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     data   graph     files  public Factory and field calibration data for float oxygen, beam transmission, backscatter,
chlorophyll fluorescence and CDOM sensors from the Sargasso Sea from 2013-2014.
   ?     I   M   background (external link) RSS 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 (external link)
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 Dr 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/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.2d 13 Jun 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
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 (external link)
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/ (external link)
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/ (external link)
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/ (external link)
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, color, concentration, concentration_of_chlorophyll_in_sea_water, data, dataset, depth, dissolved, dissolved o2, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, erddap, float, Float_bbp, Float_chla, Float_O2, Float_pressure, Float_profile, identifier, management, O2, ocean, ocean color, 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 The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/728371 (external link)
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 (external link)
attribute NC_GLOBAL people_0_affiliation String Skidmore College
attribute NC_GLOBAL people_0_person_name String Dr 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 Dr 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 Dr 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 Rapid, Autonomous Particle Flux Observations in the Oligotrophic Ocean
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 Hannah Ake
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
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 Factory and field calibration data for float oxygen, beam transmission, backscatter, chlorophyll fluorescence and CDOM sensors from the Sargasso Sea from 2013-2014.
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable Float_profile   String  
attribute Float_profile description String Deployment number
attribute Float_profile ioos_category String Unknown
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 description String Float pressure
attribute Float_pressure ioos_category String Pressure
attribute Float_pressure long_name String Float Pressure
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 description String Float dissolved oxygen concentration
attribute Float_O2 ioos_category String Dissolved O2
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 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 ioos_category String Ocean Color
attribute Float_chla long_name String Concentration Of Chlorophyll In Sea Water
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 description String Float particulate backscattering coefficient
attribute Float_bbp ioos_category String Unknown
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 description String BATS bottle ID number
attribute Bottle_ID ioos_category String Identifier
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 description String BATS nominal depth where sample was taken
attribute depth ioos_category String Location
attribute depth long_name String BATS Depth
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 description String BATS dissolved oxygen concentration
attribute BATS_O2 ioos_category String Dissolved O2
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 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 ioos_category String Ocean Color
attribute BATS_chla long_name String Concentration Of Chlorophyll In Sea Water
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 description String BATS particulate organic carbon
attribute BATS_POC ioos_category String Ocean Color
attribute BATS_POC long_name String BATS POC
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, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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