ERDDAP > info > bcodmo_dataset_728371

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	[Sensor calibration data] - Factory and field calibration data for float oxygen, beam transmission, backscatter, chlorophyll fluorescence and CDOM sensors from the Sargasso Sea from 2013-2014. (Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean)		I   M	background			BCO-DMO	bcodmo_dataset_728371

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	Multiple deployments of two Sea-Bird Scientific Navis BGCi floats (numbers F033 and F034) equipped with CTDs, transmissometers, O2 optodes, backscattering (700 nm), fluorescence (chlorophyll, colored dissolved organic matter), and tilt sensors were conducted between July 2013 and November 2014 in conjunction with Bermuda Atlantic Time-series Study cruises. Short-term deployments (1.5 \u2013 3 days) followed by recovery of the floats were conducted during four monthly BATS cruises in July \u2013 October 2013 and one cruise in March 2014. Both floats were deployed during the July and August 2013 cruises and float F034 was deployed for the remaining cruises. Each float collected one profile per cruise with the exception of the August 2013 cruise, during which the two floats together collected 13 profiles. During short-term deployments, floats first completed an initial descent and ascent without parking, then completed 1 or 2 more profile cycles with different, consecutive target depths. Following the initial descent/ascent described above, the short-term profile cycles were structured as described below for long-term deployments. In addition to the short-term cruise deployments, F033 profiled continuously from October 2013 until early April 2014, yielding 77 profiles, and F034 profiled continuously from March 2014 until late November 2014, yielding 139 profiles. During these long-term deployments, a typical cycle consisted of 1) the descent to the target park depth, 2) a park phase at the target depth lasting 1.5 \u2013 2.5 days during which measurements are made every 15 minutes, 3) a descent to 1000 dbar, 4) an ascent to the surface during which measurements are made, and 5) a surface telemetry phase, during which a GPS fix is obtained, data are uploaded via Iridium, and instructions for the next cycle are downloaded. During long-term deployments, floats cycled through park phases at 150/200, 300, 500, and 1000 dbar every 7 days, spending 2.5 days at 1000 dbar and 1.5 days at the shallower depths. The sequence of park phase depth at the three shallowest depths was varied between each 7-day cycle over a 21-day period to avoid aliasing in particle flux profiles. Refer to [https://www.bco-dmo.org/project/2124](\\"http://www.bco- dmo.org/project/2124\\") or [http://bats.bios.edu](\\"http://bats.bios.edu/\\") for a description of BATS bottle sample acquisition.
attribute	NC_GLOBAL	awards_0_award_nid	String	644826
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1406552
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1406552
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	Float and BATS M. Estapa and K. Buesseler, PIs Version 12 April 2018
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	2018-02-26T20:24:44Z
attribute	NC_GLOBAL	date_modified	String	2018-09-19T20:20:38Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.734349
attribute	NC_GLOBAL	geospatial_vertical_max	double	798.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	11.0
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/728371
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	CTD Sea-Bird
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used for sampling
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	728378
attribute	NC_GLOBAL	instruments_0_description	String	Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/130/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	CTD Sea-Bird
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	447
attribute	NC_GLOBAL	instruments_0_supplied_name	String	SBE 41CP CTD
attribute	NC_GLOBAL	instruments_1_acronym	String	Fluorometer
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Used for sampling
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	733218
attribute	NC_GLOBAL	instruments_1_description	String	A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/113/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Fluorometer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	484
attribute	NC_GLOBAL	instruments_1_supplied_name	String	WET Labs MCOMS Chlorophyll Fluorometer
attribute	NC_GLOBAL	instruments_2_acronym	String	Transmissometer
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Used to measure fraction of light
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	733224
attribute	NC_GLOBAL	instruments_2_description	String	A transmissometer measures the beam attenuation coefficient of the lightsource over the instrument's path-length. This instrument designation is used when specific manufacturer, make and model are not known.
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/124/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Transmissometer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	491
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Transmissometer
attribute	NC_GLOBAL	instruments_3_acronym	String	Dissolved Oxygen Sensor
attribute	NC_GLOBAL	instruments_3_dataset_instrument_description	String	Used to sample dissolved oxygen
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	728379
attribute	NC_GLOBAL	instruments_3_description	String	An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed
attribute	NC_GLOBAL	instruments_3_instrument_name	String	Dissolved Oxygen Sensor
attribute	NC_GLOBAL	instruments_3_instrument_nid	String	705
attribute	NC_GLOBAL	instruments_3_supplied_name	String	SBE63 optode
attribute	NC_GLOBAL	instruments_4_acronym	String	OBS
attribute	NC_GLOBAL	instruments_4_dataset_instrument_description	String	Used to sample backscatter
attribute	NC_GLOBAL	instruments_4_dataset_instrument_nid	String	733219
attribute	NC_GLOBAL	instruments_4_instrument_name	String	Optical Backscatter Sensor
attribute	NC_GLOBAL	instruments_4_instrument_nid	String	686843
attribute	NC_GLOBAL	instruments_4_supplied_name	String	WET Labs MCOMS Scattering Meter
attribute	NC_GLOBAL	keywords	String	bats, BATS_chla, BATS_Depth, BATS_O2, BATS_POC, bbp, bco, bco-dmo, biological, bottle, Bottle_ID, chemical, chemistry, chlorophyll, concentration, concentration_of_chlorophyll_in_sea_water, data, dataset, depth, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, erddap, float, Float_bbp, Float_chla, Float_O2, Float_pressure, Float_profile, management, O2, ocean, oceanography, oceans, office, oxygen, poc, preliminary, pressure, profile, science, sea, seawater, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/728371/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/728371
attribute	NC_GLOBAL	param_mapping	String	{'728371': {'BATS_Depth': 'master - depth'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/728371/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Skidmore College
attribute	NC_GLOBAL	people_0_person_name	String	Margaret L. Estapa
attribute	NC_GLOBAL	people_0_person_nid	String	644830
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_1_person_name	String	Kenneth O. Buesseler
attribute	NC_GLOBAL	people_1_person_nid	String	50522
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	Skidmore College
attribute	NC_GLOBAL	people_2_person_name	String	Margaret L. Estapa
attribute	NC_GLOBAL	people_2_person_nid	String	644830
attribute	NC_GLOBAL	people_2_role	String	Contact
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Hannah Ake
attribute	NC_GLOBAL	people_3_person_nid	String	650173
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	RapAutParticleFlux
attribute	NC_GLOBAL	projects_0_acronym	String	RapAutParticleFlux
attribute	NC_GLOBAL	projects_0_description	String	Particles settling into the deep ocean remove carbon and biologically-important trace elements from sunlit, productive surface waters and from contact with the atmosphere over short timescales. A shifting balance among physical, chemical, and biological processes determines the ultimate fate of most particles at depths between 100 and 1,000 m, where fluxes are hardest to measure. Our challenge is to expand the number of particle flux observations in the critical "twilight zone", something that has proven elusive with ship-based “snapshots” that have lengths of, at most, a few weeks. Here, we propose an optical, transmissometer-based method to make particle flux observations from autonomous, biogeochemical profiling floats. Novel developments in data interpretation, sensor operation, and platform control now allow flux measurements at hourly resolution and give us observational access to the water-column processes driving particle flux over short timescales. The sensors and float platforms that we propose to use are simple, robust, and commercially-available, making them immediately compatible with community-scale efforts to implement other float-based biogeochemical measurements. We have two main goals:  First, we will quantify particulate organic carbon (POC) flux using float-based optical measurements by validating our observations against fluxes measured directly with neutrally-buoyant, drifting sediment traps. Second, we will evaluate the contribution of rapid export events to total POC fluxes in the oligotrophic ocean by using a biogeochemical profiling float to collect nearly-continuous, depth-resolved flux measurements and coupled, water-column bio-optical profiles.  To achieve these goals, we will implement a work plan consisting of 1) a set of laboratory-based sensor calibration experiments to determine detection limits and evaluate sensitivity to particle size; 2) a series of four sediment trap and biogeochemical float co-deployments during which we will collect POC flux and field calibration data; and 3) a long-term sampling and analysis period (approximately 1 year) during which data will be returned by satellite from the biogeochemical float. We will conduct calibration fieldwork in conjunction with monthly Bermuda Atlantic Time-series Study (BATS) cruises, taking advantage of the timeseries measurements and the context provided by the 25-year record of POC flux at that site. The data returned by the float will comprise the first quantitative particle flux observations made at high-enough temporal resolution to interpret in the context of short-term, upper-ocean production events.
attribute	NC_GLOBAL	projects_0_end_date	String	2014-11
attribute	NC_GLOBAL	projects_0_geolocation	String	Sargasso Sea
attribute	NC_GLOBAL	projects_0_name	String	Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	644827
attribute	NC_GLOBAL	projects_0_start_date	String	2013-07
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	Optical proxy measurements of sinking particle flux and water-column bio-optical profiles were obtained from profiling floats in the Sargasso Sea to expand the number of particle flux observations in the critical and under-sampled \u201ctwilight zone\u201d. Factory and field calibration data for dissolved oxygen, beam transmission, optical backscatter, chlorophyll fluorescence and colored dissolved organic matter sensors are provided. Float oxygen, chlorophyll fluorescence, and backscatter sensors were additionally cross-calibrated to bottle samples for oxygen, HPLC chlorophyll, and particulate organic carbon collected during concurrent Bermuda Atlantic Time-series Study (BATS) cruises prior to months-long deployment of the floats in the Sargasso Sea.
attribute	NC_GLOBAL	title	String	[Sensor calibration data] - Factory and field calibration data for float oxygen, beam transmission, backscatter, chlorophyll fluorescence and CDOM sensors from the Sargasso Sea from 2013-2014. (Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Float_profile		String
attribute	Float_profile	bcodmo_name	String	deployno
attribute	Float_profile	description	String	Deployment number
attribute	Float_profile	long_name	String	Float Profile
attribute	Float_profile	units	String	unitless
variable	Float_pressure		short
attribute	Float_pressure	_FillValue	short	32767
attribute	Float_pressure	actual_range	short	8, 804
attribute	Float_pressure	bcodmo_name	String	pressure
attribute	Float_pressure	description	String	Float pressure
attribute	Float_pressure	long_name	String	Float Pressure
attribute	Float_pressure	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/
attribute	Float_pressure	units	String	dbar
variable	Float_O2		float
attribute	Float_O2	_FillValue	float	NaN
attribute	Float_O2	actual_range	float	150.2, 242.6
attribute	Float_O2	bcodmo_name	String	dissolved Oxygen
attribute	Float_O2	description	String	Float dissolved oxygen concentration
attribute	Float_O2	long_name	String	Float O2
attribute	Float_O2	units	String	umol/kg
variable	Float_chla		float
attribute	Float_chla	_FillValue	float	NaN
attribute	Float_chla	actual_range	float	5.0E-4, 0.455
attribute	Float_chla	bcodmo_name	String	chlorophyll a
attribute	Float_chla	colorBarMaximum	double	30.0
attribute	Float_chla	colorBarMinimum	double	0.03
attribute	Float_chla	colorBarScale	String	Log
attribute	Float_chla	description	String	Float chlorophyll-a
attribute	Float_chla	long_name	String	Concentration Of Chlorophyll In Sea Water
attribute	Float_chla	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	Float_chla	units	String	ug/L
variable	Float_bbp		float
attribute	Float_bbp	_FillValue	float	NaN
attribute	Float_bbp	actual_range	float	1.33E-4, 9.57E-4
attribute	Float_bbp	bcodmo_name	String	bbp700
attribute	Float_bbp	description	String	Float particulate backscattering coefficient
attribute	Float_bbp	long_name	String	Float Bbp
attribute	Float_bbp	units	String	m -1
variable	Bottle_ID		int
attribute	Bottle_ID	_FillValue	int	2147483647
attribute	Bottle_ID	actual_range	int	1029600617, 1030200808
attribute	Bottle_ID	bcodmo_name	String	bot
attribute	Bottle_ID	description	String	BATS bottle ID number
attribute	Bottle_ID	long_name	String	Bottle ID
attribute	Bottle_ID	units	String	unitless
variable	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	11.0, 798.0
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth
attribute	depth	description	String	BATS nominal depth where sample was taken
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	BATS 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	BATS_O2		float
attribute	BATS_O2	_FillValue	float	NaN
attribute	BATS_O2	actual_range	float	142.8, 246.1
attribute	BATS_O2	bcodmo_name	String	dissolved Oxygen
attribute	BATS_O2	description	String	BATS dissolved oxygen concentration
attribute	BATS_O2	long_name	String	BATS O2
attribute	BATS_O2	units	String	umol/kg
variable	BATS_chla		float
attribute	BATS_chla	_FillValue	float	NaN
attribute	BATS_chla	actual_range	float	0.001, 0.2288
attribute	BATS_chla	bcodmo_name	String	chlorophyll a
attribute	BATS_chla	colorBarMaximum	double	30.0
attribute	BATS_chla	colorBarMinimum	double	0.03
attribute	BATS_chla	colorBarScale	String	Log
attribute	BATS_chla	description	String	BATS chlorophyll-a
attribute	BATS_chla	long_name	String	Concentration Of Chlorophyll In Sea Water
attribute	BATS_chla	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	BATS_chla	units	String	ug/L
variable	BATS_POC		float
attribute	BATS_POC	_FillValue	float	NaN
attribute	BATS_POC	actual_range	float	3.53, 27.2
attribute	BATS_POC	bcodmo_name	String	POC
attribute	BATS_POC	description	String	BATS particulate organic carbon
attribute	BATS_POC	long_name	String	BATS POC
attribute	BATS_POC	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/
attribute	BATS_POC	units	String	mg/meters cubed

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.