ERDDAP > info > bcodmo_dataset_728335

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	[Park phase data] - Float park phase data collected at depth in the Sargasso Sea from 2013- 2014. (Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_728335

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
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. A float firmware error early in the project prevented collection of upper water column data in some of the short-term deployments. This was remedied before long-term deployment of the floats commenced. The floats occasionally performed a reboot during ascent profiles. The affected profiles are missing data for some pressure bins. Colored dissolved organic matter data are not available for float F034 profiles from cruises B295 and B296 due to sensor malfunction. Park Data were acquired during the park phase at the target depth at a sampling rate of 15 minutes.
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	Park Phase Data M. Estapa and K. Buesseler, PIs Version 17 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	2018-02-26T20:19:34Z
attribute	NC_GLOBAL	date_modified	String	2018-09-19T20:02:21Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.734334
attribute	NC_GLOBAL	Easternmost_Easting	double	-61.3763
attribute	NC_GLOBAL	geospatial_lat_max	double	34.5731
attribute	NC_GLOBAL	geospatial_lat_min	double	28.4094
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-61.3763
attribute	NC_GLOBAL	geospatial_lon_min	double	-69.025
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/728335
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	728342
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	733225
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	Equipped on Sea-Bird Scientific Navis BGCi floats (numbers F033 and F034)
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	729419
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	Transmissometers
attribute	NC_GLOBAL	instruments_3_acronym	String	Dissolved Oxygen Sensor
attribute	NC_GLOBAL	instruments_3_dataset_instrument_description	String	Used to sample dissolved oxygen, Sea-Bird Scientific Navis BGCi floats (numbers F033 and F034)
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	728343
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	O2 optode
attribute	NC_GLOBAL	instruments_4_acronym	String	OBS
attribute	NC_GLOBAL	instruments_4_dataset_instrument_description	String	Used to measure backscatter
attribute	NC_GLOBAL	instruments_4_dataset_instrument_nid	String	733227
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	altimetry, azimuth, bbp, bbp700, bbp700_corr, bco, bco-dmo, beam, beam_c, biological, cal, cdom, chemical, chl, chl_cal, chl_corr, chlorophyll, chromophoric, colored, corr, counts, data, dataset, date, deployment, dissolved, dmo, erddap, float, float_id, laboratory, latitude, longitude, management, material, matter, num, O2, oceanography, office, optode, optode_temp, optode_therm_v, organic, oxy, oxy_phase, oxygen, oxygen_cal, phase, poc, POC_bbp, preliminary, pres, pressure, prof, prof_num, sal, satellite, temperature, therm, tilt, time, time2, trans, trans_counts, v
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/728335/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/728335
attribute	NC_GLOBAL	Northernmost_Northing	double	34.5731
attribute	NC_GLOBAL	param_mapping	String	{'728335': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/728335/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	Southernmost_Northing	double	28.4094
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. Particulate organic carbon flux derived from float-based optical sediment trap measurements was validated against fluxes measured directly with co-deployed, drifting neutrally-buoyant, sediment traps during a series of five short cruises before floats were deployed for approximately one year. The data returned by the floats comprise 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	title	String	[Park phase data] - Float park phase data collected at depth in the Sargasso Sea from 2013-2014. (Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean)
attribute	NC_GLOBAL	version	String	2
attribute	NC_GLOBAL	Westernmost_Easting	double	-69.025
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	deployment		String
attribute	deployment	bcodmo_name	String	deployno
attribute	deployment	description	String	For short-term deployments (1.5-3 days), the BATS cruise number from which the float was deployed. For long-term deployments, the serial number of the float (F033 or F034).
attribute	deployment	long_name	String	Deployment
attribute	deployment	units	String	unitless
variable	float_id		byte
attribute	float_id	_FillValue	byte	127
attribute	float_id	actual_range	byte	33, 34
attribute	float_id	bcodmo_name	String	inst_model
attribute	float_id	description	String	The serial number of the float (F033 or F034).
attribute	float_id	long_name	String	Float Id
attribute	float_id	units	String	unitless
variable	prof_num		short
attribute	prof_num	_FillValue	short	32767
attribute	prof_num	actual_range	short	1, 139
attribute	prof_num	bcodmo_name	String	float_cycle
attribute	prof_num	description	String	Number of float park cycle.
attribute	prof_num	long_name	String	Prof Num
attribute	prof_num	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	28.4094, 34.5731
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
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	-69.025, -61.3763
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
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	date		String
attribute	date	bcodmo_name	String	date
attribute	date	description	String	The UTC date of each 15-minute park phase observation; 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	source_name	String	date
attribute	date	time_precision	String	1970-01-01
attribute	date	units	String	unitless
variable	time2		double
attribute	time2	_FillValue	double	NaN
attribute	time2	actual_range	double	9.26E-5, 0.999965278
attribute	time2	bcodmo_name	String	time
attribute	time2	description	String	The UTC time of each 15-minute park phase observation; HH:MM
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	pres		float
attribute	pres	_FillValue	float	NaN
attribute	pres	actual_range	float	0.6, 1113.6
attribute	pres	bcodmo_name	String	pressure
attribute	pres	description	String	Pressure acquired with Sea-Bird Scientific SBE 41CP CTD. This is reported as the instrument output with the factory calibration applied.
attribute	pres	long_name	String	Pressure
attribute	pres	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/
attribute	pres	units	String	dbar
variable	temp		float
attribute	temp	_FillValue	float	NaN
attribute	temp	actual_range	float	5.974, 22.686
attribute	temp	bcodmo_name	String	temperature
attribute	temp	description	String	Temperature acquired with Sea-Bird Scientific SBE 41CP CTD. This is reported as the instrument output with the factory calibration applied.
attribute	temp	long_name	String	Temperature
attribute	temp	units	String	Celsius
variable	sal		float
attribute	sal	_FillValue	float	NaN
attribute	sal	actual_range	float	21.718, 36.652
attribute	sal	bcodmo_name	String	sal
attribute	sal	description	String	Salinity acquired with Sea-Bird Scientific SBE 41CP CTD. This is reported as the instrument output with the factory calibration applied.
attribute	sal	long_name	String	Sal
attribute	sal	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/
attribute	sal	units	String	PSU
variable	optode_therm_v		float
attribute	optode_therm_v	_FillValue	float	NaN
attribute	optode_therm_v	actual_range	float	0.59454, 1.00125
attribute	optode_therm_v	bcodmo_name	String	O2_v
attribute	optode_therm_v	description	String	Oxygen sensor thermistor raw voltage; Acquired with Sea-Bird Scientific SBE 63 Optical Dissolved Oxygen Sensor. This is the raw sensor output.
attribute	optode_therm_v	long_name	String	Optode Therm V
attribute	optode_therm_v	units	String	volts
variable	optode_temp		float
attribute	optode_temp	_FillValue	float	NaN
attribute	optode_temp	actual_range	float	5.973, 22.684
attribute	optode_temp	bcodmo_name	String	temperature
attribute	optode_temp	description	String	Temperature at dissolved oxygen sensor; Acquired with Sea-Bird Scientific SBE 63 Optical Dissolved Oxygen Sensor. Temperature at the dissolved oxygen sensor was calculated from the raw SBE 63 thermistor voltage by applying the factory calibration: L = ln (100000 * thermistor voltage / (3.3 - thermistor voltage)) Temperature [ deg C] = 1 / (TA0 + TA1*L + TA2*L2 + TA3*L3) - 273.15 See https://www.bco-dmo.org/dataset/728371 for calibration coefficients.
attribute	optode_temp	long_name	String	Optode Temp
attribute	optode_temp	units	String	Celsius
variable	oxy_phase		float
attribute	oxy_phase	_FillValue	float	NaN
attribute	oxy_phase	actual_range	float	16.335, 23.606
attribute	oxy_phase	bcodmo_name	String	unknown
attribute	oxy_phase	description	String	Oxygen sensor raw phase; Acquired with Sea-Bird Scientific SBE 63 Optical Dissolved Oxygen Sensor. This is the raw sensor output.
attribute	oxy_phase	long_name	String	Oxy Phase
attribute	oxy_phase	units	String	usec
variable	oxygen		float
attribute	oxygen	_FillValue	float	NaN
attribute	oxygen	actual_range	float	145.6, 244.73
attribute	oxygen	bcodmo_name	String	dissolved Oxygen
attribute	oxygen	description	String	Dissolved oxygen; Acquired with Sea-Bird Scientific SBE 63 Optical Dissolved Oxygen Sensor. Dissolved oxygen concentration [umol/kg] was calculated and corrected for salinity and pressure effects according to the 2016 Argo recommendations for processing of dissolved oxygen data (Thierry et al. 2016). As per these recommendations, an initial pressure correction was made to the raw measured oxygen phase delay Phi [usec] according to Bittig et al. 2015:                   Phi adj = Phi raw + Pcoef1 * P / 1000 where Pcoef1 = 0.115 usec and P [dbar] is the collocated SBE 41CP CTD pressure measurement. The adjusted oxygen phase delay [usec] was then converted to voltage by applying the factory conversion:                   V = Phiadj / 39.457071 Uncorrected dissolved oxygen concentration [mL/L] was calculated by applying the factory calibration:                   Oxygen_uncorr [mL/L] = {(A0 + A1*T + A2*V2) / (B0 + B1*V) - 1.0} / (C0 + C1*T + C2*T2) where T is SBE 63 temperature [deg C] and V is adjusted SBE 63 phase delay [V]. The oxygen calibration coefficients (A0, A1, A2, B0, B1, C0, C1, C2) are provided in Table 1. Dissolved oxygen concentration [mL/L] was then corrected for salinity and pressure effects according to the 2016 Argo recommendations.                   Oxygen_corr [mL/L] = Oxygenun corr [mL/L] * Scorr * Pcorr where                   Scorr = A(T,S,Spreset) * exp(S*(SolB0 + SolB1*Ts + SolB2*Ts2 + SolB3*Ts3) + SolC0*S2)                   A(T,S,Spreset) = (1013.25 - pH2O(T,Spreset)) / (1013.25 - pH2O(T,S))                   pH2O = 1013.25 * exp(D0 + D1*(100 / (T + 273.15)) + D2*ln((T + 273.15) / 100) + D3*S)                   Spreset = 0                   TS = ln [(298.15 - T) / (273.15 + T)] T and S are the collocated temperature and salinity measurements from the SBE 41CP CTD, respectively. Salinity correction coefficients are from Benson and Krause 1984 (SolB0 = -6.24523e-3, SolB1 = -7.37614e-3, SolB2 = -1.03410e-3, SolB3 = -8.17083e-3, SolC0 = -4.88682e-7) and pH2O coefficients are from Weiss and Price 1980 (D0 = 24.4543, D1 = -67.4509, D2 = -4.8489, D3 = -5.44e-4). The pressure correction factor Pcorr is calculated as outlined in Bittig et al. 2015 as                   Pcorr = 1 + (Pcoef2 * T + Pcoef3) * P / 1000 with Pcoef2 = 0.00022 and Pcoef3 = 0.0419. Dissolved oxygen concentration [mL/L] was converted to dissolved oxygen concentration [umol/kg]:                   Oxygen [umol/kg] = Oxygen [mL/L] * (44.6596 umol/mL) / (ρTheta/1000) where ρθ is the potential density of seawater [kg/m3] at zero pressure and the potential temperature calculated from collocated SBE 41CP CTD salinity, temperature, and pressure measurements using the pden function in the SEAWATER Matlab library (Morgan and Pender 1993). The value of 44.6596 umol/mL is derived from the molar volume of oxygen gas at standard temperature and pressure, 22.3916 L/mole (e.g., García and Gordon 1992). See https://www.bco-dmo.org/dataset/728371 for calibration coefficients.
attribute	oxygen	long_name	String	Oxygen
attribute	oxygen	units	String	umol/kg
variable	oxygen_cal		float
attribute	oxygen_cal	_FillValue	float	NaN
attribute	oxygen_cal	actual_range	float	143.42, 245.83
attribute	oxygen_cal	bcodmo_name	String	dissolved Oxygen
attribute	oxygen_cal	description	String	Calibrated dissolved oxygen; The dissolved oxygen concentrations calculated above were corrected to dissolved oxygen concentrations measured by Winkler titration of bottle samples collected during concurrent Bermuda Atlantic Time-series Study cruises (available at https://www.bco-dmo.org/project/2124 or http://bats.bios.edu). Linear regression yields the relationship:  oxygen_cal [umol/kg] = oxygen [umol/kg] * 1.0331 – 6.9976; R2 = 0.97.  See https://www.bco-dmo.org/dataset/728371 for bottle calibration data.
attribute	oxygen_cal	long_name	String	Oxygen Cal
attribute	oxygen_cal	units	String	umol/kg
variable	chl		float
attribute	chl	_FillValue	float	NaN
attribute	chl	actual_range	float	-0.0199, 1.8106
attribute	chl	bcodmo_name	String	chlorophyll a
attribute	chl	description	String	Chlorophyll-a; Acquired with WET Labs MCOMS Chlorophyll Fluorometer (excitation 470 nm/emission 695 nm). A dark offset was subtracted from the raw sensor counts and the result was multiplied by a factory-determined scale factor to obtain fluorometric chlorophyll-a concentration [ug/L]. The dark offset was computed separately for each sensor as the mean of the deep-water minima measured during all profiles between July and September 2013 at BATS (https://www.bco-dmo.org/dataset/728371). Chl [ug/L] = Scale Factor * (Output - Dark Counts)
attribute	chl	long_name	String	CHL
attribute	chl	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	chl	units	String	ug/L
variable	chl_corr		float
attribute	chl_corr	_FillValue	float	NaN
attribute	chl_corr	actual_range	float	-0.0255, 1.8047
attribute	chl_corr	bcodmo_name	String	chlorophyll a
attribute	chl_corr	description	String	Corrected chlorophyll-a; The fluorometric chlorophyll-a values derived above were further corrected by removing the deep-water dependence of chlorophyll fluorescence on fluorescent colored dissolved organic matter (CDOM; see below) and a small residual deep-water sensor offset. The method of Xing et al. (2017) was applied. Briefly chlorophyll fluorescence in deep water was assumed to originate entirely from a combination of the above factors the dependence of the measured chlorophyll fluorescence on CDOM was determined through linear regression and the regression parameters were used to correct the entire chlorophyll profile. Profiles shallower than 200 m were corrected using the regression parameters of the subsequent float profile.
attribute	chl_corr	long_name	String	Chl Corr
attribute	chl_corr	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	chl_corr	units	String	ug/L
variable	chl_cal		float
attribute	chl_cal	_FillValue	float	NaN
attribute	chl_cal	actual_range	float	-0.0057, 0.8647
attribute	chl_cal	bcodmo_name	String	chlorophyll a
attribute	chl_cal	description	String	Calibrated chlorophyll-a; Corrected fluorometric chlorophyll-a concentrations (chl_corr derived above) were calibrated to chlorophyll-a concentrations measured by HPLC of bottle samples collected during concurrent Bermuda Atlantic Time-series Study cruises (available at https://www.bco-dmo.org/project/2124 or http://bats.bios.edu). Linear regression yields the relationship: chl_cal [µ=ug/L] = chl [ug/L] * 0.4756 + 0.0064; R2 = 0.92. See https://www.bco-dmo.org/dataset/728371 for bottle calibration data.
attribute	chl_cal	long_name	String	Chl Cal
attribute	chl_cal	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	chl_cal	units	String	ug/L
variable	bbp700		float
attribute	bbp700	_FillValue	float	NaN
attribute	bbp700	actual_range	float	-2.22E-4, 0.052367
attribute	bbp700	bcodmo_name	String	bbp700
attribute	bbp700	description	String	Particulate backscattering coefficient bbp (700nm); Acquired with WET Labs MCOMS Scattering Meter with 700-nm wavelength and in-water centroid angle of 150 deg. See Table 3 in paper. The particulate volume scattering coefficient βp was calculated as                 βp(150 deg,700 nm) [m-1 sr-1] = Scale Factor * (Output – Dark Counts) using a factory-determined scale factor and a dark offset, computed separately for each sensor as the mean of the deep-water minima measured during all profiles between July and September 2013 at BATS (https://www.bco-dmo.org/dataset/728371). Particulate backscattering coefficient, bbp(λ) [m-1], is estimated as                 bbp = 2πχβp(150 deg)                 χ = 1.13 for 150 deg (from Boss and Pegau 2001).
attribute	bbp700	long_name	String	BBP700
attribute	bbp700	units	String	m -1
variable	bbp700_corr		float
attribute	bbp700_corr	_FillValue	float	NaN
attribute	bbp700_corr	actual_range	float	-1.8E-5, 0.052572
attribute	bbp700_corr	bcodmo_name	String	bbp700
attribute	bbp700_corr	description	String	Corrected particulate backscattering coefficient bbp (700nm); Depth profiles of particulate backscattering coefficient bbp(700 nm) were despiked using a running median filter (Briggs et al. 2011). Due to the size of the median filter window the initial and final six data points in each profile could not be despiked and appear as NaN. Park phase bbp(700 nm) data were not despiked because they were collected at a nominally constant depth. Despiked profile phase bbp(700 nm) and raw park phase bbp(700 nm) were further corrected by a float-specific deep-water offset. The minimum bbp(700 nm) measured during the long-term deployments was determined for each float (-2.0488e-04 m-1 for F033; -1.1139e-04 m-1 for F034) and subtracted from the bbp(700 nm) values derived above.
attribute	bbp700_corr	long_name	String	Bbp700 Corr
attribute	bbp700_corr	units	String	m -1
variable	POC_bbp		double
attribute	POC_bbp	_FillValue	double	NaN
attribute	POC_bbp	actual_range	double	-0.2657, 1683.6505
attribute	POC_bbp	bcodmo_name	String	POC
attribute	POC_bbp	description	String	Particulate organic carbon derived from bbp (700 nm); The relationship between corrected bbp(700 nm) measured by the float backscatter sensor (bbp700_corr derived above) and POC concentrations measured in bottle samples collected during concurrent Bermuda Atlantic Time-series Study cruises (available at https://www.bco-dmo.org/project/2124 or http://bats.bios.edu) was utilized to predict POC concentration from corrected bbp(700 nm) for all float samples. Linear regression yields the relationship: POC [mg/m3] = bbp(700 nm) [m-1] * 32020.0874 + 0.2973; R2 = 0.86. See https://www.bco-dmo.org/dataset/728371 for bottle calibration data.
attribute	POC_bbp	long_name	String	POC Bbp
attribute	POC_bbp	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/
attribute	POC_bbp	units	String	mg/meters cubed
variable	cdom		float
attribute	cdom	_FillValue	float	NaN
attribute	cdom	actual_range	float	-0.4362, 1.8625
attribute	cdom	bcodmo_name	String	CDOM
attribute	cdom	description	String	Colored dissolved organic matter; Acquired with WET Labs MCOMS CDOM Fluorometer (excitation 370 nm/emission 460 nm). A dark offset was subtracted from the raw sensor counts and the result was multiplied by a factory-determined scale factor to obtain colored dissolved organic matter concentration [ppb]. The dark offset was computed separately for each sensor as the mean of the surface minima (0 – 20 dbar) measured during all profiles between July and September 2013 at BATS (https://www.bco-dmo.org/dataset/728371).
attribute	cdom	long_name	String	Chromophoric Dissolved Organic Material
attribute	cdom	units	String	ppb
variable	trans_counts		short
attribute	trans_counts	_FillValue	short	32767
attribute	trans_counts	actual_range	short	6590, 15664
attribute	trans_counts	bcodmo_name	String	count
attribute	trans_counts	description	String	Transmissometer raw counts; Acquired with WET Labs c-ROVER 2000 transmissometer with 650-nm wavelength and 0.25-m pathlength. This is reported as the raw sensor output in counts.
attribute	trans_counts	long_name	String	Trans Counts
attribute	trans_counts	units	String	count
variable	beam_c		float
attribute	beam_c	_FillValue	float	NaN
attribute	beam_c	actual_range	float	-0.0113, 3.3804
attribute	beam_c	bcodmo_name	String	beam_cp
attribute	beam_c	description	String	Uncorrected particulate beam attenuation coefficient cp (650 nm); Acquired with WET Labs c-ROVER 2000 transmissometer with 650-nm wavelength and 0.25-m pathlength. Transmittance is calculated as:                 Transmittance = (Signal - Dark) / (Cal Signal - Dark)                 Signal = raw output in counts                 Dark = counts with beam blocked, factory supplied                 Cal Signal = counts with Milli-Q water in sensor path, acquired prior to deployment (https://www.bco-dmo.org/dataset/728371) The beam attenuation coefficient is calculated as:                 cp,uncorr(650 nm) = -ln (transmittance) / pathlength [m] No correction for drift of the sensor over time (for instance, due to bio-fouling, see Estapa et al. 2013) has been applied.
attribute	beam_c	long_name	String	Beam C
attribute	beam_c	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ATTNZZ01/
attribute	beam_c	units	String	m -1
variable	tilt		float
attribute	tilt	_FillValue	float	NaN
attribute	tilt	actual_range	float	0.1, 9.4
attribute	tilt	bcodmo_name	String	unknown
attribute	tilt	description	String	The maximum tilt value recorded during each sampling interval.
attribute	tilt	long_name	String	Tilt
attribute	tilt	units	String	degrees
variable	azimuth		short
attribute	azimuth	_FillValue	short	32767
attribute	azimuth	actual_range	short	0, 360
attribute	azimuth	bcodmo_name	String	azimuth
attribute	azimuth	description	String	The uncalibrated compass heading of the float.
attribute	azimuth	long_name	String	Azimuth
attribute	azimuth	units	String	degrees

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