http://lod.bco-dmo.org/id/dataset/959247
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
2025-04-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Pore water data from sediment cores collected from R/V Oceanus cruise OC1906A and R/V Sikuliaq cruise SKQ202016S off the coast of California in 2019 and 2020
2025-04-16
publication
2025-04-16
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-05-06
publication
https://doi.org/10.26008/1912/bco-dmo.959247.1
David J. Burdige
Old Dominion 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: Burdige, D. J. (2025) Pore water data from sediment cores collected from R/V Oceanus cruise OC1906A and R/V Sikuliaq cruise SKQ202016S off the coast of California in 2019 and 2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-04-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.959247.1 [access date]
California pore water data Dataset Description: Methods and Sampling: <p><strong>Field sampling methods:</strong><br />
Sediment cores were collected using a gravity corer and a multicorer on both cruises. Following recovery, the gravity cores were secured horizontally on the ship's deck and sampled from the bottom of the core upwards. This was done by sequentially removing 10-centimeter (cm) sediment intervals by cutting the core liner using a pipe cutter. Freshly exposed sediment was immediately subsampled using 3- to 60-milliliter (mL) push corers made of plastic syringes with the tips removed. All subcores were immediately transferred to an N2 filled glove bag in a refrigerated van for further processing. Multi cores were transferred to a refrigerated van immediately upon recovery, and within 12 hours were either sampled using pre-cleaned Rhizon samplers (Seeberg-Elverfeldt et al., 2005) or extruded and sectioned in an N2 atmosphere at intervals of 0.5 to 2 cm depth over the depth of the core (generally 30 to 40 cm total length).</p>
<p>While it is possible to recover intact sediment-water interfaces using multi-corers, loss of surface sediments is typical during gravity coring, making it impossible to directly quantify absolute depths below the sediment-water interface in a gravity core. We therefore determined absolute depths of sediment sample intervals in gravity cores by aligning DIC, SO42-, NH4+, and porosity gravity core profiles to multicore profiles from the same site (Berelson et al., 2005; Iversen and Jørgensen, 1985; Komada et al., 2016).</p>
<p>Sediment aliquots from both gravity cores and sectioned multi cores were centrifuged at 6 degrees Celsius (°C) in polycarbonate tubes, and the supernatant was collected into all-polypropylene syringes with stainless steel needles. Rhizon samples were also collected in all poly-propylene syringes. All pore water samples were then filtered through disposable 0.2 micrometer (µm) nylon filters with 0.7 µm GF/F pre-filters (Whatman 6870-2502). The first 3 mL were discarded. To minimize the DOC blank, 100 mL of UV-irradiated deionized water (DIWUV) were pushed through each disposable filter prior to use.</p>
<p>Pore water samples for DIC concentration were placed in 2-mL serum vials without headspace, immediately crimp sealed, and refrigerated until analysis (Burdige and Homstead, 1994). Alkalinity samples were collected in 3-mL plastic syringes, sealed with 3-way stopcocks, and titrated on-board the ship within 24 hours. Titrated alkalinity samples were placed in snap cap vials and later used for sulfate and ammonium determinations.</p>
<p>Pore water samples for DOC concentration were acidified to pH &lt; 2 with 6 N trace metal grade HCl and flame-sealed in pre-combusted glass ampules under a stream of UHP N2 gas and refrigerated.</p>
<p>Pore water samples for total dissolved sulfide (∑H2S = [H2S] + [HS-] + [S2-]) analysis were fixed onboard ship by adding pore water to an N2-degassed solution containing 4 mL of 5 millimolar (mM) ZnCl2 and and 4 mL of 10 mM NaOH (Ingvorsen and Jørgensen, 1979) in a 10 mL serum bottle. At the basic pH of this "fixing" solution, all dissolved inorganic sulfide precipitates out as ZnS. The headspace was then degassed with N2 and the bottle was crimp sealed with plug-style stoppers and refrigerated. In SBB pore water samples near the sediment surface (upper 10 cm) where sulfide levels are low, 1 mL of pore water was added to the fixing solution, whereas for deeper samples (with higher sulfide levels) 0.1 mL pore water was added to the fixing solution. In station D and K pore water samples, 1-2 mL pore water was added to the fixing solution. ∑H2S was not determined in Cat pore water samples.</p>
<p>Bottom-water samples were collected from 10 meters (m) above the seafloor with a Go Flo bottle. All tools and parts used in all sampling were first cleaned with household dish soap, then acid rinsed (exclusive of metal parts). Plasticware was air dried.</p>
<p><strong>Analytical methods:</strong><br />
Alkalinity samples were titrated on-board the ship by automated Gran titration (Burdige et al., 2010). pH values listed here are the initial pH values from the titrations and are expressed on the NBS scale. Concentrations of DIC and ammonium (SBB and Cat samples) were analyzed by flow injection analysis (Hall and Aller, 1992; Lustwerk and Burdige, 1995). Ammonium (stations D and K) was determined by the fluorometric technique of Holmes et al. (1999). Sulfate was determined by ion chromatography with conductivity detection (Komada et al., 2016). ∑H2S was determined spectrophotometrically using the methylene blue technique (Cline, 1969). All reagents were added directly to the serum bottle containing the ZnS suspension (see the section above for details).</p>
<p>Concentrations of DOC were determined by high-temperature combustion using a Shimadzu TOC-V total carbon analyzer (Burdige and Gardner, 1998). DOC consensus reference materials (D. Hansell, RSMAS) were run along with samples, and measured values agreed to within &lt;10% with the reported consensus values.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1756669 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1756669
completed
David J. Burdige
Old Dominion University
757-683-4930
Dept. of Ocean, Earth and Atmospheric Sciences
Norfolk
VA
23529
USA
dburdige@odu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Ship
Cruise_ID
St_ID
date
lat
long
SA_ID
Core
Samp
Depth
err
Alk
pH
DIC
Sulfate
Sulfide
NH4
DOC
Agilent model 8453 UV-Vis Spectrophotometer
Centrifuge
Dionex CDM-II conductivity detector
GO-Flo sampling bottle
"Big Bertha" gravity corer (built at Oregon State University)
Ocean Instruments Mult-Corer
Rhizon samplers
Shimadzu TOC-V total carbon analyzer
Thermo-Fisher Dionex ICS-5000 ion chromatograph
Metrohm automatic titrator (model 785 DMP Titrino)
theme
None, User defined
ship
Cruise identfier
station
date
latitude
longitude
sample identification
instrument
depth core
total alkalinity (TA)
pH
dissolved inorganic Carbon
sulfate
sulfide
Ammonium
dissolved organic Carbon
featureType
BCO-DMO Standard Parameters
Agilent 8453 UV-visible spectrophotometer
Centrifuge
Conductivity Meter
GO-FLO Bottle
Gravity Corer
Multi Corer
Sediment Porewater Sampler
Shimadzu TOC-V Analyzer
Thermo Fisher Scientific Dionex ICS-5000 ion chromatography (IC) system
Titrator
instrument
BCO-DMO Standard Instruments
OC1906A
SKQ202016S
service
Deployment Activity
California coast
California Coast
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: Peptide Deamination as a Source of Refractory Dissolved Organic Matter in Marine Sediments
https://osprey.bco-dmo.org/project/906864
Collaborative Research: Peptide Deamination as a Source of Refractory Dissolved Organic Matter in Marine Sediments
<p><strong>NSF Award Abstract:</strong><br />
Dissolved organic matter (DOM) in the ocean is one of the largest carbon reservoirs on Earth. Much of this DOM is highly resistant to degradation (refractory) and aged, but the nature and reasons behind the accumulation of refractory DOM in the ocean is one of the unresolved mysteries of the marine carbon cycle. While marine sediments have been shown to be a globally important source of DOM to the ocean, the connection between sediment DOM dynamics and the oceanic DOM cycle remains elusive, because information is lacking on the molecular composition and reactivity of pore water DOM. To fill this knowledge gap, this project will address the question of how refractory DOM is produced in sediments and the fate of benthic DOM in the water column. The research will focus on the relationship between protein/peptide dynamics and sediment DOM cycling, examining peptide deamination as an important pathway for the production of refractory and 14C-depleted DOM in continental margin sediments. These objectives will be met through a combination of geochemical profiling of sediment cores collected across a range of redox conditions, and long-term sediment incubation studies conducted under controlled laboratory conditions. At the heart of this proposed work is structural elucidation and quantification of intact and deaminated peptides in pore-water DOM using state-of-the-art analytical techniques. The study will help better understand how the present-day carbon cycle operates, as well as how it may respond in the future. The proposed work will integrate research and education using several approaches. All PIs routinely integrate their research into their classes, which range from introductory-undergraduate to advanced-graduate courses and will continue to do so here. All three PIs are also committed to engaging women and underrepresented minority students.</p>
<p>Marine sediments are a globally important source of dissolved organic matter (DOM) to the ocean. However, the connection between sediment DOM dynamics and the oceanic DOM cycle remains elusive because information about the molecular composition and reactivity of pore water DOM is lacking. To help fill this knowledge gap, this project will address the question of how refractory DOM is produced in sediments and the fate of the benthic DOM flux in the water column. The proposed study explores a novel and potentially transformative idea that deamination of peptides in sediments is a source of refractory and 14C-depleted DOM in seawater. This idea is consistent not only with the fact that the majority of seawater dissolved organic nitrogen occurs in amide form, but also with recent reports about the widespread occurrence of nitrogen-bearing formulas in deep-sea refractory DOM. The central hypothesis will be tested through a unique blend of bottom-up (molecular level DOM analyses) and top-down (bulk-level elemental and isotopic analyses, and numerical modeling) approaches. This work will involve a combination of geochemical profiling of sediment cores collected across a range of redox conditions, and long-term sediment incubation studies conducted under controlled laboratory conditions. At the heart of the proposed work is structural elucidation and quantification of intact and deaminated peptides in pore-water DOM using a state-of-the-art liquid chromatography-mass spectrometry system (ultra-high performance liquid chromatography coupled to an Orbitrap Fusion Tribrid Mass Spectrometer), which is expected to provide an unprecedented wealth of molecular-level information about pore water DOM. The proposed work will lead to an improved mechanistic understanding of organic matter decomposition and benthic DOM cycling and shed light on the connections between the modern-day oceanic and sedimentary carbon and nitrogen cycles as they relate to the formation of refractory DOM.</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>
Peptide Deamination
largerWorkCitation
project
eng; USA
oceans
California coast; California Coast
-122.1861
-118.6
33.3005
36.1126
2019-06-23
2020-12-09
California Borderland
0
BCO-DMO catalogue of parameters from Pore water data from sediment cores collected from R/V Oceanus cruise OC1906A and R/V Sikuliaq cruise SKQ202016S off the coast of California in 2019 and 2020
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/959258.rdf
Name: Ship
Units: unitless
Description: <p>Ship used: Oc = R/V Oceanus; Sk = R/V Sikuliaq</p>
http://lod.bco-dmo.org/id/dataset-parameter/959259.rdf
Name: Cruise_ID
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/959260.rdf
Name: St_ID
Units: unitless
Description: <p>Station ID: SBB = Santa Barbara Basin; Cat = Catalina Basin; K = station K; D = station D</p>
http://lod.bco-dmo.org/id/dataset-parameter/959261.rdf
Name: date
Units: unitless
Description: <p>Date core was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/959262.rdf
Name: lat
Units: decimal degrees
Description: <p>Station latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/959263.rdf
Name: long
Units: decimal degrees
Description: <p>Station longitude; negative values = West</p>
http://lod.bco-dmo.org/id/dataset-parameter/959264.rdf
Name: SA_ID
Units: unitless
Description: <p>Individual sample ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/959265.rdf
Name: Core
Units: unitless
Description: <p>Type of core used to collect the sample: H = hydrocast (bottom water samples); M = multi-core; G = gravity core</p>
http://lod.bco-dmo.org/id/dataset-parameter/959266.rdf
Name: Samp
Units: unitless
Description: <p>How the sample was collected: GF = GO-Flo bottle (bottom water samples); C = centrifugation; R = rhizon samplers</p>
http://lod.bco-dmo.org/id/dataset-parameter/959267.rdf
Name: Depth
Units: centimeters (cm)
Description: <p>Depth of the sediment sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/959268.rdf
Name: err
Units: centimeters (cm)
Description: <p>half-depth of the sampling interval; no data for GF and R samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/959269.rdf
Name: Alk
Units: millimolar (mM)
Description: <p>concentration of pore water alkalinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/959270.rdf
Name: pH
Units: unitless
Description: <p>pore water pH (NBS scale)</p>
http://lod.bco-dmo.org/id/dataset-parameter/959271.rdf
Name: DIC
Units: millimolar (mM)
Description: <p>concentration of pore water dissolved inorganic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/959272.rdf
Name: Sulfate
Units: millimolar (mM)
Description: <p>concentration of pore water sulfate</p>
http://lod.bco-dmo.org/id/dataset-parameter/959273.rdf
Name: Sulfide
Units: micromolar (uM)
Description: <p>concentration of pore water total dissolved H2S (?H2S)</p>
http://lod.bco-dmo.org/id/dataset-parameter/959274.rdf
Name: NH4
Units: micromolar (uM)
Description: <p>concentration of pore water ammonium</p>
http://lod.bco-dmo.org/id/dataset-parameter/959275.rdf
Name: DOC
Units: millimolar (mM)
Description: <p>concentration of pore water dissolved organic carbon</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
24029
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/901391a4-4f2f-44e5-b479-e18e05176ddb/content
download
https://doi.org/10.26008/1912/bco-dmo.959247.1
download
onLine
dataset
<p><strong>Field sampling methods:</strong><br />
Sediment cores were collected using a gravity corer and a multicorer on both cruises. Following recovery, the gravity cores were secured horizontally on the ship's deck and sampled from the bottom of the core upwards. This was done by sequentially removing 10-centimeter (cm) sediment intervals by cutting the core liner using a pipe cutter. Freshly exposed sediment was immediately subsampled using 3- to 60-milliliter (mL) push corers made of plastic syringes with the tips removed. All subcores were immediately transferred to an N2 filled glove bag in a refrigerated van for further processing. Multi cores were transferred to a refrigerated van immediately upon recovery, and within 12 hours were either sampled using pre-cleaned Rhizon samplers (Seeberg-Elverfeldt et al., 2005) or extruded and sectioned in an N2 atmosphere at intervals of 0.5 to 2 cm depth over the depth of the core (generally 30 to 40 cm total length).</p>
<p>While it is possible to recover intact sediment-water interfaces using multi-corers, loss of surface sediments is typical during gravity coring, making it impossible to directly quantify absolute depths below the sediment-water interface in a gravity core. We therefore determined absolute depths of sediment sample intervals in gravity cores by aligning DIC, SO42-, NH4+, and porosity gravity core profiles to multicore profiles from the same site (Berelson et al., 2005; Iversen and Jørgensen, 1985; Komada et al., 2016).</p>
<p>Sediment aliquots from both gravity cores and sectioned multi cores were centrifuged at 6 degrees Celsius (°C) in polycarbonate tubes, and the supernatant was collected into all-polypropylene syringes with stainless steel needles. Rhizon samples were also collected in all poly-propylene syringes. All pore water samples were then filtered through disposable 0.2 micrometer (µm) nylon filters with 0.7 µm GF/F pre-filters (Whatman 6870-2502). The first 3 mL were discarded. To minimize the DOC blank, 100 mL of UV-irradiated deionized water (DIWUV) were pushed through each disposable filter prior to use.</p>
<p>Pore water samples for DIC concentration were placed in 2-mL serum vials without headspace, immediately crimp sealed, and refrigerated until analysis (Burdige and Homstead, 1994). Alkalinity samples were collected in 3-mL plastic syringes, sealed with 3-way stopcocks, and titrated on-board the ship within 24 hours. Titrated alkalinity samples were placed in snap cap vials and later used for sulfate and ammonium determinations.</p>
<p>Pore water samples for DOC concentration were acidified to pH &lt; 2 with 6 N trace metal grade HCl and flame-sealed in pre-combusted glass ampules under a stream of UHP N2 gas and refrigerated.</p>
<p>Pore water samples for total dissolved sulfide (∑H2S = [H2S] + [HS-] + [S2-]) analysis were fixed onboard ship by adding pore water to an N2-degassed solution containing 4 mL of 5 millimolar (mM) ZnCl2 and and 4 mL of 10 mM NaOH (Ingvorsen and Jørgensen, 1979) in a 10 mL serum bottle. At the basic pH of this "fixing" solution, all dissolved inorganic sulfide precipitates out as ZnS. The headspace was then degassed with N2 and the bottle was crimp sealed with plug-style stoppers and refrigerated. In SBB pore water samples near the sediment surface (upper 10 cm) where sulfide levels are low, 1 mL of pore water was added to the fixing solution, whereas for deeper samples (with higher sulfide levels) 0.1 mL pore water was added to the fixing solution. In station D and K pore water samples, 1-2 mL pore water was added to the fixing solution. ∑H2S was not determined in Cat pore water samples.</p>
<p>Bottom-water samples were collected from 10 meters (m) above the seafloor with a Go Flo bottle. All tools and parts used in all sampling were first cleaned with household dish soap, then acid rinsed (exclusive of metal parts). Plasticware was air dried.</p>
<p><strong>Analytical methods:</strong><br />
Alkalinity samples were titrated on-board the ship by automated Gran titration (Burdige et al., 2010). pH values listed here are the initial pH values from the titrations and are expressed on the NBS scale. Concentrations of DIC and ammonium (SBB and Cat samples) were analyzed by flow injection analysis (Hall and Aller, 1992; Lustwerk and Burdige, 1995). Ammonium (stations D and K) was determined by the fluorometric technique of Holmes et al. (1999). Sulfate was determined by ion chromatography with conductivity detection (Komada et al., 2016). ∑H2S was determined spectrophotometrically using the methylene blue technique (Cline, 1969). All reagents were added directly to the serum bottle containing the ZnS suspension (see the section above for details).</p>
<p>Concentrations of DOC were determined by high-temperature combustion using a Shimadzu TOC-V total carbon analyzer (Burdige and Gardner, 1998). DOC consensus reference materials (D. Hansell, RSMAS) were run along with samples, and measured values agreed to within &lt;10% with the reported consensus values.</p>
Specified by the Principal Investigator(s)
- Imported original file "pore water data.txt" into the BCO-DMO system.
- Flagged "nd" as a missing data value (missing data are empty/blank in the final csv file).
- Converted Date column to YYYY-mm-dd format.
- Added cruise ID column.
- Saved final file as "959247_v1_pore_water.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
Agilent model 8453 UV-Vis Spectrophotometer
Agilent model 8453 UV-Vis Spectrophotometer
PI Supplied Instrument Name: Agilent model 8453 UV-Vis Spectrophotometer PI Supplied Instrument Description:used to measure total dissolved sulfide Instrument Name: Agilent 8453 UV-visible spectrophotometer Instrument Short Name:Agilent 8453 Instrument Description: The Agilent 8453 spectrophotometer is a laboratory optical instrument for chemical analysis to extract spectral information in the ultraviolet (UV) and visible light. The instrument radiates a single light beam by optically combining two source lamps: a deuterium-discharge lamp for the UV wavelength range and a tungsten lamp for the visible and short wave near-infrared (SWNIR) wavelength range. The beam passes through the sample, is focused and dispersed within the spectrograph lens, slit and grating, and reaches the diode array in the form of a spectral image. The diode array samples a wavelength range of 190 to 1100 nm at a mean sampling interval of 0.9 nm. The nominal spectral slit width is 1 nm and the stray light is less than 0.03%.
Centrifuge
Centrifuge
PI Supplied Instrument Name: Centrifuge Instrument Name: Centrifuge Instrument Short Name: Instrument Description: A machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids of different densities (e.g., cream from milk) or liquids from solids.
Dionex CDM-II conductivity detector
Dionex CDM-II conductivity detector
PI Supplied Instrument Name: Dionex CDM-II conductivity detector PI Supplied Instrument Description:used to measure dissolved ammonium and dissolved inorganic carbon Instrument Name: Conductivity Meter Instrument Short Name:Conductivity Meter Instrument Description: Conductivity Meter - An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. Commonly used in hydroponics, aquaculture and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.
GO-Flo sampling bottle
GO-Flo sampling bottle
PI Supplied Instrument Name: GO-Flo sampling bottle PI Supplied Instrument Description:used to collect bottom water samples Instrument Name: GO-FLO Bottle Instrument Short Name:GO-FLO Instrument Description: GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/30/
"Big Bertha" gravity corer (built at Oregon State University)
"Big Bertha" gravity corer (built at Oregon State University)
PI Supplied Instrument Name: "Big Bertha" gravity corer (built at Oregon State University) PI Supplied Instrument Description:used to collect gravity cores Instrument Name: Gravity Corer Instrument Short Name:Gravity Corer Instrument Description: The gravity corer allows researchers to sample sediment layers at the bottom of lakes or oceans. The coring device is deployed from the ship and gravity carries it to the seafloor. (http://www.whoi.edu/instruments/viewInstrument.do?id=1079). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/51/
Ocean Instruments Mult-Corer
Ocean Instruments Mult-Corer
PI Supplied Instrument Name: Ocean Instruments Mult-Corer PI Supplied Instrument Description:used to collect sediment cores Instrument Name: Multi Corer Instrument Short Name:Multi Corer Instrument Description: The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/51/
Rhizon samplers
Rhizon samplers
PI Supplied Instrument Name: Rhizon samplers PI Supplied Instrument Description:used for collecting pore water samples from multicore extrusions and other processes Instrument Name: Sediment Porewater Sampler Instrument Short Name: Instrument Description: A device that collects samples of pore water from various horizons below the seabed.
Shimadzu TOC-V total carbon analyzer
Shimadzu TOC-V total carbon analyzer
PI Supplied Instrument Name: Shimadzu TOC-V total carbon analyzer PI Supplied Instrument Description:used to measure dissolved organic carbon Instrument Name: Shimadzu TOC-V Analyzer Instrument Short Name:Shimadzu TOC-V Instrument Description: A Shimadzu TOC-V Analyzer measures DOC by high temperature combustion method. Community Standard Description: http://onto.nerc.ac.uk/CAST/124
Thermo-Fisher Dionex ICS-5000 ion chromatograph
Thermo-Fisher Dionex ICS-5000 ion chromatograph
PI Supplied Instrument Name: Thermo-Fisher Dionex ICS-5000 ion chromatograph PI Supplied Instrument Description:used to measure sulfate Instrument Name: Thermo Fisher Scientific Dionex ICS-5000 ion chromatography (IC) system Instrument Short Name:ICS-5000 Instrument Description: The Thermo Fisher Scientific Dionex ICS-5000 ion chromatography (IC) system is an ion chromatography system that offers a full range of reagent-free components. This instrument can be configured to use single or dual pumps. The single-channel Dionex ICS-5000 can be configured to run capillary, microbore or standard bore IC applications. A dual Dionex ICS-5000 system can be configured with any combination of these applications. This system uses an eluent generator (EG) to generate high purity acid or base eluents from deionized water, in the amount and concentration needed for sample analysis, configurable for single or dual channel operation. Eluent regeneration may also be used without an EG - eluent regeneration uses the suppressor to reconstitute the starting eluent, allowing use of a single 4-liter bottle of eluent for up to four weeks. An eluent organizer (EO) module is used to contain eluent spills and leaks. The ICS-5000 detector/chromatography module (DC) can accommodate components for two channels, plumbed either serially or in parallel, in a temperature-controlled environment. Available DC components include conductivity detectors, electrochemical detectors, injection valves, switching valves, guard and separator columns, suppressors, and Dionex IC cubes or ICS-5000 Automation Manager. Detectors outside of the DC include a Dionex ICS Series Photodiode Array Detector (PDA); Dionex ICS Series Variable Wavelength Detector (VWD); MSQ Plus Mass Spectrometer.
Metrohm automatic titrator (model 785 DMP Titrino)
Metrohm automatic titrator (model 785 DMP Titrino)
PI Supplied Instrument Name: Metrohm automatic titrator (model 785 DMP Titrino) PI Supplied Instrument Description:used to measure alkalinity and initial pH Instrument Name: Titrator Instrument Short Name:Titrator Instrument Description: Titrators are instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB12/
Cruise: OC1906A
OC1906A
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC1906A
Hussain Abdulla
Oregon State University
Cruise: SKQ202016S
SKQ202016S
R/V Sikuliaq
Community Standard Description
International Council for the Exploration of the Sea
R/V Sikuliaq
vessel
SKQ202016S
Hussain Abdulla
Texas A&M University
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
R/V Sikuliaq
Community Standard Description
International Council for the Exploration of the Sea
R/V Sikuliaq
vessel