ERDDAP > info > bcodmo_dataset_769203

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	[Water column methane ethylene and nutrients] - Concentration measurements of water column phosphate, nitrate and nitrite, dissolved organic phosphorus, methane, and ethylene from samples collected during the R/V Neil Armstrong cruise AR16 in the western North Atlantic Ocean in May 2017 (Methane, Ethylene, and Dissolved Organic Phosphorus Cycling in the Western North Atlantic Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_769203

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,.odvTxt
attribute	NC_GLOBAL	acquisition_description	String	Sampling was conducted aboard the R/V Neil Armstrong (cruise AR16) in May 2017. Seawater was collected from Niskin bottles deployed on a rosette with a CTD. Samples for seawater methane (CH4) and ethylene (C2H4) concentration measurements were collected from the CTD rosette in 250 mL glass serum vials (pre-combusted) crimp-sealed with aluminum collars and with Teflon-lined septa. Samples were typically analyzed the same day of sampling aboard the R/V Armstrong with an Agilent 7980A gas chromatograph equipped with a flame ionization detector (FID) and a gas stripping and cryo-trap concentration method as described previously (Repeta et al. 2016). The FID was calibrated by injecting different sized loops of a gas mixture standard containing 10 ppm of CH4 and C2H4 in pure nitrogen gas (Scott-Marrin, Riverside, CA, USA). Samples for nutrient analyses were collected in acid-clean HDPE plastic bottles. Samples were shipped frozen to the Center for Microbial Oceanography: Research and Education at the University of Hawaii at Manoa where they were stored frozen until analysis. Seawater phosphate (PO4) concentrations were determined following the autoanalyzer colorimetric procedure of Foreman et al. (2019). Seawater nitrate+nitrite (NOx) concentrations were determined following the autoanalyzer colorimetric procedure outlined of Foreman et al. (2016). Both PO4 and NOx analyses were performed on a SEAL Analytics autoanalyzer model 3 HR. Seawater samples with low level N+N (LLN) concentrations were measured using the modified chemiluminescent method based on titanium (III) trichloride reduction of N+N to nitric oxide gas and detection with an Antek model 7090 as described by Foreman et al. (2016). MAGIC soluble reactive phosphorus (SRP) concentrations (i.e. phosphate) were determined in seawater samples using the MAGnesium Induced Coprecipitation (MAGIC) technique as described by Karl and Tien (1992) with modifications based on Thompson-Bulldis and Karl (1998) and Cavendar-Bares et al. (2001) to increase the concentration factor of phosphate. Specifically, SRP was concentrated from 150 mL sweater samples using 0.75 mL (0.5% v/v) of 1M NaOH to precipitate Mg(OH)\u2082 and the Mg(OH)\u2082 pellets were dissolved with 5.25 mL of 0.1M HCl. Total dissolved P (TDP) concentrations were measured by a photo-oxidation procedure in which controlled exposure to ultraviolet (UV) radiation converts organic P in seawater to phosphate which is then measured by the modified molybdenum blue method adapted for the autoanalyzer technique. The UV photo- oxidation methodology for TDP analysis is described in Foreman et al. (2019). The difference between TDP and PO4 or TDP and SRP is calculated to estimate the concentration of dissolved organic phosphorus (DOP) in seawater.
attribute	NC_GLOBAL	awards_0_award_nid	String	765013
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1634080
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1634080
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	Dr Simone Metz
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	51479
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Water column methane, ethylene, and corresponding nutrients from R/V Armstrong cruise AR16 PI: Daniel J. Repeta (WHOI) Co-PIs: David M. Karl (University of Hawaii) Version date hisotry: 19 July 2019 (current) - version 2; detection limits of ethylene gas were re-calculated. 11 June 2019 - version 1; original submission. Note: nd = not determined; 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	2019-05-31T16:07:12Z
attribute	NC_GLOBAL	date_modified	String	2019-07-22T17:48:47Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.769203.2
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.1875
attribute	NC_GLOBAL	geospatial_lat_max	double	40.4025
attribute	NC_GLOBAL	geospatial_lat_min	double	29.05817
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.1875
attribute	NC_GLOBAL	geospatial_lon_min	double	-71.33867
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	1000.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	5.0
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/769203
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Niskin bottle
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	769221
attribute	NC_GLOBAL	instruments_0_description	String	A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Niskin bottle
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	413
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Niskin bottles
attribute	NC_GLOBAL	instruments_1_acronym	String	Gas Chromatograph
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	769222
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	Agilent 7980A
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	769225
attribute	NC_GLOBAL	instruments_2_description	String	The chemiluminescence method for gas analysis of oxides of nitrogen relies on the measurement of light produced by the gas-phase titration of nitric oxide and ozone. A chemiluminescence analyzer can measure the concentration of NO/NO2/NOX. One example is the Teledyne Model T200: http://www.teledyne-api.com/products/T200.asp
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Chemiluminescence NOx Analyzer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	542895
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Antek model 7090
attribute	NC_GLOBAL	instruments_3_acronym	String	FID
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	769223
attribute	NC_GLOBAL	instruments_3_description	String	A flame ionization detector (FID) is a scientific instrument that measures the concentration of organic species in a gas stream. It is frequently used as a detector in gas chromatography. Standalone FIDs can also be used in applications such as landfill gas monitoring, fugitive emissions monitoring and internal combustion engine emissions measurement in stationary or portable instruments.
attribute	NC_GLOBAL	instruments_3_instrument_name	String	Flame Ionization Detector
attribute	NC_GLOBAL	instruments_3_instrument_nid	String	644600
attribute	NC_GLOBAL	instruments_3_supplied_name	String	Agilent 7980A
attribute	NC_GLOBAL	instruments_4_acronym	String	Seal Analytical AutoAnalyser 3HR
attribute	NC_GLOBAL	instruments_4_dataset_instrument_nid	String	769224
attribute	NC_GLOBAL	instruments_4_description	String	A fully automated Segmented Flow Analysis (SFA) system, ideal for water and seawater analysis. It comprises a modular system which integrates an autosampler, peristaltic pump, chemistry manifold and detector. The sample and reagents are pumped continuously through the chemistry manifold, and air bubbles are introduced at regular intervals forming reaction segments which are mixed using glass coils. The AA3 uses segmented flow analysis principles to reduce inter-sample dispersion, and can analyse up to 100 samples per hour using stable LED light sources.
attribute	NC_GLOBAL	instruments_4_instrument_name	String	Seal Analytical AutoAnalyser 3HR
attribute	NC_GLOBAL	instruments_4_instrument_nid	String	765117
attribute	NC_GLOBAL	instruments_4_supplied_name	String	SEAL Analytics autoanalyzer model 3 HR
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, C2H4, cast, ch4, chemical, cruise, data, dataset, date, depth, dmo, erddap, iso, latitude, lln, longitude, management, nox, oceanography, office, phosphate, po4, preliminary, srp, station, tdp, time
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/769203/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/769203
attribute	NC_GLOBAL	Northernmost_Northing	double	40.4025
attribute	NC_GLOBAL	param_mapping	String	{'769203': {'Latitude': 'flag - latitude', 'Depth': 'flag - depth', 'Longitude': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/769203/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_0_person_name	String	Daniel J. Repeta
attribute	NC_GLOBAL	people_0_person_nid	String	50621
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	University of Hawaii at Manoa
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	SOEST
attribute	NC_GLOBAL	people_1_person_name	String	David M. Karl
attribute	NC_GLOBAL	people_1_person_nid	String	50750
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_affiliation	String	University of Hawaii at Manoa
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	SOEST
attribute	NC_GLOBAL	people_2_person_name	String	Oscar A. Sosa
attribute	NC_GLOBAL	people_2_person_nid	String	769207
attribute	NC_GLOBAL	people_2_role	String	Contact
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_3_person_nid	String	51498
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	PHAT
attribute	NC_GLOBAL	projects_0_acronym	String	PHAT
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: The "marine methane paradox" refers to observations of high concentrations of methane in surface waters of the ocean, even though these waters are well-oxygenated and high in sulfate, both features which generally do not favor the production of methane. This project aims to elucidate on the cause of this paradox. Based on preliminary results, the investigator identified the potential for methane production stimulated by microbial cycling of dissolved organic matter. Polysaccharides (carbonates such as starch) are a major component of high molecular weight dissolved organic matter (HMWDOM) and they can incorporate esters of methylphosphonate, which may be allowing for the production of methane in surface waters. When these HMWDOM polysaccharides were introduced to seawater samples, the researchers saw production of methane with an anomalous stable carbon isotope ratio comparable to what is seen in the paradoxical surface waters enriched in methane. By making measurements of trace gases, HMWDOM phosphonate, and stable carbon isotope measurements in the western North Atlantic Ocean, the investigator and his collaborators will reassess the preliminary data and the implications of these results for the entire oceanographic cycling of methane. Both educational and outreach efforts have been included. For the educational component, a postdoc, a graduate student, and summer undergraduate students will be work on the project, whereas for the outreach activities, the proponent plans to develop curricula on basic science and oceanography for high school students, include a high school teacher in the research cruise, and integrate results into an organic geochemistry course, the lectures of which will be publically available online. This project seeks to evaluate the possibility that the "marine methane paradox", or the super-saturation of methane in high sulfate, well-oxygenated surface waters, is caused by microbial cycling of dissolved organic matter (DOM). There has been a great deal of preliminary evidence to support this theory. For example, samples from station ALOHA were amended with purified high molecular weight DOM (HMWDOM) polysaccharides, and methane, ethylene, and propylene productions were stimulated. HMWDOM polysaccharides incorporate esters of methylphosphonate (MPn), 2-hydroxyethylphosphonates (2-HEP), and other minor phosphonates, which are likely facilitating the production of methane, ethylene, and propylene. Carbon isotope data supports that this theory is the process behind the marine methane paradox; the d13C value of methane produced from HMWDOM polysaccharide enriched samples agrees well with the anomalous value associated with the super-saturated surface water. Only a small fraction of HMWDOM polysaccharides can easily explain the marine methane paradox, and this process could just as easily fully revise the current understanding of large scale methane cycling between the ocean and atmosphere. The researchers will assess the preliminary evidence and evaluate the microbial DOM cycling theory by making paired trace gas and HMWDOM phosphonate, as well as stable carbon isotope measurements in the western North Atlantic Ocean.
attribute	NC_GLOBAL	projects_0_end_date	String	2019-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Sargasso Sea, Western North Atlantic Ocean
attribute	NC_GLOBAL	projects_0_name	String	Methane, Ethylene, and Dissolved Organic Phosphorus Cycling in the Western North Atlantic Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	765014
attribute	NC_GLOBAL	projects_0_start_date	String	2016-09
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	29.05817
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	Cruise
attribute	NC_GLOBAL	summary	String	Concentration measurements of water column phosphate, nitrate and nitrite, dissolved organic phosphorus, methane, and ethylene from samples collected during the R/V Niel Armstrong cruise AR16 in the western North Atlantic Ocean in May 2017. Seawater was collected from Niskin bottles deployed on a rosette with a CTD.
attribute	NC_GLOBAL	time_coverage_end	String	2017-05-20T16:41:58Z
attribute	NC_GLOBAL	time_coverage_start	String	2017-05-04T14:35:52Z
attribute	NC_GLOBAL	title	String	[Water column methane ethylene and nutrients] - Concentration measurements of water column phosphate, nitrate and nitrite, dissolved organic phosphorus, methane, and ethylene from samples collected during the R/V Neil Armstrong cruise AR16 in the western North Atlantic Ocean in May 2017 (Methane, Ethylene, and Dissolved Organic Phosphorus Cycling in the Western North Atlantic Ocean)
attribute	NC_GLOBAL	version	String	2
attribute	NC_GLOBAL	Westernmost_Easting	double	-71.33867
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Cruise		String
attribute	Cruise	bcodmo_name	String	cruise_id
attribute	Cruise	description	String	cruise identifier
attribute	Cruise	long_name	String	Cruise
attribute	Cruise	units	String	unitless
variable	Station		byte
attribute	Station	_FillValue	byte	127
attribute	Station	actual_range	byte	1, 9
attribute	Station	bcodmo_name	String	station
attribute	Station	description	String	station number
attribute	Station	long_name	String	Station
attribute	Station	units	String	unitless
variable	Cast		byte
attribute	Cast	_FillValue	byte	127
attribute	Cast	actual_range	byte	3, 87
attribute	Cast	bcodmo_name	String	cast
attribute	Cast	description	String	cast number
attribute	Cast	long_name	String	Cast
attribute	Cast	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	29.05817, 40.4025
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 north (positive values = North)
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	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-71.33867, -64.1875
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 east (negative values = West)
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	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.493908552E9, 1.495298518E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	date and time (UTC) formatted to ISO8601 standard; format: yyyy-mm-ddTHH:MM:SS
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	ISO Date Time UTC
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/
attribute	time	source_name	String	ISO_DateTime_UTC
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01T00:00:00Z
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	5.0, 1000.0
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth
attribute	depth	colorBarMaximum	double	8000.0
attribute	depth	colorBarMinimum	double	-8000.0
attribute	depth	colorBarPalette	String	TopographyDepth
attribute	depth	description	String	sample depth
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	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	CH4		float
attribute	CH4	_FillValue	float	NaN
attribute	CH4	actual_range	float	0.59, 4.0
attribute	CH4	bcodmo_name	String	CH4
attribute	CH4	description	String	methane
attribute	CH4	long_name	String	CH4
attribute	CH4	units	String	nanomoles per liter (nmol L-1)
variable	C2H4		String
attribute	C2H4	bcodmo_name	String	unknown
attribute	C2H4	description	String	ethylene
attribute	C2H4	long_name	String	C2 H4
attribute	C2H4	units	String	nanomoles per liter (nmol L-1)
variable	NOx		String
attribute	NOx	bcodmo_name	String	NO3_NO2
attribute	NOx	description	String	nitrate + nitrite
attribute	NOx	long_name	String	NOx
attribute	NOx	units	String	micromoles per liter (umol L-1)
variable	LLN		float
attribute	LLN	_FillValue	float	NaN
attribute	LLN	actual_range	float	0.002, 0.441
attribute	LLN	bcodmo_name	String	Low Level Nitrogen
attribute	LLN	description	String	low level nitrogen (nitrate + nitrite)
attribute	LLN	long_name	String	LLN
attribute	LLN	units	String	micromoles per liter (umol L-1)
variable	PO4		String
attribute	PO4	bcodmo_name	String	PO4
attribute	PO4	description	String	phosphate
attribute	PO4	long_name	String	PO4
attribute	PO4	units	String	micromoles per liter (umol L-1)
variable	SRP		float
attribute	SRP	_FillValue	float	NaN
attribute	SRP	actual_range	float	0.001, 0.132
attribute	SRP	bcodmo_name	String	Soluble reactive phosphorus
attribute	SRP	description	String	soluble reactive phosphorus
attribute	SRP	long_name	String	SRP
attribute	SRP	units	String	micromoles per liter (umol L-1)
variable	TDP		float
attribute	TDP	_FillValue	float	NaN
attribute	TDP	actual_range	float	0.09, 1.66
attribute	TDP	bcodmo_name	String	Total Dissolved Phosphorus
attribute	TDP	description	String	total dissolved phosphorus
attribute	TDP	long_name	String	TDP
attribute	TDP	units	String	micromoles per liter (umol L-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.