http://lod.bco-dmo.org/id/dataset/997829
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
2026-04-30
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved trace metal concentrations from submarine groundwater wells, rivers and estuaries sampled along the West Florida Shelf for the STING project between November 2022 and March 2024
2026-04-30
publication
2026-04-30
revision
BCO-DMO Linked Data URI
2026-04-30
creation
http://lod.bco-dmo.org/id/dataset/997829
Kristen Nicolle Buck
Oregon State University
principalInvestigator
Salvatore Caprara
Oregon State University
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: Buck, K. N., Caprara, S. (2026) Dissolved trace metal concentrations from submarine groundwater wells, rivers and estuaries sampled along the West Florida Shelf for the STING project between November 2022 and March 2024. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-04-30 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/997829 [access date]
STING Endmember Metals Dataset Description: Methods and Sampling: <p>Samples from the submarine groundwater wells and overlying water column were collected quarterly from November 2022 through March 2024 aboard U.S. Geological Survey (USGS) small boats. This sampling effort was led by collaborator Chris Smith at USGS. Water column samples were collected by lowering the sampling line, acid-cleaned ½” OD Bev-A-Line tubing attached to ¼” synthetic line that was weighed down by a 30 lb kettlebell to target depths. Surface samples were collected at ~1 m depth and bottom samples were collected from ~1 m above the sea floor. A separate sampling line of acid-cleaned 3/8” OD Bev-A-line connected to a custom-made PVC adapter was used for sampling the submarine groundwater wells, which had been installed by USGS. Different Teflon diaphragm pumps were used for the water column and wells samples to avoid cross contamination. Samples for dissolved trace metals were filtered through 0.2 µm Pall Acropak Super membrane filter capsules and collected in acid-cleaned and triple-rinsed 125 mL low density polyethylene (LDPE, Nalgene) bottles. Sample collection and processing for riverine and estuarine end members were accomplished by collaborators from the University of South Florida as described in the related dataset, Conway and Hunt (2026).</p>
<p>All dissolved trace metal samples were acidified within 24 h of collection with ultrapure hydrochloric acid (HCl, Optima) to 0.024 N HCl, double bagged in buckets and stored at room temperature until analyzed at Oregon State University (OSU).</p>
<p><strong>Analysis of dissolved trace metal concentrations</strong></p>
<p>Concentrations of dissolved (&lt;0.2 µm) trace metals, including aluminum (Al), scandium (Sc), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), molybdenum (Mo), cadmium (Cd), barium (Ba), lutetium (Lu) and lead (Pb), were analyzed using direct dilution analysis with a Thermo Scientific iCAP-RQ Quadrupole CCT ICP-MS. This instrument is maintained at OSU in the Keck Collaboratory for Plasma Spectrometry.</p>
<p>Samples were diluted 1:20 with 2% nitric acid (HNO<sub>3</sub>, Optima) and quantified with nine-point calibration curves made in the same acid matrix but spiked with seawater to match matrix salinity of diluted samples; 1 ppb indium was added to all samples and standards as an internal standard. Reference materials (NASS-7, CASS-6) were measured in each run following the same dilution protocol. Blanks were determined from separate measurements of the 2% HNO<sub>3</sub> matrix including 1 ppb In. Reference material results, averaged blanks and limits of detection are provided in the supplemental Tables.</p>
<p>Sample analyses for trace metals were performed by senior researcher Dr. Salvatore Caprara in the College of Earth, Ocean and Atmospheric Sciences at Oregon State University.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2148836 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2148836
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2326719 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2326719
onGoing
Kristen Nicolle Buck
Oregon State University
541-737-7401
2651 SW Orchard Avenue CEOAS
Corvallis
OR
97331
USA
kristen.buck@oregonstate.edu
pointOfContact
Salvatore Caprara
Oregon State University
capraras@oregonstate.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
STING_ID
CRUISE_ID
DATETIME_UTC
DATETIME_LOCAL_ET
DATE_LOCAL
TIME_LOCAL
TIME_ZONE
LATITUDE
LONGITUDE
STN
SAMPLE_ID
SAMPLE_DESC
SITE_TYPE
PLATFORM
Al_D_CONC
Al_D_STDEV
Al_D_COUNT
Al_D_FLAG
Mn_D_CONC
Mn_D_STDEV
Mn_D_COUNT
Mn_D_FLAG
Fe_D_CONC
Fe_D_STDEV
Fe_D_COUNT
Fe_D_FLAG
Co_D_UV_CONC
Co_D_UV_STDEV
Co_D_UV_COUNT
Co_D_UV_FLAG
Co_D_noUV_CONC
Co_D_noUV_STDEV
Co_D_noUV_COUNT
Co_D_noUV_FLAG
Ni_D_CONC
Ni_D_STDEV
Ni_D_COUNT
Ni_D_FLAG
Cu_D_UV_CONC
Cu_D_UV_STDEV
Cu_D_UV_COUNT
Cu_D_UV_FLAG
Cu_D_noUV_CONC
Cu_D_noUV_STDEV
Cu_D_noUV_COUNT
Cu_D_noUV_FLAG
Zn_D_CONC
Zn_D_STDEV
Zn_D_COUNT
Zn_D_FLAG
Mo_D_CONC
Mo_D_STDEV
Mo_D_COUNT
Mo_D_FLAG
Cd_D_CONC
Cd_D_STDEV
Cd_D_COUNT
Cd_D_FLAG
Ba_D_CONC
Ba_D_STDEV
Ba_D_COUNT
Ba_D_FLAG
Lu_D_CONC
Lu_D_STDEV
Lu_D_COUNT
Lu_D_FLAG
Pb_D_CONC
Pb_D_STDEV
Pb_D_COUNT
Pb_D_FLAG
TM pump 2
TM pump 1
iCAP-RQ Quadrupole CCT ICP-MS (Thermo Scientific)
theme
None, User defined
sample identification
Cruise identifier
ISO_DateTime_UTC
ISO_DateTime_Local
date_local
time_local
time_zone
latitude
longitude
station
sample description
sampling_method
platform
Aluminum
standard deviation
count
quality flag
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Molybdenum
Cadmium
Barium
Lutetium (Lu)
Lead
featureType
BCO-DMO Standard Parameters
Pump
Pump
Quadrupole Mass Spectrometer
instrument
BCO-DMO Standard Instruments
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: Linking iron and nitrogen sources in an oligotrophic coastal margin: Nitrogen fixation and the role of boundary fluxes
https://osprey.bco-dmo.org/project/880516
Collaborative Research: Linking iron and nitrogen sources in an oligotrophic coastal margin: Nitrogen fixation and the role of boundary fluxes
<p><strong>NSF Award Abstract:</strong><br />
This project will investigate how groundwater discharge delivers important nutrients to the coastal ecosystems of the West Florida Shelf. Preliminary studies indicate that groundwater may supply both dissolved organic nitrogen (DON) and iron in this region. In coastal ecosystems like the West Florida Shelf that have very low nitrate and ammonium concentrations, DON is the main form of nitrogen available to organisms. Nitrogen cycling is strongly affected by iron availability because iron is essential for both photosynthesis and for nitrogen fixation. This study will investigate the sources and composition of DON and iron, and their influence on the coastal ecosystem. The team will sample offshore groundwater wells, river and estuarine waters, and conduct two expeditions across the West Florida Shelf in winter and summer. Investigators will participate in K-12 and outreach activities to increase awareness of the project and related science. The project will fund the work of six graduate and eight undergraduate students across five institutions, furthering NSF’s goals of education and training.</p>
<p>Motivated by preliminary observations of unexplained, tightly-correlated DON and dissolved iron concentrations across the West Florida Shelf (WFS), the proposed work will quantify the flux and isotopic signatures of submarine groundwater discharge (SGD)-derived DON and iron to the WFS, and evaluate the bioavailability of this temporally-variable source using four seasonal near-shore campaigns sampling offshore groundwater wells, estuarine, and riverine endmembers and two cross-shelf cruises. The work will evaluate whether SGD stimulates nitrogen fixation on the WFS, and the potential for the stimulated nitrogen fixation to further modify the chemistry of DON and dissolved iron in the region. The cross-shelf cruises will investigate hypothesized periods of maximum SGD and Trichodesmium abundance (June), and reduced river discharge and SGD (February), thus comparing two distinct biogeochemical regimes. The concentrations and isotopic compositions of DON and dissolved iron, molecular composition of DON, and the concentration and composition of iron-binding ligands will be characterized. Nitrogen fixation rates and Trichodesmium spp. abundance and expression of iron stress genes will be measured. Fluxes of DON and iron from SGD and rivers will be quantified with radium isotope mass balances. The impacts of SGD on nitrogen fixation and DON/ligand production will be constrained with incubations of natural phytoplankton communities with submarine groundwater amendments. Two hypotheses will be tested: 1) SGD is the dominant source of bioavailable DON and dissolved iron on the WFS, and 2) SGD-alleviation of iron stress changes the dominant Trichodesmium species on the WFS, increases nitrogen fixation rates and modifies DON and iron composition. Overall, the work will establish connections between marine nitrogen and iron cycling and evaluate the potential for coastal inputs to modify water along the WFS before export to the Atlantic Ocean. This study will thus provide a framework to consider these boundary fluxes in oligotrophic coastal systems and the relative importance of rivers and SGD as sources of nitrogen and iron in other analogous locations, such as coastal systems in Australia, India, and Africa, where nitrogen fixation and SGD have also been documented.</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>
West Florida Shelf DON and Fe
largerWorkCitation
project
eng; USA
oceans
-83.0012
-81.8474
26.3874
28.7669
2022-11-14
2024-03-04
Gulf of Mexico/America, West Florida Shelf
0
BCO-DMO catalogue of parameters from Dissolved trace metal concentrations from submarine groundwater wells, rivers and estuaries sampled along the West Florida Shelf for the STING project between November 2022 and March 2024
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/999845.rdf
Name: STING_ID
Units: unitless
Description: <p>Unique number assigned to each sampling event in STING project</p>
http://lod.bco-dmo.org/id/dataset-parameter/999846.rdf
Name: CRUISE_ID
Units: unitless
Description: <p>Field sampling event ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/999847.rdf
Name: DATETIME_UTC
Units: unitless
Description: <p>Datetime (UTC) ISO formatted</p>
http://lod.bco-dmo.org/id/dataset-parameter/999849.rdf
Name: DATETIME_LOCAL_ET
Units: unitless
Description: <p>Local datetime when sample was collected, Eastern Time (EST/EDT)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000212.rdf
Name: DATE_LOCAL
Units: unitless
Description: <p>Date when sample was collected, Eastern Time (EST/EDT)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000213.rdf
Name: TIME_LOCAL
Units: unitless
Description: <p>Local time when sample was collected, Eastern Time (EST/EDT); 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/999850.rdf
Name: TIME_ZONE
Units: unitless
Description: <p>Time zone of local time based on date of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/999851.rdf
Name: LATITUDE
Units: decimal degrees
Description: <p>Latitude of sample collection, in decimal degrees, positive is North; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/999853.rdf
Name: LONGITUDE
Units: decimal degrees
Description: <p>Longitude of sample collection, in decimal degrees, negative is West; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/999855.rdf
Name: STN
Units: unitless
Description: <p>Field sampling station</p>
http://lod.bco-dmo.org/id/dataset-parameter/999856.rdf
Name: SAMPLE_ID
Units: unitless
Description: <p>Sample identification combining station number and sample type</p>
http://lod.bco-dmo.org/id/dataset-parameter/999857.rdf
Name: SAMPLE_DESC
Units: unitless
Description: <p>Sample classification: GD = groundwater deep, GS = groundwater shallow, SW = surface water, BW = bottom water, SBW = saline bottom water</p>
http://lod.bco-dmo.org/id/dataset-parameter/999858.rdf
Name: SITE_TYPE
Units: unitless
Description: <p>Type of sampling site or environment: RIVER = river and estuarine water, SW = sea water, WELL = submarine groundwater wells</p>
http://lod.bco-dmo.org/id/dataset-parameter/999859.rdf
Name: PLATFORM
Units: unitless
Description: <p>Platform used to collect the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/999860.rdf
Name: Al_D_CONC
Units: Nanomoles per liter (nM)
Description: <p>Concentrations of dissolved aluminum (Al) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999861.rdf
Name: Al_D_STDEV
Units: Nanomoles per liter (nM)
Description: <p>Standard deviation of replicate dissolved aluminum (Al) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999862.rdf
Name: Al_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Al_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999863.rdf
Name: Al_D_FLAG
Units: unitless
Description: <p>Quality flag for Al_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999864.rdf
Name: Mn_D_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved manganese (Mn) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999865.rdf
Name: Mn_D_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved manganese (Mn) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999866.rdf
Name: Mn_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Mn_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999867.rdf
Name: Mn_D_FLAG
Units: unitless
Description: <p>Quality flag for Mn_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999868.rdf
Name: Fe_D_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved iron (Fe) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999869.rdf
Name: Fe_D_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved iron (Fe) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999870.rdf
Name: Fe_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Fe_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999871.rdf
Name: Fe_D_FLAG
Units: unitless
Description: <p>Quality flag for Fe_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999872.rdf
Name: Co_D_UV_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved cobalt (Co) in UV-oxidized project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999873.rdf
Name: Co_D_UV_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved cobalt (Co) measurements in UV-oxidized samples. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999874.rdf
Name: Co_D_UV_COUNT
Units: unitless
Description: <p>Number of analyses used for Co_D_UV_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999875.rdf
Name: Co_D_UV_FLAG
Units: unitless
Description: <p>Quality flag for Co_D_UV_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999876.rdf
Name: Co_D_noUV_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved cobalt (Co) in project samples; samples were not UV-oxidized prior to measurement. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999877.rdf
Name: Co_D_noUV_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved cobalt (Co) measurements in samples that were not UV-oxidized. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999878.rdf
Name: Co_D_noUV_COUNT
Units: unitless
Description: <p>Number of analyses used for Co_D_noUV_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999879.rdf
Name: Co_D_noUV_FLAG
Units: unitless
Description: <p>Quality flag for Co_D_noUV_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999880.rdf
Name: Ni_D_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved nickel (Ni) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999881.rdf
Name: Ni_D_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved nickel (Ni) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999882.rdf
Name: Ni_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Ni_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999883.rdf
Name: Ni_D_FLAG
Units: unitless
Description: <p>Quality flag for Ni_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999884.rdf
Name: Cu_D_UV_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved copper (Cu) in UV-oxidized project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999885.rdf
Name: Cu_D_UV_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved copper (Cu) measurements in UV-oxidized samples. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999886.rdf
Name: Cu_D_UV_COUNT
Units: unitless
Description: <p>Number of analyses used for Cu_D_UV_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999887.rdf
Name: Cu_D_UV_FLAG
Units: unitless
Description: <p>Quality flag for Cu_D_UV_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999888.rdf
Name: Cu_D_noUV_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved copper (Cu) in project samples; samples were not UV-oxidized prior to measurement. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999889.rdf
Name: Cu_D_noUV_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved copper (Cu) measurements in samples that were not UV-oxidized. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999890.rdf
Name: Cu_D_noUV_COUNT
Units: unitless
Description: <p>Number of analyses used for Cu_D_noUV_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999891.rdf
Name: Cu_D_noUV_FLAG
Units: unitless
Description: <p>Quality flag for Cu_D_noUV_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999892.rdf
Name: Zn_D_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved zinc (Zn) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999893.rdf
Name: Zn_D_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved zinc (Zn) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999894.rdf
Name: Zn_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Zn_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999895.rdf
Name: Zn_D_FLAG
Units: unitless
Description: <p>Quality flag for Zn_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999896.rdf
Name: Mo_D_CONC
Units: Nanomoles per liter (nmol/L)
Description: <p>Concentrations of dissolved molybdenum (Mo) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999897.rdf
Name: Mo_D_STDEV
Units: Nanomoles per liter (nmol/L)
Description: <p>Standard deviation of replicate dissolved molybdenum (Mo) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999898.rdf
Name: Mo_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Mo_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999899.rdf
Name: Mo_D_FLAG
Units: unitless
Description: <p>Quality flag for Mo_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999900.rdf
Name: Cd_D_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved cadmium (Cd) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999901.rdf
Name: Cd_D_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved cadmium (Cd) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999902.rdf
Name: Cd_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Cd_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999903.rdf
Name: Cd_D_FLAG
Units: unitless
Description: <p>Quality flag for Cd_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999904.rdf
Name: Ba_D_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved barium (Ba) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999905.rdf
Name: Ba_D_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved barium (Ba) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999906.rdf
Name: Ba_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Ba_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999907.rdf
Name: Ba_D_FLAG
Units: unitless
Description: <p>Quality flag for Ba_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999908.rdf
Name: Lu_D_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved lutetium (Lu) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999909.rdf
Name: Lu_D_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved lutetium (Lu) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999910.rdf
Name: Lu_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Lu_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999911.rdf
Name: Lu_D_FLAG
Units: unitless
Description: <p>Quality flag for Lu_D_CONC</p>
http://lod.bco-dmo.org/id/dataset-parameter/999912.rdf
Name: Pb_D_CONC
Units: Picomoles per liter (pmol/L)
Description: <p>Concentrations of dissolved lead (Pb) in project samples. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999913.rdf
Name: Pb_D_STDEV
Units: Picomoles per liter (pmol/L)
Description: <p>Standard deviation of replicate dissolved lead (Pb) measurements. If only 2 replicates, the difference about the mean was used to calculate error. 'na' for 'not applicable' used when no error estimates calculated for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999914.rdf
Name: Pb_D_COUNT
Units: unitless
Description: <p>Number of analyses used for Pb_D_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/999915.rdf
Name: Pb_D_FLAG
Units: unitless
Description: <p>Quality flag for Pb_D_CONC</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
https://osprey.bco-dmo.org/dataset/997829/data/download
download
onLine
dataset
<p>Samples from the submarine groundwater wells and overlying water column were collected quarterly from November 2022 through March 2024 aboard U.S. Geological Survey (USGS) small boats. This sampling effort was led by collaborator Chris Smith at USGS. Water column samples were collected by lowering the sampling line, acid-cleaned ½” OD Bev-A-Line tubing attached to ¼” synthetic line that was weighed down by a 30 lb kettlebell to target depths. Surface samples were collected at ~1 m depth and bottom samples were collected from ~1 m above the sea floor. A separate sampling line of acid-cleaned 3/8” OD Bev-A-line connected to a custom-made PVC adapter was used for sampling the submarine groundwater wells, which had been installed by USGS. Different Teflon diaphragm pumps were used for the water column and wells samples to avoid cross contamination. Samples for dissolved trace metals were filtered through 0.2 µm Pall Acropak Super membrane filter capsules and collected in acid-cleaned and triple-rinsed 125 mL low density polyethylene (LDPE, Nalgene) bottles. Sample collection and processing for riverine and estuarine end members were accomplished by collaborators from the University of South Florida as described in the related dataset, Conway and Hunt (2026).</p>
<p>All dissolved trace metal samples were acidified within 24 h of collection with ultrapure hydrochloric acid (HCl, Optima) to 0.024 N HCl, double bagged in buckets and stored at room temperature until analyzed at Oregon State University (OSU).</p>
<p><strong>Analysis of dissolved trace metal concentrations</strong></p>
<p>Concentrations of dissolved (&lt;0.2 µm) trace metals, including aluminum (Al), scandium (Sc), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), molybdenum (Mo), cadmium (Cd), barium (Ba), lutetium (Lu) and lead (Pb), were analyzed using direct dilution analysis with a Thermo Scientific iCAP-RQ Quadrupole CCT ICP-MS. This instrument is maintained at OSU in the Keck Collaboratory for Plasma Spectrometry.</p>
<p>Samples were diluted 1:20 with 2% nitric acid (HNO<sub>3</sub>, Optima) and quantified with nine-point calibration curves made in the same acid matrix but spiked with seawater to match matrix salinity of diluted samples; 1 ppb indium was added to all samples and standards as an internal standard. Reference materials (NASS-7, CASS-6) were measured in each run following the same dilution protocol. Blanks were determined from separate measurements of the 2% HNO<sub>3</sub> matrix including 1 ppb In. Reference material results, averaged blanks and limits of detection are provided in the supplemental Tables.</p>
<p>Sample analyses for trace metals were performed by senior researcher Dr. Salvatore Caprara in the College of Earth, Ocean and Atmospheric Sciences at Oregon State University.</p>
Specified by the Principal Investigator(s)
<p>Data were flagged using the SeaDataNet quality flag scheme recommended by GEOTRACES (https://www.geotraces.org/geotraces-quality-flag-policy/) and described below. Notes specific to the application of these flags to this dataset are noted in brackets […].</p>
<p>0: No Quality Control: No quality control procedures have been applied to the data value. This is the initial status for all data values entering the working archive. [Not used].</p>
<p>1: Good Value: Good quality data value that is not part of any identified malfunction and has been verified as consistent with real phenomena during the quality control process. [Used for parameters analyzed in replicate or accompanied by certified reference material analyses. See accompanying Table 1 in the supplemental document for certified reference material values obtained in this study].</p>
<p>2: Probably Good Value: Data value that is probably consistent with real phenomena, but this is unconfirmed or data value forming part of a malfunction that is considered too small to affect the overall quality of the data object of which it is a part. [Used when no replicate measurements and no certified reference were available to check the quality of the data].</p>
<p>3: Probably Bad Value: Data value recognized as unusual during quality control that forms part of a feature that is probably inconsistent with real phenomena. [Not used].</p>
<p>4: Bad Value: An obviously erroneous data value. [Not used].</p>
<p>5: Changed Value: Data value adjusted during quality control. Best practice strongly recommends that the value before the change be preserved in the data or its accompanying metadata. [Not used].</p>
<p>6: Value Below Detection Limit: The level of the measured phenomenon was less than the limit of detection (LOD) for the method employed to measure it. The accompanying value is the detection limit for the technique or zero if that value is unknown. [Values below detection are reported as 0 and should be interpreted using the associated quality flag = 6.&nbsp;Averaged blanks and detection limits for each parameter are provided in accompanying Table 2 in the supplemental document].</p>
<p>7: Value in Excess: The level of the measured phenomenon was too large to be quantified by the technique employed to measure it. The accompanying value is the measurement limit for the technique. [Not used].</p>
<p>8: Interpolated Value: This value has been derived by interpolation from other values in the data object. [Not used].</p>
<p>9: Missing Value: The data value is missing. Any accompanying value will be a magic number representing absent data [Used when no data is available for this parameter].</p>
<p>A: Value Phenomenon Uncertain: There is uncertainty in the description of the measured phenomenon associated with the value such as chemical species or biological entity. [Not used].</p>
Specified by the Principal Investigator(s)
- Loaded CSV file BCO-DMO_Buck_STING-LAND_Metals_260206.csv as table "res1" with header row 1, skipping row 2 (units row), treating "", "nd", "na", and "nda" as missing values
- Combined DATE_LOCAL (MM/DD/YY) and TIME_LOCAL (HH:MM) into new datetime column DATETIME_LOCAL_ET using America/New_York timezone (handles both EST and EDT automatically); rows with missing time values produce null
- Created DATETIME_UTC by converting the same DATE_LOCAL and TIME_LOCAL fields from America/New_York timezone to UTC, output as ISO format datetime
- Reformatted DATE_LOCAL from MM/DD/YY to ISO 8601 format %Y-%m-%d (datetime type, UTC)
- Reordered all columns placing identifiers and temporal/spatial columns first, followed by metal concentration groups (Al, Mn, Fe, Co_UV, Co_noUV, Ni, Cu_UV, Cu_noUV, Zn, Mo, Cd, Ba, Lu, Pb), each with their CONC, STDEV, COUNT, and FLAG columns
- Applied find/replace on Ni_D_COUNT to replace "3.0" with "3" to conform to integer type, in line with the other values
- Renamed column TYPE to SITE_TYPE and SAMPLE to SAMPLE_DESC for clarity
- Output written to 997829_v1_sting_endmember_metals.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
TM pump 2
TM pump 2
PI Supplied Instrument Name: TM pump 2 PI Supplied Instrument Description:TM pump 2: Yamada DP-5F High purity Pump with 3/8” OD Bev-A-Line tubing fitted with a custom-made PVC adapter was deployed to collect SGD wells water samples. Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
TM pump 1
TM pump 1
PI Supplied Instrument Name: TM pump 1 PI Supplied Instrument Description:TM pump 1: Almatec E15TTT Double PTFE Diaphram Pump with 1/2” OD Bev-A-Line tubing was deployed on 1/4” synthetic line weighted with a 30 lbs kettlebell to collect surface and bottom seawater samples. Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
iCAP-RQ Quadrupole CCT ICP-MS (Thermo Scientific)
iCAP-RQ Quadrupole CCT ICP-MS (Thermo Scientific)
PI Supplied Instrument Name: iCAP-RQ Quadrupole CCT ICP-MS (Thermo Scientific) PI Supplied Instrument Description:iCAP-RQ Quadrupole CCT ICP-MS (Thermo Scientific) was used to measure trace metal concentrations in seawater samples. Instrument Name: Quadrupole Mass Spectrometer Instrument Short Name:QMS Instrument Description: A piece of apparatus that consists of an ion source, a mass-to-charge analyser, a detector and a vacuum system and is used to measure mass spectra. The detector is a quadrupole mass-to-charge analyser, which holds the ions in a stable orbit by an electric field generated by four parallel electrodes.