ERDDAP > info > bcodmo_dataset_809612

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	[GN01 Silicon Stable Isotopes] - Depth profiles of the isotopic composition (d30Si) of silicon within dissolved silicic acid on the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)		F   I   M	background			BCO-DMO	bcodmo_dataset_809612

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	Samples collected from Niskin bottles using the GEOTRACES ODF CTD-rosette system. (Note on niskin trip depths reported in dataset: multiple bottles were tripped to collect sample water; these samples were linked to the Niskin number having both oxygen and salinity bottle data.) Seawater samples for \u03b430Si measurements were collected using a Oceanographic Data Facilitiy\u2019s (ODF, Scripps Institution of Oceanography) CTD-rosette mounted with Niskin samplers and a Sea-Bird Electronics CTD (SBE9plus). Seawater was gravity filtered into polypropylene containers through in-line Supor filter capsules (0.8/0.45 \u00b5m) attached directly to each Niskin bottle. Sample bottles were capped and stored without preservative in the dark. Back in the laboratory, the silicon from seawater was precipitated of as trimethylamine silicomolybdate using a high purity triethlyamine ammonium molybdate solution (TEA-Moly). The precipitate was isolated by filtration onto a polycarbonate filter and purified by high temperature combustion to produce solid silicon dioxide. SiO2 was then converted to solid Cs2SiF6 by dissolution in HF and addition of CsCl. The Cs2SiF6 was rinsed with ethanol, dried and dissolved in high purity (>18M\u03a9) water. BaSiF6 was precipitated by the addition of BaCl, rinsed with ethanol and dried. Isotopic ratio analysis was performed using a Nu Perspective isotope ratio mass spectrometer equipped with a Nu Sil inlet system. Samples as BaSiF6 are loaded into sample vials that are placed in a sample carousel in the Nu Sil. Samples are sequentially heated to 590\u00b0C. Isotope delta values are normalized against the international standard NBS28. For more information, see the Protocol document\u00a0(under Supplemental Files).
attribute	NC_GLOBAL	awards_0_award_nid	String	809607
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1434305
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1434305
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	Silicon Stable Isotopes U.S. GEOTRACES Arctic - HLY1502 (GN01) PI: Mark Brzezinski (UCSB) Contact: Janice Jones (UCSB) Version date: 17 April 2020
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	2020-04-17T16:17:51Z
attribute	NC_GLOBAL	date_modified	String	2020-04-20T14:41:35Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.26008/1912/bco-dmo.809612.1
attribute	NC_GLOBAL	Easternmost_Easting	double	179.1997
attribute	NC_GLOBAL	geospatial_lat_max	double	89.9876
attribute	NC_GLOBAL	geospatial_lat_min	double	65.8093
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	179.1997
attribute	NC_GLOBAL	geospatial_lon_min	double	-179.8086
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	4200.1
attribute	NC_GLOBAL	geospatial_vertical_min	double	2.0
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/809612
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Niskin bottle
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Samples were collected from Niskin bottles using the GEOTRACES ODF CTD-rosette system.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	809622
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 Sea-Bird
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Seawater samples for δ30Si measurements were collected using a Oceanographic Data Facilitiy’s (ODF, Scripps Institution of Oceanography) CTD-rosette mounted with Niskin samplers and a Sea-Bird Electronics CTD (SBE9plus).
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	809623
attribute	NC_GLOBAL	instruments_1_description	String	Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.
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 Sea-Bird
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	447
attribute	NC_GLOBAL	instruments_1_supplied_name	String	SBE9plus
attribute	NC_GLOBAL	instruments_2_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Isotopic ratio analysis was performed using a Nu Perspective isotope ratio mass spectrometer equipped with a Nu Sil inlet system.
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	809624
attribute	NC_GLOBAL	instruments_2_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_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Nu Perspective isotope ratio mass spectrometer
attribute	NC_GLOBAL	keywords	String	5ib7da, bco, bco-dmo, biological, bottle, chemical, chemistry, concentration, data, dataset, date, delta, depth, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Silicate, end, End_Date_UTC, End_ISO_DateTime_UTC, End_Latitude, End_Longitude, End_Time_UTC, erddap, event, Event_ID, flag, Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da, iso, latitude, longitude, management, mass, mass_concentration_of_silicate_in_sea_water, ocean, oceanography, oceans, office, preliminary, sample, Sample_Depth, Sample_ID, science, SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da, sea, seawater, silicate, SILICATE_30_28_D_DELTA_BOTTLE_5ib7da, start, Start_Date_UTC, Start_Time_UTC, station, Station_ID, time, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/809612/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/809612
attribute	NC_GLOBAL	Northernmost_Northing	double	89.9876
attribute	NC_GLOBAL	param_mapping	String	{'809612': {'Start_ISO_DateTime_UTC': 'flag - time', 'Sample_Depth': 'flag - depth', 'Start_Longitude': 'flag - longitude', 'Start_Latitude': 'flag - latitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/809612/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of California-Santa Barbara
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UCSB-MSI
attribute	NC_GLOBAL	people_0_person_name	String	Mark A. Brzezinski
attribute	NC_GLOBAL	people_0_person_nid	String	50663
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 California-Santa Barbara
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	UCSB
attribute	NC_GLOBAL	people_1_person_name	String	Janice L. Jones
attribute	NC_GLOBAL	people_1_person_nid	String	51661
attribute	NC_GLOBAL	people_1_role	String	Contact
attribute	NC_GLOBAL	people_1_role_type	String	related
attribute	NC_GLOBAL	people_2_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_2_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_2_person_nid	String	51498
attribute	NC_GLOBAL	people_2_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	project	String	U.S. GEOTRACES Arctic,GEOTRACES Arctic Si Isotopes
attribute	NC_GLOBAL	projects_0_acronym	String	U.S. GEOTRACES Arctic
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: In pursuit of its goal "to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions", in 2015 the International GEOTRACES Program will embark on several years of research in the Arctic Ocean. In a region where climate warming and general environmental change are occurring at amazing speed, research such as this is important for understanding the current state of Arctic Ocean geochemistry and for developing predictive capability as the regional ecosystem continues to warm and influence global oceanic and climatic conditions. The three investigators funded on this award, will manage a large team of U.S.scientists who will compete through the regular NSF proposal process to contribute their own unique expertise in marine trace metal, isotopic, and carbon cycle geochemistry to the U.S. effort. The three managers will be responsible for arranging and overseeing at-sea technical services such as hydrographic measurements, nutrient analyses, and around-the-clock management of on-deck sampling activites upon which all participants depend, and for organizing all pre- and post-cruise technical support and scientific meetings. The management team will also lead educational outreach activities for the general public in Nome and Barrow, Alaska, to explain the significance of the study to these communities and to learn from residents' insights on observed changes in the marine system. The project itself will provide for the support and training of a number of pre-doctoral students and post-doctoral researchers. Inasmuch as the Arctic Ocean is an epicenter of global climate change, findings of this study are expected to advance present capability to forecast changes in regional and globlal ecosystem and climate system functioning. As the United States' contribution to the International GEOTRACES Arctic Ocean initiative, this project will be part of an ongoing multi-national effort to further scientific knowledge about trace elements and isotopes in the world ocean. This U.S. expedition will focus on the western Arctic Ocean in the boreal summer of 2015. The scientific team will consist of the management team funded through this award plus a team of scientists from U.S. academic institutions who will have successfully competed for and received NSF funds for specific science projects in time to participate in the final stages of cruise planning. The cruise track segments will include the Bering Strait, Chukchi shelf, and the deep Canada Basin. Several stations will be designated as so-called super stations for intense study of atmospheric aerosols, sea ice, and sediment chemistry as well as water-column processes. In total, the set of coordinated international expeditions will involve the deployment of ice-capable research ships from 6 nations (US, Canada, Germany, Sweden, UK, and Russia) across different parts of the Arctic Ocean, and application of state-of-the-art methods to unravel the complex dynamics of trace metals and isotopes that are important as oceanographic and biogeochemical tracers in the sea.
attribute	NC_GLOBAL	projects_0_end_date	String	2017-06
attribute	NC_GLOBAL	projects_0_geolocation	String	Arctic Ocean; Sailing from Dutch Harbor to Dutch Harbor
attribute	NC_GLOBAL	projects_0_name	String	U.S. Arctic GEOTRACES Study
attribute	NC_GLOBAL	projects_0_project_nid	String	638812
attribute	NC_GLOBAL	projects_0_start_date	String	2014-07
attribute	NC_GLOBAL	projects_1_acronym	String	GEOTRACES Arctic Si Isotopes
attribute	NC_GLOBAL	projects_1_description	String	NSF Award Abstract: An investigator will participate in the 2015 U.S. GEOTRACES Arctic Ocean expedition and measure silicon isotopes composition of silicic acid in seawater samples, as well as diatoms and sea ice. In common with other multinational initiatives in the International GEOTRACES program, the goals of the U.S. Arctic expedition are to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions. Some trace elements are essential to life, others are known biological toxins, and still others are important because they can be used as tracers of a variety of physical, chemical, and biological processes in the sea. As silicon is a key component of diatom shells, the measurement of their concentrations in this study can provide an important indicator of primary productivity, both in the present day, as well as past oceans. The project will provide training for undergraduate students and a post-doctoral researcher in silicon chemistry, as well as include outreach to K-12 students. The silicon isotope proxy is increasingly being used to assess the role of diatoms and silicic acid supply to past shifts in ocean productivity and their role in Earth's climate. Application of the proxy requires knowledge of the silicon isotopic composition of ventilating water masses. Uncertainty in these values translates directly into uncertainty in the level of productivity implied by the proxy. The growing global data set of silicon isotopes in marine waters suggest that silicon isotopes in subsurface waters are not uniform, but vary systematically driven by interactions between silicon isotope fractionation, the biological pump and thermohaline circulation. In addition, significant anomalies exist between model predictions and observations. In this study, researchers will test hypotheses regarding the origin of this signal and the mechanisms controlling silicon isotope distributions within the Arctic Ocean by greatly expanding the silicon isotope data set for this region. The overarching hypothesis to be tested is that silicon isotope distributions are controlled by the coupling of silicon fractionation during silica production and during silica dissolution to the biological pump and to the meridional overturning circulation.
attribute	NC_GLOBAL	projects_1_end_date	String	2019-12
attribute	NC_GLOBAL	projects_1_name	String	GEOTRACES Arctic Section: Diagnosing the unique silicon isotope composition of the Arctic Ocean
attribute	NC_GLOBAL	projects_1_project_nid	String	809608
attribute	NC_GLOBAL	projects_1_start_date	String	2015-01
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	65.8093
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	The isotopic composition of dissolved silicon (\u03b430Si) has proven to be a powerful tool to better understand the marine Si cycle. The \u03b430Si of seawater carries information about DSi utilization in surface waters, the subsequent dissolution of sinking biogenic material as well as water mass mixing. This data set supplies information on the spatial distribution of isotopes of Si within water masses in the Arctic Ocean from the Bering Strait to the north pole. Profiles of silicon isotopes within silicic acid, \u03b430Si(OH)4, were obtained at a total of 15 stations on the GEOTRACES GN01 cruise
attribute	NC_GLOBAL	time_coverage_end	String	2015-10-07T16:02Z
attribute	NC_GLOBAL	time_coverage_start	String	2015-08-16T07:23Z
attribute	NC_GLOBAL	title	String	[GN01 Silicon Stable Isotopes] - Depth profiles of the isotopic composition (d30Si) of silicon within dissolved silicic acid on the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-179.8086
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Station_ID		byte
attribute	Station_ID	_FillValue	byte	127
attribute	Station_ID	actual_range	byte	4, 66
attribute	Station_ID	bcodmo_name	String	station
attribute	Station_ID	description	String	Sampling station
attribute	Station_ID	long_name	String	Station ID
attribute	Station_ID	units	String	unitless
variable	Start_Date_UTC		String
attribute	Start_Date_UTC	bcodmo_name	String	date
attribute	Start_Date_UTC	description	String	CTD start date (UTC); format: yyyy-mm-dd
attribute	Start_Date_UTC	long_name	String	Start Date UTC
attribute	Start_Date_UTC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	Start_Date_UTC	time_precision	String	1970-01-01
attribute	Start_Date_UTC	units	String	unitless
variable	Start_Time_UTC		String
attribute	Start_Time_UTC	bcodmo_name	String	time
attribute	Start_Time_UTC	description	String	CTD start time (UTC); format: HH:MM
attribute	Start_Time_UTC	long_name	String	Start Time UTC
attribute	Start_Time_UTC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/
attribute	Start_Time_UTC	units	String	unitless
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.43970978E9, 1.44423372E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	CTD start date and time (UTC) in ISO8601 format: yyyy-mm-ddTHH:MMZ
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Start ISO Date Time UTC
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/
attribute	time	source_name	String	Start_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	1970-01-01T00:00Z
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	End_Date_UTC		String
attribute	End_Date_UTC	bcodmo_name	String	date
attribute	End_Date_UTC	description	String	CTD end date (UTC); format: yyyy-mm-dd
attribute	End_Date_UTC	long_name	String	End Date UTC
attribute	End_Date_UTC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	End_Date_UTC	time_precision	String	1970-01-01
attribute	End_Date_UTC	units	String	unitless
variable	End_Time_UTC		String
attribute	End_Time_UTC	bcodmo_name	String	time
attribute	End_Time_UTC	description	String	CTD end time (UTC); format: HH:MM
attribute	End_Time_UTC	long_name	String	End Time UTC
attribute	End_Time_UTC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/
attribute	End_Time_UTC	units	String	unitless
variable	End_ISO_DateTime_UTC		String
attribute	End_ISO_DateTime_UTC	bcodmo_name	String	ISO_DateTime_UTC
attribute	End_ISO_DateTime_UTC	description	String	CTD end date and time (UTC) in ISO8601 format: yyyy-mm-ddTHH:MMZ
attribute	End_ISO_DateTime_UTC	long_name	String	End ISO Date Time UTC
attribute	End_ISO_DateTime_UTC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/
attribute	End_ISO_DateTime_UTC	time_precision	String	1970-01-01T00:00Z
attribute	End_ISO_DateTime_UTC	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	65.8093, 89.9876
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	CTD start latitude in decimal degrees
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	source_name	String	Start_Latitude
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	-179.8086, 179.1997
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	CTD start longitude in decimal degrees
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	source_name	String	Start_Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	End_Latitude		float
attribute	End_Latitude	_FillValue	float	NaN
attribute	End_Latitude	actual_range	float	65.8093, 89.9881
attribute	End_Latitude	bcodmo_name	String	latitude
attribute	End_Latitude	colorBarMaximum	double	90.0
attribute	End_Latitude	colorBarMinimum	double	-90.0
attribute	End_Latitude	description	String	CTD end latitude in decimal degrees
attribute	End_Latitude	long_name	String	Latitude
attribute	End_Latitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LATX/
attribute	End_Latitude	standard_name	String	latitude
attribute	End_Latitude	units	String	decimal degrees
variable	End_Longitude		float
attribute	End_Longitude	_FillValue	float	NaN
attribute	End_Longitude	actual_range	float	-179.81, 179.3519
attribute	End_Longitude	bcodmo_name	String	longitude
attribute	End_Longitude	colorBarMaximum	double	180.0
attribute	End_Longitude	colorBarMinimum	double	-180.0
attribute	End_Longitude	description	String	CTD end longitude in decimal degrees
attribute	End_Longitude	long_name	String	Longitude
attribute	End_Longitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LONX/
attribute	End_Longitude	standard_name	String	longitude
attribute	End_Longitude	units	String	decimal degrees
variable	Event_ID		short
attribute	Event_ID	_FillValue	short	32767
attribute	Event_ID	actual_range	short	6036, 6484
attribute	Event_ID	bcodmo_name	String	event
attribute	Event_ID	description	String	Geotraces event number
attribute	Event_ID	long_name	String	Event ID
attribute	Event_ID	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/
attribute	Event_ID	units	String	unitless
variable	Sample_ID		short
attribute	Sample_ID	_FillValue	short	32767
attribute	Sample_ID	actual_range	short	10613, 12306
attribute	Sample_ID	bcodmo_name	String	sample
attribute	Sample_ID	description	String	Geotraces sample 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	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	2.0, 4200.1
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth
attribute	depth	description	String	Niskin trip depth. Multiple bottles were tripped to collect sample water; our samples were linked to the Niskin number having both oxygen and salinity bottle data.
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Sample 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	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da		float
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	_FillValue	float	NaN
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	actual_range	float	1.46, 2.8
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	bcodmo_name	String	Si
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	description	String	mean delta30Si(OH)4 relative to the NBS28 standard
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	long_name	String	Mass Concentration Of Silicate In Sea Water
attribute	SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	units	String	per mil
variable	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da		float
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	_FillValue	float	NaN
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	actual_range	float	0.0, 0.2
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	bcodmo_name	String	Si
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	description	String	std dev delta30Si(OH)4 relative to the NBS28 standard
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	long_name	String	Mass Concentration Of Silicate In Sea Water
attribute	SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	units	String	per mil
variable	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da		byte
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	_FillValue	byte	127
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	actual_range	byte	1, 9
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	bcodmo_name	String	q_flag
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	colorBarMaximum	double	150.0
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	colorBarMinimum	double	0.0
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	description	String	quality flag for SILICATE_30_28_D_DELTA_BOTTLE_5ib7da: 1 Good =  Passed documented required QC tests; 2 = Not evaluated, not available or unknown: Used for data when no QC test performed or the information on quality is not available; 3 = Questionable/suspect: Failed non-critical documented metric or subjective test(s); 4 = Bad: Failed critical documented QC test(s) or as assigned by the data provider; 9 = Missing data: Used as place holder when data are missing.
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	long_name	String	Flag SILICATE 30 28 D DELTA BOTTLE 5ib7da
attribute	Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da	units	String	unitless

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