http://lod.bco-dmo.org/id/dataset/770638
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
2019-06-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016
2019-06-21
publication
2019-06-21
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-06-21
publication
https://doi.org/10.1575/1912/bco-dmo.770638.1
Andrew Thurber
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: Thurber, A. (2019) Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-06-21 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.770638.1 [access date]
Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site Dataset Description: <p>Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site</p> Methods and Sampling: <p>Sediment samples: Sediment cores were collected from the Cinder Cones site including a methane seep habitat and vertically sectioned into identified intervals at either 3cm or 1cm intervals depending on the analysis. To quantify methane from sediment plugs, subcores were taken vertically via a syringe with the end cut off to sample 3 cm3 of sediment.&nbsp; The subcores were preserved in 2ml of 5M NaOH in a serum bottle and caped with a butyl stopper for later analysis. It was stored and shipped upside down. Large grain size led to rapid dewatering of the cores making the concentrations likely conservative estimates of the methane (i.e. the is a chance some of the porewater was lost during sampling).&nbsp; For 0-1 cm sediment plugs, a core was vertically sectioned and frozen at -80oC until later analysis.</p>
<p>Porewater samples:&nbsp; Pore water was sampled in situ by placing a vertical barrier in the sediment, excavating one side and inserting a Rhyzon filter (0.2 um) into the intact sediment on the opposite side of the excavation. 1 ml of porewater was discarded as a rinse and then 5ml of pore water was extracted. These were taken at 2 cm intervals starting at 1 cm below the sediment surface to 5cm.&nbsp; 3ml were preserved in serum bottles with 2ml of 5M NaOH for later methane analysis. 1 ml was filtered to remove particles &gt;0.2 um and frozen for ion analysis and 1ml was preserved with 0.25ml of 0.05 M Zinc acetate for hydrogen sulfide concentration for Spectrophotometric analysis following Cline (1969).&nbsp;&nbsp;</p>
<p>Sampling and analytical procedures:&nbsp;&nbsp;<br />
Methane: Samples were kept stored cold and inverted for both porewater and sediment plug sampling approaches for methane.&nbsp; Headspace from each of the serum vials was injected into a Gas Chromatograph with Flame Ionization Detector (GC-FID) after a standard curve was generated based on known standards increasing from 10 to 1000 ppm and the same injection volume (between 50 and 100 ul) as the headspace of the samples.&nbsp; Adjusted r2 of the calibration curve was&nbsp; 1.0.&nbsp; Response area was measured using “Peak Simple” software.</p>
<p>Methane Flux: Methane flux was measured in 2016 through the deployment of benthic flux chambers. Chambers were 10cm i.d. cores with a cap containing a septa sealed hole for sampling and an o-ring seal around the cap. The chambers were sealed with the caps after the cores were inserted into the sediment to ensure minimal disturbance to the system. Chambers were not continually stirred but were stirred by using magnetic propeller system that allowed gentle agitation prior to each sample collection. Samples were taken on 12-hour intervals to quantify that release of methane through syringe sampling through the septa; at no point were the chambers opened</p>
Funding provided by NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) Award Number: OPP-1642570 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1642570
completed
Andrew Thurber
Oregon State University
541-737-4500
athurber@ucsb.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Site_name
Habitat
Collection_Date
Date
geo_loc_lat
geo_loc_long
Water_depth
Replicate
Sediment_Depth
sampling_approach
Fluoride
Acetate
Formate
Chloride
Nitrite
Bromide
Sulfate
Thiosulfate
Lithium
Sodium
Ammonium
Potassium
Magnesium
Calcium
Sulfide
Methane_porewater
Methane_sediment
d2HVSMOW
d13CVPDB
Methane_Flux
HP 5890 Gas Chromatograph
Thermo Delta V Plus isotope ratio mass spectrometer
theme
None, User defined
site
site description
No BCO-DMO term
date
latitude
longitude
depth
replicate
depth core
sample description
chloride
Nitrite
bromides
sulfate
Lithium
Sodium
Ammonium
potassium
Magnesium
Calcium
sulfide
methane
featureType
BCO-DMO Standard Parameters
Gas Chromatograph
Isotope-ratio 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.
EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat
https://osprey.bco-dmo.org/project/709615
EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat
<p>NSF abstract:</p>
<p>Methane is a potent greenhouse gas that is naturally emitted into the oceans by geologic seeps and microbial production. Based on studies of persistent deep-sea seeps at mid- and northern latitudes, researchers have learned that bacteria and archaea can create a "sediment filter" that oxidizes methane prior to its release. Antarctica is thought to contain large reservoirs of organic carbon buried beneath its ice which could a quantity of methane equivalent to all of the permafrost in the Arctic and yet we know almost nothing about the methane oxidizing microbes in this region. How these microbial communities develop and potentially respond to fluctuations in methane levels is an under-explored avenue of research. A bacterial mat was recently discovered at 78 degrees south, suggesting the possible presence of a methane seep, and associated microbial communities. This project will explore this environment in detail to assess the levels and origin of methane, and the nature of the microbial ecosystem present.</p>
<p>An expansive bacterial mat appeared and/or was discovered at 78 degrees south in 2011. This site, near McMurdo Station Antarctica, has been visited since the mid-1960s, but this mat was not observed until 2011. The finding of this site provides an unusual opportunity to study an Antarctic marine benthic habitat with active methane cycling and to examine the dynamics of recruitment and community succession of seep fauna including bacteria, archaea, protists and metazoans. This project will collect the necessary baseline data to facilitate further studies of Antarctic methane cycling. The concentration and source of methane will be determined at this site and at potentially analogous sites in McMurdo Sound. In addition to biogeochemical characterization of the sites, molecular analysis of the microbial community will quantify the time scales on which bacteria and archaea respond to methane input and provide information on rates of community development and succession in the Southern Ocean. Project activities will facilitate the training of at least one graduate student and results will be shared at both local and international levels. A female graduate student will be mentored as part of this project and data collected will form part of her dissertation. Lectures will be given in K-12 classrooms in Oregon to excite students about polar science. National and international audiences will be reached through blogs and presentations at a scientific conference. The PI's previous blogs have been used by K-12 classrooms as part of their lesson plans and followed in over 65 countries.</p>
Cinder Cone Seep
largerWorkCitation
project
eng; USA
oceans
-166.666
-166.666
-77.8
-77.8
2016-11-07
2016-11-15
Ross Sea, Antarctica (78 S, 166 E)
0
BCO-DMO catalogue of parameters from Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016
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/770644.rdf
Name: Site_name
Units: unitless
Description: <p>Name of dive location on Ross Island Antarctica</p>
http://lod.bco-dmo.org/id/dataset-parameter/770645.rdf
Name: Habitat
Units: unitless
Description: <p>Whether the sample was from an area of active methane seepage or sampled adjacent to this habitat.</p>
http://lod.bco-dmo.org/id/dataset-parameter/770646.rdf
Name: Collection_Date
Units: unitless
Description: <p>Date sample was collected as Excel integer representation</p>
http://lod.bco-dmo.org/id/dataset-parameter/770647.rdf
Name: Date
Units: unitless
Description: <p>Collection Date represented as yyyy-mm-dd</p>
http://lod.bco-dmo.org/id/dataset-parameter/770648.rdf
Name: geo_loc_lat
Units: decimal degrees
Description: <p>Latitude of the sample in degrees</p>
http://lod.bco-dmo.org/id/dataset-parameter/770649.rdf
Name: geo_loc_long
Units: decimal degrees
Description: <p>Longitude of the sample in degrees</p>
http://lod.bco-dmo.org/id/dataset-parameter/770650.rdf
Name: Water_depth
Units: meters (m)
Description: <p>Depth in meter that the sample was collected from</p>
http://lod.bco-dmo.org/id/dataset-parameter/770651.rdf
Name: Replicate
Units: unitless
Description: <p>Individual identifier for the core (all letters indicate samples from a single core or sampling cluster). Pore water was taken adjacent to the core however within 10cm of the core and thus from the same geochemical environment.</p>
http://lod.bco-dmo.org/id/dataset-parameter/770652.rdf
Name: Sediment_Depth
Units: centimeters (cm)
Description: <p>depth or depth range from which the same was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/770653.rdf
Name: sampling_approach
Units: unitless
Description: <p>sampling approach used for the observations (porewater; sediment; or flux chamber)</p>
http://lod.bco-dmo.org/id/dataset-parameter/770654.rdf
Name: Fluoride
Units: millimole (mmol)
Description: <p>Fluoride</p>
http://lod.bco-dmo.org/id/dataset-parameter/770655.rdf
Name: Acetate
Units: millimole (mmol)
Description: <p>Acetate</p>
http://lod.bco-dmo.org/id/dataset-parameter/770656.rdf
Name: Formate
Units: millimole (mmol)
Description: <p>Formate</p>
http://lod.bco-dmo.org/id/dataset-parameter/770657.rdf
Name: Chloride
Units: millimole (mmol)
Description: <p>Chloride</p>
http://lod.bco-dmo.org/id/dataset-parameter/770658.rdf
Name: Nitrite
Units: millimole (mmol)
Description: <p>Nitrite</p>
http://lod.bco-dmo.org/id/dataset-parameter/770659.rdf
Name: Bromide
Units: millimole (mmol)
Description: <p>Bromide</p>
http://lod.bco-dmo.org/id/dataset-parameter/770660.rdf
Name: Sulfate
Units: millimole (mmol)
Description: <p>Sulfate</p>
http://lod.bco-dmo.org/id/dataset-parameter/770661.rdf
Name: Thiosulfate
Units: millimole (mmol)
Description: <p>Thiosulfate</p>
http://lod.bco-dmo.org/id/dataset-parameter/770662.rdf
Name: Lithium
Units: millimole (mmol)
Description: <p>Lithium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770663.rdf
Name: Sodium
Units: millimole (mmol)
Description: <p>Sodium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770664.rdf
Name: Ammonium
Units: millimole (mmol)
Description: <p>Ammonium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770665.rdf
Name: Potassium
Units: millimole (mmol)
Description: <p>Potassium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770666.rdf
Name: Magnesium
Units: millimole (mmol)
Description: <p>Magnesium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770667.rdf
Name: Calcium
Units: millimole (mmol)
Description: <p>Calcium</p>
http://lod.bco-dmo.org/id/dataset-parameter/770668.rdf
Name: Sulfide
Units: millimole (mmol)
Description: <p>Sulfide</p>
http://lod.bco-dmo.org/id/dataset-parameter/770669.rdf
Name: Methane_porewater
Units: nanomole per milliliter of porewater (nmol ml-1 porewater)
Description: <p>Methane in porewater</p>
http://lod.bco-dmo.org/id/dataset-parameter/770670.rdf
Name: Methane_sediment
Units: nanomole per cubic centimeter of sediment (nmol cm^-3 sediment)
Description: <p>Methane in sediment</p>
http://lod.bco-dmo.org/id/dataset-parameter/770671.rdf
Name: d2HVSMOW
Units: per mil
Description: <p>stable isotopic composition of hydrogen in comparison to the reference "Vienna-Standard Mean Ocean Water"</p>
http://lod.bco-dmo.org/id/dataset-parameter/770672.rdf
Name: d13CVPDB
Units: per mil
Description: <p>stable isotopic composition of carbon in comparison to the reference "Vienna PeeDee Belemnite"</p>
http://lod.bco-dmo.org/id/dataset-parameter/770673.rdf
Name: Methane_Flux
Units: millimole per meter squared per day (mmol m-2 d-1)
Description: <p>Methane_Flux</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
8601
https://darchive.mblwhoilibrary.org/bitstream/1912/24279/1/dataset-770638_porewater-composition__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.770638.1
download
onLine
dataset
<p>Sediment samples: Sediment cores were collected from the Cinder Cones site including a methane seep habitat and vertically sectioned into identified intervals at either 3cm or 1cm intervals depending on the analysis. To quantify methane from sediment plugs, subcores were taken vertically via a syringe with the end cut off to sample 3 cm3 of sediment.&nbsp; The subcores were preserved in 2ml of 5M NaOH in a serum bottle and caped with a butyl stopper for later analysis. It was stored and shipped upside down. Large grain size led to rapid dewatering of the cores making the concentrations likely conservative estimates of the methane (i.e. the is a chance some of the porewater was lost during sampling).&nbsp; For 0-1 cm sediment plugs, a core was vertically sectioned and frozen at -80oC until later analysis.</p>
<p>Porewater samples:&nbsp; Pore water was sampled in situ by placing a vertical barrier in the sediment, excavating one side and inserting a Rhyzon filter (0.2 um) into the intact sediment on the opposite side of the excavation. 1 ml of porewater was discarded as a rinse and then 5ml of pore water was extracted. These were taken at 2 cm intervals starting at 1 cm below the sediment surface to 5cm.&nbsp; 3ml were preserved in serum bottles with 2ml of 5M NaOH for later methane analysis. 1 ml was filtered to remove particles &gt;0.2 um and frozen for ion analysis and 1ml was preserved with 0.25ml of 0.05 M Zinc acetate for hydrogen sulfide concentration for Spectrophotometric analysis following Cline (1969).&nbsp;&nbsp;</p>
<p>Sampling and analytical procedures:&nbsp;&nbsp;<br />
Methane: Samples were kept stored cold and inverted for both porewater and sediment plug sampling approaches for methane.&nbsp; Headspace from each of the serum vials was injected into a Gas Chromatograph with Flame Ionization Detector (GC-FID) after a standard curve was generated based on known standards increasing from 10 to 1000 ppm and the same injection volume (between 50 and 100 ul) as the headspace of the samples.&nbsp; Adjusted r2 of the calibration curve was&nbsp; 1.0.&nbsp; Response area was measured using “Peak Simple” software.</p>
<p>Methane Flux: Methane flux was measured in 2016 through the deployment of benthic flux chambers. Chambers were 10cm i.d. cores with a cap containing a septa sealed hole for sampling and an o-ring seal around the cap. The chambers were sealed with the caps after the cores were inserted into the sediment to ensure minimal disturbance to the system. Chambers were not continually stirred but were stirred by using magnetic propeller system that allowed gentle agitation prior to each sample collection. Samples were taken on 12-hour intervals to quantify that release of methane through syringe sampling through the septa; at no point were the chambers opened</p>
Specified by the Principal Investigator(s)
<p>Data processing was limited to using standard curves from and converting to water volume and surface area.<br />
<br />
BCO-DMO Processing Notes:<br />
-&nbsp;added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- converted "Collection_Date" from Excel date integer to ISO yyyy-mm-dd representation and inserted into "Date" column.</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
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
HP 5890 Gas Chromatograph
HP 5890 Gas Chromatograph
PI Supplied Instrument Name: HP 5890 Gas Chromatograph PI Supplied Instrument Description:Methane concentration was measured with a HP 5890 Gas Chromatograph with an AllTech Porapak N8/100 column and a Flame ionization detector. Instrument Name: Gas Chromatograph Instrument Short Name:Gas Chromatograph Instrument Description: Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/
Thermo Delta V Plus isotope ratio mass spectrometer
Thermo Delta V Plus isotope ratio mass spectrometer
PI Supplied Instrument Name: Thermo Delta V Plus isotope ratio mass spectrometer PI Supplied Instrument Description:The δ13C and δ2H of methane were analyzed at the University of California, Davis on a Thermo Scientific GasBench-Precon interfaced to a Thermo Delta V Plus isotope ratio mass spectrometer. Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/