http://lod.bco-dmo.org/id/dataset/894761
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
2023-04-25
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Benthic iron data on the Oregon Shelf from samples collected on R/V Oceanus cruise OC2107A during July to August 2021
2024-04-22
publication
2024-04-22
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-08-12
publication
https://doi.org/10.26008/1912/bco-dmo.894761.1
James W. Moffett
University of Southern California
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: Moffett, J. W. (2025) Benthic iron data on the Oregon Shelf from samples collected on R/V Oceanus cruise OC2107A during July to August 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-04-22 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.894761.1 [access date]
Benthic Iron on the Oregon Shelf Dataset Description: Methods and Sampling: <p>Sampling at the sediment-water interface was carried out using a benthic lander called Susane built at IFREMER by Joel Knoery (Knoery et al., 2019). It was deployed using a 0.322 cable from the port side squirt boom on the Oceanus. The lander was deployed at the seafloor and syringes sampled water at 10-centimeter (cm) intervals while it sat on the seafloor. Transfer of sampled water to the analytical system is described below.</p>
<p>Water column samples were collected using a Seabird Rosette equipped with an SBE50 pressure sensor and an autofire module. It was pre-programmed and deployed on amsteel cable and fired at select depths). Bottles were 5 liter (L) Niskin-style acquired from Ocean Test Equipment. They were teflon-coated and had external teflon-coated springs.</p>
<p>All iron (Fe) samples were filtered using Pall Gelman Supor 0.45 micrometer (μm) polyethersulfone filters with either Millipore Swinnex polypropylene 25-millimeter (mm) filter holders or Advantec-MFS type PP47 47 mm polypropylene inline filter holders, as recommended by the GEOTRACES Cookbook version 3.0 (Cutter et al., 2017). Nitrogen (N2) gas was used to pressurize the Go-Flo bottles during filtration. Filtered fractions for Fe(II) measurement were transferred to a syringe using a three-way Luer-lock adaptor to prevent the introduction of air, then measured immediately. Fe(II) was measured via chemiluminescence with luminol, consisting of a continuous 2 milliliters per minute (mL min-1) flow of sample and luminol solution at a 1:1 ratio into a standard quartz flow cell with a Hamamatsu HC135 photon counter via a peristaltic pump. The signal value for each sample was determined as the mean of the signal for 30 seconds (n=50), once the signal reached a plateau. Because luminol chemiluminescence is not selective for Fe(II), each sample was also treated with diethylenetriamine pentaacetate (DTPA), a selective Fe(II) chelator used as a masking ligand. The DTPA-treated samples, with a final concentration of 0.5 millimolar (mM) DTPA, serve to correct for chemiluminescence caused by compounds besides Fe(II). DTPA-treated samples were processed with the exact same analytical train as untreated Fe(II) samples. The order of sample measurement was randomized to prevent systematic error due to sample oxidation. Fe(II) calibration was performed each time the system was powered on and calibration curves consisted of six or more concentrations within the appropriate working range of the measured Fe(II). These concentrations were created by spiking a seawater solution that aged for at least 24 hours in an amber bottle with an appropriate volume of 1 micromole (μM) Fe(II) working stock in milliQ water. This working stock was created fresh before calibration from a 0.01 mole (M) Fe(II) standard solution at pH 2, prepared monthly by dissolving Optima grade hydrochloric acid (Fisher) and ammonium ferrous sulfate (Fluka) in milliQ water. Luminol solutions were prepared first using a stock solution with 0.796 grams (g) of sodium luminol (Sigma), 250 mL of Optima grade ammonium hydroxide (Fisher), approximately 45 mL of Optima grade hydrochloric acid (Fisher), and milliQ water. The working luminol reagent was produced by diluting this stock to one-fourth of its starting concentration, then heating it at 50º Celsius for 9 to 12 hours. The DTPA solution was created by diluting 2.4584 g of DTPA (Millipore-Sigma) with sodium hydroxide (Aldrich, trace metal basis) in milliQ water for a final concentration of 50 mM DTPA and 200 mM NaOH. Additional details of this method including reagent preparation, instrumental settings, and procedures have been previously reported (Bolster et al., 2018).</p>
<p>Total dissolved Fe (dFe) samples were collected into 500 mL LDPE bottles. Within one month of collection, these samples were acidified to a pH of approximately 1.7 by adding 1 mL of hydrochloric acid (Optima, Fisher Scientific) per 500 mL of seawater. After one year of storage, samples were prepared in triplicate using the seaFAST-pico (Elemental Scientific) offline method, where 10 mL of acidified sample was added to a Nobias resin chelation column and then eluted with ultra-pure, distilled 5% nitric acid (Optima, Fisher Scientific) for a final volume of 0.5 mL. This method is similar to the method described in Jackson et al. (2018) and Rapp et al. (2017). Fe concentrations were quantified with a Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer and Apex desolvation system in medium resolution. A 1 part per billion (ppb) indium eluent is used during sample preparation as an internal standard to correct for instrument drift. Instrument optimization and tuning are performed daily with a 1 ppb indium and uranium tuning solution. Procedural blanks were prepared in triplicate from pH 1.7 hydrochloric acid to correct for contamination during acidification of samples. Sample concentration of Fe was determined via the isotopic dilution method in which acidified samples were spiked with a multi-element standard, including 57Fe, enriching it over the natural isotopic abundances.</p>
<p>Oxygen (O2) concentrations from the benthic boundary gradient sampler were measured less than an hour from recovery using a Presens TX-3 microoptode in a flow cell fitted to the sampling syringe outlets. Between each O2 measurement, brief flushes of nitrogen gas were also used to check for calibration shifts and remove contamination between samples. The order of sample measurement was randomized to reduce the influence of any contamination post-recovery.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2023708 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2023708
completed
James W. Moffett
University of Southern California
213-740-5626
Biological Sciences, Earth Sciences, and Civil and Environmental Engineering 3616 Trousdale Pkwy
Los Angeles
CA
90089
USA
jmoffett@usc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise
Date
Fe_only
Station
Latitude
Longitude
Cast
Cast_type
Depth
Sample_number
Fe_II
Fe_II_std
Fe_II_flag
Fe_II_err_flag
dFe
Sampling_time_local
Measurement_time_local
pH
Potential_density
O2
Bottom_depth
Temperature
Salinity_practical
Comments
SUSANE
Seabird Rosette
Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer
5-liter Niskin-style bottles from Ocean Test Equipment
Presens TX-3 microoptode
Hamamatsu HC135 photon counter
SBE50 pressure sensor
theme
None, User defined
Cruise identfier
date
cast type
station
latitude
longitude
cast
depth
sample identification
Iron
quality flag
time of day
pH
density
dissolved Oxygen
depth_bottom
water temperature at measurement depth
salinity
comments
featureType
BCO-DMO Standard Parameters
benthic lander
CTD Sea-Bird
Inductively Coupled Plasma Mass Spectrometer
Niskin bottle
Optode
Photon Counter
SBE 50 pressure sensor
syringe
instrument
BCO-DMO Standard Instruments
OC2107A
service
Deployment Activity
Oregon continental margin; between 43N and 47N latitude
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: Coupling of physical and chemical processes in the shelf to basin transport of iron and iodine off Washington and Oregon
https://osprey.bco-dmo.org/project/889751
Collaborative Research: Coupling of physical and chemical processes in the shelf to basin transport of iron and iodine off Washington and Oregon
<p><em>NSF Award Abstract:</em><br />
The boundary between productive coastal waters and relatively non-productive offshore waters is not a simple function of distance from the coast, but is determined by a complex interplay between biology, chemistry, and ocean physics. This interplay is a fundamental property that controls the oceanic contribution to the food supply and the global carbon cycle. During summer months when waters are warmer with low oxygen, biological decomposition near the seafloor consumes available oxygen and releases iron from sediments into overlying seawater. In deeper parts of the ocean, canyons and other rugged surface features influence currents and create turbulence that rapidly moves iron from the shelf offshore. This iron in turn can enhance biological productivity miles away. This project will investigate (1) how decomposition processes on the continental shelf seafloor release elements like iron required for ocean life and (2) how ocean currents interact with the continental shelf and slope to move waters overlying the shelf offshore to enhance productivity. Based on model simulations from the California and Oregon coasts done over 20 years that show transport of iron via plumes from the shelf to the open ocean, scientists will collect and analyze samples for iron and iodine to prove the findings of the model. Iodine has been included in the study because it can track inputs from low oxygen sediments to the shelf. In addition, results from the study will be used to improve assumptions used in the current model. The project will support the research in whole or in part of four graduate students and several undergraduate students. The scientists are involved with High School student mentoring, through Project COOL (Chemical Oceanography Outside the Lab) and the Students on Ice Foundation.</p>
<p>Scientists from the University of Southern California and the University of California, Los Angeles will study iron (Fe) and iodine (I) geochemistry along the Washington and Oregon Coasts, where high organic matter oxidation rates, low dissolved oxygen concentrations, and high sedimentary Fe fluxes on the continental shelf occur. This project hypothesizes that a shelf-to-basin shuttle controls the supply of Fe from the Fe-rich shelf into the interior of the North Pacific Ocean. Simulations of a Regional Oceanic Modeling System (ROMS) coupled with the Biogeochemical Elemental Cycling model (BEC) run between 2007-2017 showed that this coastline is a major source of Fe to the ocean basin, exhibiting both deep and shallow Fe plumes that arise from subsurface eddies generated by poleward undercurrents. Results from this model will be used to predict how the distribution of Fe evolves seasonally and guide sampling during two cruises in 2021 to the region. According to the ROMS-BEC model, the Fe inventory is highest in late summer, when bottom water oxygen is lowest, and the inventory is lowest in winter and early spring. Model-generated deep plumes resemble those reported off Namibia, Peru and the Gulf of Alaska. This work will sample depths up to 4500m and look for such plumes. Deep plumes are important in global Fe budgets and because they may outcrop in high latitude waters that are Fe limited. Iodine will also be measured because, like Fe, it accumulates at the sediment water interface and is released under reducing conditions. Plumes of iodine arising from shelf sediments will be used as a semi-conservative tracer for lateral Fe advection. The cruises will also assess the relative importance of direct inputs from rivers (especially the Columbia River) versus reducing sediments, since these inputs are decoupled seasonally</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
Oregon shelf to basin transport
largerWorkCitation
project
eng; USA
oceans
Oregon continental margin; between 43N and 47N latitude
-126.0507
-124.19801
43.81996
46.77694
2021-07-22
2021-08-08
0
BCO-DMO catalogue of parameters from Benthic iron data on the Oregon Shelf from samples collected on R/V Oceanus cruise OC2107A during July to August 2021
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/925539.rdf
Name: Cruise
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/925540.rdf
Name: Date
Units: unitless
Description: <p>Date of sampling (local time zone)</p>
http://lod.bco-dmo.org/id/dataset-parameter/925541.rdf
Name: Fe_only
Units: unitless
Description: <p>Indicates a trace metal cast where only dissolved Fe was measured (i.e. not Fe(II))</p>
http://lod.bco-dmo.org/id/dataset-parameter/925542.rdf
Name: Station
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/925543.rdf
Name: Latitude
Units: degrees North
Description: <p>Latitude of sample collection (positive = North)</p>
http://lod.bco-dmo.org/id/dataset-parameter/925544.rdf
Name: Longitude
Units: degrees East
Description: <p>Longitude of sample collection (positive = East)</p>
http://lod.bco-dmo.org/id/dataset-parameter/925545.rdf
Name: Cast
Units: unitless
Description: <p>Cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/925546.rdf
Name: Cast_type
Units: unitless
Description: <p>Type of cast: BBG = using a benthic boundary gradient sampler with 50 mL syringes on OC2107A. Note that instead of depth, this variable now refers to height above seafloor in centimeters; CTD = using a traditional 10 or 14 L bottle mounted on a rosette; TMC= using a trace metal clean 5 L bottle mounted on a trace metal clean rosette following Geotraces protocols; TMC dFe only = Trace metal cast and only dissolved Fe was measured (i.e. not Fe(II))); these are the stations where dFe was measured the first time but Fe(II) wasn't, so we resampled and got the Fe(II).</p>
http://lod.bco-dmo.org/id/dataset-parameter/925547.rdf
Name: Depth
Units: meters (m)
Description: <p>Sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/925548.rdf
Name: Sample_number
Units: unitless
Description: <p>Sample number</p>
http://lod.bco-dmo.org/id/dataset-parameter/925549.rdf
Name: Fe_II
Units: nanomolar (nM)
Description: <p>Fe(II) concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/925550.rdf
Name: Fe_II_std
Units: nanomolar (nM)
Description: <p>Fe(II) standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/925551.rdf
Name: Fe_II_flag
Units: unitless
Description: <p>Fe(II) measurement flag: 0 = Final dilution and order of magnitude specified; 1 = Order of magnitude specified ; 2 = Final dilution specified ; 3 = Neither final dilution and order of magnitude specified.</p>
http://lod.bco-dmo.org/id/dataset-parameter/925552.rdf
Name: Fe_II_err_flag
Units: unitless
Description: <p>Fe(II) uncertainty flag: 0 = single measurement with uncertainty; 1 = doublet averaged and propagated with uncertainty.</p>
http://lod.bco-dmo.org/id/dataset-parameter/925553.rdf
Name: dFe
Units: nanomolar (nM)
Description: <p>Dissolved Fe concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/925554.rdf
Name: Sampling_time_local
Units: unitless
Description: <p>Time (local time zone) when sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/925555.rdf
Name: Measurement_time_local
Units: unitless
Description: <p>Time (local time zone) when sample was analyzed</p>
http://lod.bco-dmo.org/id/dataset-parameter/925556.rdf
Name: pH
Units: unitless (pH scale)
Description: <p>pH</p>
http://lod.bco-dmo.org/id/dataset-parameter/925557.rdf
Name: Potential_density
Units: kilogram per cubic meter (kg m-3)
Description: <p>Potential density</p>
http://lod.bco-dmo.org/id/dataset-parameter/925558.rdf
Name: O2
Units: micromoles per kilogram (umol kg-1)
Description: <p>Oxygen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/925559.rdf
Name: Bottom_depth
Units: meters (m)
Description: <p>Bottom depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/925560.rdf
Name: Temperature
Units: degrees Celsius
Description: <p>Water temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/925561.rdf
Name: Salinity_practical
Units: unitless
Description: <p>Practical salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/925562.rdf
Name: Comments
Units: unitless
Description: <p>Comments or notes</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
32734
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/deb731d6-6072-4c81-803a-004d3e0a69de/content
download
https://doi.org/10.26008/1912/bco-dmo.894761.1
download
onLine
dataset
<p>Sampling at the sediment-water interface was carried out using a benthic lander called Susane built at IFREMER by Joel Knoery (Knoery et al., 2019). It was deployed using a 0.322 cable from the port side squirt boom on the Oceanus. The lander was deployed at the seafloor and syringes sampled water at 10-centimeter (cm) intervals while it sat on the seafloor. Transfer of sampled water to the analytical system is described below.</p>
<p>Water column samples were collected using a Seabird Rosette equipped with an SBE50 pressure sensor and an autofire module. It was pre-programmed and deployed on amsteel cable and fired at select depths). Bottles were 5 liter (L) Niskin-style acquired from Ocean Test Equipment. They were teflon-coated and had external teflon-coated springs.</p>
<p>All iron (Fe) samples were filtered using Pall Gelman Supor 0.45 micrometer (μm) polyethersulfone filters with either Millipore Swinnex polypropylene 25-millimeter (mm) filter holders or Advantec-MFS type PP47 47 mm polypropylene inline filter holders, as recommended by the GEOTRACES Cookbook version 3.0 (Cutter et al., 2017). Nitrogen (N2) gas was used to pressurize the Go-Flo bottles during filtration. Filtered fractions for Fe(II) measurement were transferred to a syringe using a three-way Luer-lock adaptor to prevent the introduction of air, then measured immediately. Fe(II) was measured via chemiluminescence with luminol, consisting of a continuous 2 milliliters per minute (mL min-1) flow of sample and luminol solution at a 1:1 ratio into a standard quartz flow cell with a Hamamatsu HC135 photon counter via a peristaltic pump. The signal value for each sample was determined as the mean of the signal for 30 seconds (n=50), once the signal reached a plateau. Because luminol chemiluminescence is not selective for Fe(II), each sample was also treated with diethylenetriamine pentaacetate (DTPA), a selective Fe(II) chelator used as a masking ligand. The DTPA-treated samples, with a final concentration of 0.5 millimolar (mM) DTPA, serve to correct for chemiluminescence caused by compounds besides Fe(II). DTPA-treated samples were processed with the exact same analytical train as untreated Fe(II) samples. The order of sample measurement was randomized to prevent systematic error due to sample oxidation. Fe(II) calibration was performed each time the system was powered on and calibration curves consisted of six or more concentrations within the appropriate working range of the measured Fe(II). These concentrations were created by spiking a seawater solution that aged for at least 24 hours in an amber bottle with an appropriate volume of 1 micromole (μM) Fe(II) working stock in milliQ water. This working stock was created fresh before calibration from a 0.01 mole (M) Fe(II) standard solution at pH 2, prepared monthly by dissolving Optima grade hydrochloric acid (Fisher) and ammonium ferrous sulfate (Fluka) in milliQ water. Luminol solutions were prepared first using a stock solution with 0.796 grams (g) of sodium luminol (Sigma), 250 mL of Optima grade ammonium hydroxide (Fisher), approximately 45 mL of Optima grade hydrochloric acid (Fisher), and milliQ water. The working luminol reagent was produced by diluting this stock to one-fourth of its starting concentration, then heating it at 50º Celsius for 9 to 12 hours. The DTPA solution was created by diluting 2.4584 g of DTPA (Millipore-Sigma) with sodium hydroxide (Aldrich, trace metal basis) in milliQ water for a final concentration of 50 mM DTPA and 200 mM NaOH. Additional details of this method including reagent preparation, instrumental settings, and procedures have been previously reported (Bolster et al., 2018).</p>
<p>Total dissolved Fe (dFe) samples were collected into 500 mL LDPE bottles. Within one month of collection, these samples were acidified to a pH of approximately 1.7 by adding 1 mL of hydrochloric acid (Optima, Fisher Scientific) per 500 mL of seawater. After one year of storage, samples were prepared in triplicate using the seaFAST-pico (Elemental Scientific) offline method, where 10 mL of acidified sample was added to a Nobias resin chelation column and then eluted with ultra-pure, distilled 5% nitric acid (Optima, Fisher Scientific) for a final volume of 0.5 mL. This method is similar to the method described in Jackson et al. (2018) and Rapp et al. (2017). Fe concentrations were quantified with a Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer and Apex desolvation system in medium resolution. A 1 part per billion (ppb) indium eluent is used during sample preparation as an internal standard to correct for instrument drift. Instrument optimization and tuning are performed daily with a 1 ppb indium and uranium tuning solution. Procedural blanks were prepared in triplicate from pH 1.7 hydrochloric acid to correct for contamination during acidification of samples. Sample concentration of Fe was determined via the isotopic dilution method in which acidified samples were spiked with a multi-element standard, including 57Fe, enriching it over the natural isotopic abundances.</p>
<p>Oxygen (O2) concentrations from the benthic boundary gradient sampler were measured less than an hour from recovery using a Presens TX-3 microoptode in a flow cell fitted to the sampling syringe outlets. Between each O2 measurement, brief flushes of nitrogen gas were also used to check for calibration shifts and remove contamination between samples. The order of sample measurement was randomized to reduce the influence of any contamination post-recovery.</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong><br />
MATLAB R2018B (The MathWorks, Inc., 2018) was used to read in and average signal values for Fe(II) measurement. The calibration curve for Fe(II) using this method follows a second-order polynomial, so the "nllsqr" function (Glover et al., 2011) was used to fit this data. Sample concentrations were calculated by first subtracting the DTPA signal and then applying the "vpasolve" command with the given calibration curve. The uncertainty in measured Fe(II) concentrations was calculated using the standard error of the signal plateau (n=50). For Fe(II) samples measured in duplicate, the uncertainty consists of this standard error and the standard deviation of the two measurements added in quadrature.</p>
Specified by the Principal Investigator(s)
- Imported the original Excel file "Processed Fe2 data_OC2107A.xlsx" into the BCO-DMO system.
- Removed 'NaN' as the missing data identifier (missing values are blank in the final CSV file).
- Separated the Cruise ID from the "Fe Only" column.
- Renamed fields to comply with BCO-DMO naming conventions.
- PI Moffett provided a revised file "fe2_oc2107a_with dates.csv" including dates.
- Converted the Date field to YYYY-MM-DD format.
- Changed years of "2023" to "2021".
- PI Moffett provided a revised file "894761_v1_benthic_iron_oregon_AF.csv", which included additional dissolved Fe data.
- Removed 'N/A' as the missing data identifier (missing values are blank in the final CSV file).
- Saved the final file as "894761_v1_benthic_iron_oregon.csv".
- This dataset has been published "as is". Final review by the data submitter was not received after the data were imported into the BCO-DMO data system.
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
SUSANE
SUSANE
PI Supplied Instrument Name: SUSANE PI Supplied Instrument Description:Refer to Knoery, et al. (2019) for a description of the benthic lander nicknamed "SUSANE", which stands for "System for Underwater SAmpling of beNthic Environments". In short, this sampler was designed to simultaneously collect 16 discrete water column samples at a centimeter-scale vertical resolution. The small device (40 × 40 × 60 cm) is deployed from a small boat using a cable or a Scuba diver. The device can contribute to the characterization of vertical concentration gradients in benthic water columns. Instrument Name: benthic lander Instrument Short Name: Instrument Description: A benthic lander is an autonomous research platform used in marine research to take measurements directly on the seafloor. Benthic landers are carrier systems to which different measuring and sampling devices can be attached. They transport these devices to the seafloor and back up again. Autonomous means that the lander is not connected to the ship via a cable. It can thus work independently on the seafloor for a long period of time.
Seabird Rosette
Seabird Rosette
PI Supplied Instrument Name: Seabird Rosette Instrument Name: CTD Sea-Bird Instrument Short Name:CTD Sea-Bird Instrument Description: A Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics. This instrument designation is used when specific make and model are not known or when a more specific term is not available in the BCO-DMO vocabulary. Refer to the dataset-specific metadata for more information about the specific CTD used. More information from: http://www.seabird.com/ Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer
Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer
PI Supplied Instrument Name: Finnegan Element 2 (Thermo Scientific) Inductively Coupled Plasma-Mass Spectrometer 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/
5-liter Niskin-style bottles from Ocean Test Equipment
5-liter Niskin-style bottles from Ocean Test Equipment
PI Supplied Instrument Name: 5-liter Niskin-style bottles from Ocean Test Equipment 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/
Presens TX-3 microoptode
Presens TX-3 microoptode
PI Supplied Instrument Name: Presens TX-3 microoptode Instrument Name: Optode Instrument Short Name: Instrument Description: An optode or optrode is an optical sensor device that optically measures a specific substance usually with the aid of a chemical transducer.
Hamamatsu HC135 photon counter
Hamamatsu HC135 photon counter
PI Supplied Instrument Name: Hamamatsu HC135 photon counter Instrument Name: Photon Counter Instrument Short Name: Instrument Description: Photon counting is a technique in which individual photons are counted using some single-photon detector (SPD).
SBE50 pressure sensor
SBE50 pressure sensor
PI Supplied Instrument Name: SBE50 pressure sensor Instrument Name: SBE 50 pressure sensor Instrument Short Name:SBE50 Instrument Description: The SBE 50 digital oceanographic pressure sensor is a high-accuracy, high-resolution (16 Hz sampling) pressure sensor, intended for towed vehicle, ROV, AUV, or other autonomous profiling applications. It has titanium housing rated for depths to 7000 meters. It is offered in seven full-scale ranges from 0 to 20/100/350/1000/2000/3500/7000 meters. Its initial accuracy 0.1% of full-scale range, it has a typical Stability 0.004% of full-scale range per month, and a resolution 0.002% of full-scale range.
PI Supplied Instrument Name: Instrument Name: syringe Instrument Short Name: Instrument Description: A device used to inject fluids into or withdraw them from something; consists of a hollow barrel fitted with a plunger and a hollow needle.
Cruise: OC2107A
OC2107A
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC2107A
James W. Moffett
University of Southern California
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel