internal standard. Extracts were analyzed on the Thermo Fisher Element 2 extended range ICP-MS at UC Santa Cruz.</p>
<p>Iron was additionally analyzed shipboard with a flow injection analysis method published in Lohan et al. (2006) with modifications as described in Biller et al. (2013). Briefly, this method involves pre-concentrating the iron on a toyopearl column at pH 2, eluting it into a buffered (pH ~5.7) reaction stream that contains DPD, a molecule that turns pink when oxidized by iron. H2O2 is also in the reaction stream, which re-oxidizes the iron, so that each iron molecule can react with multiple DPD molecules, another mechanism to increase the iron signal. The reaction stream absorbance is measured with a flow through spectrophotometer.</p>
<p>Generally, the measurements from these two methods for Fe agreed well; where there was a problem with one or the other dataset, we only report one dataset.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1259776 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1259776
completed
Kenneth W. Bruland
University of California-Santa Cruz
(831) 459-4587
Ocean Sciences Department University of California 1156 High Street
Santa Cruz
CA
95064
USA
bruland@ucsc.edu
pointOfContact
Tyler Coale
University of California-Santa Cruz
Tcoale@jcvi.org
pointOfContact
asNeeded
Dataset Version: 1
Unknown
DATE_TIME_ISO_UTC
Latitude
Longitude
Transect_number
Nitrate
Phosphate
Silicate
Fe
Y
Cd
La
Pb
Ce
Sc
Mn
Co
Ni
Cu
Zn
Ga
trace-metal clean towed-fish system
Thermo Element XR magnetic sector inductively coupled plasma mass spectrometer (ICP-MS)
Lachat QuickChem 8000 Flow Injection Analysis System
theme
None, User defined
ISO_DateTime_UTC
latitude
longitude
site
nitrate plus nitrite
reactive phosphorus (PO4)
Silicate, Si(OH)4, silicic acid
Iron
trace metal concentration
Cadmium
Lanthanum (La)
Lead
Scandium
Manganese
Cobalt
Nickel
Copper
Zinc
Gallium
featureType
BCO-DMO Standard Parameters
GeoFish Towed near-Surface Sampler
Inductively Coupled Plasma Mass Spectrometer
Lachat QuikChem 8000 flow injection analyzer and Ion Chromatography (IC) system
instrument
BCO-DMO Standard Instruments
MV1405
service
Deployment Activity
California Coastline
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.
Accomplishment Based Renewal: An iron limitation mosaic within the central California Current System
https://osprey.bco-dmo.org/project/876635
Accomplishment Based Renewal: An iron limitation mosaic within the central California Current System
<p><em>NSF Award Abstract:</em><br />
Eastern boundary upwelling systems have long been recognized for their high phytoplankton productivity. Carr and Kearns (2003), in a detailed comparison of eastern boundary current systems, reported that biomass sustained by a given macronutrient concentration in Atlantic eastern boundary current systems was twice as large as those systems in the Pacific. The authors concluded "It is not clear whether the apparent difference in biomass supported by available nutrients is due to differences in the efficiency of the phytoplankton community, perhaps related to the availability of iron, or to grazing pressure." They suggested that the width of the shelf might be considered a proxy for the benthic availability of iron. The lowest biomass for a given macronutrient concentration was in the Peru-Humboldt Current and in the northern California region of the California Current System, both areas with low dust inputs and a relatively narrow shelf.</p>
<p>In this Accomplishment Based Renewal project, a marine trace metal geochemist at the University of California - Santa Cruz and his students and colleagues will continue a decades-old quest to understand the role of iron in the central California Current System (cCCS). Field efforts will combine continuous underway iron and nutrient data in surface waters and a series of vertical profiles. The focus will include three regions within the cCCS: a variety of active Fe-replete and Fe-deplete coastal upwelling regimes, the eddy-rich California Current transition zone that is Fe-limited and has elevated nitrate but relatively low and uniform chlorophyll concentrations, and the offshore, oligotrophic California Current. They will map surface and depth distributions of Fe and other micro- and macronutrients. There are four specific goals dealing with characterizing the organic Fe(III)-binding organic ligands, determining Fe(II) and Fe(III) concentrations in hypoxic waters over the shelf, examining the exchange between particulate and dissolved forms of Fe, and studying the roles of eddies in the eddy-rich transition waters of the cCCS.</p>
<p>Broader Impacts</p>
<p>Direct Benefits to Science: There is a great deal of interest in the CCS because of its importance in terms of phytoplankton productivity and the support of higher trophic levels. Until now, the emphasis in studies of the CCS has been on relationships between physics and biology. This study will insert the important role of micronutrient chemistry into the picture. It will also serve an important role in securing ship time in advance and providing logistical support for other collaborative studies. This is extremely valuable and cost effective for collaborating scientists since with the hydrography, nutrient and trace metal data provided, they can focus on their complimentary research efforts.</p>
<p>Outreach and Education: The project will provide funding for two current graduate students at UCSC, where they will also receive course training in a curriculum that includes i) scientific communication, ii) careers in marine science, and iii) grant writing. A broader impact goal of this project is to facilitate teaching and learning on marine science-related topics through translating research objectives into widely distributed educational materials for classroom use. To accomplish this, the team will partner with the Seymour Discovery Center at the Long Marine Lab, UCSC. The Discovery Center receives 14,000 visitors each year, and the project will provide funds to develop an interactive display on limiting nutrients and phytoplankton bloom development in the CCS.</p>
iron limitation mosaic
largerWorkCitation
project
eng; USA
oceans
California Coastline
-127.1993
-123.5954
37.6695
42.8684
2014-07-06
2014-07-24
0
BCO-DMO catalogue of parameters from Dissolved trace metals and macronutrients from samples collected using a tow-fish system on R/V Melville MV1405 (IRN-BRU) cruise in the California Current System in July 2014
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/944090.rdf
Name: DATE_TIME_ISO_UTC
Units: unitless
Description: <p>Date and time of sample collection in UTC</p>
http://lod.bco-dmo.org/id/dataset-parameter/944091.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sampling site, negative values = South</p>
http://lod.bco-dmo.org/id/dataset-parameter/944092.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sampling site, negative values = West</p>
http://lod.bco-dmo.org/id/dataset-parameter/944093.rdf
Name: Transect_number
Units: unitless
Description: <p>Transect identification</p>
http://lod.bco-dmo.org/id/dataset-parameter/944094.rdf
Name: Nitrate
Units: umol/kg
Description: <p>Nitrate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944095.rdf
Name: Phosphate
Units: umol/kg
Description: <p>Phosphate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944096.rdf
Name: Silicate
Units: umol/kg
Description: <p>Silicic concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944097.rdf
Name: Fe
Units: nmol/kg
Description: <p>Iron concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944098.rdf
Name: Y
Units: pmol/kg
Description: <p>Yttrium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944099.rdf
Name: Cd
Units: pmol/kg
Description: <p>Cadmium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944100.rdf
Name: La
Units: pmol/kg
Description: <p>Lanthanum concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944101.rdf
Name: Pb
Units: pmol/kg
Description: <p>Lead concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944102.rdf
Name: Ce
Units: pmol/kg
Description: <p>Cerium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944103.rdf
Name: Sc
Units: pmol/kg
Description: <p>Scandium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944104.rdf
Name: Mn
Units: nmol/kg
Description: <p>Manganese concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944105.rdf
Name: Co
Units: pmol/kg
Description: <p>Cobalt concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944106.rdf
Name: Ni
Units: nmol/kg
Description: <p>Nickel concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944107.rdf
Name: Cu
Units: nmol/kg
Description: <p>Copper concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944108.rdf
Name: Zn
Units: nmol/kg
Description: <p>Zinc concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/944109.rdf
Name: Ga
Units: pmol/kg
Description: <p>Gallium concentration</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
9252
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/48f5d850-072f-41b1-8508-a47e48c626f0/content
download
https://doi.org/10.26008/1912/bco-dmo.943015.1
download
onLine
dataset
<p><strong>Nitrate-nitrite, Phosphate, Silicate, Nitrite</strong></p>
<p>Samples were collected from a trace-metal clean towed-fish system (Bruland et al., 2001). Samples were analyzed shortly after collection at sea using standard spectrophotometric methods (Parsons 1984) on a Lachat QuickChem 8000 Flow Injection Analysis System.</p>
<p><strong>Dissolved trace metals</strong></p>
<p>Surface samples for transects were sampled using a tow-fish system (Bruland et al., 2001) plumbed into a trace metal clean van. Samples were filtered directly from the GoFlo through 0.2 μm Acropak Supor membrane capsule filters into pre-cleaned LDPE bottles. The acropaks were pre-cleaned and flushed with at least 250 mL of sample before sampling. Sample bottles were pre-cleaned cleaned rigorously as per the GEOTRACES cookbook (Cutter et al., 2014), and were rinsed with sample three times before filling. Samples were acidified at sea to a pH of ~1.7 with quartz-distilled 6 M HCl (4 mL per liter) and stored for analysis post-cruise. Samples were analyzed for trace metals after the cruise with the method of Biller and Bruland (2012), with modifications as described in Parker et al. (2016). Briefly, this involves buffering the seawater to pH 6.0 ± 0.2 immediately before pre-concentrating on PA1 resin. The resin was extracted with 1 N optima nitric acid with rhodium as an internal standard. Extracts were analyzed on the Thermo Fisher Element 2 extended range ICP-MS at UC Santa Cruz.</p>
<p>Iron was additionally analyzed shipboard with a flow injection analysis method published in Lohan et al. (2006) with modifications as described in Biller et al. (2013). Briefly, this method involves pre-concentrating the iron on a toyopearl column at pH 2, eluting it into a buffered (pH ~5.7) reaction stream that contains DPD, a molecule that turns pink when oxidized by iron. H2O2 is also in the reaction stream, which re-oxidizes the iron, so that each iron molecule can react with multiple DPD molecules, another mechanism to increase the iron signal. The reaction stream absorbance is measured with a flow through spectrophotometer.</p>
<p>Generally, the measurements from these two methods for Fe agreed well; where there was a problem with one or the other dataset, we only report one dataset.</p>
Specified by the Principal Investigator(s)
<p>For the surface transect data, we did not have nutrient data and trace metal data taken from exactly the same moment. In order to directly compare the two datasets, the nutrient data was interpolated based on time to align with the trace metal data.&nbsp;</p>
Specified by the Principal Investigator(s)
- Imported original file "IRNBRU TM and macronutrient surface data.xlsx" into the BCO-DMO system.
- Converted "DATE TIME (GMT)" from %Y-%m-%dT%H:%M:%S to ISO format %Y-%m-%dT%H:%M:%SZ and changed parameter name to "ISO_DateTime_UTC"
- Renamed fields to comply with BCO-DMO naming conventions, removing special characters and spaces
- Saved the final file as "943015_v1_iron_limitation_surface.csv"
Specified by BCO-DMO Data Managers
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
trace-metal clean towed-fish system
trace-metal clean towed-fish system
PI Supplied Instrument Name: trace-metal clean towed-fish system PI Supplied Instrument Description:Samples were collected from a trace-metal clean towed-fish system (Bruland et al., 2001) (transects), from teflon-coated Go-Flos on a non-metal line, and from the ship's rosette. Samples were analyzed shortly after collection at sea using standard spectrophotometric methods (Parsons 1984) on a Lachat QuickChem 8000 Flow Injection Analysis System. Instrument Name: GeoFish Towed near-Surface Sampler Instrument Short Name:GeoFish Instrument Description: The GeoFish towed sampler is a custom designed near surface (2 meters or less) sampling system for the collection of trace metal clean seawater. It consists of a PVC encapsulated lead weighted torpedo and separate PVC depressor vane supporting the intake utilizing all PFA Teflon tubing connected to a deck mounted, air-driven, PFA Teflon dual-diaphragm pump which provides trace-metal clean seawater at up to 3.7L/min. The GeoFish is towed at up to 13kts off to the side of the vessel outside of the ship's wake to avoid possible contamination from the ship's hull. It was developed by Geoffrey Smith and Ken Bruland (University of California, Santa Cruz). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/31/
Thermo Element XR magnetic sector inductively coupled plasma mass spectrometer (ICP-MS)
Thermo Element XR magnetic sector inductively coupled plasma mass spectrometer (ICP-MS)
PI Supplied Instrument Name: Thermo Element XR magnetic sector inductively coupled plasma mass spectrometer (ICP-MS) PI Supplied Instrument Description:Trace metal extracts were analyzed with a Thermo Element XR magnetic sector inductively coupled plasma mass spectrometer (ICP-MS) 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/
Lachat QuickChem 8000 Flow Injection Analysis System
Lachat QuickChem 8000 Flow Injection Analysis System
PI Supplied Instrument Name: Lachat QuickChem 8000 Flow Injection Analysis System PI Supplied Instrument Description:Nutrients were analyzed with a Lachat QuickChem 8000 Flow Injection Analysis System. Instrument Name: Lachat QuikChem 8000 flow injection analyzer and Ion Chromatography (IC) system Instrument Short Name: Instrument Description: The Lachat QuikChem 8000 can operate flow injection analysis and ion chromatography simultaneously and independently on the same instrument platform. Instrument includes sampler, dilutor, sampling pump, electronics unit, and data station. Analysis takes 20-60 seconds, with a sample throughput of 60-120 samples per hour. Measurements are in the range of parts per trillion to parts per hundred.
Cruise: MV1405
MV1405
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel
MV1405
Kenneth W. Bruland
University of California-Santa Cruz
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel