ERDDAP > info > bcodmo_dataset_776552

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	[ETNP Iodine Speciation] - Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively. (The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones)		F   I   M	background			BCO-DMO	bcodmo_dataset_776552

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	Iodate was measured using spectrophotometry based off of Rue et al. 1997. Iodide measured voltammetry based off of Luther et al. 1988. Iodate was converted to triiodide and measured on the spectrophotometer at 350 nm. Iodide was measured on a hanging drop mercury electrode at approximately -0.3 V. Excel was used to process CSV files from the spectrophotometer. Excel was also used to process data from the voltammeter.
attribute	NC_GLOBAL	awards_0_award_nid	String	746075
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1636332
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1636332
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	ETNP Iodine Speciation from the Eastern Tropical North Pacific Ocean on R/V Revelle cruise RR1804 and R/V Falkor FK180624, April/May and June/July 2018 PI: J. Moffett (USC); contact: R. Moriyasu (USC) version date: 2019-09-16
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	2019-09-12T15:42:17Z
attribute	NC_GLOBAL	date_modified	String	2020-03-23T20:49:58Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.26008/1912/bco-dmo.776552.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-102.0
attribute	NC_GLOBAL	geospatial_lat_max	double	22.66672
attribute	NC_GLOBAL	geospatial_lat_min	double	14.0
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-102.0
attribute	NC_GLOBAL	geospatial_lon_min	double	-128.00002
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	3000.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	1.0
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/776552
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Perkin Elmer Lambda 35
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	776855
attribute	NC_GLOBAL	instruments_0_description	String	The Lambda 35 is a double beam UV/Vis spectrophotometer from Perkin Elmer, packing pre-aligned Tungsten and Deuterium Lamps. It has a wavelength range of 190-1100nm and a variable bandwidth range of 0.5 to 4nm.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB20/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Perkin Elmer Lambda 35 Spectrophotometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	696
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Perkin Elmer Lamda 35
attribute	NC_GLOBAL	instruments_1_acronym	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	776854
attribute	NC_GLOBAL	instruments_1_description	String	Instruments that obtain information about an analyte by applying a potential and measuring the current produced in the analyte.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB35/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	698
attribute	NC_GLOBAL	instruments_1_supplied_name	String	BASi Controlled Growth Mercury Electrode
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, bottle, chemical, cruise, cruise_id, data, dataset, date, depth, dmo, erddap, excess, Excess_Iodine, file, iodate, iodide, iodine, iso, latitude, longitude, management, oceanography, office, preliminary, source, source_file, station, time, Time_UTC, total, Total_Iodine
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/776552/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/776552
attribute	NC_GLOBAL	Northernmost_Northing	double	22.66672
attribute	NC_GLOBAL	param_mapping	String	{'776552': {'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/776552/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Southern California
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	USC
attribute	NC_GLOBAL	people_0_person_name	String	James W. Moffett
attribute	NC_GLOBAL	people_0_person_nid	String	50800
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 Southern California
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	USC
attribute	NC_GLOBAL	people_1_person_name	String	Rintaro Moriyasu
attribute	NC_GLOBAL	people_1_person_nid	String	776858
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	Nancy Copley
attribute	NC_GLOBAL	people_2_person_nid	String	50396
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	OMZ Nutrient Cycling
attribute	NC_GLOBAL	projects_0_acronym	String	OMZ Nutrient Cycling
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: The major process controlling the internal cycling of biologically active trace metals in the oceans is through uptake onto and remineralization from sinking particles. Uptake can occur through active biological uptake into living cells as micronutrients, or chemical adsorption onto sinking materials. This latter process is often referred to as scavenging. The relative importance of these processes is often unclear, especially for elements that are both biologically active and also "particle reactive." The latter characteristic is associated with sparing solubility in seawater and the formation of strong complexes with surface sites, with examples such as iron. Recent evidence suggests that the simplistic view of a sinking particle as a passive surface for metal complexation may require some revision. Investigators James Moffett and Seth John propose to study the chemistry of transition metals within large sinking particles and the resultant effects on metal biogeochemical cycling. They will collaborate with a group at the University of Washington, recently funded to study the microbiology and molecular biology of these particles. The central hypothesis of this project is that reducing microbial microenvironments within large particles support high rates of nitrogen and sulfur cycling, greatly enhancing the particles' influence on metal chemistry. The investigators will study these processes in the Eastern Tropical North Pacific Oxygen Minimum Zone (OMZ). This regime was selected because of the wide range of redox conditions in the water column, and strong preliminary evidence that microenvironments within sinking particles have major biogeochemical impacts. The primary objective is to investigate the interactions of metals with particles containing microenvironments that are more highly reducing than the surrounding waters. Such microenvironments arise when the prevailing terminal electron acceptor (oxygen, or nitrate in oxygen minimum zones) becomes depleted and alternative terminal electron acceptors are utilized. Within reducing microenvironments metal redox state and coordination chemistry are different from the bulk water column, and these microenvironments may dominate metal particle interactions. For example, reduction of sulfate to sulfide could bind metals that form strong sulfide complexes, such as cadmium and zinc, processes previously thought to be confined to sulfidic environments. Reducing microenvironments may account for the production of reduced species such as iron(II), even when their formation is thermodynamically unfavorable in the bulk water column. Tasks include observational characterization of dissolved and particulate trace metals and stable isotopes in the study area, sampling and in situ manipulation of particles using large-dimension sediment traps, shipboard experimental incubations under a range of redox conditions, and modeling, providing insight from microscopic to global scales. The metal chemistry data will be interpreted within a rich context of complimentary data including rates of nitrogen and sulfur cycling, phylogenetics and proteomic characterization of the concentration of key enzymes. Broader impacts include training of a postdoctoral scientist, international collaborations with Mexican scientists, and involvement of undergraduate students in the research.
attribute	NC_GLOBAL	projects_0_end_date	String	2019-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Eastern Tropical North Pacific
attribute	NC_GLOBAL	projects_0_name	String	The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones
attribute	NC_GLOBAL	projects_0_project_nid	String	746076
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	14.0
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively.
attribute	NC_GLOBAL	time_coverage_end	String	2018-07-13T23:11:09Z
attribute	NC_GLOBAL	time_coverage_start	String	2018-03-30T03:45:07Z
attribute	NC_GLOBAL	title	String	[ETNP Iodine Speciation] - Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively. (The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-128.00002
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 identifier
attribute	cruise_id	long_name	String	Cruise Id
attribute	cruise_id	units	String	unitless
variable	Bottle		short
attribute	Bottle	_FillValue	short	32767
attribute	Bottle	actual_range	short	1, 19123
attribute	Bottle	bcodmo_name	String	bottle
attribute	Bottle	description	String	bottle number
attribute	Bottle	long_name	String	Bottle
attribute	Bottle	units	String	unitless
variable	Station		byte
attribute	Station	_FillValue	byte	127
attribute	Station	actual_range	byte	1, 34
attribute	Station	bcodmo_name	String	station
attribute	Station	description	String	station number
attribute	Station	long_name	String	Station
attribute	Station	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	1.0, 3000.0
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
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	Iodate		float
attribute	Iodate	_FillValue	float	NaN
attribute	Iodate	actual_range	float	0.0, 534.8
attribute	Iodate	bcodmo_name	String	unknown
attribute	Iodate	description	String	iodate concentration
attribute	Iodate	long_name	String	Iodate
attribute	Iodate	units	String	nanoMolar
variable	Iodide		float
attribute	Iodide	_FillValue	float	NaN
attribute	Iodide	actual_range	float	0.0, 1188.2
attribute	Iodide	bcodmo_name	String	iodide
attribute	Iodide	description	String	iodide concentration
attribute	Iodide	long_name	String	Iodide
attribute	Iodide	units	String	nanoMolar
variable	Total_Iodine		float
attribute	Total_Iodine	_FillValue	float	NaN
attribute	Total_Iodine	actual_range	float	339.0, 1399.0
attribute	Total_Iodine	bcodmo_name	String	iodide
attribute	Total_Iodine	description	String	total iodine concentration
attribute	Total_Iodine	long_name	String	Total Iodine
attribute	Total_Iodine	units	String	nanoMolar
variable	Excess_Iodine		float
attribute	Excess_Iodine	_FillValue	float	NaN
attribute	Excess_Iodine	actual_range	float	-165.0, 895.0
attribute	Excess_Iodine	bcodmo_name	String	iodide
attribute	Excess_Iodine	description	String	excess iodine concentration
attribute	Excess_Iodine	long_name	String	Excess Iodine
attribute	Excess_Iodine	units	String	nanoMolar
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-128.00002, -102.0
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	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	14.0, 22.66672
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	Date		String
attribute	Date	bcodmo_name	String	date
attribute	Date	description	String	sampling date
attribute	Date	long_name	String	Date
attribute	Date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	Date	time_precision	String	1970-01-01
attribute	Date	units	String	unitless
variable	Time_UTC		String
attribute	Time_UTC	bcodmo_name	String	time_utc
attribute	Time_UTC	description	String	UTC time
attribute	Time_UTC	long_name	String	Time UTC
attribute	Time_UTC	units	String	unitless
variable	source_file		String
attribute	source_file	bcodmo_name	String	file_name
attribute	source_file	description	String	name of submitted file
attribute	source_file	long_name	String	Source File
attribute	source_file	units	String	unitless
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.522381507E9, 1.531523469E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	ISO formatted UTC date and time
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

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.