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     data   graph     files  public [Total Organic Sulfur] - Total organic sulfur (TOS) collected from Niskin bottle samples on R/
V Knorr cruise KN210-04 in the Western Atlantic Ocean between Uruguay and Barbados from March
to May 2013 (Deep Atlantic DOM project) (Dissolved Organic Matter Composition in the Deep
Atlantic Ocean)
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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 Whole seawater samples for obtaining the concentration of total organic sulfur
(TOS) were collected directly from the Niskin bottles into combusted 40 mL
glass vials. The vials were stored frozen (-20\u00b0C) until analysis on land.

TOS was determined as described in Cutter et al. In brief, a sample is pumped
through three ion exchange cartridges connected in series, a 1 mL Ba (Dionex
OnGuard II #057093) to remove most of the sulfate, then through a 2.5 mL Ag
(Dionex OnGuard II Ag #057090) to remove chloride, and finally through a 1 mL
cartridge packed with BioRad AG 4x4 resin (#143-3341) to remove the remaining
sulfate. The resulting sample is then analyzed via ion chromatography to
quantify remaining sulfate. Total sulfur is quantitatively converted to H2S by
via reductive pyrolysis in pure hydrogen gas and quantified by gas
chromatography/flame photometric detection using the trapping /detection
system of Radford-Knoery and Cutter. Total organic sulfur is calculated as the
difference between total sulfur and residual sulfate. Each step of this
analysis has an error attached. The units for TOS are nM; when
provided,\u00a0TOS_sd is the standard deviation of the average for replicate
samples. Precision was >10% RSD at/above 200 nM S and the detection limit was
26 nM S.
attribute NC_GLOBAL awards_0_award_nid String 54954
attribute NC_GLOBAL awards_0_award_number String OCE-1154320
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1154320 (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 Donald L. Rice
attribute NC_GLOBAL awards_0_program_manager_nid String 51467
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Total Organic Sulfur
R/V Knorr KN210-04
PI: Elizabeth Kujawinski (WHOI)
Co-PI: Krista Longnecker (WHOI)
Version date: 04 September 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 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2018-09-04T21:13:03Z
attribute NC_GLOBAL date_modified String 2019-03-15T18:07:29Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.745536.1
attribute NC_GLOBAL Easternmost_Easting double -28.502444
attribute NC_GLOBAL geospatial_lat_max double 9.700333
attribute NC_GLOBAL geospatial_lat_min double -37.998253
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -28.502444
attribute NC_GLOBAL geospatial_lon_min double -55.29925
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 5108.562
attribute NC_GLOBAL geospatial_vertical_min double 5.724
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/745536 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Niskin bottle
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Whole seawater samples for obtaining the concentration of total organic sulfur (TOS) were collected directly from the Niskin bottles into combusted 40 mL glass vials.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 745548
attribute NC_GLOBAL instruments_0_description String A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Niskin bottle
attribute NC_GLOBAL instruments_0_instrument_nid String 413
attribute NC_GLOBAL instruments_0_supplied_name String Niskin bottle
attribute NC_GLOBAL instruments_1_acronym String Ion Chromatograph
attribute NC_GLOBAL instruments_1_dataset_instrument_description String In brief, a sample is pumped through three ion exchange cartridges connected in series, a 1 mL Ba (Dionex OnGuard II #057093) to remove most of the sulfate, then through a 2.5 mL Ag (Dionex OnGuard II Ag #057090) to remove chloride, and finally through a 1 mL cartridge packed with BioRad AG 4x4 resin (#143-3341) to remove the remaining sulfate. The resulting sample is then analyzed via ion chromatography to quantify remaining sulfate.
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 745550
attribute NC_GLOBAL instruments_1_description String Ion chromatography is a form of liquid chromatography that measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size. Ion chromatographs are able to measure concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium in the parts-per-billion (ppb) range. (from http://serc.carleton.edu/microbelife/research_methods/biogeochemical/ic.html)
attribute NC_GLOBAL instruments_1_instrument_name String Ion Chromatograph
attribute NC_GLOBAL instruments_1_instrument_nid String 662
attribute NC_GLOBAL instruments_1_supplied_name String ion chromatography
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, cast, chemical, data, dataset, date, date_utc_YYYYMMDD_start, depth, depth_m, dmo, erddap, event, event_start, hhmm, latitude, longitude, management, oceanography, office, preliminary, start, station, time, time_utc_HHMM_start, tos, TOS_nM, TOS_sd, yyyymmdd
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/745536/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/745536 (external link)
attribute NC_GLOBAL Northernmost_Northing double 9.700333
attribute NC_GLOBAL param_mapping String {'745536': {'lon_start': 'flag - longitude', 'depth_m': 'flag - depth', 'lat_start': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/745536/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_0_affiliation_acronym String WHOI
attribute NC_GLOBAL people_0_person_name String Elizabeth Kujawinski
attribute NC_GLOBAL people_0_person_nid String 51089
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 Krista Longnecker
attribute NC_GLOBAL people_1_person_nid String 51483
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
attribute NC_GLOBAL people_2_person_name String Krista Longnecker
attribute NC_GLOBAL people_2_person_nid String 51483
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 Shannon Rauch
attribute NC_GLOBAL people_3_person_nid String 51498
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 Deep Atlantic DOM
attribute NC_GLOBAL projects_0_acronym String Deep Atlantic DOM
attribute NC_GLOBAL projects_0_description String Transformations of dissolved organic matter (DOM) in the deep ocean have profound impacts on the global carbon cycle due to the sequestration of carbon dioxide (CO2) away from the atmosphere. Although research has been conducted on the high molecular weight component of this material, the same cannot be said for low molecular weight DOM because the needed analytical techniques have not been available to determine its composition and reactivity.
In recent years, a research team at Woods Hole Oceanographic Institution has acquired the necessary analytical capability. As such, in this project, they will carry out the first systematic survey of deep ocean DOM in the western Atlantic Ocean to characterize the low molecular weight fraction of DOM in southward flowing North Atlantic Deep Water (NADW), northward flowing Antarctic Bottom Water (AABW), and Antarctic Intermediate Water (AAIW). Using ultrahigh resolution mass spectrometry and multi-stage fragmentation coupled to liquid chromatography, the scientists will determine the spatial variability in the composition of DOM along the flow path of the water masses, as well as assess the source water, transport, and surface processes that contribute to temporal changes in DOM composition. These results will be augmented with structural elucidation and quantitative assays of unique marker compounds for each water mass. Results will provide important insights into the biogeochemical reactions that govern DOM dynamics in the deep ocean.
attribute NC_GLOBAL projects_0_end_date String 2015-01
attribute NC_GLOBAL projects_0_geolocation String Western Atlantic Ocean
attribute NC_GLOBAL projects_0_name String Dissolved Organic Matter Composition in the Deep Atlantic Ocean
attribute NC_GLOBAL projects_0_project_nid String 2204
attribute NC_GLOBAL projects_0_start_date String 2012-02
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 -37.998253
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String This dataset contains the concentration of total organic sulfur (TOS) in seawater from samples collected during the R/V Knorr cruise KN210-04 between 29 Mar 2013 and 06 May 2013 along the eastern coast of South America.
attribute NC_GLOBAL title String [Total Organic Sulfur] - Total organic sulfur (TOS) collected from Niskin bottle samples on R/V Knorr cruise KN210-04 in the Western Atlantic Ocean between Uruguay and Barbados from March to May 2013 (Deep Atlantic DOM project) (Dissolved Organic Matter Composition in the Deep Atlantic Ocean)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -55.29925
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable cast   byte  
attribute cast _FillValue byte 127
attribute cast actual_range byte 2, 68
attribute cast bcodmo_name String cast
attribute cast description String cast number
attribute cast long_name String Cast
attribute cast units String unitless
variable station   byte  
attribute station _FillValue byte 127
attribute station actual_range byte 2, 23
attribute station bcodmo_name String station
attribute station description String station number
attribute station long_name String Station
attribute station units String unitless
variable date_utc_YYYYMMDD_start   int  
attribute date_utc_YYYYMMDD_start _FillValue int 2147483647
attribute date_utc_YYYYMMDD_start actual_range int 20130327, 20130504
attribute date_utc_YYYYMMDD_start bcodmo_name String date
attribute date_utc_YYYYMMDD_start description String date, UTC, given as year – month – day
attribute date_utc_YYYYMMDD_start long_name String Date Utc YYYYMMDD Start
attribute date_utc_YYYYMMDD_start nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date_utc_YYYYMMDD_start units String unitless
variable time_utc_HHMM_start   short  
attribute time_utc_HHMM_start _FillValue short 32767
attribute time_utc_HHMM_start actual_range short 334, 2317
attribute time_utc_HHMM_start bcodmo_name String time
attribute time_utc_HHMM_start description String time, UTC, given as hour – minute
attribute time_utc_HHMM_start long_name String Time Utc HHMM Start
attribute time_utc_HHMM_start nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time_utc_HHMM_start units String unitless
variable event_start   String  
attribute event_start bcodmo_name String event
attribute event_start description String the event number from the ELOG maintained during the cruise
attribute event_start long_name String Event Start
attribute event_start nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute event_start 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 5.724, 5108.562
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String depth in meters
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -37.998253, 9.700333
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/ (external link)
attribute latitude source_name String lat_start
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 -55.29925, -28.502444
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/ (external link)
attribute longitude source_name String lon_start
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable TOS_nM   double  
attribute TOS_nM _FillValue double NaN
attribute TOS_nM actual_range double 43.8006994318009, 1275.09413111938
attribute TOS_nM bcodmo_name String S
attribute TOS_nM description String total organic sulfur, in nM
attribute TOS_nM long_name String TOS N M
attribute TOS_nM units String nanomolar (nM)
variable TOS_sd   double  
attribute TOS_sd _FillValue double NaN
attribute TOS_sd actual_range double 8.90314481756031, 118.726847258504
attribute TOS_sd bcodmo_name String S
attribute TOS_sd colorBarMaximum double 50.0
attribute TOS_sd colorBarMinimum double 0.0
attribute TOS_sd description String standard deviation for total organic sulfur, from averages of replicates where available
attribute TOS_sd long_name String TOS Sd
attribute TOS_sd units String nanomolar (nM)

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.


 
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