ERDDAP > info > bcodmo_dataset_731256

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	Predictions of photosynthesis and carbon use for diffusive uptake under light, temperature and pCO2 using a productivity model, 2014-2015 (Seaweed OA Resilience project)		I   M	background			BCO-DMO	bcodmo_dataset_731256

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
attribute	NC_GLOBAL	acquisition_description	String	Expected values of carbonate chemistry in seawater of specified conditions were calculated using CO2Calc (Robbins et al. 2010). Estimates of photosynthetic responses of CO2-using red algae under specified conditions of light intensity, temperature and pCO2 were made using published data on rates of photosynthesis as functions of light intensity and temperature and the predicted availability and diffusive uptake rate of CO2 at the plant surface in seawater. Pathlength of diffusion of CO2 from seawater to the site of carbon fixation was assumed to be 20 microns for these data representing photosynthetic rates (See K\u00fcbler and Dudgeon 2015). Further methodology references are listed below.
attribute	NC_GLOBAL	awards_0_award_nid	String	55177
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1316198
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=1316198
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	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Predictions of photosynthesis and carbon use for diffusive uptake under light, temperature and pCO2 PI's: J. Kubler, S. Dudgeon (CSU-Northridge) version: 2018-03-19
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	2018-03-21T15:07:43Z
attribute	NC_GLOBAL	date_modified	String	2019-12-11T16:15:04Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.731256.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/731256
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	alpha, alpha_org, bco, bco-dmo, biological, carbon, carbon dioxide, carbonate, chemical, chemistry, co2, co3, d13, d13C, d13C_CO2_SW, data, dataset, dco2, dioxide, dmo, earth, Earth Science > Oceans > Ocean Chemistry > pH, eb_a, erddap, frac, half, hco3, HCO3_CO3_frac, K_half_sat, light, management, ocean, oceanography, oceans, office, org, pCO2, preliminary, pressure, reported, sat, scale, science, sea, sea_water_ph_reported_on_total_scale, seawater, surface, Temp, temperature, total, variation, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/731256/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/731256
attribute	NC_GLOBAL	param_mapping	String	{'731256': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/731256/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	California State University Northridge
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	CSU-Northridge
attribute	NC_GLOBAL	people_0_person_name	String	Dr Janet E Kubler
attribute	NC_GLOBAL	people_0_person_nid	String	51681
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	California State University Northridge
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	CSU-Northridge
attribute	NC_GLOBAL	people_1_person_name	String	Dr Steve Dudgeon
attribute	NC_GLOBAL	people_1_person_nid	String	51682
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	Seaweed OA Resilience
attribute	NC_GLOBAL	projects_0_acronym	String	Seaweed OA Resilience
attribute	NC_GLOBAL	projects_0_description	String	Benthic macroalgae contribute to intensely productive near shore ecosystems and little is known about the potential effects of ocean acidification on non-calcifying macroalgae. Kübler and Dudgeon will test hypotheses about two macroalgae, Ulva spp. and Plocamium cartilagineum, which, for different reasons, are hypothesized to be more productive and undergo ecological expansions under predicted changes in ocean chemistry. They have designed laboratory culture-based experiments to quantify the scope for response to ocean acidification in Plocamium, which relies solely on diffusive uptake of CO2, and populations of Ulva spp., which have an inducible concentrating mechanism (CCM). The investigators will culture these algae in media equilibrated at 8 different pCO2 levels ranging from 380 to 940 ppm to address three key hypotheses. The first is that macroalgae (such as Plocamium cartilagineum) that are not able to acquire inorganic carbon in changed form will benefit, in terms of photosynthetic and growth rates, from ocean acidification. There is little existing data to support this common assumption. The second hypothesis is that enhanced growth of Ulva sp. under OA will result from the energetic savings from down regulating the CCM, rather than from enhanced photosynthesis per se. Their approach will detect existing genetic variation for adaptive plasticity. The third key hypothesis to be addressed in short-term culture experiments is that there will be a significant interaction between ocean acidification and nitrogen limited growth of Ulva spp., which are indicator species of eutrophication. Kübler and Dudgeon will be able to quantify the individual effects of ocean acidification and nitrogenous nutrient addition on Ulva spp. and also, the synergistic effects, which will inevitably apply in many highly productive, shallow coastal areas. The three hypotheses being addressed have been broadly identified as urgent needs in our growing understanding of the impacts of ocean acidification.
attribute	NC_GLOBAL	projects_0_end_date	String	2016-05
attribute	NC_GLOBAL	projects_0_geolocation	String	Temperate coastal waters of the USA (30 - 45 N latitude, -66 to -88 W and -117 to -125 W longitude)
attribute	NC_GLOBAL	projects_0_name	String	Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae
attribute	NC_GLOBAL	projects_0_project_nid	String	2275
attribute	NC_GLOBAL	projects_0_start_date	String	2013-06
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	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	This dataset represents calculations from a model of photosynthesis by diffusive uptake of only CO2 given expected abundance of carbonate chemistry parameters in ocean water of known temperature salinity and depth.
attribute	NC_GLOBAL	title	String	Predictions of photosynthesis and carbon use for diffusive uptake under light, temperature and pCO2 using a productivity model, 2014-2015 (Seaweed OA Resilience project)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Light		short
attribute	Light	_FillValue	short	32767
attribute	Light	actual_range	short	10, 400
attribute	Light	bcodmo_name	String	irradiance
attribute	Light	description	String	Light intensity
attribute	Light	long_name	String	Light
attribute	Light	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/VSRW/
attribute	Light	units	String	?
variable	pH		float
attribute	pH	_FillValue	float	NaN
attribute	pH	actual_range	float	7.73, 8.1
attribute	pH	bcodmo_name	String	pH
attribute	pH	colorBarMaximum	double	9.0
attribute	pH	colorBarMinimum	double	7.0
attribute	pH	description	String	Potential of Hydrogen in pH scale
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		byte
attribute	Temp	_FillValue	byte	127
attribute	Temp	actual_range	byte	5, 30
attribute	Temp	bcodmo_name	String	temperature
attribute	Temp	description	String	Temperature of seawater
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	pCO2		float
attribute	pCO2	_FillValue	float	NaN
attribute	pCO2	actual_range	float	337.915, 936.3
attribute	pCO2	bcodmo_name	String	pCO2
attribute	pCO2	description	String	Partial pressure of CO2 in seawater
attribute	pCO2	long_name	String	P CO2
attribute	pCO2	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PCO2C101/
attribute	pCO2	units	String	micro-atmospheres (µatm)
variable	HCO3		float
attribute	HCO3	_FillValue	float	NaN
attribute	HCO3	actual_range	float	1611.11, 2071.034
attribute	HCO3	bcodmo_name	String	bicarbonate
attribute	HCO3	description	String	Concentration of bicarbonate in seawater
attribute	HCO3	long_name	String	HCO3
attribute	HCO3	units	String	micromoles/kilogram (µmol/kg)
variable	CO3		float
attribute	CO3	_FillValue	float	NaN
attribute	CO3	actual_range	float	51.144, 239.762
attribute	CO3	bcodmo_name	String	carbonate
attribute	CO3	description	String	Concentration of carbonate in seawater
attribute	CO3	long_name	String	CO3
attribute	CO3	units	String	micromoles/kilogram (µmol/kg)
variable	CO2		float
attribute	CO2	_FillValue	float	NaN
attribute	CO2	actual_range	float	8.608, 45.249
attribute	CO2	bcodmo_name	String	TCO2
attribute	CO2	description	String	Concentration of CO2 in seawater
attribute	CO2	long_name	String	CO2
attribute	CO2	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/TCO2KG01/
attribute	CO2	units	String	micromoles/kilogram (µmol/kg)
variable	DCO2		float
attribute	DCO2	_FillValue	float	NaN
attribute	DCO2	actual_range	float	1.16E-9, 2.3E-9
attribute	DCO2	bcodmo_name	String	unknown
attribute	DCO2	description	String	Molecular diffusion coefficient of CO2 (taken from Zeebe 2011)
attribute	DCO2	long_name	String	DCO2
attribute	DCO2	units	String	CP2/meter^2/second (m-2 . s-1)
variable	eb_a		float
attribute	eb_a	_FillValue	float	NaN
attribute	eb_a	actual_range	float	-11.35, -8.42
attribute	eb_a	bcodmo_name	String	unknown
attribute	eb_a	description	String	Ratio of carbon isotope fractionation of dissolved CO2 with respect to dissolved HCO3 (taken from Table 4 of Mook et al. 1974)
attribute	eb_a	long_name	String	Eb A
attribute	eb_a	units	String	unitless
variable	HCO3_CO3_frac		float
attribute	HCO3_CO3_frac	_FillValue	float	NaN
attribute	HCO3_CO3_frac	actual_range	float	0.979, 0.995
attribute	HCO3_CO3_frac	bcodmo_name	String	unknown
attribute	HCO3_CO3_frac	description	String	Ratio of bicarbonate to carbonate fraction expressed per total inorganic carbon
attribute	HCO3_CO3_frac	long_name	String	HCO3 CO3 Frac
attribute	HCO3_CO3_frac	units	String	unitless
variable	d13C_CO2_SW		float
attribute	d13C_CO2_SW	_FillValue	float	NaN
attribute	d13C_CO2_SW	actual_range	float	-11.251, -8.322
attribute	d13C_CO2_SW	bcodmo_name	String	delta13C
attribute	d13C_CO2_SW	description	String	Predicted delta 13C fraction of CO2 in seawater
attribute	d13C_CO2_SW	long_name	String	D13 C CO2 SW
attribute	d13C_CO2_SW	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/D13CMITX/
attribute	d13C_CO2_SW	units	String	parts per thousand (ppt)
variable	alpha_org		float
attribute	alpha_org	_FillValue	float	NaN
attribute	alpha_org	actual_range	float	1.021, 1.028
attribute	alpha_org	bcodmo_name	String	unknown
attribute	alpha_org	description	String	Weighted average of discrimination by organism against 13C due to discrimination against 13C by RUBISCO (1.029) and diffusion (1.0007) (see Raven 1997)
attribute	alpha_org	long_name	String	Alpha Org
attribute	alpha_org	units	String	unitless (a ratio of rate constants)
variable	d13C		float
attribute	d13C	_FillValue	float	NaN
attribute	d13C	actual_range	float	-38.588, -28.253
attribute	d13C	bcodmo_name	String	delta13C
attribute	d13C	description	String	Predicted Isotopic composition of delta 13C of plant relative to Pee Dee Belemnite calculated as (((d13_CO2_SW/1000) - alpha_org+1)/alpha_org)*1000
attribute	d13C	long_name	String	D13 C
attribute	d13C	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/D13CMITX/
attribute	d13C	units	String	parts per thousand (ppt)
variable	D		float
attribute	D	_FillValue	float	NaN
attribute	D	actual_range	float	20.51, 28.434
attribute	D	bcodmo_name	String	unknown
attribute	D	description	String	Predicted Discrimination against 13C by plant calculated as: ((((d13_CO2_SW/1000)-(d13C/1000))/(1+d13C/10000)))*1000
attribute	D	long_name	String	D
attribute	D	units	String	parts per thousand (ppt)
variable	K_half_sat		float
attribute	K_half_sat	_FillValue	float	NaN
attribute	K_half_sat	actual_range	float	3012.36, 7501.26
attribute	K_half_sat	bcodmo_name	String	unknown
attribute	K_half_sat	description	String	Light-dependent values of K1/2 for carbon fixation taken from saturating and low light CO2-using seaweeds in Johnston et al. 1992
attribute	K_half_sat	long_name	String	K Half Sat
attribute	K_half_sat	units	String	moles/meter^3 (mol . m-3)
variable	PS		float
attribute	PS	_FillValue	float	NaN
attribute	PS	actual_range	float	0.049, 2.809
attribute	PS	bcodmo_name	String	C_photosyn
attribute	PS	description	String	Predicted photosynthetic rate based on Hill-Whittingham equation for aquatic phototrophs with diffusive uptake of carbon (Hill and Whittingham 1955)
attribute	PS	long_name	String	Surface Pressure Variation
attribute	PS	units	String	micromoles C-fixed/meter^2/second

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.