ERDDAP > info > bcodmo_dataset_750917

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	[EN589 Aerosol and seawater chemical composition] - Chemical composition of 'model' Primary Marine Aerosol (mPMA) and seawater measured on R/V Endeavor EN589 during Sept. - Oct. 2016 (Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater)		F   I   M	background			BCO-DMO	bcodmo_dataset_750917

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	The ionic data reported in this file were generated by William Keene ([wck@virginia.edu](\\"mailto:wck@virginia.edu\\")) and John Maben and the OCwe data were generated by David Kieber ([djkieber@esf.edu](\\"mailto:djkieber@esf.edu\\")). Please direct any related questions accordingly. Sampling and Analytical Methods: Samples were collected on RV/Endeavor cruise 589. Locations, times, and conditions at the four hydrographic stations are available under Supplemental Documentation. During some periods, size-resolved mPMA was sampled from the generator\u2019s headspace at 30 L min-1 with two non-rotating Multi-Orifice Uniform Deposit Impactors (MOUDIs, [Marple et al., 1991]) operated in parallel. Substrates and back filters from one impactor were analyzed for major ions and those from the other impactor were analyzed for water extractable organic carbon (OCwe). The aerodynamic cut diameters for the impactor\u2019s size fractions were 18, 10, 5.6, 3.2, 1.8, 1.0, 0.56, 0.32, and 0.18 \u00b5m. Impactors were configured with precombusted 47-mm diameter aluminum substrates and 37-mm diameter quartz backup filters. During some periods, bulk mPMA was sampled in parallel at 30 L min-1 on two precombusted 47-mm quartz filters, one of which was analyzed for major ions, OCwe, and surfactants and the other for total OC and radiocarbon age. During two periods, bulk mPMA was sampled in parallel at 30 L min-1 on two 90-mm Teflon filters. One sample was analyzed for major ions and OCwe and the other was stored for photochemical manipulation experiments. After recovery, samples of size-resolved and bulk mPMA for analysis of major ions were transferred to precleaned 10-mL HDPE tubes, stored frozen, subsequently extracted in 5 mL deionized water (DIW), and analyzed at the University of Virginia (UVA) using a Dionex duel channel model ICS 3000 high- performance ion chromatograph (IC). The anion channel was configured with Thermo Scientific Dionex guard (IonPac AG 18: 4 x 50 mm) and analytical separator (IonPac AS 18: 4 x 250mm) columns and electrolytically regenerated suppressor (AERS 500: 4mm). The cation channel was configured Dionex Guard (IonPac CG16: 5 x 50mm) and analytical separator (IonPac CG16: 5 x 250mm) columns and a Thermo Scientific Dionex electrolytically regenerated suppressor (CERS 500: 4mm). Size-segregated mPMA sampled with cascade impactors and in bulk on quartz filters for analysis of OCwe were transferred to precombusted 10-mL Pyrex tubes, extracted immediately after recovery in 5 mL DIW, stored frozen, and analyzed in triplicate with a Shimadzu Model TOC-V CSH carbon analyzer at the State University of New York (SUNY). Bulk mPMA sampled on Teflon filters were extracted immediately after recovery in five sequential aliquots of DIW (total of 25 mL). Subsamples of extracts were stored frozen on site and analyzed for major ions at UVA and for OCwe at SUNY using methods described above. Data for mPMA samples were corrected based on median concentrations of analytes measured in dynamic handling blanks (N = 5 for impactor and 8 for bulk samples) that were loaded and unloaded during the campaign and subsequently processed and analyzed using procedures identical to those used for samples. Unfiltered seawater for analysis of major ions was sampled in precleaned 10-mL HDPE tubes, stored frozen, and analyzed by IC at UVA. Average detection limits (DLs) for mPMA analytes were estimated following Keene et al. [1989, JGR] and are summarized (see Supplemental Documents) Average precisions for inorganic mPMA analytes are estimated to be \u00b14% of the measured concentrations or \u00b10.5*DLs, whichever are the greater absolute values. Precisions for OCwe correspond to the standard deviations for triplicate measurements. Measured concentrations of all ionic constituents in seawater were substantially higher than estimated DLs. Average precisions are approximately \u00b12% of the measured concentrations. Refer to the following papers for additional details regarding the design and operation of the marine aerosol generator, analytical methods, and data quality.
attribute	NC_GLOBAL	awards_0_award_nid	String	708309
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1536608
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1536608
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	awards_1_award_nid	String	708317
attribute	NC_GLOBAL	awards_1_award_number	String	OCE-1536605
attribute	NC_GLOBAL	awards_1_data_url	String	https://www.nsf.gov/awardsearch/showAward?AWD_ID=1536605
attribute	NC_GLOBAL	awards_1_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_1_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_1_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_1_program_manager	String	Henrietta N Edmonds
attribute	NC_GLOBAL	awards_1_program_manager_nid	String	51517
attribute	NC_GLOBAL	awards_2_award_nid	String	708320
attribute	NC_GLOBAL	awards_2_award_number	String	OCE-1536674
attribute	NC_GLOBAL	awards_2_data_url	String	https://www.nsf.gov/awardsearch/showAward?AWD_ID=1536674
attribute	NC_GLOBAL	awards_2_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_2_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_2_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_2_program_manager	String	Henrietta N Edmonds
attribute	NC_GLOBAL	awards_2_program_manager_nid	String	51517
attribute	NC_GLOBAL	awards_3_award_nid	String	708323
attribute	NC_GLOBAL	awards_3_award_number	String	OCE-1536597
attribute	NC_GLOBAL	awards_3_data_url	String	https://www.nsf.gov/awardsearch/showAward?AWD_ID=1536597
attribute	NC_GLOBAL	awards_3_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_3_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_3_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_3_program_manager	String	Henrietta N Edmonds
attribute	NC_GLOBAL	awards_3_program_manager_nid	String	51517
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	EN589 Aerosol and Seawater Composition PI: W. Keene (UVA) version: 2018-12-31
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	2018-12-05T19:26:56Z
attribute	NC_GLOBAL	date_modified	String	2019-03-18T13:45:54Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.750917.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.78
attribute	NC_GLOBAL	geospatial_lat_max	double	41.4
attribute	NC_GLOBAL	geospatial_lat_min	double	35.04
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.78
attribute	NC_GLOBAL	geospatial_lon_min	double	-71.16
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/750917
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	TOC analyzer
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used to measure total organic carbon concentration
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	750939
attribute	NC_GLOBAL	instruments_0_description	String	A unit that accurately determines the carbon concentrations of organic compounds typically by detecting and measuring its combustion product (CO2). See description document at: http://bcodata.whoi.edu/LaurentianGreatLakes_Chemistry/bs116.pdf
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB04/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Total Organic Carbon Analyzer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	652
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Shimadzu Model TOC-V CSH carbon analyzer
attribute	NC_GLOBAL	keywords	String	aerodynamic, bco, bco-dmo, biological, campaign, Campaign_Sequence_Number, chemical, CI_50_Aerodynamic_Cut_Diam, comments, cut, data, dataset, date, depth, diam, dmo, end, erddap, iso, ISO_DateTime_local_end, latitude, local, longitude, management, number, oceanography, ocwe, OCwe_STD, office, preliminary, profiler, S_Sample_Location, salinity, salinity-temperature-depth, sample, Sample_ID, Sample_Type, sequence, so4, start, std, temperature, time, type
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/750917/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/750917
attribute	NC_GLOBAL	Northernmost_Northing	double	41.4
attribute	NC_GLOBAL	param_mapping	String	{'750917': {'lat': 'master - latitude', 'lon': 'master - longitude', 'ISO_DateTime_local_start': 'flag - time'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/750917/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Virginia
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UVA
attribute	NC_GLOBAL	people_0_person_name	String	William C. Keene
attribute	NC_GLOBAL	people_0_person_nid	String	708330
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	Nancy Copley
attribute	NC_GLOBAL	people_1_person_nid	String	50396
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	Refractory DOC Recycling
attribute	NC_GLOBAL	projects_0_acronym	String	Refractory DOC Recycling
attribute	NC_GLOBAL	projects_0_description	String	The oceans hold a massive quantity of organic carbon that is greater than all terrestrial organic carbon biomass combined. Nearly all marine organic carbon is dissolved and more than 95% is refractory, and cycled through the oceans several times before complete removal. Refractory dissolved organic carbon (RDOC) concentrations are uniform with depth in the water column and represent the "background" carbon present throughout the oceans. However, very little is known regarding RDOC production and removal processes. One potential removal pathway is through adsorption of RDOC onto surfaces of rising bubbles produced by breaking waves and ejection via bubble bursting into the atmosphere. Building on prior research, the investigators will evaluate the importance of ocean- atmosphere processing in recycling marine RDOC during a research cruise in the northwestern Atlantic Ocean. Results of the research will provide important insights regarding the coupled ocean-atmosphere loss of RDOC, thereby improving understanding of and ability to predict the role of RDOC in oceanic and atmospheric biogeochemistry, the global carbon cycle, and Earth's climate. The research will involve three early career faculty, and will provide training for undergraduate and graduate researchers. Recent results based on a limited set of observations indicate that the organic matter (OM) associated with primary marine aerosol (PMA) produced by bursting bubbles from breaking waves at the sea surface is comprised partly to wholly of RDOC rather than OM of recent biological origin as has been widely assumed. The injection of RDOC into the atmosphere in association with PMA and its subsequent photochemical oxidation is a potentially important and hitherto unrecognized sink for RDOC in the oceans of sufficient magnitude to close the marine carbon budget and help resolve a long-standing conundrum regarding removal mechanisms for marine RDOC. This project will involve a shipboard investigation and modeling study to (1) quantify the relative contributions of marine refractory dissolved organic carbon (RDOC) to primary marine aerosol organic matter (PMA OM) produced from near-surface seawater in biologically productive and oligotrophic regions and from North Atlantic Deep Water, and to (2) determine the importance of atmospheric photochemical processing as a recycling pathway for RDOC. To test these hypotheses, a high-capacity aerosol generator will be deployed at four hydrographic stations in the NW Atlantic Ocean to characterize (1) the natural abundance of 14C in PMA and in surface and deep seawater; (2) the surface tension and physical properties of bubble plumes; (3) size-resolved production fluxes, chemical composition, organic carbon enrichments, spectral absorbance, and photochemical evolution of PMA; and (4) the carbon content, optical properties, and physical properties of seawater. The importance of RDOC recycling via PMA production and photochemical evolution will be interpreted with model calculations. EN589 Cruise Track
attribute	NC_GLOBAL	projects_0_end_date	String	2018-12
attribute	NC_GLOBAL	projects_0_geolocation	String	Northwest Atlantic Ocean
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater
attribute	NC_GLOBAL	projects_0_project_nid	String	708310
attribute	NC_GLOBAL	projects_0_start_date	String	2015-09
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	35.04
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	This dataset describes the ionic composition of western North Atlantic seawater and the corresponding chemical composition of mPMA produced from that seawater in a high-capacity generator over ranges of operating conditions. Measurements were taken during cruise EN589 on RV/Endeavor during September and October 2016.
attribute	NC_GLOBAL	time_coverage_end	String	2016-10-14T14:37:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2016-09-18T09:55:00Z
attribute	NC_GLOBAL	title	String	[EN589 Aerosol and seawater chemical composition] - Chemical composition of 'model' Primary Marine Aerosol (mPMA) and seawater measured on R/V Endeavor EN589 during Sept. - Oct. 2016 (Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-71.16
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Campaign_Sequence_Number		short
attribute	Campaign_Sequence_Number	_FillValue	short	32767
attribute	Campaign_Sequence_Number	actual_range	short	26, 316
attribute	Campaign_Sequence_Number	bcodmo_name	String	sample
attribute	Campaign_Sequence_Number	colorBarMaximum	double	100.0
attribute	Campaign_Sequence_Number	colorBarMinimum	double	0.0
attribute	Campaign_Sequence_Number	description	String	Campaign sequence number corresponding to a given set of generator operating conditions as detailed in the companion file (EN589 Marine Aerosol Generator Operating Conditions).
attribute	Campaign_Sequence_Number	long_name	String	Campaign Sequence Number
attribute	Campaign_Sequence_Number	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/ACYC/
attribute	Campaign_Sequence_Number	units	String	unitless
variable	Sample_Type		String
attribute	Sample_Type	bcodmo_name	String	sample_type
attribute	Sample_Type	description	String	Sample type: Size-resolved mPMA sampled with a cascade impactor (CI); bulk mPMA sampled on a quartz filter (B); bulk mPMA sampled on a Teflon filter for photochemical manipulation experiments (P); or seawater (S).
attribute	Sample_Type	long_name	String	Sample Type
attribute	Sample_Type	units	String	unitless
variable	Sample_ID		byte
attribute	Sample_ID	_FillValue	byte	127
attribute	Sample_ID	actual_range	byte	1, 33
attribute	Sample_ID	bcodmo_name	String	sample
attribute	Sample_ID	description	String	Sample ID number
attribute	Sample_ID	long_name	String	Sample ID
attribute	Sample_ID	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/ACYC/
attribute	Sample_ID	units	String	unitless
variable	CI_50_Aerodynamic_Cut_Diam		String
attribute	CI_50_Aerodynamic_Cut_Diam	bcodmo_name	String	unknown
attribute	CI_50_Aerodynamic_Cut_Diam	description	String	Aerodynamic cut diameter for CI samples (µm at ambient relative humidity).
attribute	CI_50_Aerodynamic_Cut_Diam	long_name	String	CI 50 Aerodynamic Cut Diam
attribute	CI_50_Aerodynamic_Cut_Diam	units	String	micrometers
variable	S_Sample_Location		String
attribute	S_Sample_Location	bcodmo_name	String	unknown
attribute	S_Sample_Location	description	String	Location at which seawater was sampled (I denotes inlet to generator; O denotes outlet from generator). Duplicate measurements at the same time and location are denoted by 'Dup'.
attribute	S_Sample_Location	long_name	String	S Sample Location
attribute	S_Sample_Location	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	35.04, 41.4
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	general latitude of sampling; north is positive [added by BCO-DMO from supplemental doc]
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	-71.16, -64.78
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	general longitude of sampling; east is positive [added by BCO-DMO from supplemental doc]
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	1.4741925E9, 1.47645582E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_Local
attribute	time	description	String	Size-resolved and bulk mPMA sample start date and time or seawater sampling date and time; ISO 8601:2004E format.
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	ISO Date Time Local Start
attribute	time	source_name	String	ISO_DateTime_local_start
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	ISO_DateTime_local_end		String
attribute	ISO_DateTime_local_end	bcodmo_name	String	ISO_DateTime_Local
attribute	ISO_DateTime_local_end	description	String	Size-resolved and bulk mPMA sample stop date and time; ISO 8601:2004E format.
attribute	ISO_DateTime_local_end	long_name	String	ISO Date Time Local End
attribute	ISO_DateTime_local_end	units	String	unitless
variable	Cl		float
attribute	Cl	_FillValue	float	NaN
attribute	Cl	actual_range	float	37.64, 593038.0
attribute	Cl	bcodmo_name	String	chloride
attribute	Cl	description	String	Cl- concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	Cl	long_name	String	CL
attribute	Cl	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	Br		float
attribute	Br	_FillValue	float	NaN
attribute	Br	actual_range	float	0.05, 878.0
attribute	Br	bcodmo_name	String	bromides
attribute	Br	description	String	Br- concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	Br	long_name	String	BR
attribute	Br	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	SO4		float
attribute	SO4	_FillValue	float	NaN
attribute	SO4	actual_range	float	1.78, 30768.0
attribute	SO4	bcodmo_name	String	SO4
attribute	SO4	description	String	SO42- concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	SO4	long_name	String	SO4
attribute	SO4	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/SPHTMAXX/
attribute	SO4	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	Na		float
attribute	Na	_FillValue	float	NaN
attribute	Na	actual_range	float	32.12, 508094.0
attribute	Na	bcodmo_name	String	Na
attribute	Na	description	String	Na+ concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	Na	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	K		float
attribute	K	_FillValue	float	NaN
attribute	K	actual_range	float	0.0, 10305.0
attribute	K	bcodmo_name	String	K
attribute	K	description	String	K+ concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	K	long_name	String	K
attribute	K	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	Mg		float
attribute	Mg	_FillValue	float	NaN
attribute	Mg	actual_range	float	2.88, 54581.0
attribute	Mg	bcodmo_name	String	Mg
attribute	Mg	description	String	Mg2+ concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	Mg	long_name	String	MG
attribute	Mg	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	Ca		float
attribute	Ca	_FillValue	float	NaN
attribute	Ca	actual_range	float	0.07, 11080.0
attribute	Ca	bcodmo_name	String	Ca
attribute	Ca	description	String	Ca2+ concentration: For mPMA in nmol m-3 air; for seawater in µM.
attribute	Ca	long_name	String	Ca
attribute	Ca	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	OCwe		float
attribute	OCwe	_FillValue	float	NaN
attribute	OCwe	actual_range	float	1.51, 66.59
attribute	OCwe	bcodmo_name	String	C_org
attribute	OCwe	description	String	Water-extractable organic carbon (OCwe) concentration for mPMA in nmol C m-3 air.
attribute	OCwe	long_name	String	OCwe
attribute	OCwe	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CORGCOZX/
attribute	OCwe	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	OCwe_STD		float
attribute	OCwe_STD	_FillValue	float	NaN
attribute	OCwe_STD	actual_range	float	0.01, 2.88
attribute	OCwe_STD	bcodmo_name	String	C_org
attribute	OCwe_STD	description	String	OCwe precision for mPMA in nmol C m-3 air
attribute	OCwe_STD	long_name	String	OCwe STD
attribute	OCwe_STD	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CORGCOZX/
attribute	OCwe_STD	units	String	nanomol/cubic meter (nmol m-3) for mPMA; micromol (µM) for S
variable	Comments		String
attribute	Comments	bcodmo_name	String	comment
attribute	Comments	description	String	Comments
attribute	Comments	long_name	String	Comments
attribute	Comments	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.