ERDDAP > info > bcodmo_dataset_746344

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	Summary of carbon and nitrogen concentrations and isotope ratios from samples of eelgrass from Virginia Coastal Lagoons and turtlegrass from St George Sound FL		I   M	background			BCO-DMO	bcodmo_dataset_746344

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	Seagrass samples were collected randomly from each site by hand using 6\" diameter PVC cores pounded into the sediment. Intact plants, including roots and rhizomes, were separated from the sediment and organic debris. The green shoots were separated from roots & rhizomes, rinsed in fresh water and dried separately at -60\u00b0 C. Dried samples were ground in a mortar and pestle using liquid nitrogen and re-dried. The dry powder was analyzed for percent Carbon, percent Nitrogen, delta-13C, and delta-15N by the Stable Isotope Facility, U.C. Davis. Samples were collected by hand, using hand tools.\u00a0 Chemical and isotope analyses were performed by the Stable Isotope Facility, UC Davis using a PDZ Europa ANCA-GSL elemental analyzer interfaced to a PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK). Data were segregated by location, tissue type,\u00a0and species.\u00a0 Means and errors were calculated from 10 to 90 replicate samples (separate plants).
attribute	NC_GLOBAL	awards_0_award_nid	String	648650
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1635403
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	David L. Garrison
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50534
attribute	NC_GLOBAL	awards_1_award_nid	String	710233
attribute	NC_GLOBAL	awards_1_award_number	String	OCE-1633951
attribute	NC_GLOBAL	awards_1_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1633951
attribute	NC_GLOBAL	awards_1_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_1_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_1_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_1_program_manager	String	Michael E. Sieracki
attribute	NC_GLOBAL	awards_1_program_manager_nid	String	50446
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Seagrass C, N & isotope composition summary statistics Eelgrass from Virginia Coastal Lagoons and turtlegrass from St George Sound FL PI: R. Zimmerman (ODU) version: 2018-10-10
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	2018-09-17T19:33:41Z
attribute	NC_GLOBAL	date_modified	String	2019-03-20T13:57:59Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.746344.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-75.732307
attribute	NC_GLOBAL	geospatial_lat_max	double	37.343211
attribute	NC_GLOBAL	geospatial_lat_min	double	29.853211
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-75.732307
attribute	NC_GLOBAL	geospatial_lon_min	double	-84.551509
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/746344
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used for chemical and isotope analyses.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	746351
attribute	NC_GLOBAL	instruments_0_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_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_0_supplied_name	String	PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK)
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Used for chemical and isotope analyses.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	746352
attribute	NC_GLOBAL	instruments_1_description	String	Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB01/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Elemental Analyzer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	546339
attribute	NC_GLOBAL	instruments_1_supplied_name	String	PDZ Europa ANCA-GSL elemental analyzer
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, C_to_N, chemical, collected, d13, d13C, d15, d15N, data, dataset, date, dmo, erddap, latitude, Location, longitude, management, oceanography, office, pcnt, pcnt_C_g_per_gDW, pcnt_N_g_per_gDW, per, preliminary, time, tissue, value
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/746344/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/746344
attribute	NC_GLOBAL	Northernmost_Northing	double	37.343211
attribute	NC_GLOBAL	param_mapping	String	{'746344': {'lat': 'master - latitude', 'date_collected': 'flag - time', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/746344/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Old Dominion University
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	ODU
attribute	NC_GLOBAL	people_0_person_name	String	Richard C. Zimmerman
attribute	NC_GLOBAL	people_0_person_nid	String	51308
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	Old Dominion University
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	ODU
attribute	NC_GLOBAL	people_1_person_name	String	David J Burdige
attribute	NC_GLOBAL	people_1_person_nid	String	648653
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	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	Seagrass Blue Carbon
attribute	NC_GLOBAL	projects_0_acronym	String	Seagrass Blue Carbon
attribute	NC_GLOBAL	projects_0_description	String	NSF abstract: This research will develop a quantitative understanding of the factors controlling carbon cycling in seagrass meadows that will improve our ability to quantify their potential as blue carbon sinks and predict their future response to climate change, including sea level rise, ocean warming and ocean acidification. This project will advance a new generation of bio-optical-geochemical models and tools (ECHOES) that have the potential to be transform our ability to measure and predict carbon dynamics in shallow water systems. This study will utilize cutting-edge methods for evaluating oxygen and carbon exchange (Eulerian and eddy covariance techniques) combined with biomass, sedimentary, and water column measurements to develop and test numerical models that can be scaled up to quantify the dynamics of carbon cycling and sequestration in seagrass meadows in temperate and tropical environments of the West Atlantic continental margin that encompass both siliciclastic and carbonate sediments. The comparative analysis across latitudinal and geochemical gradients will address the relative contributions of different species and geochemical processes to better constrain the role of seagrass carbon sequestration to global biogeochemical cycles. Specifically the research will quantify: (i) the relationship between C stocks and standing biomass for different species with different life histories and structural complexity, (ii) the influence of above- and below-ground metabolism on carbon exchange, and (iii) the influence of sediment type (siliciclastic vs. carbonate) on Blue Carbon storage. Seagrass biomass, growth rates, carbon content and isotope composition (above- and below-ground), organic carbon deposition and export will be measured. Sedimentation rates and isotopic composition of PIC, POC, and iron sulfide precipitates, as well as porewater concentrations of dissolved sulfide, CO2, alkalinity and salinity will be determined in order to develop a bio-optical-geochemical model that will predict the impact of seagrass metabolism on sediment geochemical processes that control carbon cycling in shallow waters. Model predictions will be validated against direct measurements of DIC and O2 exchange in seagrass meadows, enabling us to scale-up the density-dependent processes to predict the impacts of seagrass distribution and density on carbon cycling and sequestration across the submarine landscape. Status, as of 09 June 2016: This project has been recommended for funding by NSF's Division of Ocean Sciences.
attribute	NC_GLOBAL	projects_0_end_date	String	2019-07
attribute	NC_GLOBAL	projects_0_geolocation	String	Chesapeake Bay, Northern Gulf of Mexico, and Bahamas Banks
attribute	NC_GLOBAL	projects_0_name	String	Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2
attribute	NC_GLOBAL	projects_0_project_nid	String	648649
attribute	NC_GLOBAL	projects_0_start_date	String	2016-08
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	29.853211
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	This dataset includes a summary of results of carbon and nitrogen analyses on seagrasses collected in the Virginia Coastal Lagoons and from St. George Sound FL. Mean carbon and nitrogen concentrations and their isotope ratios are reported for leaf and root/rhizome samples. Also reported are the standard deviation, standard error, number of samples in the means, and the 95% confidence limits.
attribute	NC_GLOBAL	time_coverage_end	String	2017-07
attribute	NC_GLOBAL	time_coverage_start	String	2017-05
attribute	NC_GLOBAL	title	String	Summary of carbon and nitrogen concentrations and isotope ratios from samples of eelgrass from Virginia Coastal Lagoons and turtlegrass from St George Sound FL
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-84.551509
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Location		String
attribute	Location	bcodmo_name	String	site
attribute	Location	description	String	Location of sample collection
attribute	Location	long_name	String	Location
attribute	Location	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	29.853211, 37.343211
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	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-84.551509, -75.732307
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 postive
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	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.4935968E9, 1.4988672E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	date
attribute	time	description	String	date that the samples were collected; formatted as yyyy-mm
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Date Collected
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	time	source_name	String	date_collected
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	Tissue		String
attribute	Tissue	bcodmo_name	String	sample_type
attribute	Tissue	description	String	type of plant tissue that was analyzed
attribute	Tissue	long_name	String	Tissue
attribute	Tissue	units	String	unitless
variable	value		String
attribute	value	bcodmo_name	String	unknown
attribute	value	description	String	statistical parameter being reported
attribute	value	long_name	String	Value
attribute	value	units	String	unitless
variable	d13C		float
attribute	d13C	_FillValue	float	NaN
attribute	d13C	actual_range	float	-10.88, 91.0
attribute	d13C	bcodmo_name	String	d13C
attribute	d13C	description	String	the ratio of stable isotopes 13C:12C
attribute	d13C	long_name	String	D13 C
attribute	d13C	units	String	unitless
variable	d15N		float
attribute	d15N	_FillValue	float	NaN
attribute	d15N	actual_range	float	0.09, 91.0
attribute	d15N	bcodmo_name	String	d15N
attribute	d15N	description	String	the ratio of stable isotopes 15N:14N
attribute	d15N	long_name	String	D15 N
attribute	d15N	units	String	unitless
variable	pcnt_C_g_per_gDW		float
attribute	pcnt_C_g_per_gDW	_FillValue	float	NaN
attribute	pcnt_C_g_per_gDW	actual_range	float	0.29, 91.0
attribute	pcnt_C_g_per_gDW	bcodmo_name	String	C
attribute	pcnt_C_g_per_gDW	description	String	percent Carbon in sample dry weight
attribute	pcnt_C_g_per_gDW	long_name	String	Pcnt C G Per G DW
attribute	pcnt_C_g_per_gDW	units	String	unitless (grams/grams)
variable	pcnt_N_g_per_gDW		float
attribute	pcnt_N_g_per_gDW	_FillValue	float	NaN
attribute	pcnt_N_g_per_gDW	actual_range	float	0.03, 91.0
attribute	pcnt_N_g_per_gDW	bcodmo_name	String	N
attribute	pcnt_N_g_per_gDW	description	String	percent Nitrogen in sample dry weight
attribute	pcnt_N_g_per_gDW	long_name	String	Pcnt N G Per G DW
attribute	pcnt_N_g_per_gDW	units	String	unitless (grams/grams)
variable	C_to_N		float
attribute	C_to_N	_FillValue	float	NaN
attribute	C_to_N	actual_range	float	0.18, 91.0
attribute	C_to_N	bcodmo_name	String	C_to_N
attribute	C_to_N	description	String	Carbon to Nitrogen ratio
attribute	C_to_N	long_name	String	C To N
attribute	C_to_N	units	String	unitless

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.