ERDDAP > info > bcodmo_dataset_762849

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	[AR16 Water column nutrients] - Water column nutrient data from RV/Neil Armstrong cruise AR16, May 2017 (Redox Cycling of Phosphorus in the Western North Atlantic Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_762849

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 during a cruise in May 2017. Seawater was collected from Niskin bottles deployed on a rosette with a CTD. Samples were pre-filtered through a 0.2 micrometer filter into a 50 mL Falcon tube and frozen at -20 degrees C. Samples were shipped frozen to the University of Washington Marine Chemistry Laboratory. Samples were analyzed on a Technicon AAII Autoanalyzer.\u00a0 Analytical methods (from [https://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory](\\"https://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory\\")): Analysis | Method Reference | EPA/SM# | MELAC Code ---|---|---|--- PO4 | UNESCO(1994) | EPA 365.5_1.4_1997 | WM920270 Si(OH)4 | UNESCO(1994) | EPA 366 | WM920240 NO3 | UNESCO(1994) | EPA 353.4_2_1997 | 10068209 NO2 | UNESCO(1994) | EPA 353.4_2_1997 | 10068209 NH4 | UNESCO(1994) | EPA 349 | WM920220
attribute	NC_GLOBAL	awards_0_award_nid	String	746564
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1536346
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1536346
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	Water column nutrient data from RV/Neil Armstrong AR16, May 2017 PI: B. Van Mooy (WHOI) version date: 2019-03-21
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	2019-03-21T13:22:22Z
attribute	NC_GLOBAL	date_modified	String	2019-05-30T19:36:07Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.762849.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.44075
attribute	NC_GLOBAL	geospatial_lat_max	double	40.59278
attribute	NC_GLOBAL	geospatial_lat_min	double	29.16425
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.44075
attribute	NC_GLOBAL	geospatial_lon_min	double	-71.21921
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	204.0
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/762849
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	762857
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_1_acronym	String	CTD
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	762856
attribute	NC_GLOBAL	instruments_1_description	String	The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column and permits scientists observe the physical properties in real time via a conducting cable connecting the CTD to a deck unit and computer on the ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast. This instrument designation is used when specific make and model are not known.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/130/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	CTD profiler
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	417
attribute	NC_GLOBAL	instruments_2_acronym	String	Nutrient Autoanalyzer
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	762874
attribute	NC_GLOBAL	instruments_2_description	String	Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB04/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Nutrient Autoanalyzer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	558
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Technicon AAII Autoanalyzer
attribute	NC_GLOBAL	keywords	String	ammonium, bco, bco-dmo, biological, cast, chemical, chemistry, concentration, conductivity, ctd, CTD_Cast, data, dataset, date, depth, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Ocean Chemistry > Silicate, erddap, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mass_concentration_of_silicate_in_sea_water, nh4, nitrate, nitrite, no2, no3, ocean, oceanography, oceans, office, phosphate, po4, preliminary, science, sea, seawater, silicate, sonde, station, temperature, time, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/762849/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/762849
attribute	NC_GLOBAL	Northernmost_Northing	double	40.59278
attribute	NC_GLOBAL	param_mapping	String	{'762849': {'Date': 'flag - time', 'lat': 'flag - latitude', 'Depth': 'flag - depth', 'lon': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/762849/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Rhode Island
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	URI-GSO
attribute	NC_GLOBAL	people_0_person_name	String	Benjamin A.S. Van Mooy
attribute	NC_GLOBAL	people_0_person_nid	String	50975
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	Phosphorus Redox Cycling
attribute	NC_GLOBAL	projects_0_acronym	String	Phosphorus Redox Cycling
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: Redox Cycling of Phosphorus in the Western North Atlantic Ocean Benjamin Van Mooy ID: 1536346 Understanding controls on the growth of plankton in the upper ocean, which plays an essential role in the sequestration of carbon dioxide, is an important endeavor for chemical oceanography. Phosphorus is an essential element for marine plankton, and has been a research focus of chemical oceanography for nearly a century. Yet, phosphorus redox cycling rates are almost completely unknown throughout the ocean, and the specific molecular identities of the phosphonates, a form of phosphate, in seawater have defied elucidation. This project will explore and refine entirely new pathways for the biological cycling of phosphorus. This project will support teaching and learning by funding the PhD research of a graduate student, and through the continuation of conducting K-12 classroom laboratory modules and hosting 6-8th grade science fair participants in the investigator's lab. Phosphorus has never been viewed by oceanographers as an element that actively undergoes chemical redox reactions in the water column, and it was believed to occur only in the +5 valence state, in compounds such as phosphate. However, over the last 17 years, numerous lines of geochemical and genomic information have emerged to show that phosphorus in the +3 valence state (P(+3)), particularly dissolved phosphonate compounds, may play a very important role within open ocean planktonic communities. This is particularly true in oligotrophic gyres such as the Sargasso Sea, where growth of phytoplankton can be limited by the scarcity of phosphate. To better understand these new data, the investigators will design and execute a research program that spans at-sea chemical oceanographic experimentation, state-of-the-art chromatography and mass spectrometry, and novel organic synthesis of 33P-labeled P(+3) compounds. Specifically, they will answer questions about rates of production and consumption of low molecular weight P(+3) compounds, the impact of phosphate availability on the production and consumption of P(+3) compounds, and the groups of phytoplankton that utilize low molecular weight P(+3) compounds. Results of this project have the potential to contribute to the transformation of our understanding of the marine phosphorus cycle.
attribute	NC_GLOBAL	projects_0_end_date	String	2018-09
attribute	NC_GLOBAL	projects_0_geolocation	String	western north Atlantic
attribute	NC_GLOBAL	projects_0_name	String	Redox Cycling of Phosphorus in the Western North Atlantic Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	746565
attribute	NC_GLOBAL	projects_0_start_date	String	2015-10
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	29.16425
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	This dataset includes water column nutrient data from RV/Neil Armstrong cruise AR16, May 2017: silicate, nitrate, nitrite, and ammonium concentrations.
attribute	NC_GLOBAL	time_coverage_end	String	2017-05-20
attribute	NC_GLOBAL	time_coverage_start	String	2017-05-04
attribute	NC_GLOBAL	title	String	[AR16 Water column nutrients] - Water column nutrient data from RV/Neil Armstrong cruise AR16, May 2017 (Redox Cycling of Phosphorus in the Western North Atlantic Ocean)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-71.21921
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
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	Numeric identifier for the station where the data was collected.
attribute	Station	long_name	String	Station
attribute	Station	units	String	unitless
variable	CTD_Cast		byte
attribute	CTD_Cast	_FillValue	byte	127
attribute	CTD_Cast	actual_range	byte	1, 87
attribute	CTD_Cast	bcodmo_name	String	cast
attribute	CTD_Cast	description	String	Numeric identifier for the CTD cast where the data was collected.
attribute	CTD_Cast	long_name	String	CTD Cast
attribute	CTD_Cast	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	29.16425, 40.59278
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 is positive
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	-71.21921, -64.44075
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 is positive
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	1.493856E9, 1.4952384E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	date_utc
attribute	time	description	String	UTC sampling date formatted as yyyy-mm-dd.
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Date
attribute	time	source_name	String	Date
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01
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, 204.0
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	Depth at which the samples were collected.
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	PO4		float
attribute	PO4	_FillValue	float	NaN
attribute	PO4	actual_range	float	0.02, 0.68
attribute	PO4	bcodmo_name	String	PO4
attribute	PO4	description	String	Phosphate concentration.Samples were NOT pre-concentrated with MAGIC; bdl = 0.014 umol per liter
attribute	PO4	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4	units	String	umol per liter
variable	Silicate		float
attribute	Silicate	_FillValue	float	NaN
attribute	Silicate	actual_range	float	0.54, 5.39
attribute	Silicate	bcodmo_name	String	SiOH_4
attribute	Silicate	description	String	Silica concentration; bdl = 0.23 umol per liter
attribute	Silicate	long_name	String	Mass Concentration Of Silicate In Sea Water
attribute	Silicate	units	String	umol per liter
variable	NO3		String
attribute	NO3	bcodmo_name	String	NO3
attribute	NO3	description	String	Nitrate concentration; bdl = 0.288 umol per liter
attribute	NO3	long_name	String	NO3
attribute	NO3	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/NTRAIGGS/
attribute	NO3	units	String	umol per liter
variable	NO2		String
attribute	NO2	bcodmo_name	String	NO2
attribute	NO2	description	String	Nitrite concentration; bdl = 0.011 umol per liter
attribute	NO2	long_name	String	NO2
attribute	NO2	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/
attribute	NO2	units	String	umol per liter
variable	NH4		String
attribute	NH4	bcodmo_name	String	Ammonium
attribute	NH4	description	String	Ammonium concentration; bdl = 0.047 umol per liter
attribute	NH4	long_name	String	NH4
attribute	NH4	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/
attribute	NH4	units	String	umol per liter

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.