ERDDAP > info > bcodmo_dataset_772513

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	[Discrete Samples] - DIC, TA, pH from R/V Pelican cruise conducted in the northern Gulf of Mexico in April and July 2017 (Collaborative Research: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_772513

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	DIC and TA Measure of DIC using NDIR method and of TA using Gran titration. DIC and TA were measured using the instruments from Apollo Scitech Inc. Briefly, for DIC analysis, samples were analyzed at room temperatures. Each seawater sample (0.5 mL) was acidified using phosphoric acid and the evolved CO2 gas was extracted and carried by pure N2 gas to an infrared CO2 detector (Li-Cor 6262) for quantification. TS was determined on 25 mL seawater sample by potentiometric titration, using 0.1 M hydrochloric acid and an open-cell titration system. All TA samples were analyzed in pre-thermostated (25 \u00b0C) glass cells. For each DIC or TA sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of both the TA and DIC measurements was +/- 2 umol/kg. The accuracies of the TA and DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. DO_spec Winkler titration was used for DO analysis. Samples were drawn from Niskin bottles directly into 60 ml BOD bottles and pickled using manganese chloride and sodium iodide/sodium hydroxide. Iodine liberated by acidifying pickled sample was then measured spectrophotometrically using Genesis 30 (Thomas Scientific) spectrophotometer at 466 nm. Blank absorbance from sample turbidity was obtained by adding a few drops of sodium thiosulfate to the sample solution and subtracted from sample absorbance. Calibration was performed by spiking known amounts of potassium iodate. Error on DO was from the uncertainty of measuring absorbance (0.001), which is equivalent of 0.7 uM. Samples which had blank absorbance exceeding 5% of sample absorbance were flagged. pH_elec pH samples were drawn in 60 ml glass bottles and temperature equilibrated at 25 oC. An Orion Combination electrode connected to a pH meter (Orion Star A211) was used to measure the potential (EMF, mV) generated by the H+ ions. EMF was calibrated using three NBS buffer solutions at pH 4.01, 7.0, and 10.01 purchased from Fisher Scientific. Probe was kept immersed in the sample until the EMF stabilized. Two EMF readings at a difference of 1 minute were obtained for each sample and average value used with calibration to calculate the pH. Precision on pH is estimated from the standard deviation of the mean of two EMF readings. Samples where such deviation exceeded 0.16% of the mean EMF are flagged. pH_spec Discrete sample pH_spec was measured spectrophotometrically at 25 degrees Celsius on the total pH scale using purified M-Cresol Purple purchased from R. Byrne at the University of South Florida [Clayton and Byrne, 1993; Liu et al., 2011]. The spectrophotometric pH (25 oC, total scale) was calculated from the ratio of the measured absorbances of mCP at wavelengths l2 = 578 nm and l1 = 434 nm following the dissociation constants proposed by Liu et al 2011]. Sampling and analytical procedures: Measure of DIC using NDIR method and of TA using Gran titration. DIC and TA were measured using the instruments from Apollo Scitech Inc. Briefly, for DIC analysis, samples were analyzed at room temperatures. Each seawater sample (0.5 mL) was acidified using phosphoric acid and the evolved CO2 gas was extracted and carried by pure N2 gas to an infrared CO2 detector (Li-Cor 6262) for quantification. TS was determined on 25 mL seawater sample by potentiometric titration, using 0.1 M hydrochloric acid and an open-cell titration system. All TA samples were analyzed in pre-thermostated (25 \u00b0C) glass cells. For each DIC or TA sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of both the TA and DIC measurements was +/- 2 umol/kg. The accuracies of the TA and DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. Winkler titration was used for DO analysis. Samples were drawn from Niskin bottles directly into 60 ml BOD bottles and pickled using manganese chloride and sodium iodide/sodium hydroxide. Iodine liberated by acidifying pickled sample was then measured spectrophotometrically using Genesis 30 (Thomas Scientific) spectrophotometer at 466 nm. Blank absorbance from sample turbidity was obtained by adding a few drops of sodium thiosulfate to the sample solution and subtracted from sample absorbance. Calibration was performed by spiking known amounts of potassium iodate. Error on DO was from the uncertainty of measuring absorbance (0.001), which is equivalent of 0.7 uM. Samples which had blank absorbance exceeding 5% of sample absorbance were flagged. pH samples were drawn in 60 ml glass bottles and temperature equilibrated at 25 oC. An Orion Combination electrode connected to a pH meter (Orion Star A211) was used to measure the potential (EMF, mV) generated by the H+ ions. EMF was calibrated using three NBS buffer solutions at pH 4.01, 7.0, and 10.01 purchased from Fisher Scientific. Probe was kept immersed in the sample until the EMF stabilized. Two EMF readings at a difference of 1 minute were obtained for each sample and average value used with calibration to calculate the pH. Precision on pH is estimated from the standard deviation of the mean of two EMF readings. Samples where such deviation exceeded 0.16% of the mean EMF are flagged. Discrete sample pH_spec was measured spectrophotometrically at 25 degrees Celsius on the total pH scale using purified M-Cresol Purple purchased from R. Byrne at the University of South Florida (Clayton and Byrne, 1993; Liu et al., 2011). Instruments: 1. 24-bottle rosette equipped with a SeaBird CTD 911. 2. DIC and TA were measured using the instruments from Apollo Scitech Inc. 3. Certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography was used to check the accuracies of the TA and DIC measurements. 4. Winkler titration was used for DO_spec analysis. DO_spec samples were measured spectrophotometrically using Genesis 30 (Thomas Scientific) spectrophotometer at 466 nm. 5. M-Cresol Purple purchased from R. Byrne at the University of South Florida was used for pH_spec measurement. \u00a0
attribute	NC_GLOBAL	awards_0_award_nid	String	751331
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1559279
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1559279
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	Discrete samples concat PI: Wei-Jun Cai Data Version 2: 2019-12-20
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	2019-07-03T14:36:44Z
attribute	NC_GLOBAL	date_modified	String	2020-02-05T18:16:41Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.772513.2
attribute	NC_GLOBAL	Easternmost_Easting	double	-88.5901
attribute	NC_GLOBAL	geospatial_lat_max	double	29.6415
attribute	NC_GLOBAL	geospatial_lat_min	double	27.4999
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-88.5901
attribute	NC_GLOBAL	geospatial_lon_min	double	-93.4167
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	1265.0
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/772513
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	24-bottle rosette
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	772711
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 SBE 911
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	24-bottle rosette equipped with a SeaBird CTD 911
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	772708
attribute	NC_GLOBAL	instruments_1_description	String	The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	CTD Sea-Bird 911
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	422
attribute	NC_GLOBAL	instruments_2_acronym	String	Winkler Titrator
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Used for DO_spec analysis
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	772709
attribute	NC_GLOBAL	instruments_2_description	String	A Winkler Oxygen Titration system is used for determining concentration of dissolved oxygen in seawater.
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB12/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Winkler Oxygen Titrator
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	588
attribute	NC_GLOBAL	instruments_3_acronym	String	Spectrophotometer
attribute	NC_GLOBAL	instruments_3_dataset_instrument_description	String	Genesis 30 (Thomas Scientific) spectrophotometer at 466 nm
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	772710
attribute	NC_GLOBAL	instruments_3_description	String	An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.
attribute	NC_GLOBAL	instruments_3_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB20/
attribute	NC_GLOBAL	instruments_3_instrument_name	String	Spectrophotometer
attribute	NC_GLOBAL	instruments_3_instrument_nid	String	707
attribute	NC_GLOBAL	keywords	String	active, attenuation, available, bco, bco-dmo, biological, bottom, Bottom_Depth, cdom, chemical, chl, chlorophyll, colored, cruise, data, dataset, date, density, depth, dic, dissolved, dmo, DO_Spec, dospec, downwelling, downwelling_photosynthetic_photon_radiance_in_sea_water, earth, Earth Science > Oceans > Ocean Optics > Photosynthetically Active Radiation, Earth Science > Oceans > Ocean Optics > Radiance, Earth Science > Oceans > Salinity/Density > Salinity, electrode, erddap, flag, flag_DIC, flag_DOspec, flag_pHelec, flag_pHspec, flag_TA, fluorescence, FluorescenceChl, helec, hspec, iso, latitude, longitude, management, matter, O2, ocean, oceanography, oceans, office, optics, organic, oxygen, OxygenSBE1, OxygenSBE2, PAR, pH_Electrode, pH_Spec, photon, photosynthetic, photosynthetically, practical, preliminary, radiance, radiation, salinity, sample, Sample_Depth, sbe1, sbe2, science, sea, sea_water_practical_salinity, seawater, spar, spec, station, temperature, time, time2, transmission, turbidity, water, wet, wetCDOM
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/772513/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/772513
attribute	NC_GLOBAL	Northernmost_Northing	double	29.6415
attribute	NC_GLOBAL	param_mapping	String	{'772513': {'Latitude': 'flag - latitude', 'Longitude': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time', 'Bottom_Depth': 'flag - depth'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/772513/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Delaware
attribute	NC_GLOBAL	people_0_person_name	String	Wei-Jun Cai
attribute	NC_GLOBAL	people_0_person_nid	String	528011
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	Dalhousie University
attribute	NC_GLOBAL	people_1_person_name	String	Katja Fennel
attribute	NC_GLOBAL	people_1_person_nid	String	50705
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_affiliation	String	Louisiana State University
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	LSU
attribute	NC_GLOBAL	people_2_person_name	String	Nancy Rabalais
attribute	NC_GLOBAL	people_2_person_nid	String	751342
attribute	NC_GLOBAL	people_2_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_2_role_type	String	originator
attribute	NC_GLOBAL	people_3_affiliation	String	University of Delaware
attribute	NC_GLOBAL	people_3_person_name	String	Wei-Jun Cai
attribute	NC_GLOBAL	people_3_person_nid	String	528011
attribute	NC_GLOBAL	people_3_role	String	Contact
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	people_4_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_4_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_4_person_name	String	Karen Soenen
attribute	NC_GLOBAL	people_4_person_nid	String	748773
attribute	NC_GLOBAL	people_4_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_4_role_type	String	related
attribute	NC_GLOBAL	project	String	nGOMx acidification
attribute	NC_GLOBAL	projects_0_acronym	String	nGOMx acidification
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: Ocean acidification (OA) refers to the lowering of ocean pH (or increasing acidity) due to uptake of atmospheric carbon dioxide (CO2). A great deal of research has been done to understand how the open ocean is influenced by OA, but coastal systems have received little attention. In the northern Gulf of Mexico (nGOM) shelf region, pH in bottom waters can measure up to 0.45 units less than the pH of the pre-industrial surface ocean, in comparison to the 0.1 overall pH decrease across the entire ocean. Carbonate chemistry in the ocean is greatly influenced by even small changes in pH, so these seemingly minor changes lead to much greater impacts on the biology and chemistry of the ocean. The researchers plan to study coastal OA in the nGOM, a region subject to high inputs of nutrients from the Mississippi River. These inputs of anthropogenic nitrogen mostly derived from fertilizers leads to increased respiration rates which decreases oxygen concentrations in the water column to the point of hypoxia in the summer. This study will inform us how OA in coastal waters subject to eutrophication and hypoxia will impact the chemistry and biology of the region. The researchers are dedicated to outreach programs in the Gulf and east coast regions, interacting with K-12 students and teachers, undergraduate/graduate student training, and various outreach efforts (family workshops on OA, lectures for the public and federal, state, and local representatives). Also, a project website will be created to disseminate the research results to a wider audience. Increased uptakes of atmospheric carbon dioxide (CO2) by the ocean has led to a 0.1 unit decrease in seawater pH and carbonate mineral saturation state, a process known as Ocean Acidification (OA), which threatens the heath of marine organisms, alters marine ecosystems, and biogeochemical processes. Considerable attention has been focused on understanding the impact of OA on the open ocean but less attention has been given to coastal regions. Recent studies indicate that pH in bottom waters of the northern Gulf of Mexico (nGOM) shelf can be as much as 0.45 units lower relative to pre-industrial values. This occurs because the acidification resulting from increased CO2 inputs (both atmospheric inputs and in-situ respiration) decreases the buffering capacity of seawater. This interactive effect will increase with time, decreasing summertime nGOM bottom-water pH by an estimated 0.85 units and driving carbonate minerals to undersaturation by the end of this century. Researchers from the University of Delaware and the Louisiana Universities Marine Consortium will carry out a combined field, laboratory, and modeling program to address the following questions. (1) What are the physical, chemical, and biological controls on acidification in coastal waters impacted by the large, nutrient-laden Mississippi River?; (2) What is the link between coastal-water acidification, eutrophication, and hypoxia; (3) How do low pH and high CO2 concentrations in bottom waters affect CO2 out-gassing during fall and winter and storm periods when the water column is mixed?; and (4) What are the influences of changing river inputs under anthropogenic forcing on coastal water acidification? Results from this research aim to further our understanding of the processes influencing ocean acidification in coastal waters subject to eutrophication and hypoxia both in the GOM and river-dominated shelf ecosystems globally.
attribute	NC_GLOBAL	projects_0_end_date	String	2019-04
attribute	NC_GLOBAL	projects_0_geolocation	String	northern Gulf of Mexico, 27.5 N, 30 N, 88 W, 94 W
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	751332
attribute	NC_GLOBAL	projects_0_start_date	String	2016-05
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	27.4999
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Dissolved inorganic carbon, total alkalinity and pH from R/V Pelican cruises conducted in the northern Gulf of Mexico (27.5 N, 30 N, 88 W, 94 W ) from April 5 to 16 and July 7 to 21 in 2017
attribute	NC_GLOBAL	time_coverage_end	String	2017-07-21T16:12:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2017-04-06T12:24:35Z
attribute	NC_GLOBAL	title	String	[Discrete Samples] - DIC, TA, pH from R/V Pelican cruise conducted in the northern Gulf of Mexico in April and July 2017 (Collaborative Research: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean)
attribute	NC_GLOBAL	version	String	2
attribute	NC_GLOBAL	Westernmost_Easting	double	-93.4167
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Cruise		String
attribute	Cruise	bcodmo_name	String	Cruise Name
attribute	Cruise	description	String	Cruise name
attribute	Cruise	long_name	String	Cruise
attribute	Cruise	units	String	unitless
variable	Date		String
attribute	Date	bcodmo_name	String	date
attribute	Date	description	String	Date in format YYYY-MM-DD
attribute	Date	long_name	String	Date
attribute	Date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	Date	units	String	unitless
variable	time2		String
attribute	time2	bcodmo_name	String	time
attribute	time2	description	String	Time in format HH:MM:SS
attribute	time2	long_name	String	Time
attribute	time2	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/
attribute	time2	units	String	unitless
variable	Station		String
attribute	Station	bcodmo_name	String	station
attribute	Station	description	String	Station name
attribute	Station	long_name	String	Station
attribute	Station	units	String	unitless
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-93.4167, -88.5901
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, west is negative
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	27.4999, 29.6415
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, south is negative
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	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	5.0, 1265.0
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth
attribute	depth	description	String	Bottom depth
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Bottom 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	Sample_Depth		float
attribute	Sample_Depth	_FillValue	float	NaN
attribute	Sample_Depth	actual_range	float	1.709, 1240.809
attribute	Sample_Depth	bcodmo_name	String	depth
attribute	Sample_Depth	description	String	Sampling depth
attribute	Sample_Depth	long_name	String	Sample Depth
attribute	Sample_Depth	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/DEPH/
attribute	Sample_Depth	units	String	meter (m)
variable	Temperature		float
attribute	Temperature	_FillValue	float	NaN
attribute	Temperature	actual_range	float	4.4234, 32.2485
attribute	Temperature	bcodmo_name	String	temperature
attribute	Temperature	description	String	Temperature in sampling depth
attribute	Temperature	long_name	String	Temperature
attribute	Temperature	units	String	degrees Celsius (°C)
variable	Salinity		float
attribute	Salinity	_FillValue	float	NaN
attribute	Salinity	actual_range	float	0.1906, 36.565
attribute	Salinity	bcodmo_name	String	sal
attribute	Salinity	colorBarMaximum	double	37.0
attribute	Salinity	colorBarMinimum	double	32.0
attribute	Salinity	description	String	Salinity in sampling depth
attribute	Salinity	long_name	String	Sea Water Practical Salinity
attribute	Salinity	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/
attribute	Salinity	units	String	PSU
variable	OxygenSBE1		double
attribute	OxygenSBE1	_FillValue	double	NaN
attribute	OxygenSBE1	actual_range	double	1.3997187452, 331.0
attribute	OxygenSBE1	bcodmo_name	String	dissolved Oxygen
attribute	OxygenSBE1	description	String	CTD Dissolved oxygen concentration
attribute	OxygenSBE1	long_name	String	Oxygen SBE1
attribute	OxygenSBE1	units	String	micromole per kilogram (umol/kg)
variable	OxygenSBE2		float
attribute	OxygenSBE2	_FillValue	float	NaN
attribute	OxygenSBE2	actual_range	float	0.0458, 10.8
attribute	OxygenSBE2	bcodmo_name	String	dissolved Oxygen
attribute	OxygenSBE2	description	String	CTD Dissolved oxygen concentration
attribute	OxygenSBE2	long_name	String	Oxygen SBE2
attribute	OxygenSBE2	units	String	milligram per liter (mg/L)
variable	FluorescenceChl		float
attribute	FluorescenceChl	_FillValue	float	NaN
attribute	FluorescenceChl	actual_range	float	-0.0185, 19.4
attribute	FluorescenceChl	bcodmo_name	String	fluorescence
attribute	FluorescenceChl	description	String	CTD Fluorescence Chl
attribute	FluorescenceChl	long_name	String	Fluorescence Chl
attribute	FluorescenceChl	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLPM01/
attribute	FluorescenceChl	units	String	microgram per liter (ug/L)
variable	wetCDOM		float
attribute	wetCDOM	_FillValue	float	NaN
attribute	wetCDOM	actual_range	float	-0.4948, 34.4576
attribute	wetCDOM	bcodmo_name	String	CDOM
attribute	wetCDOM	description	String	CTD wetCDOM
attribute	wetCDOM	long_name	String	Wet CDOM
attribute	wetCDOM	units	String	milligram per cubic meters (mg/m^3)
variable	SPAR		float
attribute	SPAR	_FillValue	float	NaN
attribute	SPAR	actual_range	float	0.0, 3102.6
attribute	SPAR	bcodmo_name	String	SPAR
attribute	SPAR	description	String	CTD Surficial Photosynthetically Available
attribute	SPAR	long_name	String	SPAR
attribute	SPAR	units	String	microEinsteins per square meter per second (uEinsteins/m^2/second)
variable	PAR		float
attribute	PAR	_FillValue	float	NaN
attribute	PAR	actual_range	float	0.0, 2541.6
attribute	PAR	bcodmo_name	String	PAR
attribute	PAR	colorBarMaximum	double	70.0
attribute	PAR	colorBarMinimum	double	0.0
attribute	PAR	description	String	CTD Photosynthetically Available [Active] Radiation
attribute	PAR	long_name	String	Downwelling Photosynthetic Photon Radiance In Sea Water
attribute	PAR	units	String	microEinsteins per square meter per second (uEinsteins/m^2/second)
variable	Turbidity		float
attribute	Turbidity	_FillValue	float	NaN
attribute	Turbidity	actual_range	float	0.0, 410.979
attribute	Turbidity	bcodmo_name	String	turbidity
attribute	Turbidity	description	String	CTD Turbidity
attribute	Turbidity	long_name	String	Turbidity
attribute	Turbidity	units	String	FTU
variable	Attenuation		float
attribute	Attenuation	_FillValue	float	NaN
attribute	Attenuation	actual_range	float	-0.5, 55.262
attribute	Attenuation	bcodmo_name	String	beam_cp
attribute	Attenuation	description	String	CTD Attenuation
attribute	Attenuation	long_name	String	Attenuation
attribute	Attenuation	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ATTNZZ01/
attribute	Attenuation	units	String	1 per meter (1/m)
variable	Transmission		float
attribute	Transmission	_FillValue	float	NaN
attribute	Transmission	actual_range	float	-0.0784, 112.3
attribute	Transmission	bcodmo_name	String	transmission
attribute	Transmission	description	String	CTD Transmission
attribute	Transmission	long_name	String	Transmission
attribute	Transmission	units	String	%
variable	TA		float
attribute	TA	_FillValue	float	NaN
attribute	TA	actual_range	float	1977.0, 2465.0
attribute	TA	bcodmo_name	String	TALK
attribute	TA	description	String	Total Alkalinity
attribute	TA	long_name	String	TA
attribute	TA	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/
attribute	TA	units	String	micromole per kilogram (umol/kg)
variable	flag_TA		byte
attribute	flag_TA	_FillValue	byte	127
attribute	flag_TA	actual_range	byte	1, 3
attribute	flag_TA	bcodmo_name	String	flag
attribute	flag_TA	colorBarMaximum	double	150.0
attribute	flag_TA	colorBarMinimum	double	0.0
attribute	flag_TA	description	String	Total Alkalinity final flag - flag_2 means precision 0.1%
attribute	flag_TA	long_name	String	Flag TA
attribute	flag_TA	units	String	unitless
variable	DIC		float
attribute	DIC	_FillValue	float	NaN
attribute	DIC	actual_range	float	1675.0, 2475.0
attribute	DIC	bcodmo_name	String	DIC
attribute	DIC	description	String	Total dissolved inorganic carbon
attribute	DIC	long_name	String	DIC
attribute	DIC	units	String	micromole per kilogram (umol/kg)
variable	flag_DIC		byte
attribute	flag_DIC	_FillValue	byte	127
attribute	flag_DIC	actual_range	byte	1, 3
attribute	flag_DIC	bcodmo_name	String	flag
attribute	flag_DIC	colorBarMaximum	double	150.0
attribute	flag_DIC	colorBarMinimum	double	0.0
attribute	flag_DIC	description	String	Total dissolved inorganic carbon final flag - flag_2 means precision 0.1%
attribute	flag_DIC	long_name	String	Flag DIC
attribute	flag_DIC	units	String	unitless
variable	pH_Electrode		float
attribute	pH_Electrode	_FillValue	float	NaN
attribute	pH_Electrode	actual_range	float	7.75, 8.87
attribute	pH_Electrode	bcodmo_name	String	pH
attribute	pH_Electrode	description	String	pH measured by electrode (NBS scale)
attribute	pH_Electrode	long_name	String	P H Electrode
attribute	pH_Electrode	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/
attribute	pH_Electrode	units	String	unitless
variable	flag_pHelec		byte
attribute	flag_pHelec	_FillValue	byte	127
attribute	flag_pHelec	actual_range	byte	1, 3
attribute	flag_pHelec	bcodmo_name	String	flag
attribute	flag_pHelec	colorBarMaximum	double	150.0
attribute	flag_pHelec	colorBarMinimum	double	0.0
attribute	flag_pHelec	description	String	pH measured by electrode final flag - flag_2 means precision +-0.02
attribute	flag_pHelec	long_name	String	Flag P Helec
attribute	flag_pHelec	units	String	unitless
variable	pH_Spec		float
attribute	pH_Spec	_FillValue	float	NaN
attribute	pH_Spec	actual_range	float	7.27, 8.631
attribute	pH_Spec	bcodmo_name	String	pH
attribute	pH_Spec	description	String	Total scale pH measured by spectrometer
attribute	pH_Spec	long_name	String	P H Spec
attribute	pH_Spec	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/
attribute	pH_Spec	units	String	unitless
variable	flag_pHspec		byte
attribute	flag_pHspec	_FillValue	byte	127
attribute	flag_pHspec	actual_range	byte	1, 2
attribute	flag_pHspec	bcodmo_name	String	flag
attribute	flag_pHspec	colorBarMaximum	double	150.0
attribute	flag_pHspec	colorBarMinimum	double	0.0
attribute	flag_pHspec	description	String	pH measure by spectrometer final flag - flag_2 means precision +-0.005
attribute	flag_pHspec	long_name	String	Flag P Hspec
attribute	flag_pHspec	units	String	unitless
variable	DO_Spec		float
attribute	DO_Spec	_FillValue	float	NaN
attribute	DO_Spec	actual_range	float	0.0, 330.54
attribute	DO_Spec	bcodmo_name	String	dissolved Oxygen
attribute	DO_Spec	description	String	Dissolved oxygen measured by spectrometer at 25 degrees celcius
attribute	DO_Spec	long_name	String	DO Spec
attribute	DO_Spec	units	String	umol/L
variable	flag_DOspec		byte
attribute	flag_DOspec	_FillValue	byte	127
attribute	flag_DOspec	actual_range	byte	2, 3
attribute	flag_DOspec	bcodmo_name	String	flag
attribute	flag_DOspec	colorBarMaximum	double	150.0
attribute	flag_DOspec	colorBarMinimum	double	0.0
attribute	flag_DOspec	description	String	Dissolved oxygen final flag - flag_2 means precision 0.7umol L-1
attribute	flag_DOspec	long_name	String	Flag DOspec
attribute	flag_DOspec	units	String	unitless
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.491481475E9, 1.50065352E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	Date/Time UTC in ISO format (YYYY-MM-DDTHH:MM:SSZ)
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.