ERDDAP > info > bcodmo_dataset_770818

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
	set	data	graph		files	public	[HOT LAVA Nitrogen] - Water column nitrate+nitrite d15N and d18O and total dissolved nitrogen d15N measurements from R/V Ka`imikai-O-Kanaloa cruise KOK1806 (HOT LAVA) in July 2018 (Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_770818

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	Some water samples were collected by Niskin bottle on a CTD rosette (\"CTD profile\"), while others were collected using a trace metal clean \"Towfish\" that was running along side the ship and collected trace metal clean underway samples ~1 m below the sea surface. NO3-+NO2- d15N and d18O and TDN \u03b415N analysis was by the \"denitrifier method\" and followed the methods described by Sigman et al., 2001, Casciotti et al., 2002, McIlvin and Casciotti, 2011, and Weigand et al., 2016. Briefly, NO3-+NO2- was quantitatively reduced to N2O by Pseudomonas aureofaciens and Pseudomonas chlororaphis, which was then cryogenically focused and analyzed on an isotope ratio mass spectrometer. A volume of sample was added to each bacterial vial to achieve a final quantity of 10 or 20 nmols N2O, which was then purged from the vial using a helium carrier gas. The d15N of N2O in samples was calibrated with the international isotopic reference materials The \u03b415N of TDN was measured using persulfate oxidation of DON to NO3- followed by the denitrified method as described in Knapp et al. (2005). Nitrate+nitrite concentration was measured by others (Karl lab, U. Hawaii) using colorimetric methods, and total dissolved nitrogen concentration was measured by others (Karl lab, U. Hawaii) using uv-oxidation and subsequent colorimetric analysis. Both of these data sets can be found at: [http://scope.soest.hawaii.edu/data/](\\"http://scope.soest.hawaii.edu/data/\\")
attribute	NC_GLOBAL	awards_0_award_nid	String	710561
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1537314
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1537314
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 nitrate+nitrite and total dissolved nitrogen d15N from HOT LAVA cruise, KOK1806 PI: Angela Knapp (FSU) Version date: 18 June 2019
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	2019-06-18T17:38:04Z
attribute	NC_GLOBAL	date_modified	String	2019-09-12T14:09:19Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.770818.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-154.71
attribute	NC_GLOBAL	geospatial_lat_max	double	19.45
attribute	NC_GLOBAL	geospatial_lat_min	double	19.373
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-154.71
attribute	NC_GLOBAL	geospatial_lon_min	double	-154.829
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	126.5
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/770818
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	770835
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_0_supplied_name	String	Niskin bottle (CTD rosette)
attribute	NC_GLOBAL	instruments_1_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	770836
attribute	NC_GLOBAL	instruments_1_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_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Thermo Finnigan Delta V
attribute	NC_GLOBAL	instruments_2_acronym	String	GeoFish
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	770860
attribute	NC_GLOBAL	instruments_2_description	String	The GeoFish towed sampler is a custom designed near surface (
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/31/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	GeoFish Towed near-Surface Sampler
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	549
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Towfish
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, chemistry, concentration, conductivity, ctd, d15, data, dataset, date, depth, dev, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Nitrate, erddap, karl, Karl_HI_NO3_NO2, Karl_TDN, knapp, Knapp_NO3_NO2_d15N, Knapp_NO3_NO2_d15N_std_dev, Knapp_NO3_NO2_d18O, Knapp_NO3_NO2_d18O_std_dev, Knapp_TDN_d15N, Knapp_TDN_d15N_std_dev, latitude, longitude, management, mole, mole_concentration_of_nitrate_in_sea_water, n02, nitrate, no3, number, ocean, oceanography, oceans, office, preliminary, profile, profiler, salinity, salinity-temperature-depth, science, sea, seawater, sonde, station, Station_Number, std, tdn, temperature, time, towfish, Towfish_or_CTD_profile_station, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/770818/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/770818
attribute	NC_GLOBAL	Northernmost_Northing	double	19.45
attribute	NC_GLOBAL	param_mapping	String	{'770818': {'Date': 'flag - time', 'Lat_N': 'flag - latitude', 'Depth': 'flag - depth', 'Longitude_E': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/770818/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Florida State University
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	FSU
attribute	NC_GLOBAL	people_0_person_name	String	Angela N. Knapp
attribute	NC_GLOBAL	people_0_person_nid	String	555499
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	Shannon Rauch
attribute	NC_GLOBAL	people_1_person_nid	String	51498
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	SW Pac N2 fixation
attribute	NC_GLOBAL	projects_0_acronym	String	SW Pac N2 fixation
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: The availability of nitrogen in the surface ocean plays a critical role regulating rates of primary productivity in the ocean, and thus through modification of the carbon cycle, nitrogen has the capacity to influence climate. The dominant source of biologically available nitrogen to the ocean is through a process known as di-nitrogen (N2) fixation, which involves the reduction of N2 gas dissolved in seawater to ammonium by microbes referred to as diazotrophs. While significant progress has been made identifying a diversity of marine diazotrophs in recent years using molecular tools, quantifying global rates of N2 fixation, and identifying which ocean basin supports the highest fluxes, has remained a vexing question. This research will quantify rates of N2 fixation as well as its importance for supporting production in the southwest Pacific Ocean. Results from this research will shed light on the sensitivities of N2 fixation (temperature, iron concentrations) as well as the extent of spatial and temporal coupling of nitrogen sources and sinks in the ocean. The work will be carried out by an early career scientist, and involve mentoring of young women, middle school girls and minorities, training of undergraduate and graduate researchers, and international collaborations. Identifying the spatial distribution of the largest di-nitrogen (N2) fixation fluxes to the ocean remains a critical goal of chemical oceanography. The spatial distribution can inform our understanding of the environmental sensitivities of N2 fixation and the capacity for the dominant marine nitrogen (N) source and sink processes to respond to each other and thus influence the global carbon cycle and climate. In addition to temperature, two factors are at the heart of the current debate over what influences the spatial distribution of N2 fixation in the ocean: 1) the presence of adequate iron to meet the needs of N2 fixing microbes, and, 2) the absolute concentrations as well as ratios of surface ocean nitrate and phosphate concentrations that are low relative to the "Redfield" ratio, which are thought to favor N2 fixing microbes. This project will test the effects of gradients in atmospheric dust deposition on N2 fixation rates when surface waters have relatively constant but favorable nitrate to phosphate concentrations. The work will be carried out in the southwest Pacific, a region highlighted by new modeling work for its unique geochemical characteristics that are expected to favor significant N2 fixation fluxes. Nitrate+nitrite d15N as well as total dissolved nitrogen (TDN) concentration and d15N will be measured in water column samples collected on a French cruise and sediment traps were deployed to capture the sinking particulate N flux. The results will be compared with published work to evaluate which ocean regions support the largest N2 fixation fluxes. More information: This project was part of the Oligotrophy to UlTra-oligotrophy PACific Experiment (OUTPACE) cruise in the Southwest Pacific between New Caledonia (166°28' E; 22°14' S) and Tahiti (149°36' W; 17°34' S) 0-2000 m​ * OUTPACE cruise (doi: https://dx.doi.org/10.17600/15000900) * OUTPACE website: https://outpace.mio.univ-amu.fr/?lang=en
attribute	NC_GLOBAL	projects_0_end_date	String	2018-07
attribute	NC_GLOBAL	projects_0_geolocation	String	Southwest Pacific Ocean between New Caledonia and Tahiti along ~18 deg S
attribute	NC_GLOBAL	projects_0_name	String	Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	710562
attribute	NC_GLOBAL	projects_0_project_website	String	http://scope.soest.hawaii.edu/data/lava/lava.html
attribute	NC_GLOBAL	projects_0_start_date	String	2015-08
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	19.373
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	time
attribute	NC_GLOBAL	summary	String	This data set includes water column nitrate+nitrite and total dissolved nitrogen d15N measurements. These measurements were used to address the source of nitrate+nitrite in surface waters observed after the 2018 Kilauea eruption entered the ocean, leading to enhanced surface ocean chlorophyll. The results are consistent with an upwelling source of nitrate+nitrite from ~400 m driven by hot lava entering the ocean, leading to increased buoyancy of waters, driving \roils\ (see F. J. Sansone, and J. A. Resing, 1995, J. Geophys. Res. Oceans). These data are also used as evidence that biological nitrogen fixation did not contribute to the nitrate+nitrite observed in surface waters.
attribute	NC_GLOBAL	time_coverage_end	String	2018-07-14
attribute	NC_GLOBAL	time_coverage_start	String	2018-07-14
attribute	NC_GLOBAL	title	String	[HOT LAVA Nitrogen] - Water column nitrate+nitrite d15N and d18O and total dissolved nitrogen d15N measurements from R/V Ka`imikai-O-Kanaloa cruise KOK1806 (HOT LAVA) in July 2018 (Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-154.829
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Station_Number		byte
attribute	Station_Number	_FillValue	byte	127
attribute	Station_Number	actual_range	byte	1, 15
attribute	Station_Number	bcodmo_name	String	station
attribute	Station_Number	colorBarMaximum	double	100.0
attribute	Station_Number	colorBarMinimum	double	0.0
attribute	Station_Number	description	String	Station number
attribute	Station_Number	long_name	String	Station Number
attribute	Station_Number	units	String	unitless
variable	Towfish_or_CTD_profile_station		String
attribute	Towfish_or_CTD_profile_station	bcodmo_name	String	instrument
attribute	Towfish_or_CTD_profile_station	description	String	Sampling system (either towfish or CTD rosette)
attribute	Towfish_or_CTD_profile_station	long_name	String	Towfish Or CTD Profile Station
attribute	Towfish_or_CTD_profile_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, 126.5
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	Sample 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	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.5315264E9, 1.5315264E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	date
attribute	time	description	String	Date of collection. Format: yyyy-mm-dd
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Date
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
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	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	19.373, 19.45
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
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	Lat_N
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	-154.829, -154.71
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
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	Longitude_E
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	Karl_HI_NO3_NO2		float
attribute	Karl_HI_NO3_NO2	_FillValue	float	NaN
attribute	Karl_HI_NO3_NO2	actual_range	float	0.0, 4.69
attribute	Karl_HI_NO3_NO2	bcodmo_name	String	NO3_NO2
attribute	Karl_HI_NO3_NO2	colorBarMaximum	double	50.0
attribute	Karl_HI_NO3_NO2	colorBarMinimum	double	0.0
attribute	Karl_HI_NO3_NO2	description	String	Nitrate+nitrite concentration; measured in Karl lab at U. Hawaii using colorimetric methods
attribute	Karl_HI_NO3_NO2	long_name	String	Mole Concentration Of Nitrate In Sea Water
attribute	Karl_HI_NO3_NO2	units	String	micromolar (uM)
variable	Knapp_NO3_NO2_d15N		float
attribute	Knapp_NO3_NO2_d15N	_FillValue	float	NaN
attribute	Knapp_NO3_NO2_d15N	actual_range	float	3.41, 11.47
attribute	Knapp_NO3_NO2_d15N	bcodmo_name	String	15N of nitrate plus nitrite
attribute	Knapp_NO3_NO2_d15N	colorBarMaximum	double	50.0
attribute	Knapp_NO3_NO2_d15N	colorBarMinimum	double	0.0
attribute	Knapp_NO3_NO2_d15N	description	String	Nitrate+nitrite d15N
attribute	Knapp_NO3_NO2_d15N	long_name	String	Mole Concentration Of Nitrate In Sea Water
attribute	Knapp_NO3_NO2_d15N	units	String	per mil
variable	Knapp_NO3_NO2_d15N_std_dev		float
attribute	Knapp_NO3_NO2_d15N_std_dev	_FillValue	float	NaN
attribute	Knapp_NO3_NO2_d15N_std_dev	actual_range	float	0.02, 1.21
attribute	Knapp_NO3_NO2_d15N_std_dev	bcodmo_name	String	15N of nitrate plus nitrite
attribute	Knapp_NO3_NO2_d15N_std_dev	colorBarMaximum	double	50.0
attribute	Knapp_NO3_NO2_d15N_std_dev	colorBarMinimum	double	0.0
attribute	Knapp_NO3_NO2_d15N_std_dev	description	String	Standard deviation of Knapp_NO3_NO2_d15N
attribute	Knapp_NO3_NO2_d15N_std_dev	long_name	String	Mole Concentration Of Nitrate In Sea Water
attribute	Knapp_NO3_NO2_d15N_std_dev	units	String	per mil
variable	Knapp_NO3_NO2_d18O		float
attribute	Knapp_NO3_NO2_d18O	_FillValue	float	NaN
attribute	Knapp_NO3_NO2_d18O	actual_range	float	-0.57, 9.97
attribute	Knapp_NO3_NO2_d18O	bcodmo_name	String	unknown
attribute	Knapp_NO3_NO2_d18O	colorBarMaximum	double	50.0
attribute	Knapp_NO3_NO2_d18O	colorBarMinimum	double	0.0
attribute	Knapp_NO3_NO2_d18O	description	String	Nitrate+nitrite d18O
attribute	Knapp_NO3_NO2_d18O	long_name	String	Mole Concentration Of Nitrate In Sea Water
attribute	Knapp_NO3_NO2_d18O	units	String	per mil
variable	Knapp_NO3_NO2_d18O_std_dev		float
attribute	Knapp_NO3_NO2_d18O_std_dev	_FillValue	float	NaN
attribute	Knapp_NO3_NO2_d18O_std_dev	actual_range	float	0.05, 2.55
attribute	Knapp_NO3_NO2_d18O_std_dev	bcodmo_name	String	unknown
attribute	Knapp_NO3_NO2_d18O_std_dev	colorBarMaximum	double	50.0
attribute	Knapp_NO3_NO2_d18O_std_dev	colorBarMinimum	double	0.0
attribute	Knapp_NO3_NO2_d18O_std_dev	description	String	Standard deviation of Knapp_NO3_NO2_d18O
attribute	Knapp_NO3_NO2_d18O_std_dev	long_name	String	Mole Concentration Of Nitrate In Sea Water
attribute	Knapp_NO3_NO2_d18O_std_dev	units	String	per mil
variable	Karl_TDN		float
attribute	Karl_TDN	_FillValue	float	NaN
attribute	Karl_TDN	actual_range	float	4.84, 9.83
attribute	Karl_TDN	bcodmo_name	String	Total Dissolved Nitrogren
attribute	Karl_TDN	description	String	Total dissolved nitrogen concentration; measured in Karl lab at U. Hawaii using uv-oxidation and subsequent colorimetric analysis
attribute	Karl_TDN	long_name	String	Karl TDN
attribute	Karl_TDN	units	String	micromolar (uM)
variable	Knapp_TDN_d15N		float
attribute	Knapp_TDN_d15N	_FillValue	float	NaN
attribute	Knapp_TDN_d15N	actual_range	float	2.8, 6.15
attribute	Knapp_TDN_d15N	bcodmo_name	String	15N of Total Particulate Nitrogen
attribute	Knapp_TDN_d15N	description	String	Total dissolved nitrogen ?15N
attribute	Knapp_TDN_d15N	long_name	String	Knapp TDN D15 N
attribute	Knapp_TDN_d15N	units	String	per mil
variable	Knapp_TDN_d15N_std_dev		float
attribute	Knapp_TDN_d15N_std_dev	_FillValue	float	NaN
attribute	Knapp_TDN_d15N_std_dev	actual_range	float	0.0, 0.97
attribute	Knapp_TDN_d15N_std_dev	bcodmo_name	String	15N of Total Particulate Nitrogen
attribute	Knapp_TDN_d15N_std_dev	description	String	Standard deviation of Knapp_TDN_d15N
attribute	Knapp_TDN_d15N_std_dev	long_name	String	Knapp TDN D15 N Std Dev
attribute	Knapp_TDN_d15N_std_dev	units	String	per mil

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.