http://lod.bco-dmo.org/id/dataset/997792
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 inorganic macronutrient concentrations in water column samples and incubation experiments from STING II cruise EN704 on R/V Endeavor on the West Florida Shelf in July 2023
2026-06-04
publication
2026-06-04
revision
BCO-DMO Linked Data URI
2026-06-04
creation
http://lod.bco-dmo.org/id/dataset/997792
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 inorganic macronutrient concentrations in water column samples and incubation experiments from STING II cruise EN704 on R/V Endeavor on the West Florida Shelf in July 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-06-04 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/997792 [access date]
STING II Nutrients Dataset Description: Methods and Sampling: <p>Water column samples were collected in July 2023 aboard the R/V Endeavor using a trace metal clean rosette (SeaBird) outfitted with 12-L Niskin-X samplers (Ocean Test Equipment), a trace metal clean pump system, or a custom surface pump “towfish” system (Mellett and Buck, 2020). Seawater samples for macronutrient analysis were filtered through 0.2 µm Pall Acropak Super membrane filter capsules, collected in acid-cleaned and triple-rinsed 15-mL Falcon tubes, stored in ziplock bags and frozen (-20 ºC) until analyzed at Oregon State University following recommended best practices (Becker et al., 2020).</p>
<p>Samples from seawater incubation experiments were filtered through consecutive acid-cleaned 5 µm and 0.4 µm polycarbonate track-etched (PCTE, Whatman) filters in a dual stage Teflon filter rig (Savillex) on a custom acrylic tower. Filtrate was collected in acid-cleaned and triple-rinsed 15-mL Falcon tubes and stored in ziplock bags and frozen (-20 ºC) until analyzed at Oregon State University following recommended practices (Becker et al., 2020).</p>
<p>Samples were analyzed for phosphate, nitrate+nitrite, silicate, and nitrite on a QuAAtro39 AutoAnalyzer (SEAL Analytical) according to standard colorimetric methods (Strickland and Parsons, 1972). All reagents were prepared in dedicated labware with high purity Milli-Q (&gt;18 MΩ cm) water. Working standards were prepared fresh daily in an artificial seawater (ASW; 35 g/L sodium chloride, 0.5 g/L sodium bicarbonate) matrix using calibrated volumetric pipettes.</p>
<p>Nine-point standard curves made in artificial seawater were analyzed at the beginning of each run following a series of reagent blanks. Quality control checks were conducted every twelfth sample using a combination of ASW blanks and standards. The highest standard from the calibration curves was analyzed approximately every twenty samples to check/correct for drift during the runs. Subsamples of reference material for nutrients in seawater (Kanso) were measured in each run (see accompanying Table 1 in supplemental document).</p>
<p>Detection limits for each parameter were determined from three times the standard deviation of replicate analyses of the lowest standards for each parameter. Limits of detection (LOD) were 0.01 µM for phosphate, 0.04 µM for nitrate+nitrite, 0.04 µM for silicate, and 0.01 µM for nitrite. Values below detection are reported as “0” µM with accompanying QC Flag 6. Limits of quantification (LOQ) for each parameter were determined as ten times the standard deviation of replicate analyses of the lowest standards. These are provided in the supplemental document, Table 2, as an alternative estimate of the analytical limitations for these parameters.</p>
<p>Sample analyses for macronutrients 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
EVTNBR
DATETIME_UTC
DATE_UTC
TIME_UTC
DATETIME_EDT
DATE_EDT
TIME_EDT
LATITUDE_SHIP
LONGITUDE_SHIP
PLATFORM
CASTNBR
STNNBR
LATITUDE_MAP
LONGITUDE_MAP
STN_MAP
BTLNBR
DEPTH
TREATMENT
TIMEPOINT
PO4_CONC
PO4_STDEV
PO4_COUNT
PO4_FLAG
NO3_NO2_CONC
NO3_NO2_STDEV
NO3_NO2_COUNT
NO3_NO2_FLAG
SiO4_CONC
SiO4_STDEV
SiO4_COUNT
SiO4_FLAG
NO2_CONC
NO2_STDEV
NO2_COUNT
NO2_FLAG
trace metal clean rosette with a programmable autofire module (Seabird)
X-Niskin bottles
QuAAtro39 AutoAnalyzer (SEAL Analytical)
TM pump sampling system
towfish
theme
None, User defined
sample identification
Cruise identifier
event
ISO_DateTime_UTC
date_utc
time_utc
ISO_DateTime_Local
date_local
time_local
latitude
longitude
cast type
cast
station
bottle
depth
treatment
time_point
reactive phosphorus (PO4)
standard deviation
count
quality flag
nitrate plus nitrite
Silicate (reactive silica)
Nitrite
featureType
BCO-DMO Standard Parameters
CTD Sea-Bird SBE 911plus
Niskin bottle
Nutrient Autoanalyzer
Pump
towed unmanned submersible
instrument
BCO-DMO Standard Instruments
EN704
service
Deployment Activity
Gulf of Mexico near Florida
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: 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
Gulf of Mexico near Florida
-85.9203
-82.5169
26.1234
28.4891
2023-07-01
2023-07-13
Gulf of Mexico/America, West Florida Shelf
0
BCO-DMO catalogue of parameters from Dissolved inorganic macronutrient concentrations in water column samples and incubation experiments from STING II cruise EN704 on R/V Endeavor on the West Florida Shelf in July 2023
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/1000222.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/1000223.rdf
Name: CRUISE_ID
Units: unitless
Description: <p>Research cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000224.rdf
Name: EVTNBR
Units: unitless
Description: <p>Event number; 'nda' for 'no data available' or missing information; 'na' for 'not applicable', used for incubation sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000225.rdf
Name: DATETIME_UTC
Units: unitless
Description: <p>UTC datetime when sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000227.rdf
Name: DATE_UTC
Units: unitless
Description: <p>UTC date when sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000228.rdf
Name: TIME_UTC
Units: unitless
Description: <p>UTC time when sample was collected; 'nda' for 'no data available' or missing information; 'na' for 'not applicable', used for incubation sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000229.rdf
Name: DATETIME_EDT
Units: unitless
Description: <p>Local datetime, in Eastern Daylight Time (EDT) when sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000230.rdf
Name: DATE_EDT
Units: unitless
Description: <p>Local date, in Eastern Daylight Time (EDT) when sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000231.rdf
Name: TIME_EDT
Units: unitless
Description: <p>Local time, in Eastern Daylight Time (EDT) when sample was collected; 'nda' for 'no data available' or missing information; 'na' for 'not applicable', used for incubation sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000232.rdf
Name: LATITUDE_SHIP
Units: decimal degrees
Description: <p>Ship position when sample was collected, positive is North; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000234.rdf
Name: LONGITUDE_SHIP
Units: decimal degrees
Description: <p>Ship position when sample was collected, negative is West; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000236.rdf
Name: PLATFORM
Units: unitless
Description: <p>Sampling system used. TMC CTD = trace metal CTD rosette. FISH = trace metal tow fish. TM PUMP = trace metal pump. INC = incubation</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000237.rdf
Name: CASTNBR
Units: unitless
Description: <p>Cast number; 'na' for 'not applicable', used for TM pump sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000238.rdf
Name: STNNBR
Units: unitless
Description: <p>Station number; 'na' for 'not applicable', used for incubation sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000239.rdf
Name: LATITUDE_MAP
Units: decimal degrees
Description: <p>Position of STN_MAP, positive is North; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000240.rdf
Name: LONGITUDE_MAP
Units: decimal degrees
Description: <p>Position of STN_MAP, negative is West; 'nda' for 'no data available' or missing information</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000241.rdf
Name: STN_MAP
Units: unitless
Description: <p>Station number assigned retroactively to orient data to map and repeat sampling across field efforts; 'na' for 'not applicable', used for incubation sampling events</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000242.rdf
Name: BTLNBR
Units: unitless
Description: <p>CTD rosette bottle number for field samples, or incubation number for incubation samples; 'na' for 'not applicable' used for TM pump and FISH sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000243.rdf
Name: DEPTH
Units: Meters (m)
Description: <p>Sample collection depth below sea surface; 'no data available' or missing information; 'na' for 'not applicable' to that sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000245.rdf
Name: TREATMENT
Units: unitless
Description: <p>Incubation treatment; 'na' for 'not applicable', used for non-incubation samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000246.rdf
Name: TIMEPOINT
Units: unitless
Description: <p>Incubation timepoint; 'na' for 'not applicable', used for non-incubation samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000247.rdf
Name: PO4_CONC
Units: Micromoles per liter (μM)
Description: <p>Concentrations of dissolved phosphate. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000248.rdf
Name: PO4_STDEV
Units: Micromoles per liter (μM)
Description: <p>Standard deviation of replicate phosphate concentration 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/1000249.rdf
Name: PO4_COUNT
Units: unitless
Description: <p>Number of analyses used for PO4_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000250.rdf
Name: PO4_FLAG
Units: unitless
Description: <p>Quality flag for PO4</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000251.rdf
Name: NO3_NO2_CONC
Units: Micromoles per liter (μM)
Description: <p>Concentrations of dissolved nitrate+nitrite. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000252.rdf
Name: NO3_NO2_STDEV
Units: Micromoles per liter (μM)
Description: <p>Standard deviation of replicate nitrate+nitrite concentration 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/1000253.rdf
Name: NO3_NO2_COUNT
Units: unitless
Description: <p>Number of analyses used for NO3_NO2_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000254.rdf
Name: NO3_NO2_FLAG
Units: unitless
Description: <p>Quality flag for NO3_NO2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000255.rdf
Name: SiO4_CONC
Units: Micromoles per liter (μM)
Description: <p>Concentrations of dissolved silicate. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000256.rdf
Name: SiO4_STDEV
Units: Micromoles per liter (μM)
Description: <p>Standard deviation of replicate silicate concentration 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/1000257.rdf
Name: SiO4_COUNT
Units: unitless
Description: <p>Number of analyses used for SiO4_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000258.rdf
Name: SiO4_FLAG
Units: unitless
Description: <p>Quality flag for SiO4</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000259.rdf
Name: NO2_CONC
Units: Micromoles per liter (μM)
Description: <p>Concentrations of dissolved nitrite. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000260.rdf
Name: NO2_STDEV
Units: Micromoles per liter (μM)
Description: <p>Standard deviation of replicate dissolved nitrite concentration 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/1000261.rdf
Name: NO2_COUNT
Units: unitless
Description: <p>Number of analyses used for NO2_CONC. 'na' for 'not applicable' used when no sample was collected for this parameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1000262.rdf
Name: NO2_FLAG
Units: unitless
Description: <p>Quality flag for NO2</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/997792/data/download
download
onLine
dataset
<p>Water column samples were collected in July 2023 aboard the R/V Endeavor using a trace metal clean rosette (SeaBird) outfitted with 12-L Niskin-X samplers (Ocean Test Equipment), a trace metal clean pump system, or a custom surface pump “towfish” system (Mellett and Buck, 2020). Seawater samples for macronutrient analysis were filtered through 0.2 µm Pall Acropak Super membrane filter capsules, collected in acid-cleaned and triple-rinsed 15-mL Falcon tubes, stored in ziplock bags and frozen (-20 ºC) until analyzed at Oregon State University following recommended best practices (Becker et al., 2020).</p>
<p>Samples from seawater incubation experiments were filtered through consecutive acid-cleaned 5 µm and 0.4 µm polycarbonate track-etched (PCTE, Whatman) filters in a dual stage Teflon filter rig (Savillex) on a custom acrylic tower. Filtrate was collected in acid-cleaned and triple-rinsed 15-mL Falcon tubes and stored in ziplock bags and frozen (-20 ºC) until analyzed at Oregon State University following recommended practices (Becker et al., 2020).</p>
<p>Samples were analyzed for phosphate, nitrate+nitrite, silicate, and nitrite on a QuAAtro39 AutoAnalyzer (SEAL Analytical) according to standard colorimetric methods (Strickland and Parsons, 1972). All reagents were prepared in dedicated labware with high purity Milli-Q (&gt;18 MΩ cm) water. Working standards were prepared fresh daily in an artificial seawater (ASW; 35 g/L sodium chloride, 0.5 g/L sodium bicarbonate) matrix using calibrated volumetric pipettes.</p>
<p>Nine-point standard curves made in artificial seawater were analyzed at the beginning of each run following a series of reagent blanks. Quality control checks were conducted every twelfth sample using a combination of ASW blanks and standards. The highest standard from the calibration curves was analyzed approximately every twenty samples to check/correct for drift during the runs. Subsamples of reference material for nutrients in seawater (Kanso) were measured in each run (see accompanying Table 1 in supplemental document).</p>
<p>Detection limits for each parameter were determined from three times the standard deviation of replicate analyses of the lowest standards for each parameter. Limits of detection (LOD) were 0.01 µM for phosphate, 0.04 µM for nitrate+nitrite, 0.04 µM for silicate, and 0.01 µM for nitrite. Values below detection are reported as “0” µM with accompanying QC Flag 6. Limits of quantification (LOQ) for each parameter were determined as ten times the standard deviation of replicate analyses of the lowest standards. These are provided in the supplemental document, Table 2, as an alternative estimate of the analytical limitations for these parameters.</p>
<p>Sample analyses for macronutrients 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. [See accompanying Table 1 in supplemental document for certified reference material results 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 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. Detection limits for each parameter are provided in the methods, and calculated limits of detection and limits of quantification are provided in the supplemental document, Table 2].</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 data from BCO-DMO_Buck_STING-II_Nutrients_260206.csv with missing values defined as "", "nd", "na", and "nda"
- Combined DATE_UTC and TIME_UTC fields (format %m/%d/%y and %H:%M) into new DATETIME_UTC column formatted as %Y-%m-%dT%H:%MZ in UTC
- Combined DATE_EST and TIME_EST fields (format %m/%d/%y and %H:%M) into new DATETIME_EDT column formatted as %Y-%m-%dT%H:%M in America/New_York timezone
- Reordered columns into specified sequence with STING_ID through NO2_FLAG
- Converted DATE_UTC field (format %m/%d/%y) to DATE_UTC column formatted as %Y-%m-%d in UTC
- Converted DATE_EST field (format %m/%d/%y) to DATE_EST column formatted as %Y-%m-%d in America/New_York timezone
- Renamed DATE_EST to DATE_EDT and TIME_EST to TIME_EDT
- Output written to 997792_v1_sting_ii_nutrients.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 rosette with a programmable autofire module (Seabird)
trace metal clean rosette with a programmable autofire module (Seabird)
PI Supplied Instrument Name: trace metal clean rosette with a programmable autofire module (Seabird) PI Supplied Instrument Description:Rosette: 12-L trace metal clean modified X-Niskin bottles (Ocean Test Equipment) mounted on a trace metal clean rosette with a programmable autofire module (Seabird) and deployed on 1/4” 12-strand Spectra synthetic line to collect depth profile seawater samples. Instrument Name: CTD Sea-Bird SBE 911plus Instrument Short Name:CTD SBE 911plus Instrument Description: The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/
X-Niskin bottles
X-Niskin bottles
PI Supplied Instrument Name: X-Niskin bottles PI Supplied Instrument Description:Rosette: 12-L trace metal clean modified X-Niskin bottles (Ocean Test Equipment) mounted on a trace metal clean rosette with a programmable autofire module (Seabird) and deployed on 1/4” 12-strand Spectra synthetic line to collect depth profile seawater samples. 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/
QuAAtro39 AutoAnalyzer (SEAL Analytical)
QuAAtro39 AutoAnalyzer (SEAL Analytical)
PI Supplied Instrument Name: QuAAtro39 AutoAnalyzer (SEAL Analytical) PI Supplied Instrument Description:Analyses: QuAAtro39 AutoAnalyzer (SEAL Analytical) was used to measure macronutrient concentrations in seawater samples. Instrument Name: Nutrient Autoanalyzer Instrument Short Name:Nutrient Autoanalyzer Instrument Description: Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB04/
TM pump sampling system
TM pump sampling system
PI Supplied Instrument Name: TM pump sampling system PI Supplied Instrument Description:TM pump sampling system: Acid-cleaned ½” PTFE tubing was deployed on 1/4” 12-strand Spectra synthetic line to collect surface and water column depth profile seawater samples at stations with water depth < 50 m; seawater was pumped on board using a second Almatec E15TTT Double PTFE Diaphragm Pump. 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
towfish
towfish
PI Supplied Instrument Name: towfish PI Supplied Instrument Description:Towfish: Seawater samples were collected with a custom surface sampling system, “towfish” (Mellett and Buck 2020), comprised of acid cleaned Bev-A-Line-IV tubing and an Almatec E15TTT Double PTFE Diaphragm Pump. Instrument Name: towed unmanned submersible Instrument Short Name:towed unmanned submersible Instrument Description: A vehicle towed by rigid cable through the water column at fixed or varying depth with no propulsion and no human operator (e.g. Towfish, Scanfish, UOR, SeaSoar).
Cruise: EN704
EN704
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel
EN704
Angela N. Knapp
Florida State University
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel