ERDDAP > info > bcodmo_dataset_3852

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	[GT10-11 - Trace Element References] - SAFe and GEOTRACES trace element references from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)		I   M	background			BCO-DMO	bcodmo_dataset_3852

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
attribute	NC_GLOBAL	acquisition_description	String	SAFe reference samples: During the SAFe (Sampling and Analysis of Fe) program and the North Atlantic and North Pacific GEOTRACES Intercalibration cruises, we (Geoffrey Smith and Ken Bruland) collected large volumes of homogenized surface and deep seawater to provide 0.5 L SAFe reference samples to researchers investigating the marine chemistry of trace metals in both the U.S. and international trace metal communities. Surface seawater was collected using the UCSC designed \"GeoFish\" towed sampling system, filtered as described below and then homogenized in two 500 L SAFe tanks. Water from 1000 m was collected with multiple four-bottle casts using our Teflon coated, 30 L, GOFlo samplers deployed on Kevlar hydroline (Bruland et al. 1979), filtered and then homogenized in one of the SAFe tanks. Our GeoFish/SAFe tank system consists of PFA Teflon tubing, an all PFA Teflon diaphragm pump, sequential filtration through 0.45 \u00b5m then 0.2 \u00b5m pore size polycarbonate, track etched (PCTE) pleated filter cartridges and two 500 L fluorinated low density polyethylene tanks connected with all Teflon tubing, valves and fittings. All filtrations, acidifications and bottling of the SAFe samples were performed inside of Class-100 clean benches in a portable clean van. We successfully collected and continue to provide to an international trace metal community 650 SAFe S reference samples of surface water, 650 SAFe D1 reference samples of 1000 meter depth water, and 650 SAFe D2 reference samples of 1000 meter depth water. These samples have been stored in rigorously acid cleaned LDPE bottles for over four years and have proven stable for dissolved Fe and other trace metals. These SAFe reference samples are now proving to be valuable for a suite of GEOTRACES key and non-key trace metals. GEOTRACES reference samples: A variety of GEOTRACES reference samples are also available. We used the SAFe tank system on the North Atlantic GEOTRACES Intercalibration cruise to collect an additional set of North Atlantic GEOTRACES reference samples from the surface and from a depth of 2000 meters. The surface reference sample (GS) was collected with the GeoFish sampling system in the same manner as for SAFe S samples, while the 2000 m deep reference sample (GD) was collected with 5 separate casts of the GEOTRACES rosette to rinse and fill a tank. During the Pacific GEOTRACES Intercalibration cruise, we used the GeoFish/SAFe tank system to collect additional Pacific surface water from the SAFe site to be used as GEOTRACES surface Pacific (GSP) reference samples (~300 0.5 L bottles). Additionally, we collected a surface tank from the highly productive surface waters of the Santa Barbara Basin coastal site on the Pacific Intercalibration cruise and aliquoted ~600 0.5 L samples of this water as a SAFe/GEOTRACES coastal surface reference sample, \"SGC\".
attribute	NC_GLOBAL	awards_0_award_nid	String	55135
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0961579
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0961579
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	Donald L. Rice
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	51467
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	version: 11 Jan 2012 PI: K. Bruland (UCSC) Reference trace element concentrations from deep and surface GEOTRACES NAZT cruises NOTE: Co and Cu were UV-treated
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	2013-01-11T16:27:08Z
attribute	NC_GLOBAL	date_modified	String	2020-03-27T16:40:31Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.26008/1912/bco-dmo.3852.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/3852
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	GO-FLO Teflon TM
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Teflon coated,30 L, GOFlo samplers were deployed on Kevlar hydroline (Bruland et al. 1979),
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	6027
attribute	NC_GLOBAL	instruments_0_description	String	GO-FLO Teflon-lined Trace Metal free sampling bottles are used for collecting water samples for trace metal, nutrient and pigment analysis. The GO-FLO sampling bottle is designed specifically to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/30/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	GO-FLO Teflon Trace Metal Bottle
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	533
attribute	NC_GLOBAL	instruments_0_supplied_name	String	GO-FLO Teflon Trace Metal
attribute	NC_GLOBAL	instruments_1_acronym	String	GeoFish
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	6044
attribute	NC_GLOBAL	instruments_1_description	String	The GeoFish towed sampler is a custom designed near surface (
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/31/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	GeoFish Towed near-Surface Sampler
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	549
attribute	NC_GLOBAL	instruments_1_supplied_name	String	GeoFish
attribute	NC_GLOBAL	instruments_2_acronym	String	Mass Spec
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	6026
attribute	NC_GLOBAL	instruments_2_description	String	General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.
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	Mass Spectrometer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	685
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Mass Spectrometer
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, blank, chemical, cruise, cruise_id, data, dataset, deep, dmo, element, erddap, lod, management, oceanography, office, preliminary, ref, ref_GT_deep, ref_GT_surf, ref_SAFe_deep, ref_SAFe_surf, safe, sta, surf, unit
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/3852/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/3852
attribute	NC_GLOBAL	param_mapping	String	{'3852': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/3852/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of California-Santa Cruz
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UC Santa Cruz
attribute	NC_GLOBAL	people_0_person_name	String	Kenneth W. Bruland
attribute	NC_GLOBAL	people_0_person_nid	String	50662
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	U.S. GEOTRACES NAT
attribute	NC_GLOBAL	projects_0_acronym	String	U.S. GEOTRACES NAT
attribute	NC_GLOBAL	projects_0_description	String	Much of this text appeared in an article published in OCB News, October 2008, by the OCB Project Office. The first U.S. GEOTRACES Atlantic Section will be specifically centered around a sampling cruise to be carried out in the North Atlantic in 2010. Ed Boyle (MIT) and Bill Jenkins (WHOI) organized a three-day planning workshop that was held September 22-24, 2008 at the Woods Hole Oceanographic Institution. The main goal of the workshop, sponsored by the National Science Foundation and the U.S. GEOTRACES Scientific Steering Committee, was to design the implementation plan for the first U.S. GEOTRACES Atlantic Section. The primary cruise design motivation was to improve knowledge of the sources, sinks and internal cycling of Trace Elements and their Isotopes (TEIs) by studying their distributions along a section in the North Atlantic (Figure 1). The North Atlantic has the full suite of processes that affect TEIs, including strong meridional advection, boundary scavenging and source effects, aeolian deposition, and the salty Mediterranean Outflow. The North Atlantic is particularly important as it lies at the "origin" of the global Meridional Overturning Circulation. It is well understood that many trace metals play important roles in biogeochemical processes and the carbon cycle, yet very little is known about their large-scale distributions and the regional scale processes that affect them. Recent advances in sampling and analytical techniques, along with advances in our understanding of their roles in enzymatic and catalytic processes in the open ocean provide a natural opportunity to make substantial advances in our understanding of these important elements. Moreover, we are motivated by the prospect of global change and the need to understand the present and future workings of the ocean's biogeochemistry. The GEOTRACES strategy is to measure a broad suite of TEIs to constrain the critical biogeochemical processes that influence their distributions. In addition to these "exotic" substances, more traditional properties, including macronutrients (at micromolar and nanomolar levels), CTD, bio-optical parameters, and carbon system characteristics will be measured. The cruise starts at Line W, a repeat hydrographic section southeast of Cape Cod, extends to Bermuda and subsequently through the North Atlantic oligotrophic subtropical gyre, then transects into the African coast in the northern limb of the coastal upwelling region. From there, the cruise goes northward into the Mediterranean outflow. The station locations shown on the map are for the "fulldepth TEI" stations, and constitute approximately half of the stations to be ultimately occupied. Figure 1. The proposed 2010 Atlantic GEOTRACES cruise track plotted on dissolved oxygen at 400 m depth. Data from the World Ocean Atlas (Levitus et al., 2005) were plotted using Ocean Data View (courtesy Reiner Schlitzer). [click on the image to view a larger version] Hydrography, CTD and nutrient measurements will be supported by the Ocean Data Facility (J. Swift) at Scripps Institution of Oceanography and funded through NSF Facilities. They will be providing an additional CTD rosette system along with nephelometer and LADCP. A trace metal clean Go-Flo Rosette and winch will be provided by the group at Old Dominion University (G. Cutter) along with a towed underway pumping system. The North Atlantic Transect cruise began in 2010 with KN199 leg 4 (station sampling) and leg 5 (underway sampling only) (Figure 2). KN199-04 Cruise Report (PDF) Figure 2. The red line shows the cruise track for the first leg of the US Geotraces North Atlantic Transect on the R/V Knorr in October 2010.  The rest of the stations (beginning with 13) will be completed in October-December 2011 on the R/V Knorr (courtesy of Bill Jenkins, Chief Scientist, GNAT first leg). [click on the image to view a larger version] The section completion effort resumed again in November 2011 with KN204-01A,B (Figure 3). KN204-01A,B Cruise Report (PDF) Figure 3. Station locations occupied on the US Geotraces North Atlantic Transect on the R/V Knorr in November 2011.  [click on the image to view a larger version] Data from the North Atlantic Transect cruises are available under the Datasets heading below, and consensus values for the SAFe and North Atlantic GEOTRACES Reference Seawater Samples are available from the GEOTRACES Program Office: Standards and Reference Materials ADCP data are available from the Currents ADCP group at the University of Hawaii at the links below:KN199-04   (leg 1 of 2010 cruise; Lisbon to Cape Verde)KN199-05   (leg 2 of 2010 cruise; Cape Verde to Charleston, NC)KN204-01A (part 1 of 2011 cruise; Woods Hole, MA to Bermuda)KN204-01B (part 2 of 2011 cruise; Bermuda to Cape Verde)
attribute	NC_GLOBAL	projects_0_end_date	String	2013-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Subtropical western and eastern North Atlantic Ocean
attribute	NC_GLOBAL	projects_0_name	String	U.S. GEOTRACES North Atlantic Transect
attribute	NC_GLOBAL	projects_0_project_nid	String	2066
attribute	NC_GLOBAL	projects_0_project_website	String	https://www.geotraces.org/
attribute	NC_GLOBAL	projects_0_start_date	String	2010-10
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	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	SAFe and GEOTRACES trace element references from R/V Knorr cruises KN199-04 & KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011.
attribute	NC_GLOBAL	title	String	[GT10-11 - Trace Element References] - SAFe and GEOTRACES trace element references from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	cruise_id		String
attribute	cruise_id	bcodmo_name	String	cruise_id
attribute	cruise_id	description	String	cruise identification
attribute	cruise_id	long_name	String	Cruise Id
attribute	cruise_id	units	String	text
variable	sta		byte
attribute	sta	_FillValue	byte	127
attribute	sta	actual_range	byte	7, 20
attribute	sta	bcodmo_name	String	sta
attribute	sta	description	String	station number
attribute	sta	long_name	String	Sta
attribute	sta	units	String	integer
variable	element		String
attribute	element	bcodmo_name	String	unknown
attribute	element	description	String	chemical trace element measured
attribute	element	long_name	String	Element
attribute	element	units	String	text
variable	unit		String
attribute	unit	bcodmo_name	String	unknown
attribute	unit	description	String	concentration units measured for each element
attribute	unit	long_name	String	Unit
attribute	unit	units	String	picomoles/kilogram or nanomoles/kilogram
variable	blank		float
attribute	blank	_FillValue	float	NaN
attribute	blank	actual_range	float	0.01, 1.57
attribute	blank	bcodmo_name	String	unknown
attribute	blank	description	String	concentration measured for each element in the blank
attribute	blank	long_name	String	Blank
attribute	blank	units	String	picomoles/kilogram or nanomoles/kilogram
variable	lod		float
attribute	lod	_FillValue	float	NaN
attribute	lod	actual_range	float	0.01, 1.19
attribute	lod	bcodmo_name	String	unknown
attribute	lod	description	String	limit of detection equivalent to 3 times the standard deviation of the blanks or samples at or near blank level.
attribute	lod	long_name	String	Lod
attribute	lod	units	String	picomoles/kilogram or nanomoles/kilogram
variable	ref_SAFe_deep		float
attribute	ref_SAFe_deep	_FillValue	float	NaN
attribute	ref_SAFe_deep	actual_range	float	0.35, 1002.11
attribute	ref_SAFe_deep	bcodmo_name	String	trace_metal_conc
attribute	ref_SAFe_deep	description	String	concentration measured for each element from water collected at 1000 meters at the SAFe site (Pacific O.)
attribute	ref_SAFe_deep	long_name	String	Ref SAFe Deep
attribute	ref_SAFe_deep	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/C035/
attribute	ref_SAFe_deep	units	String	picomoles/kilogram or nanomoles/kilogram
variable	ref_SAFe_surf		float
attribute	ref_SAFe_surf	_FillValue	float	NaN
attribute	ref_SAFe_surf	actual_range	float	0.07, 62.19
attribute	ref_SAFe_surf	bcodmo_name	String	trace_metal_conc
attribute	ref_SAFe_surf	description	String	concentration measured for each element from water collected at the surface at the SAFe site (Pacific O.)
attribute	ref_SAFe_surf	long_name	String	Ref SAFe Surf
attribute	ref_SAFe_surf	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/C035/
attribute	ref_SAFe_surf	units	String	picomoles/kilogram or nanomoles/kilogram
variable	ref_GT_deep		float
attribute	ref_GT_deep	_FillValue	float	NaN
attribute	ref_GT_deep	actual_range	float	0.19, 272.15
attribute	ref_GT_deep	bcodmo_name	String	trace_metal_conc
attribute	ref_GT_deep	description	String	concentration measured for each element from water collected at 2000 meters at the GEOTRACES site (Atlantic O.)
attribute	ref_GT_deep	long_name	String	Ref GT Deep
attribute	ref_GT_deep	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/C035/
attribute	ref_GT_deep	units	String	picomoles/kilogram or nanomoles/kilogram
variable	ref_GT_surf		float
attribute	ref_GT_surf	_FillValue	float	NaN
attribute	ref_GT_surf	actual_range	float	0.04, 129.88
attribute	ref_GT_surf	bcodmo_name	String	trace_metal_conc
attribute	ref_GT_surf	description	String	concentration measured for each element from water collected at the surface GEOTRACES site (Atlantic O.)
attribute	ref_GT_surf	long_name	String	Ref GT Surf
attribute	ref_GT_surf	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/C035/
attribute	ref_GT_surf	units	String	picomoles/kilogram or nanomoles/kilogram

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.