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   set  data   graph     files  public Dissolved lead data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic,
Labrador Sea (section GA01) during 2014
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_651880

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 Sample storage bottle lids and threads were soaked overnight in 2N reagent
grade HCl, then filled with 1N reagent grade HCl to be heated in an oven at 60
degrees celcius\u00a0overnight, inverted, heated for a second day, and rinsed
5X with pure distilled water.\u00a0 The bottles were then filled with trace
metal clean dilute HCl (0.01N HCl) and again heated in the oven for one day on
either end.\u00a0 Clean sample bottles were emptied, and double-bagged prior
to rinsing and filling with sample.

As stated in the cruise report, trace metal clean seawater samples were
collected using the French GEOTRACES clean rosette (General Oceanics Inc.
Model 1018 Intelligent Rosette), equipped with twenty-two new 12L GO-FLO
bottles (two bottles were leaking and were never deployed during the cruise).
The 22 new GO-FLO bottles were initially cleaned in LEMAR laboratory following
the GEOTRACES procedures (Cutter and Bruland, 2012). The rosette was deployed
on a 6mm Kevlar cable with a dedicated custom designed clean winch.
Immediately after recovery, GO-FLO bottles were individually covered at each
end with plastic bags to minimize contamination. They were then transferred
into a clean container (class-100) for sampling. On each trace metal cast,
nutrient and/or salinity samples were taken to check potential leakage of the
Go-Flo bottles. Prior to filtration, GO-FLO bottles were mixed manually three
times. GO-FLO bottles were pressurized to less than\u00a08 psi with 0.2-um
filtered N2\u00a0(Air Liquide). For Stations 1, 11, 15, 17, 19, 21, 25, 26,
29, 32 GO-FLO spigots were fitted with an acid-cleaned piece of Bev-a-Line
tubing that fed into a 0.2 um capsule filters (SARTOBRAN\u00a0300, Sartorius).
For all other stations (13, 34, 36, 38, 40, 42, 44, 49, 60, 64, 68, 69, 71,
77) seawater was filtered directly through paired filters (Pall Gelman Supor
0.45um polystersulfone, and Millipore mixed ester cellulose MF 5 um) mounted
in Swinnex polypropylene filter holders, following the Planquette and Sherrell
(2012) method. Filters were cleaned following the protocol described in
Planquette and Sherrell (2012) and kept in acid-cleaned 1L LDPE bottles
(Nalgene) filled with ultrapure water (Milli-Q, 18.2 megaohm/cm) until use.
Subsamples were taken into acid-cleaned (see above) Nalgene HDPE bottles after
a triple rinse with the sample. All samples were acidified back in the Boyle
laboratory at 2mL per liter seawater (pH 2) with trace metal clean 6N HCl.

On this cruise, only the particulate samples were assigned GEOTRACES numbers.
In this dataset, the dissolved Pb samples collected at the same depth
(sometimes on a different cast) as the particulate samples have been assigned
identifiers as \u201cSAMPNO\u201d which corresponds to the particulate
GEOTRACES number. In cases where there were no corresponding particulate
samples, a number was generated as \u201cPI_SAMPNO\u201d.

Upon examining the data, we observed that the sample taken from rosette
position 1 (usually the near-bottom sample) was always higher in [Pb] than the
sample taken immediately above that, and that the excess decreased as the
cruise proceeded. The Pb isotope ratio of these samples were higher than the
comparison bottles as well. A similar situation was seen for the sample taken
from rosette positions 5, 20 and 21 when compared to the depth-interpolated
[Pb] from the samples immediately above and below. Also, at two stations where
our near-bottom sample was taken from rosette position 2, there was no [Pb]
excess over the samples immediately above. We believe that this evidence
points to sampler-induced contamination that was being slowly washed out
during the cruise, but never completely. So we have flagged all of these
analyses with a \u201c3\u201d indicating that we do not believe that these
samples should be trusted as reflecting the true ocean [Pb].

In addition, we observed high [Pb] in the samples at Station 1 and very
scattered Pb isotope ratios. The majority of these concentrations were far in
excess of those values observed at nearby Station 11, and also the nearby
USGT10-01. Discussion among other cruise participants revealed similarly
anomalous data for other trace metals (e.g., Hg species). After discussion at
the 2016 GEOVIDE Workshop, we came to the conclusion that this is*- evidence
of GoFlo bottles not having sufficient time to \u201cclean up\u201d prior to
use, and that most or all bottles from Station 1 were contaminated. We flagged
all Station 1 data with a \u201c3\u201d indicating that we do not believe
these values reflect the true ocean [Pb].

Samples were analyzed at least 1 month after acidification over 36 analytical
sessions by a resin pre-concentration method. This method utilized the
isotope-dilution ICP-MS method described in Lee et al. 2011, which includes
pre-concentration on nitrilotriacetate (NTA) resin and analysis on a Fisons
PQ2+ using a 400uL/min nebulizer. Briefly, samples were poured into 30mL
subsample bottles. Then, triplicate 1.5mL polypropylene vials (Nalgene) were
rinsed three times with the 30mL subsample.\u00a0 Each sample was pipetted
(1.3mL) from the 30mL subsample to the 1.5mL vial.\u00a0 Pipettes were
calibrated daily to the desired volume.\u00a0 25 ul of a 204Pb spike were
added to each sample, and the pH was raised to 5.3 using a trace metal clean
ammonium acetate buffer, prepared at a pH of between 7.95 and 7.98.\u00a0 2400
beads of NTA Superflow resin (Qiagen Inc., Valencia, CA) were added to the
mixture, and the vials were set to shake on a shaker for 3 \u2013 6 days to
allow the sample to equilibrate with the resin.\u00a0 After equilibration, the
beads were centrifuged and washed 3 times with pure distilled water, using a
trace metal clean siphon tip to remove the water wash from the sample vial
following centrifugation.\u00a0 After the last wash, 350\u03bcl of a 0.1N
solution of trace metal clean HNO3 was added to the resin to elute the metals,
and the samples were set to shake on a shaker for 1 \u2013 2 days prior to
analysis by ICP-MS.

NTA Superflow resin was cleaned by batch rinsing with 0.1N trace metal clean
HCl for a few hours, followed by multiple washes until the pH of the solution
was above 4.\u00a0 Resin was stored at 4 degrees celcius\u00a0in the dark
until use, though it was allowed to equilibrate to room temperature prior to
the addition to the sample.

Nalgene polypropylene (PPCO) vials were cleaned by heated submersion for 2
days at 60 degrees celcius\u00a0in 1N reagent grade HCl, followed by a bulk
rinse and 4X individual rinse of each vial with pure distilled water. Each
vial was then filled with trace metal clean dilute HCl (0.01N HCl) and heated
in the oven at 60 degrees celcius\u00a0for one day on either end.\u00a0 Vials
were kept filled until just before usage.

On each day of sample analysis, procedure blanks were determined. Replicates
(12) of 300uL of an in-house standard reference material seawater (low Pb
surface water) were used, where the amount of Pb in the 300uL was verified as
negligible. The procedural blank over the relevant sessions for resin
preconcentration method ranged from 2.2 \u2013 9.9pmol/kg, averaging 4.6
+/-\u00a01.7pmol/kg. Within a day, procedure blanks were very reproducible
with an average standard deviation of 0.7pmol/kg, resulting in detection
limits (3x this standard deviation) of 2.1pmol/kg. Replicate analyses of three
different large-volume seawater samples (one with 11pmol/kg, another with
24pmol/kg, and a third with 38pmol/kg) indicated that the precision of the
analysis is 4% or 1.6pmol/kg, whichever is larger.

Triplicate analyses of an international reference standard gave SAFe D2: 27.2
+/-\u00a01.7 pmol/kg. However, this standard run was linked into our own long-
term quality control standards that are run on every analytical day to
maintain long-term consistency. \u00a0

For the most part, the reported numbers are simply as calculated from the
isotope dilution equation on the day of the analysis. For some analytical
days, however, quality control samples indicated offsets in the blank used to
correct the samples. For the upper 5 depths of Station 29, all depths of
Station 40, and the deepest 2 depths of Station 42, the quality control
samples indicated our blank was overcorrecting by 3.4pM, and we applied a
-3.4pM correction to our Pb concentrations for that day. For the deepest 11
depths of Station 34, the quality control samples indicated our blank was
overcorrecting by 10.2pM (due to contamination of the low trace metal seawater
stock), and we applied a -10.2 pM correction to our Pb concentrations for that
day. With these corrections, the overall internal comparability of the Pb
collection should be better than 4%.

The errors associated with these Pb concentration measurements are on average
3.2% of the concentration (0.1 \u2013 4.4pmol/kg). Although there was a formal
crossover station (1) that overlaps with USGT10-01 (GA-03), sample quality on
the first station of GEOVIDE appears problematical making the comparison
unhelpful. However, GEOVIDE station 11 (40.33 degrees North, 12.22
degrees\u00a0West) is not too far from USGT10-01 (38.325 degrees\u00a0North,
9.66 degrees\u00a0West) and makes for a reasonable comparison. It should also
be noted that the MIT lab has intercalibrated Pb with other labs on the 2008
IC1 cruise, on the 2011 USGT11 (GA-03) cruise, and on the EPZT (GP-16)
cruises, and maintains in-lab quality control standards for long-term data
quality evaluation.

Ten percent of the samples were analyzed by Rick Kayser and the remaining
ninety percent of the samples were analyzed by Cheryl Zurbrick. There was no
significant difference between them for the lowest concentration large-volume
seawater reference sample (RK averaged 11.0 +/-\u00a01.6 pmol/kg; CZ averaged
11.6 +/-\u00a01.6 pmol/kg).
attribute NC_GLOBAL awards_0_award_nid String 651714
attribute NC_GLOBAL awards_0_award_number String OCE-1357224
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1357224 (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 Dissolved Pb
E. Boyle and C. Zubrick, PIs
Version 3 October 2017
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 2016-07-15T13:45:22Z
attribute NC_GLOBAL date_modified String 2019-06-11T14:27:07Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.651880.1
attribute NC_GLOBAL Easternmost_Easting double -10.036
attribute NC_GLOBAL geospatial_lat_max double 59.79927
attribute NC_GLOBAL geospatial_lat_min double 40.33325
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -10.036
attribute NC_GLOBAL geospatial_lon_min double -51.09588
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/651880 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String ICP Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Inductively Coupled Plasma Mass Spectrometer
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 652123
attribute NC_GLOBAL instruments_0_description String An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB15/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Inductively Coupled Plasma Mass Spectrometer
attribute NC_GLOBAL instruments_0_instrument_nid String 530
attribute NC_GLOBAL instruments_0_supplied_name String ICP-MS
attribute NC_GLOBAL instruments_1_acronym String Bottle
attribute NC_GLOBAL instruments_1_dataset_instrument_description String The General Oceanics Inc Model 1018 Intelligent Rosette was equipped with 22 new 12L GO-FLO bottles.
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 651959
attribute NC_GLOBAL instruments_1_description String A container, typically made of glass or plastic and with a narrow neck, used for storing drinks or other liquids.
attribute NC_GLOBAL instruments_1_instrument_name String Bottle
attribute NC_GLOBAL instruments_1_instrument_nid String 542498
attribute NC_GLOBAL instruments_1_supplied_name String 12L GO-FLO
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, bottle, btl, BTL_DATE, BTL_LAT, BTL_LON, btlnbr, castno, chemical, conc, cruise, cruise_id, ctdprs, data, dataset, date, dmo, erddap, flag, identifier, management, nbr, NBR_OF_SAMPLES, oceanography, office, Pb_D_CONC_BOTTLE, Pb_D_CONC_BOTTLE_FLAG, Pb_D_CONC_BOTTLE_SD, PI_SAMPNO, preliminary, quality, samples, sampno, sect, SECT_ID, statistics, stnnbr, time
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/651880 (external link)
attribute NC_GLOBAL Northernmost_Northing double 59.79927
attribute NC_GLOBAL param_mapping String {'651880': {'BTL_LON': 'flag - longitude', 'CTDPRS': 'flag - depth', 'BTL_LAT': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/651880/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Massachusetts Institute of Technology
attribute NC_GLOBAL people_0_affiliation_acronym String MIT-EAPS
attribute NC_GLOBAL people_0_person_name String Edward A. Boyle
attribute NC_GLOBAL people_0_person_nid String 50984
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 Massachusetts Institute of Technology
attribute NC_GLOBAL people_1_affiliation_acronym String MIT
attribute NC_GLOBAL people_1_person_name String Rick Kayser
attribute NC_GLOBAL people_1_person_nid String 651719
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 Massachusetts Institute of Technology
attribute NC_GLOBAL people_2_affiliation_acronym String MIT-EAPS
attribute NC_GLOBAL people_2_person_name String Dr Cheryl Zurbrick
attribute NC_GLOBAL people_2_person_nid String 644617
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Massachusetts Institute of Technology
attribute NC_GLOBAL people_3_affiliation_acronym String MIT-EAPS
attribute NC_GLOBAL people_3_person_name String Edward A. Boyle
attribute NC_GLOBAL people_3_person_nid String 50984
attribute NC_GLOBAL people_3_role String Contact
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Hannah Ake
attribute NC_GLOBAL people_4_person_nid String 650173
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String Filling Gaps in the Atlantic and Pacific Pb and Pb Isotope Spatial and Temporal Evolution
attribute NC_GLOBAL projects_0_acronym String GEOVIDE_Pb
attribute NC_GLOBAL projects_0_description String Lead is a trace metal that has historically been emitted into the atmosphere through human activities such as coal burning and the use of leaded gasoline followed by deposition into the ocean. Once introduced into the marine environment, lead is dispersed via currents and removed by biota and other sinking particles. This century-scale growth of lead emissions followed by a decline upon the phase-out of leaded gasoline is one of the great global geochemical experiments. In this study, researchers at the Massachusetts Institute of Technology will analyze archived seawater samples to improve our knowledge on the spatial and temporal variability of lead concentrations and lead isotope ratios. This data will yield new insights into the sources and transport of lead and other metals, document the time-evolving human footprint on the ocean, and assist with validating models.
attribute NC_GLOBAL projects_0_end_date String 2017-02
attribute NC_GLOBAL projects_0_geolocation String Subpolar North Atlantic; Labrador Sea; Greenland
attribute NC_GLOBAL projects_0_name String Filling Gaps in the Atlantic and Pacific Pb and Pb Isotope Spatial and Temporal Evolution
attribute NC_GLOBAL projects_0_project_nid String 651715
attribute NC_GLOBAL projects_0_project_website String http://www.geovide.obs-vlfr.fr/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2014-03
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 Southernmost_Northing double 40.33325
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL subsetVariables String cruise_id, SECT_ID
attribute NC_GLOBAL summary String Dissolved lead data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014
attribute NC_GLOBAL title String Dissolved lead data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -51.09588
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable cruise_id   String  
attribute cruise_id description String Cruise identification
attribute cruise_id ioos_category String Identifier
attribute cruise_id long_name String Cruise Id
attribute cruise_id units String unitless
variable SECT_ID   String  
attribute SECT_ID description String Cruise section identifier
attribute SECT_ID ioos_category String Identifier
attribute SECT_ID long_name String SECT ID
attribute SECT_ID units String unitless
variable STNNBR   byte  
attribute STNNBR _FillValue byte 127
attribute STNNBR actual_range byte 1, 77
attribute STNNBR description String Station number
attribute STNNBR ioos_category String Unknown
attribute STNNBR long_name String STNNBR
attribute STNNBR units String unitless
variable BTL_DATE   int  
attribute BTL_DATE _FillValue int 2147483647
attribute BTL_DATE actual_range int 20140519, 20140625
attribute BTL_DATE description String Date (yyyymmdd) when the bottle was fired according to the bottle file.
attribute BTL_DATE ioos_category String Time
attribute BTL_DATE long_name String BTL DATE
attribute BTL_DATE units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 40.33325, 59.79927
attribute latitude axis String Y
attribute latitude description String Latitude of bottle firing; north is positive.
attribute latitude ioos_category String Location
attribute latitude long_name String BTL LAT
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 -51.09588, -10.036
attribute longitude axis String X
attribute longitude description String Lonitude of bottle firing; east is positive.
attribute longitude ioos_category String Location
attribute longitude long_name String BTL LON
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable BTLNBR   byte  
attribute BTLNBR _FillValue byte 127
attribute BTLNBR actual_range byte 1, 24
attribute BTLNBR description String Bottle number; typically 1-24
attribute BTLNBR ioos_category String Unknown
attribute BTLNBR long_name String BTLNBR
attribute BTLNBR units String unitless
variable CTDPRS   double  
attribute CTDPRS _FillValue double NaN
attribute CTDPRS actual_range double 11.1, 5436.9
attribute CTDPRS description String CTD pressure
attribute CTDPRS ioos_category String Unknown
attribute CTDPRS long_name String CTDPRS
attribute CTDPRS units String decibars
variable SAMPNO   short  
attribute SAMPNO _FillValue short 32767
attribute SAMPNO actual_range short 1, 560
attribute SAMPNO description String Sequential sample number within the cast (usually corresponds to the bottle number)
attribute SAMPNO ioos_category String Unknown
attribute SAMPNO long_name String SAMPNO
attribute SAMPNO units String unitless
variable PI_SAMPNO   short  
attribute PI_SAMPNO _FillValue short 32767
attribute PI_SAMPNO actual_range short 10003, 10516
attribute PI_SAMPNO description String PI issued sample number for when a standard SAMPNO was not appropriate.
attribute PI_SAMPNO ioos_category String Identifier
attribute PI_SAMPNO long_name String PI SAMPNO
attribute PI_SAMPNO units String unitless
variable Pb_D_CONC_BOTTLE   float  
attribute Pb_D_CONC_BOTTLE _FillValue float NaN
attribute Pb_D_CONC_BOTTLE actual_range float 5.1, 101.0
attribute Pb_D_CONC_BOTTLE description String Pb passing through a 0.2um SARTOBRAN or 0.45 um Supor filter; Sample size was quantified volumetrically at room temperature, then converted to weight units assuming a density of 1.027 g/cc.
attribute Pb_D_CONC_BOTTLE ioos_category String Unknown
attribute Pb_D_CONC_BOTTLE long_name String Pb D CONC BOTTLE
attribute Pb_D_CONC_BOTTLE units String picomoles per kilogram
variable Pb_D_CONC_BOTTLE_SD   float  
attribute Pb_D_CONC_BOTTLE_SD _FillValue float NaN
attribute Pb_D_CONC_BOTTLE_SD actual_range float 0.0, 4.4
attribute Pb_D_CONC_BOTTLE_SD colorBarMaximum double 50.0
attribute Pb_D_CONC_BOTTLE_SD colorBarMinimum double 0.0
attribute Pb_D_CONC_BOTTLE_SD description String Standard deviation of Pb_D_BOTTLE
attribute Pb_D_CONC_BOTTLE_SD ioos_category String Statistics
attribute Pb_D_CONC_BOTTLE_SD long_name String Pb D CONC BOTTLE SD
attribute Pb_D_CONC_BOTTLE_SD units String picomoles per kilogram
variable NBR_OF_SAMPLES   byte  
attribute NBR_OF_SAMPLES _FillValue byte 127
attribute NBR_OF_SAMPLES actual_range byte 2, 7
attribute NBR_OF_SAMPLES description String Number of samples collected
attribute NBR_OF_SAMPLES ioos_category String Unknown
attribute NBR_OF_SAMPLES long_name String NBR OF SAMPLES
attribute NBR_OF_SAMPLES units String unitless
variable Pb_D_CONC_BOTTLE_FLAG   byte  
attribute Pb_D_CONC_BOTTLE_FLAG _FillValue byte 127
attribute Pb_D_CONC_BOTTLE_FLAG actual_range byte 1, 4
attribute Pb_D_CONC_BOTTLE_FLAG colorBarMaximum double 150.0
attribute Pb_D_CONC_BOTTLE_FLAG colorBarMinimum double 0.0
attribute Pb_D_CONC_BOTTLE_FLAG description String Quality flag for parameter Pb_D_CONC_BOTTLE; follows the convention: 1 = good; 3 = questionable; 4 = bad
attribute Pb_D_CONC_BOTTLE_FLAG ioos_category String Quality
attribute Pb_D_CONC_BOTTLE_FLAG long_name String Pb D CONC BOTTLE FLAG
attribute Pb_D_CONC_BOTTLE_FLAG units String unitless
variable CASTNO   byte  
attribute CASTNO _FillValue byte 127
attribute CASTNO actual_range byte 2, 10
attribute CASTNO description String Cast number
attribute CASTNO ioos_category String Unknown
attribute CASTNO long_name String CASTNO
attribute CASTNO units String unitless

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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