ERDDAP > info > bcodmo_dataset_805916

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
	set	data	graph		files	public	[Electrochemical Data CL2016] - Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016 (Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments)		F   I   M	background			BCO-DMO	bcodmo_dataset_805916

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	Sediments were collected and profiled immediately with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator (Beckler et al., 2016). Sediment cores were obtained by a MC-800 multi-corer and profiled within 30 minutes with voltammetric Hg/Au microelectrodes deployed on a computer- controlled micromanipulator. O\u2082(aq), Mn(II), Fe(II), Org-Fe(III), FeS(aq), and SH2S were measured by voltammetry using non-invasive mercury/gold (Hg/Au) microelectrodes (Luther et al., 2008) in intact sediment cores. Org- Fe(III) and FeS(aq) cannot be quantified by these methods and are reported in current intensities. Problem report: Some of the data are missing because of electrostatic interferences that typically occur at time on ships.
attribute	NC_GLOBAL	awards_0_award_nid	String	743718
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1438648
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1438648
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	Henrietta N Edmonds
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	51517
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	SAV-16-16 (CL2016) Electrochemical Data PI: Martial Taillefert Version date: 2020-March-16
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	2020-03-16T18:24:13Z
attribute	NC_GLOBAL	date_modified	String	2020-03-19T19:18:09Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.26008/1912/bco-dmo.805916.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-75.799
attribute	NC_GLOBAL	geospatial_lat_max	double	34.635
attribute	NC_GLOBAL	geospatial_lat_min	double	33.869
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-75.799
attribute	NC_GLOBAL	geospatial_lon_min	double	-76.605
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/805916
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Multi Corer
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Sediment cores were obtained by a MC-800 multi-corer.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	806038
attribute	NC_GLOBAL	instruments_0_description	String	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.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/51/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Multi Corer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	532
attribute	NC_GLOBAL	instruments_0_supplied_name	String	MC-800 multi-corer
attribute	NC_GLOBAL	instruments_1_acronym	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Electrochemical analyzer: DLK-100 and DLK-70 with EX-MAN-1 micromanipulator (Analytical Instrument Systems, Inc.).
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	806039
attribute	NC_GLOBAL	instruments_1_description	String	Instruments that obtain information about an analyte by applying a potential and measuring the current produced in the analyte.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB35/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	698
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Electrochemical analyzer
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, collection, Collection_Type, data, dataset, date, day, depth, dmo, erddap, Fe_II, FeS_aq, iii, latitude, longitude, management, Mn_II, month, O2, oceanography, office, org, Org_Fe_III, oxygen, preliminary, sdFe_II, sdFeS_aq, sdMn_II, sdO2, sdOrgFe_III, sdSH2S, sediment, Sediment_depth, sh2, SH2S, station, time, type, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/805916/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/805916
attribute	NC_GLOBAL	Northernmost_Northing	double	34.635
attribute	NC_GLOBAL	param_mapping	String	{'805916': {'Lat': 'flag - latitude', 'Lon': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/805916/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Georgia Institute of Technology
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	Georgia Tech
attribute	NC_GLOBAL	people_0_person_name	String	Martial Taillefert
attribute	NC_GLOBAL	people_0_person_nid	String	743721
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	Shannon Rauch
attribute	NC_GLOBAL	people_1_person_nid	String	51498
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	Soluble Fe Fluxing
attribute	NC_GLOBAL	projects_0_acronym	String	Soluble Fe Fluxing
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: Iron is a limiting nutrient in the world's oceans and plays a key role in regulating the growth of phytoplankton. The main sources of iron to the open ocean are the atmosphere, through wind-blown terrestrial dust, and the seafloor, through input from continental shelf sediments. While atmospheric inputs have been well-studied, the oceanic input of iron from sediments has only sparsely been measured and, as a result, the relative importance of the sediment-derived iron to the iron pool and, ultimately, primary productivity in the oceans is poorly understood. In this study, researchers will examine the chemical properties of sediment-derived iron in the oceans to assess its contribution to the iron used by phytoplankton. Results from this study will further our understanding of iron inputs to the ocean and their importance to ocean primary productivity. The project will contribute to the training of graduate students, as well as provide educational opportunities such as a day at sea for undergraduate students in engineering and physical science. The atmosphere and continental margin sediments are the main source of the limiting nutrient iron (Fe) to the open ocean. Yet, the chemical form of iron from sediments has not been well examined and only quantified as reduced iron or the dissolved iron passing through 0.45 µm filters. The kinetics of iron oxygenation suggests it should precipitate rapidly in the overlying waters, challenging the view that sediments are important sources of iron for primary production. To establish whether the flux of iron from sediments has important implications for primary productivity, possibly rivaling atmospheric inputs, it is necessary to demonstrate that ferric iron originating in sediments is under the form of stable iron species with potential for a high residence time in the water column. The overall objective of this project is to test the hypotheses that iron fluxing across the sediment-water interface in continental margin sediments is dissolved under the form of organic-Fe(III) complexes and that the magnitude of the iron flux is influenced by the redox conditions in the overlying waters, the composition of the complexes, and the biogeochemical processes in the underlying sediments. To test these hypotheses, the flux and speciation of dissolved Fe(III) will be quantified in the sediments of the Carolina depocenter and the Gulf of Mexico, and the biogeochemical processes regulating the production and the flux of iron as a function of the redox regime of the environment will be determined using in situ measurements and state-of-the-art voltammetric and chromatographic techniques.
attribute	NC_GLOBAL	projects_0_end_date	String	2017-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Northern South Atlantic Bight (Cape Lookout, NC) and Northern Gulf of Mexico
attribute	NC_GLOBAL	projects_0_name	String	Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments
attribute	NC_GLOBAL	projects_0_project_nid	String	743719
attribute	NC_GLOBAL	projects_0_start_date	String	2014-09
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	33.869
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	Year,Month,Collection_Type
attribute	NC_GLOBAL	summary	String	Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016.
attribute	NC_GLOBAL	title	String	[Electrochemical Data CL2016] - Electrochemical data from sediments collected on R/V Savannah cruise SAV-16-16 at the Cape Lookout Continental Shelf and Slope during May 2016 (Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-76.605
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Year		short
attribute	Year	_FillValue	short	32767
attribute	Year	actual_range	short	2016, 2016
attribute	Year	bcodmo_name	String	year
attribute	Year	description	String	Year
attribute	Year	long_name	String	Year
attribute	Year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	Year	units	String	unitless
variable	Month		byte
attribute	Month	_FillValue	byte	127
attribute	Month	actual_range	byte	5, 5
attribute	Month	bcodmo_name	String	month
attribute	Month	description	String	Month
attribute	Month	long_name	String	Month
attribute	Month	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/MNTHXXXX/
attribute	Month	units	String	unitless
variable	Day		byte
attribute	Day	_FillValue	byte	127
attribute	Day	actual_range	byte	17, 26
attribute	Day	bcodmo_name	String	day
attribute	Day	description	String	Day
attribute	Day	long_name	String	Day
attribute	Day	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DAYXXXXX/
attribute	Day	units	String	unitless
variable	Collection_Type		String
attribute	Collection_Type	bcodmo_name	String	instrument
attribute	Collection_Type	description	String	Instrument used for collection
attribute	Collection_Type	long_name	String	Collection Type
attribute	Collection_Type	units	String	unitless
variable	Station		String
attribute	Station	bcodmo_name	String	station
attribute	Station	description	String	Station number
attribute	Station	long_name	String	Station
attribute	Station	units	String	unitless
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-76.605, -75.799
attribute	longitude	axis	String	X
attribute	longitude	bcodmo_name	String	longitude
attribute	longitude	colorBarMaximum	double	180.0
attribute	longitude	colorBarMinimum	double	-180.0
attribute	longitude	description	String	Longitude
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
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	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	33.869, 34.635
attribute	latitude	axis	String	Y
attribute	latitude	bcodmo_name	String	latitude
attribute	latitude	colorBarMaximum	double	90.0
attribute	latitude	colorBarMinimum	double	-90.0
attribute	latitude	description	String	Latitude
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
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	Sediment_depth		float
attribute	Sediment_depth	_FillValue	float	NaN
attribute	Sediment_depth	actual_range	float	-5.0, 227.9
attribute	Sediment_depth	bcodmo_name	String	depth_bsf
attribute	Sediment_depth	description	String	Sediment depth
attribute	Sediment_depth	long_name	String	Sediment Depth
attribute	Sediment_depth	units	String	millimeters (mm)
variable	O2		float
attribute	O2	_FillValue	float	NaN
attribute	O2	actual_range	float	0.0, 260.0
attribute	O2	bcodmo_name	String	dissolved Oxygen
attribute	O2	description	String	Dissolved oxygen
attribute	O2	long_name	String	O2
attribute	O2	units	String	uM (micromolar)
variable	sdO2		float
attribute	sdO2	_FillValue	float	NaN
attribute	sdO2	actual_range	float	0.0, 0.11
attribute	sdO2	bcodmo_name	String	dissolved Oxygen
attribute	sdO2	description	String	Standard deviation of O2
attribute	sdO2	long_name	String	Sd O2
attribute	sdO2	units	String	uM (micromolar)
variable	Mn_II		float
attribute	Mn_II	_FillValue	float	NaN
attribute	Mn_II	actual_range	float	0.0, 70.19
attribute	Mn_II	bcodmo_name	String	Mn
attribute	Mn_II	description	String	Dissolved manganese(II)
attribute	Mn_II	long_name	String	Mn II
attribute	Mn_II	units	String	uM (micromolar)
variable	sdMn_II		float
attribute	sdMn_II	_FillValue	float	NaN
attribute	sdMn_II	actual_range	float	0.0, 5.09
attribute	sdMn_II	bcodmo_name	String	Mn
attribute	sdMn_II	description	String	Standard deviation of Mn_II
attribute	sdMn_II	long_name	String	Sd Mn II
attribute	sdMn_II	units	String	uM (micromolar)
variable	Fe_II		float
attribute	Fe_II	_FillValue	float	NaN
attribute	Fe_II	actual_range	float	0.0, 198.11
attribute	Fe_II	bcodmo_name	String	Fe
attribute	Fe_II	description	String	Dissolved iron(II)
attribute	Fe_II	long_name	String	Fe II
attribute	Fe_II	units	String	uM (micromolar)
variable	sdFe_II		float
attribute	sdFe_II	_FillValue	float	NaN
attribute	sdFe_II	actual_range	float	0.0, 17.91
attribute	sdFe_II	bcodmo_name	String	Fe
attribute	sdFe_II	description	String	Standard deviation of Fe_II
attribute	sdFe_II	long_name	String	Sd Fe II
attribute	sdFe_II	units	String	uM (micromolar)
variable	Org_Fe_III		float
attribute	Org_Fe_III	_FillValue	float	NaN
attribute	Org_Fe_III	actual_range	float	0.0, 24.96
attribute	Org_Fe_III	bcodmo_name	String	Fe
attribute	Org_Fe_III	description	String	Dissolved organic-Fe(III) complexes
attribute	Org_Fe_III	long_name	String	Org Fe III
attribute	Org_Fe_III	units	String	nA
variable	sdOrgFe_III		float
attribute	sdOrgFe_III	_FillValue	float	NaN
attribute	sdOrgFe_III	actual_range	float	0.0, 1.67
attribute	sdOrgFe_III	bcodmo_name	String	Fe
attribute	sdOrgFe_III	description	String	Standard deviation of Org_Fe_III
attribute	sdOrgFe_III	long_name	String	Sd Org Fe III
attribute	sdOrgFe_III	units	String	nA
variable	FeS_aq		float
attribute	FeS_aq	_FillValue	float	NaN
attribute	FeS_aq	actual_range	float	0.0, 19.63
attribute	FeS_aq	bcodmo_name	String	Fe
attribute	FeS_aq	description	String	Dissolved molecular clusters of FeS
attribute	FeS_aq	long_name	String	Fe S Aq
attribute	FeS_aq	units	String	nA
variable	sdFeS_aq		float
attribute	sdFeS_aq	_FillValue	float	NaN
attribute	sdFeS_aq	actual_range	float	0.0, 0.33
attribute	sdFeS_aq	bcodmo_name	String	Fe
attribute	sdFeS_aq	description	String	Standard deviation of FeS_aq
attribute	sdFeS_aq	long_name	String	Sd Fe S Aq
attribute	sdFeS_aq	units	String	nA
variable	SH2S		float
attribute	SH2S	_FillValue	float	NaN
attribute	SH2S	actual_range	float	0.0, 227.47
attribute	SH2S	bcodmo_name	String	S
attribute	SH2S	description	String	Dissolved inorganic sulfur
attribute	SH2S	long_name	String	SH2 S
attribute	SH2S	units	String	uM (micromolar)
variable	sdSH2S		float
attribute	sdSH2S	_FillValue	float	NaN
attribute	sdSH2S	actual_range	float	0.0, 1.01
attribute	sdSH2S	bcodmo_name	String	S
attribute	sdSH2S	description	String	Standard deviation of SH2S
attribute	sdSH2S	long_name	String	SD SH2 S
attribute	sdSH2S	units	String	uM (micromolar)
variable	date		String
attribute	date	bcodmo_name	String	date
attribute	date	description	String	Date; format: 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

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.