ERDDAP > info > bcodmo_dataset_770638

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	[Porewater Composition] - Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016 (EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat)		F   I   M	background			BCO-DMO	bcodmo_dataset_770638

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	access_formats	String	.htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute	NC_GLOBAL	acquisition_description	String	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.\u00a0 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).\u00a0 For 0-1 cm sediment plugs, a core was vertically sectioned and frozen at -80oC until later analysis. Porewater samples:\u00a0 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.\u00a0 3ml were preserved in serum bottles with 2ml of 5M NaOH for later methane analysis. 1 ml was filtered to remove particles >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).\u00a0\u00a0 Sampling and analytical procedures:\u00a0\u00a0 Methane: Samples were kept stored cold and inverted for both porewater and sediment plug sampling approaches for methane.\u00a0 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.\u00a0 Adjusted r2 of the calibration curve was\u00a0 1.0.\u00a0 Response area was measured using \u201cPeak Simple\u201d software. 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
attribute	NC_GLOBAL	awards_0_award_nid	String	709614
attribute	NC_GLOBAL	awards_0_award_number	String	OPP-1642570
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1642570
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Office of Polar Programs (formerly NSF PLR)
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OPP
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	713360
attribute	NC_GLOBAL	awards_0_program_manager	String	Christian Fritsen
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	683959
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site. PI: Andrew Thurber Version: 2019-06-12 bdl = below detection limit
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2019-06-12T15:47:26Z
attribute	NC_GLOBAL	date_modified	String	2019-06-21T15:22:39Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.770638.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-166.666
attribute	NC_GLOBAL	geospatial_lat_max	double	-77.8
attribute	NC_GLOBAL	geospatial_lat_min	double	-77.8
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-166.666
attribute	NC_GLOBAL	geospatial_lon_min	double	-166.666
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	10.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	7.0
attribute	NC_GLOBAL	geospatial_vertical_positive	String	down
attribute	NC_GLOBAL	geospatial_vertical_units	String	m
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/770638
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	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.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	770642
attribute	NC_GLOBAL	instruments_0_description	String	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).
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Thermo Delta V Plus isotope ratio mass spectrometer
attribute	NC_GLOBAL	instruments_1_acronym	String	Gas Chromatograph
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Methane concentration was measured with a HP 5890 Gas Chromatograph with an AllTech Porapak N8/100 column and a Flame ionization detector.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	770641
attribute	NC_GLOBAL	instruments_1_description	String	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)
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB02/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Gas Chromatograph
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	661
attribute	NC_GLOBAL	instruments_1_supplied_name	String	HP 5890 Gas Chromatograph
attribute	NC_GLOBAL	keywords	String	acetate, ammonium, approach, bco, bco-dmo, biological, bromide, calcium, chemical, chloride, collection, Collection_Date, concentration, cvpdb, d13, d13CVPDB, d2HVSMOW, data, dataset, date, depth, dmo, erddap, fluoride, flux, formate, geo, geo_loc_lat, geo_loc_long, habitat, hvsmow, lithium, loc, long, magnesium, management, methane, Methane_Flux, Methane_porewater, Methane_sediment, mole, mole_concentration_of_nitrite_in_sea_water, name, nh4, nitrite, oceanography, office, porewater, potassium, preliminary, replicate, sampling, sampling_approach, sea, seawater, sediment, Sediment_Depth, site, Site_name, sodium, sulfate, sulfide, thiosulfate, time, water, Water_depth
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/770638/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/770638
attribute	NC_GLOBAL	Northernmost_Northing	double	-77.8
attribute	NC_GLOBAL	param_mapping	String	{'770638': {'geo_loc_lat': 'flag - latitude', 'Water_depth': 'flag - depth', 'geo_loc_long': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/770638/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Oregon State University
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	OSU
attribute	NC_GLOBAL	people_0_person_name	String	Andrew Thurber
attribute	NC_GLOBAL	people_0_person_nid	String	709617
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_1_person_name	String	Mathew Biddle
attribute	NC_GLOBAL	people_1_person_nid	String	708682
attribute	NC_GLOBAL	people_1_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_1_role_type	String	related
attribute	NC_GLOBAL	project	String	Cinder Cone Seep
attribute	NC_GLOBAL	projects_0_acronym	String	Cinder Cone Seep
attribute	NC_GLOBAL	projects_0_description	String	NSF abstract: 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. 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.
attribute	NC_GLOBAL	projects_0_end_date	String	2018-07
attribute	NC_GLOBAL	projects_0_geolocation	String	Ross Sea, Antarctica (78 S, 166 E)
attribute	NC_GLOBAL	projects_0_name	String	EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat
attribute	NC_GLOBAL	projects_0_project_nid	String	709615
attribute	NC_GLOBAL	projects_0_start_date	String	2016-08
attribute	NC_GLOBAL	publisher_name	String	Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-77.8
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	These data are samples of pore water collected from a methane seep on Ross Island. This seep had been active for 5 years at the time of sampling and were collected from 10m water depth.
attribute	NC_GLOBAL	title	String	[Porewater Composition] - Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016 (EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-166.666
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Site_name		String
attribute	Site_name	bcodmo_name	String	site
attribute	Site_name	description	String	Name of dive location on Ross Island Antarctica
attribute	Site_name	long_name	String	Site Name
attribute	Site_name	units	String	unitless
variable	Habitat		String
attribute	Habitat	bcodmo_name	String	site_descrip
attribute	Habitat	description	String	Whether the sample was from an area of active methane seepage or sampled adjacent to this habitat.
attribute	Habitat	long_name	String	Habitat
attribute	Habitat	units	String	unitless
variable	Collection_Date		int
attribute	Collection_Date	_FillValue	int	2147483647
attribute	Collection_Date	actual_range	int	42681, 42689
attribute	Collection_Date	bcodmo_name	String	unknown
attribute	Collection_Date	description	String	Date sample was collected as Excel integer representation
attribute	Collection_Date	long_name	String	Collection Date
attribute	Collection_Date	units	String	unitless
variable	Date		String
attribute	Date	bcodmo_name	String	date
attribute	Date	description	String	Collection Date represented as yyyy-mm-dd
attribute	Date	long_name	String	Date
attribute	Date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	Date	source_name	String	Date
attribute	Date	time_precision	String	1970-01-01
attribute	Date	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	-77.8, -77.8
attribute	latitude	axis	String	Y
attribute	latitude	bcodmo_name	String	latitude
attribute	latitude	description	String	Latitude of the sample in degrees
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Geo Loc Lat
attribute	latitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LATX/
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-166.666, -166.666
attribute	longitude	axis	String	X
attribute	longitude	bcodmo_name	String	longitude
attribute	longitude	description	String	Longitude of the sample in degrees
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Geo Loc Long
attribute	longitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LONX/
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	7.0, 10.0
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth
attribute	depth	description	String	Depth in meter that the sample was collected from
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Water Depth
attribute	depth	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/DEPH/
attribute	depth	positive	String	down
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
variable	Replicate		String
attribute	Replicate	bcodmo_name	String	replicate
attribute	Replicate	description	String	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.
attribute	Replicate	long_name	String	Replicate
attribute	Replicate	units	String	unitless
variable	Sediment_Depth		String
attribute	Sediment_Depth	bcodmo_name	String	depth_core
attribute	Sediment_Depth	description	String	depth or depth range from which the same was taken
attribute	Sediment_Depth	long_name	String	Sediment Depth
attribute	Sediment_Depth	units	String	centimeters (cm)
variable	sampling_approach		String
attribute	sampling_approach	bcodmo_name	String	sample_descrip
attribute	sampling_approach	description	String	sampling approach used for the observations (porewater; sediment; or flux chamber)
attribute	sampling_approach	long_name	String	Sampling Approach
attribute	sampling_approach	units	String	unitless
variable	Fluoride		float
attribute	Fluoride	_FillValue	float	NaN
attribute	Fluoride	actual_range	float	0.2934, 0.4786
attribute	Fluoride	bcodmo_name	String	unknown
attribute	Fluoride	description	String	Fluoride
attribute	Fluoride	long_name	String	Fluoride
attribute	Fluoride	units	String	millimole (mmol)
variable	Acetate		String
attribute	Acetate	bcodmo_name	String	unknown
attribute	Acetate	description	String	Acetate
attribute	Acetate	long_name	String	Acetate
attribute	Acetate	units	String	millimole (mmol)
variable	Formate		String
attribute	Formate	bcodmo_name	String	unknown
attribute	Formate	description	String	Formate
attribute	Formate	long_name	String	Formate
attribute	Formate	units	String	millimole (mmol)
variable	Chloride		float
attribute	Chloride	_FillValue	float	NaN
attribute	Chloride	actual_range	float	523.6157, 566.4875
attribute	Chloride	bcodmo_name	String	chloride
attribute	Chloride	description	String	Chloride
attribute	Chloride	long_name	String	Chloride
attribute	Chloride	units	String	millimole (mmol)
variable	Nitrite		float
attribute	Nitrite	_FillValue	float	NaN
attribute	Nitrite	actual_range	float	0.119, 0.1683
attribute	Nitrite	bcodmo_name	String	NO2
attribute	Nitrite	colorBarMaximum	double	1.0
attribute	Nitrite	colorBarMinimum	double	0.0
attribute	Nitrite	description	String	Nitrite
attribute	Nitrite	long_name	String	Mole Concentration Of Nitrite In Sea Water
attribute	Nitrite	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/
attribute	Nitrite	units	String	millimole (mmol)
variable	Bromide		float
attribute	Bromide	_FillValue	float	NaN
attribute	Bromide	actual_range	float	1.139, 1.4592
attribute	Bromide	bcodmo_name	String	bromides
attribute	Bromide	description	String	Bromide
attribute	Bromide	long_name	String	Bromide
attribute	Bromide	units	String	millimole (mmol)
variable	Sulfate		float
attribute	Sulfate	_FillValue	float	NaN
attribute	Sulfate	actual_range	float	22.8303, 28.4088
attribute	Sulfate	bcodmo_name	String	SO4
attribute	Sulfate	description	String	Sulfate
attribute	Sulfate	long_name	String	Sulfate
attribute	Sulfate	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/SPHTMAXX/
attribute	Sulfate	units	String	millimole (mmol)
variable	Thiosulfate		String
attribute	Thiosulfate	bcodmo_name	String	unknown
attribute	Thiosulfate	description	String	Thiosulfate
attribute	Thiosulfate	long_name	String	Thiosulfate
attribute	Thiosulfate	units	String	millimole (mmol)
variable	Lithium		float
attribute	Lithium	_FillValue	float	NaN
attribute	Lithium	actual_range	float	0.0148, 0.0172
attribute	Lithium	bcodmo_name	String	Li
attribute	Lithium	description	String	Lithium
attribute	Lithium	long_name	String	Lithium
attribute	Lithium	units	String	millimole (mmol)
variable	Sodium		float
attribute	Sodium	_FillValue	float	NaN
attribute	Sodium	actual_range	float	422.0486, 452.1328
attribute	Sodium	bcodmo_name	String	Na
attribute	Sodium	description	String	Sodium
attribute	Sodium	long_name	String	Sodium
attribute	Sodium	units	String	millimole (mmol)
variable	Ammonium		String
attribute	Ammonium	bcodmo_name	String	Ammonium
attribute	Ammonium	description	String	Ammonium
attribute	Ammonium	long_name	String	Ammonium
attribute	Ammonium	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/
attribute	Ammonium	units	String	millimole (mmol)
variable	Potassium		float
attribute	Potassium	_FillValue	float	NaN
attribute	Potassium	actual_range	float	10.7635, 11.5517
attribute	Potassium	bcodmo_name	String	K
attribute	Potassium	description	String	Potassium
attribute	Potassium	long_name	String	Potassium
attribute	Potassium	units	String	millimole (mmol)
variable	Magnesium		float
attribute	Magnesium	_FillValue	float	NaN
attribute	Magnesium	actual_range	float	55.9626, 60.2467
attribute	Magnesium	bcodmo_name	String	Mg
attribute	Magnesium	description	String	Magnesium
attribute	Magnesium	long_name	String	Magnesium
attribute	Magnesium	units	String	millimole (mmol)
variable	Calcium		float
attribute	Calcium	_FillValue	float	NaN
attribute	Calcium	actual_range	float	15.6499, 16.9822
attribute	Calcium	bcodmo_name	String	Ca
attribute	Calcium	description	String	Calcium
attribute	Calcium	long_name	String	Calcium
attribute	Calcium	units	String	millimole (mmol)
variable	Sulfide		String
attribute	Sulfide	bcodmo_name	String	sulfide
attribute	Sulfide	description	String	Sulfide
attribute	Sulfide	long_name	String	Sulfide
attribute	Sulfide	units	String	millimole (mmol)
variable	Methane_porewater		double
attribute	Methane_porewater	_FillValue	double	NaN
attribute	Methane_porewater	actual_range	double	184.2634, 1164.2656
attribute	Methane_porewater	bcodmo_name	String	CH4
attribute	Methane_porewater	description	String	Methane in porewater
attribute	Methane_porewater	long_name	String	Methane Porewater
attribute	Methane_porewater	units	String	nanomole per milliliter of porewater (nmol ml-1 porewater)
variable	Methane_sediment		float
attribute	Methane_sediment	_FillValue	float	NaN
attribute	Methane_sediment	actual_range	float	9.4392, 757.6279
attribute	Methane_sediment	bcodmo_name	String	CH4
attribute	Methane_sediment	description	String	Methane in sediment
attribute	Methane_sediment	long_name	String	Methane Sediment
attribute	Methane_sediment	units	String	nanomole per cubic centimeter of sediment (nmol cm^-3 sediment)
variable	d2HVSMOW		float
attribute	d2HVSMOW	_FillValue	float	NaN
attribute	d2HVSMOW	actual_range	float	-401.102, -320.9326
attribute	d2HVSMOW	bcodmo_name	String	unknown
attribute	d2HVSMOW	description	String	stable isotopic composition of hydrogen in comparison to the reference "Vienna-Standard Mean Ocean Water"
attribute	d2HVSMOW	long_name	String	D2 HVSMOW
attribute	d2HVSMOW	units	String	per mil
variable	d13CVPDB		float
attribute	d13CVPDB	_FillValue	float	NaN
attribute	d13CVPDB	actual_range	float	-79.7834, -47.4879
attribute	d13CVPDB	bcodmo_name	String	unknown
attribute	d13CVPDB	description	String	stable isotopic composition of carbon in comparison to the reference "Vienna PeeDee Belemnite"
attribute	d13CVPDB	long_name	String	D13 CVPDB
attribute	d13CVPDB	units	String	per mil
variable	Methane_Flux		String
attribute	Methane_Flux	bcodmo_name	String	CH4
attribute	Methane_Flux	description	String	Methane_Flux
attribute	Methane_Flux	long_name	String	Methane Flux
attribute	Methane_Flux	units	String	millimole per meter squared per day (mmol m-2 d-1)

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.