ERDDAP > info > bcodmo_dataset_794163

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	[Salt marsh carbonate and organic carbon chemistry 2016] - Discrete bottle sample measurements for carbonate chemistry, organic alkalinity and organic carbon from samples collected in Waquoit Bay and Vineyard Sound, MA in 2016 (Collaborative Research: The Paradox of Salt Marshes as a Source of Alkalinity and Low pH, High Carbon Dioxide Water to the Ocean: A First In-depth Study of A Diminishing Source)		F   I   M	background			BCO-DMO	bcodmo_dataset_794163

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	Time-series bottle samples were collected from the Sage Lot Pond salt marsh tidal creek at approx. 41.5546N, 70.5071W. Samples were collected at ~0.2 m below the surface of tidal creek water every 1-2 h at the sampling site using a peristaltic or diaphragm pump for periods of a full tidal cycle (~12\u201314 h).Two coastal water samples were collected from the Woods Hole Oceanographic Institution Environmental Systems Laboratory intake, located about 1.6 km offshore in Vineyard Sound. Three goundwater samples were collected at the edge of Sage Lot Pond salt marsh at the elevation of 0.42 m, 0.75 m, and 1.66 m (NAVD88), corresponding to 0.56 m, 0.89 m, and 1.8 m below the land surface, respectively. The DIC, TA, and pH collection followed standard best practice procedures outlined by Dickson et al. (2007). OrgAlk sample collection followed the TA sampling protocol. Samples were collected through purgeable capsule filters with 0.45 um pore size (Farrwest Environmental Supply, Texas, USA) into 250 mL borosilicate bottles, poisoned with 100 uL saturated mercuric chloride, sealed with a HDPE screw top or a glass stopper coated with APIEZON\u00ae \u2013 L grease, and se- cured with a rubber band. Samples for DOC analysis were filtered through 0.45 um pore size polyethersulfone cartridge filters into combusted borosilicate glass vials with Teflon-lined silicone septa caps, acidified to pH < 2 with hydrochloric acid and refrigerated until analysis. DIC was analyzed using an Apollo SciTech DIC auto-analyzer (Model AS-C3), which uses a nondispersive infrared (NDIR) method. The sample is acidified with a 10% phosphoric acid in 10% sodium chloride solution, and CO\u2082 is purged with high purity nitrogen gas and measured by a LI-COR 7000 infrared analyzer (LI-COR Environmental, Nebraska, USA). Certified Reference Material (CRM) from Dr. A. Dickson at Scripps Institution of Oceanography was used to calibrate the DIC auto-analyzer at least once daily. In addition, CRM was measured as a sample every few hours to gauge and correct any potential drift. The precision and accuracy of the instrument was ~ \u00b1 2.0 \u03bcmol kg\u207b\u00b9. TA was measured with a Ross combination pH electrode and a pH meter (ORION 3 Star) to perform a modified Gran titration (Wang and Cai, 2004). The electrode and concentration of hydrochloric acid was calibrated every day. The CRMs were also measured as samples every few hours to correct any potential small drift. The accuracy and precision of the measurement was about 2.5\u00b11.9 \u03bcmol kg\u207b\u00b9. The pH samples were measured with a UV-visible spectrophotometer (Agilent 8454, Agilent Technologies, USA) at 25 \u00b1 0.1\u2103 using purified meta- cresol purple (mcp) as an indicator. The pH values are reported on the total proton concentration scale and converted from 25 \u00b1 0.1\u2103 to in-situ temperature using measured DIC and the CO2SYS program (van Heuven et al., 2011). The mean uncertainty of the pH measurement was \u00b1 0.006 (range 0.0003 \u2012 0.017), calculated as the mean difference between duplicate samples. OrgAlk concentration was determined with a digital syringe pump, a Ross combination pH electrode and a pH meter (ORION 3 Star), based on the procedure reported in Cai et al. (1998). OrgAlk sample was titrated with a calibrated HCl solution (~ 0.1 M) until the sample pH was below 3.0 (first titration). CO\u2082 in the sample was then removed by bubbling with high purity N\u2082 gas (99.999%) for ~ 10 minutes. The acidified sample was then titrated with 0.1 M NaOH solution back to its initial pH (back titration). The NaOH solution was prepared in DI water bubbled with high purity N\u2082 gas to prevent CO\u2082 dissolution into the solution. Finally, the sample was titrated with HCl again until its pH was below 3.0 (second titration). OrgAlk was calculated as the TA from the second titration minus the borate alkalinity. The mean difference of OrgAlk concentrations between duplicate samples was 2.8 \u00b1 2.1 \u00b5mol kg\u207b\u00b9. Due to the existence of a small amount of CO\u2082 in the NaOH solution, the OrgAlk results were corrected by subtracting introduced carbonate alkalinity based on the volume of NaOH solution added during the back titration. DOC samples were analyzed on an O. I. Analytical Aurora 1030C Autoanalyzer by high-temperature catalytic oxidation followed by nondispersive infrared detection (HTCO-NDIR). Concentrations are reported relative to a potassium hydrogen phthalate (KHP) standard. Hansell deep seawater (University of Miami Hansell Laboratory, Lot# 01-14), and Suwannee River NOM (IHSS, Lot# 2R101N) reference materials were analyzed daily as additional checks on precision and accuracy of the analyses. Standards and reference materials typically vary by < 5%. Tidal water samples for practical salinity were analyzed with a Guideline AutoSal instrument at Woods Hole Oceanographic Institution. A YSI EXO2 Sonde (YSI Inc., Ohio, USA) was submerged in the tidal creek to measure temperature and water depth. Groundwater salinity and temperature were measured with a YSI Pro30 (YSI Inc., Ohio, USA) during collection.The YSI EXO2 recorded at intervals ranging from 2 min to 8 min. Reported YSI EXO2 sensor accuracy specifications are: 1% of the reading for salinity and 0.05 \u00b0C for temperature.
attribute	NC_GLOBAL	awards_0_award_nid	String	765031
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1459521
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1459521
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	Salt marsh carbonate and organic carbon chemistry from Waquoit Bay and Vineyard Sound, 2016 PI: Zhaohui Aleck Wang (WHOI) Co-PIs: Meagan Gonneea & Kevin Kroeger (USGS) Student: Shuzhen Song (WHOI) Version date: 25-Feb-2020
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2020-02-25T15:20:28Z
attribute	NC_GLOBAL	date_modified	String	2020-02-26T15:15:51Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.794163.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-70.4
attribute	NC_GLOBAL	geospatial_lat_max	double	41.5546
attribute	NC_GLOBAL	geospatial_lat_min	double	41.5
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-70.4
attribute	NC_GLOBAL	geospatial_lon_min	double	-70.5071
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/794163
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	LI-COR LI-7000
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	794176
attribute	NC_GLOBAL	instruments_0_description	String	The LI-7000 CO2/H2O Gas Analyzer is a high performance, dual cell, differential gas analyzer. It was designed to expand on the capabilities of the LI-6262 CO2/ H2O Gas Analyzer. A dichroic beam splitter at the end of the optical path provides radiation to two separate detectors, one filtered to detect radiation absorption of CO2 and the other to detect absorption by H2O. The two separate detectors measure infrared absorption by CO2 and H2O in the same gas stream. The LI-7000 CO2/ H2O Gas Analyzer is a differential analyzer, in which a known concentration (which can be zero) gas is put in the reference cell, and an unknown gas is put in the sample cell.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/382/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	LI-COR LI-7000 Gas Analyzer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	577
attribute	NC_GLOBAL	instruments_0_supplied_name	String	LI-COR 7000 infrared analyzer
attribute	NC_GLOBAL	instruments_1_acronym	String	TOC analyzer
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	794179
attribute	NC_GLOBAL	instruments_1_description	String	A unit that accurately determines the carbon concentrations of organic compounds typically by detecting and measuring its combustion product (CO2). See description document at: http://bcodata.whoi.edu/LaurentianGreatLakes_Chemistry/bs116.pdf
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB04/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Total Organic Carbon Analyzer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	652
attribute	NC_GLOBAL	instruments_1_supplied_name	String	O.I. Analytical Aurora 1030C Autoanalyzer
attribute	NC_GLOBAL	instruments_2_acronym	String	pH Sensor
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	794177
attribute	NC_GLOBAL	instruments_2_description	String	General term for an instrument that measures the pH or how acidic or basic a solution is.
attribute	NC_GLOBAL	instruments_2_instrument_name	String	pH Sensor
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	674
attribute	NC_GLOBAL	instruments_2_supplied_name	String	ORION 3 Star pH electrode and pH meter
attribute	NC_GLOBAL	instruments_3_acronym	String	Automatic titrator
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	794181
attribute	NC_GLOBAL	instruments_3_description	String	Instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached.
attribute	NC_GLOBAL	instruments_3_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB12/
attribute	NC_GLOBAL	instruments_3_instrument_name	String	Automatic titrator
attribute	NC_GLOBAL	instruments_3_instrument_nid	String	682
attribute	NC_GLOBAL	instruments_4_acronym	String	Spectrophotometer
attribute	NC_GLOBAL	instruments_4_dataset_instrument_nid	String	794178
attribute	NC_GLOBAL	instruments_4_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_4_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB20/
attribute	NC_GLOBAL	instruments_4_instrument_name	String	Spectrophotometer
attribute	NC_GLOBAL	instruments_4_instrument_nid	String	707
attribute	NC_GLOBAL	instruments_4_supplied_name	String	Agilent 8454 UV-visible spectrophotometer
attribute	NC_GLOBAL	instruments_5_dataset_instrument_nid	String	794174
attribute	NC_GLOBAL	instruments_5_description	String	A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
attribute	NC_GLOBAL	instruments_5_instrument_name	String	Pump
attribute	NC_GLOBAL	instruments_5_instrument_nid	String	726
attribute	NC_GLOBAL	instruments_5_supplied_name	String	Peristaltic or diaphragm pump
attribute	NC_GLOBAL	instruments_6_acronym	String	Apollo SciTech AS-C3
attribute	NC_GLOBAL	instruments_6_dataset_instrument_nid	String	794175
attribute	NC_GLOBAL	instruments_6_description	String	A Dissolved Inorganic Carbon (DIC) analyser, for use in aquatic carbon dioxide parameter analysis of coastal waters, sediment pore-waters, and time-series incubation samples. The analyser consists of a solid state infrared CO2 detector, a mass-flow controller, and a digital pump for transferring accurate amounts of reagent and sample. The analyser uses an electronic cooling system to keep the reactor temperature below 3 degrees Celsius, and a Nagion dry tube to reduce the water vapour and keep the analyser drift-free and maintenance-free for longer. The analyser can handle sample volumes from 0.1 - 1.5 millilitres, however the best results are obtained from sample volumes between 0.5 - 1 millilitres. It takes approximately 3 minutes per analysis, and measurement precision is plus or minus 2 micromoles per kilogram or higher for surface seawater. It is designed for both land based and shipboard laboratory use.
attribute	NC_GLOBAL	instruments_6_instrument_name	String	Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyser
attribute	NC_GLOBAL	instruments_6_instrument_nid	String	768590
attribute	NC_GLOBAL	instruments_6_supplied_name	String	Apollo SciTech DIC auto-analyzer (Model AS-C3)
attribute	NC_GLOBAL	instruments_7_acronym	String	YSI EXO
attribute	NC_GLOBAL	instruments_7_dataset_instrument_nid	String	794180
attribute	NC_GLOBAL	instruments_7_description	String	Comprehensive multi-parameter, water-quality monitoring sondes designed for long-term monitoring, profiling and spot sampling. The EXO sondes are split into several categories: EXO1 Sonde, EXO2 Sonde, EXO3 Sonde. Each category has a slightly different design purpose with the the EXO2 and EXO3 containing more sensor ports than the EXO1. Data are collected using up to four user-replaceable sensors and an integral pressure transducer. Users communicate with the sonde via a field cable to an EXO Handheld, via Bluetooth wireless connection to a PC, or a USB connection to a PC. Typical parameter specifications for relevant sensors include dissolved oxygen with ranges of 0-50 mg/l, with a resolution of +/- 0.1 mg/l, an accuracy of 1 percent of reading for values between 0-20 mg/l and an accuracy of +/- 5 percent of reading for values 20-50 mg/l. Temp ranges are from-5 to +50 degC, with an accuracy of +/- 0.001 degC. Conductivity has a range of 0-200 mS/cm, with an accuracy of +/-0.5 percent of reading + 0.001 mS/cm and a resolution of 0.0001 - 0.01 mS/cm.
attribute	NC_GLOBAL	instruments_7_instrument_name	String	YSI EXO multiparameter water quality sondes
attribute	NC_GLOBAL	instruments_7_instrument_nid	String	768595
attribute	NC_GLOBAL	instruments_7_supplied_name	String	YSI EXO2 Sonde
attribute	NC_GLOBAL	keywords	String	alk, altimetry, bco, bco-dmo, biological, chemical, chemistry, commerce, data, dataset, date, department, descrip, dic, dmo, doc, earth, Earth Science > Oceans > Ocean Chemistry > pH, elevation, erddap, iso, laboratory, latitude, longitude, management, ocean, oceanography, oceans, office, org, OrgAlk, preliminary, reported, sal, sample, sample_descrip, satellite, scale, science, sea, sea_water_ph_reported_on_total_scale, seawater, Temp, temperature, time, total, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/794163/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/794163
attribute	NC_GLOBAL	Northernmost_Northing	double	41.5546
attribute	NC_GLOBAL	param_mapping	String	{'794163': {'lat': 'flag - latitude', 'lon': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/794163/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_0_person_name	String	Zhaohui Aleck Wang
attribute	NC_GLOBAL	people_0_person_nid	String	51347
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	United States Geological Survey
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	USGS
attribute	NC_GLOBAL	people_1_person_name	String	Meagan Gonneea
attribute	NC_GLOBAL	people_1_person_nid	String	768545
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	United States Geological Survey
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	USGS
attribute	NC_GLOBAL	people_2_person_name	String	Kevin Kroeger
attribute	NC_GLOBAL	people_2_person_nid	String	768544
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	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_3_person_name	String	Shuzhen Song
attribute	NC_GLOBAL	people_3_person_nid	String	794313
attribute	NC_GLOBAL	people_3_role	String	Student
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
attribute	NC_GLOBAL	people_4_person_name	String	Zhaohui Aleck Wang
attribute	NC_GLOBAL	people_4_person_nid	String	51347
attribute	NC_GLOBAL	people_4_role	String	Contact
attribute	NC_GLOBAL	people_4_role_type	String	related
attribute	NC_GLOBAL	people_5_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_5_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_5_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_5_person_nid	String	51498
attribute	NC_GLOBAL	people_5_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_5_role_type	String	related
attribute	NC_GLOBAL	project	String	Salt Marsh Paradox
attribute	NC_GLOBAL	projects_0_acronym	String	Salt Marsh Paradox
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: Carbon production in vegetated coastal systems such as marshes is among the highest in the biosphere. Resolving carbon production from marshes and assessing their impacts on coastal carbon cycling are critical to determining the long-term impacts of global change such as ocean acidification and eutrophication. In this project, researchers will use new methods to improve the assessment of carbon production from salt marshes. The overarching goals are to understand the role of coastal wetlands in altering carbonate chemistry, alkalinity, and carbon budgets of the coastal ocean, as well as their capacity to buffer against anthropogenically driven chemical changes, such as ocean acidification. This project will involve training for undergraduate, graduate, and postdoctoral researchers, and will provide educational opportunities for students from a local Native American tribe. Tidal water, after exchange with intertidal salt marshes, contains higher total alkalinity (TA), higher carbon dioxide, but lower pH. These highly productive, vegetated wetlands are deemed to export both alkalinity and dissolved inorganic carbon (DIC) to the ocean. This creates an apppartent paradox in that salt marshes are both an acidifying and alkalizing source to the ocean. Limited studies suggest that marsh DIC and alkalinity export fluxes may be a significant player in regional and global carbon budgets, but the current estimates are still far too uncertain to be conclusive. Unfortunately, tidal marsh ecosystems have dramatically diminished in the recent past, and are likely to diminish further due to sea level rise, land development, eutrophication, and other anthropogenic pressures. To assess the potential impacts of this future change, it is imperative to understand its current status and accurately evaluate its significatce to other parts of the carbon cycle. Similarly, little is know about the distinct sources of DIC and alkalinity being exported from marshes via tidal exchange, although aerobic and various anaerobic respiration processes have been indicated. In this study, researchers will undertake an in-depth study using new methods to vastly improve export fluxes from intertidal salt marshes through tidal exchange over minutes to annual scales, characterize and evaluate the compostiion (carbonate versus non-carbonate alkalinity) of marsh exported TA, the role and significance of the DOC pool in altering carbonate chemistry and export fluxes, identify sources of DIC being exported in tidal water, and investigate how marsh export of TA and DIC impacts carbonate chemistry and the carbon and alkalinity budgets in coastal waters.
attribute	NC_GLOBAL	projects_0_end_date	String	2019-02
attribute	NC_GLOBAL	projects_0_geolocation	String	Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA at approx. 41.5546N, -70.5071W
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: The Paradox of Salt Marshes as a Source of Alkalinity and Low pH, High Carbon Dioxide Water to the Ocean: A First In-depth Study of A Diminishing Source
attribute	NC_GLOBAL	projects_0_project_nid	String	765032
attribute	NC_GLOBAL	projects_0_start_date	String	2015-03
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	41.5
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Discrete bottle sample measurements for carbonate chemistry, organic alkalinity and organic carbon from samples collected in Waquoit Bay and Vineyard Sound, MA in 2016.
attribute	NC_GLOBAL	time_coverage_end	String	2018-07-09T17:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2016-05-09T12:26:00Z
attribute	NC_GLOBAL	title	String	[Salt marsh carbonate and organic carbon chemistry 2016] - Discrete bottle sample measurements for carbonate chemistry, organic alkalinity and organic carbon from samples collected in Waquoit Bay and Vineyard Sound, MA in 2016 (Collaborative Research: The Paradox of Salt Marshes as a Source of Alkalinity and Low pH, High Carbon Dioxide Water to the Ocean: A First In-depth Study of A Diminishing Source)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-70.5071
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	sample_descrip		String
attribute	sample_descrip	bcodmo_name	String	sample_descrip
attribute	sample_descrip	description	String	Sample description
attribute	sample_descrip	long_name	String	Sample Descrip
attribute	sample_descrip	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	41.5, 41.5546
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 of sample collection
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	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-70.5071, -70.4
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 of sample collection
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	DIC		short
attribute	DIC	_FillValue	short	32767
attribute	DIC	actual_range	short	1658, 2332
attribute	DIC	bcodmo_name	String	DIC
attribute	DIC	description	String	Dissolved inorganic carbon
attribute	DIC	long_name	String	DIC
attribute	DIC	units	String	micromoles per kilogram (umol kg-1)
variable	TA		short
attribute	TA	_FillValue	short	32767
attribute	TA	actual_range	short	715, 2212
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	micromoles per kilogram (umol kg-1)
variable	OrgAlk		short
attribute	OrgAlk	_FillValue	short	32767
attribute	OrgAlk	actual_range	short	16, 485
attribute	OrgAlk	bcodmo_name	String	unknown
attribute	OrgAlk	description	String	Organic alkalinity
attribute	OrgAlk	long_name	String	Org Alk
attribute	OrgAlk	units	String	micromoles per kilogram (umol kg-1)
variable	DOC		short
attribute	DOC	_FillValue	short	32767
attribute	DOC	actual_range	short	85, 7459
attribute	DOC	bcodmo_name	String	DOC
attribute	DOC	description	String	Dissolved organic carbon
attribute	DOC	long_name	String	DOC
attribute	DOC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CORGZZZX/
attribute	DOC	units	String	micromoles per kilogram (umol kg-1)
variable	pH		float
attribute	pH	_FillValue	float	NaN
attribute	pH	actual_range	float	6.48, 7.976
attribute	pH	bcodmo_name	String	pH
attribute	pH	colorBarMaximum	double	9.0
attribute	pH	colorBarMinimum	double	7.0
attribute	pH	description	String	Water pH
attribute	pH	long_name	String	Sea Water Ph Reported On Total Scale
attribute	pH	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/
attribute	pH	units	String	unitless
variable	Temp		float
attribute	Temp	_FillValue	float	NaN
attribute	Temp	actual_range	float	5.5, 30.1
attribute	Temp	bcodmo_name	String	temperature
attribute	Temp	description	String	Water temperature
attribute	Temp	long_name	String	Temperature
attribute	Temp	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/
attribute	Temp	units	String	degrees Celsius
variable	Sal		float
attribute	Sal	_FillValue	float	NaN
attribute	Sal	actual_range	float	0.5, 32.2
attribute	Sal	bcodmo_name	String	sal
attribute	Sal	description	String	Water salinity
attribute	Sal	long_name	String	Sal
attribute	Sal	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/
attribute	Sal	units	String	practical salinity scale
variable	Elevation		float
attribute	Elevation	_FillValue	float	NaN
attribute	Elevation	actual_range	float	-1.66, 0.64
attribute	Elevation	bcodmo_name	String	sea_elevation
attribute	Elevation	description	String	Water elevation (North American Vertical Datum of 1988 or NAVD88)
attribute	Elevation	long_name	String	Elevation
attribute	Elevation	units	String	meters
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.46279676E9, 1.5311556E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	Date and time (UTC) in ISO 8601 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.