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   set  data   graph     files  public Underway dissolved macronutrient concentrations collected on RVIB Nathaniel B. Palmer cruise
NBP 16-08 from September to October 2016
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_742549

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,.odvTxt
attribute NC_GLOBAL acquisition_description String Sampling and analytical procedures:
Underway samples were collected from the flow-through seawater system aboard
the R/V/I/B Nathanial B. Palmer between September 10 and October 11 of 2016.
Samples for macronutrients were filtered through 0.2 um syringe filters and
collected in 50 mL Falcon tubes that had been rinsed with distilled water
(DIW), soaked overnight in 10% hydrocholoric acid (HCl, Fisher, Trace Metal
Grade), rinsed three times with DIW again, dried and rinsed three times with
sample prior to filling. Samples were analyzed shipboard, typically within 24
hours, for nitrate+nitrite, phosphate, silicate, and occasionally nitrite.
Until analyzed shipboard, samples were stored sealed at 4 \u00baC in the dark
and, following analyses, samples were frozen at -20 \u00baC and shipped back
to the University of South Florida for laboratory-based analyses of nitrite
and ammonium, and in some cases again for nitrate+nitrite, phosphate and
silicate.

Analytical methodology was based on established methods (Parsons 1984; Gordon
et al. 1993) as described for the Lachat 8500 QuickChem in the Lachat
QuickChem methods manuals and for the Technicon AAII in the CARIACO methods
manual. All labware were either glass or high density polyethylene and were
cleaned by an initial distilled water (DIW) rinse, followed by an overnight
10% hydrochloric acid (Fisher, Trace Metal Grade) soak, then rinsed three
times with DIW and three times with solvent, analyte or sample prior to fill.
Dedicated glassware was used for reagents and standards to avoid cross
contamination issues. All reagents were made in high purity Milli-Q (>18
M\u03a9 cm) water.

An artificial seawater matrix was used as the carrier for the analyses on the
Lachat QuickChem 8500 at sea and on the Technicon AAII in the lab. 4L batches
of artificial seawater were made by dissolving pre-weighed salts (128.50 g
NaCl, 28.50 g MgSO4*7H2O, 0.6714 g NaHCO3) in Milli-Q to match Southern Ocean
seawater salinity and adjusted to match Southern Ocean seawater pH with 10%
hydrochloric acid.

Five-point standard curves were analyzed in duplicate at the beginning and end
of each run with duplicate reagent blanks, and quality control checks every
seventh sample. Quality control check consisted of either an international
reference sample or a quality control sample. The certified nutrient reference
samples used, lots CC and CD, were purchased from Kanso Technos in Osaka,
Japan. The quality control sample was made from a 20-L homogenized surface
Southern Ocean filtered and autoclaved seawater sample. The midpoint standard
from the calibration curve was also analyzed every fourteenth sample to check
for drift during the runs.

Detection limits for all five parameters on the two instruments used were
determined from three times the standard deviation of replicate artificial
seawater blanks (n>6). On the Lachat QuickChem 8500, limits of detection were
0.01 uM for nitrate+nitrite, 0.02 uM for phosphate, 0.03 uM for silicate, 0.05
uM for nitrite and 0.5 uM for ammonium. On the Technicon AAII, limits of
detection were 0.06 uM for nitrate+nitrite, 0.02 uM for phosphate, 0.2 uM for
silicate, 0.01 uM for nitrite, and 0.05 uM for ammonium.

Sample analyses for macronutrients were performed by William Abbott (USF).

Gordon, L.I., Jennings, J., J.C., Ross, A.A. and Krest, J.M., 1993. A
suggested protocol for continuous flow automated analysis of seawater
nutrients (phosphate, nitrate, nitrite and silicic acid) in the WOCE
Hydrographic Program and the Joint Global Ocean Fluxes Study, Methods Manual
WHPO 91-1. WOCE Hydrographic Program Office.

Parsons, T.R., Maita, Y. and Lalli, C.M., 1984. A manual of chemical and
biological methods for seawater analysis. Pergammon Press, Oxford, 173 pp.
attribute NC_GLOBAL awards_0_award_nid String 738581
attribute NC_GLOBAL awards_0_award_number String OPP-1443483
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1443483 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Office of Polar Programs (formerly NSF PLR)
attribute NC_GLOBAL awards_0_funding_acronym String NSF OPP
attribute NC_GLOBAL awards_0_funding_source_nid String 713360
attribute NC_GLOBAL awards_0_program_manager String Jennifer Burns
attribute NC_GLOBAL awards_0_program_manager_nid String 50508
attribute NC_GLOBAL awards_1_award_nid String 738586
attribute NC_GLOBAL awards_1_award_number String OPP-1443474
attribute NC_GLOBAL awards_1_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443474 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Office of Polar Programs (formerly NSF PLR)
attribute NC_GLOBAL awards_1_funding_acronym String NSF OPP
attribute NC_GLOBAL awards_1_funding_source_nid String 713360
attribute NC_GLOBAL awards_1_program_manager String Jennifer Burns
attribute NC_GLOBAL awards_1_program_manager_nid String 50508
attribute NC_GLOBAL awards_2_award_nid String 738588
attribute NC_GLOBAL awards_2_award_number String OPP-1443646
attribute NC_GLOBAL awards_2_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443646 (external link)
attribute NC_GLOBAL awards_2_funder_name String NSF Office of Polar Programs (formerly NSF PLR)
attribute NC_GLOBAL awards_2_funding_acronym String NSF OPP
attribute NC_GLOBAL awards_2_funding_source_nid String 713360
attribute NC_GLOBAL awards_2_program_manager String Jennifer Burns
attribute NC_GLOBAL awards_2_program_manager_nid String 50508
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String NBP16-08 Underway Nutrients
PI: Kristen Buck (USF)
Co-PIs: Bethany Jenkins (URI) & P. Dreux Chappell (Old Dominion)
Version date: 26 July 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 2018-07-26T19:41:58Z
attribute NC_GLOBAL date_modified String 2020-01-03T18:00:20Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.742549.1
attribute NC_GLOBAL Easternmost_Easting double -56.624
attribute NC_GLOBAL geospatial_lat_max double -59.05
attribute NC_GLOBAL geospatial_lat_min double -64.968
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -56.624
attribute NC_GLOBAL geospatial_lon_min double -68.163
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 6.0
attribute NC_GLOBAL geospatial_vertical_min double 6.0
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/742549 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String FIA
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Lachat QuickChem 8500 series 2, 4 channel analyzer
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 742561
attribute NC_GLOBAL instruments_0_description String An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB36/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Flow Injection Analyzer
attribute NC_GLOBAL instruments_0_instrument_nid String 657
attribute NC_GLOBAL instruments_0_supplied_name String Lachat QuickChem 8500
attribute NC_GLOBAL instruments_1_acronym String Technicon AutoAnalyzerII
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Technicon AAII
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 742562
attribute NC_GLOBAL instruments_1_description String A rapid flow analyzer that may be used to measure nutrient concentrations in seawater. It is a continuous segmented flow instrument consisting of a sampler, peristaltic pump, analytical cartridge, heating bath, and colorimeter. See more information about this instrument from the manufacturer.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0291/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Technicon AutoAnalyzerII
attribute NC_GLOBAL instruments_1_instrument_nid String 473306
attribute NC_GLOBAL instruments_1_supplied_name String Technicon AAII
attribute NC_GLOBAL keywords String ammonium, bco, bco-dmo, biological, chemical, chemistry, concentration, data, dataset, date, depth, deviation, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Nitrate, erddap, evtnbr, GMT, instr, iso, latitude, longitude, management, mole, mole_concentration_of_nitrate_in_sea_water, n02, nh4, NH4_INSTR, NH4_pcnt_RSD, NH4_STDEV, nitrate, nitrite, no2, NO2_INSTR, NO2_pcnt_RSD, NO2_STDEV, no3, NO3_NO2, NO3_NO2_INSTR, NO3_NO2_pcnt_RSD, NO3_NO2_STDEV, ocean, oceanography, oceans, office, pcnt, phosphate, po4, PO4_INSTR, PO4_pcnt_RSD, PO4_STDEV, preliminary, rsd, sample, SAMPLE_ID, science, sea, seawater, SiO4, SiO4_INSTR, SiO4_pcnt_RSD, SiO4_STDEV, standard, standard deviation, stdev, time, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/742549/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/742549 (external link)
attribute NC_GLOBAL Northernmost_Northing double -59.05
attribute NC_GLOBAL param_mapping String {'742549': {'ISO_DateTime_GMT': 'master - time', 'LATITUDE': 'flag - latitude', 'DEPTH': 'flag - depth', 'LONGITUDE': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/742549/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of South Florida
attribute NC_GLOBAL people_0_affiliation_acronym String USF
attribute NC_GLOBAL people_0_person_name String Kristen N. Buck
attribute NC_GLOBAL people_0_person_nid String 51624
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 Old Dominion University
attribute NC_GLOBAL people_1_affiliation_acronym String ODU
attribute NC_GLOBAL people_1_person_name String Phoebe Dreux Chappell
attribute NC_GLOBAL people_1_person_nid String 636572
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 University of Rhode Island
attribute NC_GLOBAL people_2_affiliation_acronym String URI
attribute NC_GLOBAL people_2_person_name String Bethany D. Jenkins
attribute NC_GLOBAL people_2_person_nid String 558172
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 University of South Florida
attribute NC_GLOBAL people_3_affiliation_acronym String USF
attribute NC_GLOBAL people_3_person_name String Kristen N. Buck
attribute NC_GLOBAL people_3_person_nid String 51624
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 Shannon Rauch
attribute NC_GLOBAL people_4_person_nid String 51498
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 Diatom_Bacteria_Ligands
attribute NC_GLOBAL projects_0_acronym String Diatom_Bacteria_Ligands
attribute NC_GLOBAL projects_0_description String This project focuses on an important group of photosynthetic algae in the Southern Ocean (SO), diatoms, and the roles associated bacterial communities play in modulating their growth. Diatom growth fuels the SO food web and balances atmospheric carbon dioxide by sequestering the carbon used for growth to the deep ocean on long time scales as cells sink below the surface. The diatom growth is limited by the available iron in the seawater, most of which is not freely available to the diatoms but instead is tightly bound to other compounds. The nature of these compounds and how phytoplankton acquire iron from them is critical to understanding productivity in this region and globally. The investigators will conduct experiments to characterize the relationship between diatoms, their associated bacteria, and iron in open ocean and inshore waters. Experiments will involve supplying nutrients at varying nutrient ratios to natural phytoplankton assemblages to determine how diatoms and their associated bacteria respond to different conditions. This will provide valuable data that can be used by climate and food web modelers and it will help us better understand the relationship between iron, a key nutrient in the ocean, and the organisms at the base of the food web that use iron for photosynthetic growth and carbon uptake. The project will also further the NSF goals of training new generations of scientists and of making scientific discoveries available to the general public. The project supports early career senior investigators and the training of graduate and undergraduate students as well as outreach activities with middle school Girl Scouts in Rhode Island, inner city middle and high school age girls in Virginia, and middle school girls in Florida.
The project combines trace metal biogeochemistry, phytoplankton cultivation, and molecular biology to address questions regarding the production of iron-binding compounds and the role of diatom-bacterial interactions in this iron-limited region. Iron is an essential micronutrient for marine phytoplankton. Phytoplankton growth in the SO is limited by a lack of sufficient iron, with important consequences for carbon cycling and climate in this high latitude regime. Some of the major outstanding questions in iron biogeochemistry relate to the organic compounds that bind >99.9% of dissolved iron in surface oceans. The investigators' prior research in this region suggests that production of strong iron-binding compounds in the SO is linked to diatom blooms in waters with high nitrate to iron ratios. The sources of these compounds are unknown but the investigators hypothesize that they may be from bacteria, which are known to produce such compounds for their own use. The project will test three hypotheses concerning the production of these iron-binding compounds, limitations on the biological availability of iron even if present in high concentrations, and the roles of diatom-associated bacteria in these processes. Results from this project will provide fundamental information about the biogeochemical trigger, and biological sources and function, of natural strong iron-binding compound production in the SO, where iron plays a critical role in phytoplankton productivity, carbon cycling, and climate regulation.
attribute NC_GLOBAL projects_0_end_date String 2019-06
attribute NC_GLOBAL projects_0_geolocation String Southern Ocean, Western Antarctic Peninsula 60-65 S, 63 W
attribute NC_GLOBAL projects_0_name String Collaborative Research: Investigating Iron-binding Ligands in Southern Ocean Diatom Communities: The Role of Diatom-Bacteria Associations
attribute NC_GLOBAL projects_0_project_nid String 738582
attribute NC_GLOBAL projects_0_start_date String 2015-07
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 -64.968
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String depth,NH4_STDEV,NH4_pcnt_RSD
attribute NC_GLOBAL summary String Underway dissolved macronutrient concentrations collected on RVIB Nathaniel B. Palmer cruise NBP 16-08 from September to October 2016.
attribute NC_GLOBAL time_coverage_end String 2016-10-11T22:27:00Z
attribute NC_GLOBAL time_coverage_start String 2016-09-10T13:30:00Z
attribute NC_GLOBAL title String Underway dissolved macronutrient concentrations collected on RVIB Nathaniel B. Palmer cruise NBP 16-08 from September to October 2016
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -68.163
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable EVTNBR   short  
attribute EVTNBR _FillValue short 32767
attribute EVTNBR actual_range short 8, 244
attribute EVTNBR bcodmo_name String event
attribute EVTNBR description String Event number
attribute EVTNBR long_name String EVTNBR
attribute EVTNBR nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute EVTNBR units String unitless
variable DATE   String  
attribute DATE bcodmo_name String date
attribute DATE description String GMT date when underway sample was collected, in format yyyy-mm-dd
attribute DATE long_name String DATE
attribute DATE nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute DATE time_precision String 1970-01-01
attribute DATE units String unitless
variable GMT   String  
attribute GMT bcodmo_name String time
attribute GMT description String GMT time when underway sample was collected, in format HH:MM
attribute GMT long_name String GMT
attribute GMT nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute GMT units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.4735142E9, 1.47622482E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String GMT date and time when underway sample was collected, in ISO8601 format (yyyy-mm-ddTHH:MM:SS)
attribute time ioos_category String Time
attribute time long_name String ISO Date Time GMT
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DateTime_GMT
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -64.968, -59.05
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 Position when underway sample was collected in decimal degrees N
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 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 -68.163, -56.624
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 Position when underway sample was collected in decimal degrees E
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 standard_name String longitude
attribute longitude units String degrees_east
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 6.0, 6.0
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 Estimated sample collection depth below sea surface
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 SAMPLE_ID   String  
attribute SAMPLE_ID bcodmo_name String sample
attribute SAMPLE_ID description String Sample identification number
attribute SAMPLE_ID long_name String SAMPLE ID
attribute SAMPLE_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute SAMPLE_ID units String unitless
variable NO3_NO2   float  
attribute NO3_NO2 _FillValue float NaN
attribute NO3_NO2 actual_range float 24.4, 34.48
attribute NO3_NO2 bcodmo_name String NO3_NO2
attribute NO3_NO2 colorBarMaximum double 50.0
attribute NO3_NO2 colorBarMinimum double 0.0
attribute NO3_NO2 description String Concentration of dissolved nitrate+nitrite. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value. Noted as "bdl" when result was below detection limit of instrument(s) used.
attribute NO3_NO2 long_name String Mole Concentration Of Nitrate In Sea Water
attribute NO3_NO2 units String micromoles per liter (uM)
variable NO3_NO2_STDEV   String  
attribute NO3_NO2_STDEV bcodmo_name String NO3_NO2
attribute NO3_NO2_STDEV description String Standard deviation of replicate nitrate+nitrite concentration measurements. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NO3_NO2_STDEV long_name String NO3 NO2 STDEV
attribute NO3_NO2_STDEV units String micromoles per liter (uM)
variable NO3_NO2_pcnt_RSD   String  
attribute NO3_NO2_pcnt_RSD bcodmo_name String NO3_NO2
attribute NO3_NO2_pcnt_RSD description String Percent relative standard deviation of replicate nitrate+nitrite concentration measurements. Calculated as NO3_NO2_STDEV divided by NO3_NO2 and multiplied by 100. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NO3_NO2_pcnt_RSD long_name String NO3 NO2 Pcnt RSD
attribute NO3_NO2_pcnt_RSD units String unitless (percent)
variable NO3_NO2_INSTR   byte  
attribute NO3_NO2_INSTR _FillValue byte 127
attribute NO3_NO2_INSTR actual_range byte 1, 3
attribute NO3_NO2_INSTR bcodmo_name String instrument
attribute NO3_NO2_INSTR colorBarMaximum double 50.0
attribute NO3_NO2_INSTR colorBarMinimum double 0.0
attribute NO3_NO2_INSTR description String Notes which instrument was used for nitrate+nitrite measurements. 1 = Lachat 8500 QuickChem, 2 = Technicon AAII, 3 = Both Lachat 8500 QuickChem and Technicon AAII. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value.
attribute NO3_NO2_INSTR long_name String Mole Concentration Of Nitrate In Sea Water
attribute NO3_NO2_INSTR units String unitless
variable PO4   String  
attribute PO4 bcodmo_name String PO4
attribute PO4 description String Concentration of dissolved reactive phosphate. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value. Noted as "bdl" when result was below detection limit of instrument(s) used.
attribute PO4 long_name String PO4
attribute PO4 units String micromoles per liter (uM)
variable PO4_STDEV   String  
attribute PO4_STDEV bcodmo_name String PO4
attribute PO4_STDEV description String Standard deviation of replicate phosphate concentration measurements. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value.
attribute PO4_STDEV long_name String PO4 STDEV
attribute PO4_STDEV units String micromoles per liter (uM)
variable PO4_pcnt_RSD   String  
attribute PO4_pcnt_RSD bcodmo_name String PO4
attribute PO4_pcnt_RSD description String Percent relative standard deviation of replicate phosphate concentration measurements. Calculated as PO4_STDEV divided by PO4 and multiplied by 100. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value.
attribute PO4_pcnt_RSD long_name String PO4 Pcnt RSD
attribute PO4_pcnt_RSD units String unitless (percent)
variable PO4_INSTR   String  
attribute PO4_INSTR bcodmo_name String instrument
attribute PO4_INSTR description String Notes which instrument was used for phosphate measurements. 1 = Lachat 8500 QuickChem, 2 = Technicon AAII, 3 = Both Lachat 8500 QuickChem and Technicon AAII. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value.
attribute PO4_INSTR long_name String PO4 INSTR
attribute PO4_INSTR units String unitless
variable SiO4   String  
attribute SiO4 bcodmo_name String SiO4
attribute SiO4 description String Concentration of dissolved silicate. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value. Noted as "bdl" when result was below detection limit of instrument(s) used.
attribute SiO4 long_name String Si O4
attribute SiO4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/ (external link)
attribute SiO4 units String micromoles per liter (uM)
variable SiO4_STDEV   String  
attribute SiO4_STDEV bcodmo_name String SiO4
attribute SiO4_STDEV description String Standard deviation of replicate silicate concentration measurements. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute SiO4_STDEV long_name String Si O4 STDEV
attribute SiO4_STDEV nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/ (external link)
attribute SiO4_STDEV units String micromoles per liter (uM)
variable SiO4_pcnt_RSD   String  
attribute SiO4_pcnt_RSD bcodmo_name String SiO4
attribute SiO4_pcnt_RSD description String Percent relative standard deviation of replicate silicate concentration measurements. Calculated as SiO4_STDEV divided by SiO4 and multiplied by 100. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute SiO4_pcnt_RSD long_name String Si O4 Pcnt RSD
attribute SiO4_pcnt_RSD nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/ (external link)
attribute SiO4_pcnt_RSD units String unitless (percent)
variable SiO4_INSTR   String  
attribute SiO4_INSTR bcodmo_name String instrument
attribute SiO4_INSTR description String Notes which instrument was used for silicate measurements. 1 = Lachat 8500 QuickChem, 2 = Technicon AAII, 3 = Both Lachat 8500 QuickChem and Technicon AAII. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute SiO4_INSTR long_name String Si O4 INSTR
attribute SiO4_INSTR units String unitless
variable NO2   String  
attribute NO2 bcodmo_name String NO2
attribute NO2 description String Concentration of dissolved nitrite. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value. Noted as "bdl" when result was below detection limit of instrument(s) used.
attribute NO2 long_name String NO2
attribute NO2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/ (external link)
attribute NO2 units String micromoles per liter (uM)
variable NO2_STDEV   String  
attribute NO2_STDEV bcodmo_name String NO2
attribute NO2_STDEV description String Standard deviation of replicate nitrite concentration measurements. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NO2_STDEV long_name String NO2 STDEV
attribute NO2_STDEV nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/ (external link)
attribute NO2_STDEV units String micromoles per liter (uM)
variable NO2_pcnt_RSD   String  
attribute NO2_pcnt_RSD bcodmo_name String NO2
attribute NO2_pcnt_RSD description String Percent relative standard deviation of replicate nitrite concentration measurements. Calculated as NO2_STDEV divided by NO2 and multiplied by 100. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NO2_pcnt_RSD long_name String NO2 Pcnt RSD
attribute NO2_pcnt_RSD nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/ (external link)
attribute NO2_pcnt_RSD units String unitless (percent)
variable NO2_INSTR   String  
attribute NO2_INSTR bcodmo_name String instrument
attribute NO2_INSTR description String Notes which instrument was used for nitrite measurements. 1 = Lachat 8500 QuickChem, 2 = Technicon AAII, 3 = Both Lachat 8500 QuickChem and Technicon AAII. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NO2_INSTR long_name String NO2 INSTR
attribute NO2_INSTR units String unitless
variable NH4   String  
attribute NH4 bcodmo_name String Ammonium
attribute NH4 description String Concentration of dissolved ammonium. Noted as "nda" when no data available for this sample, no sample analyzed or obviously erroneous data value. Noted as "bdl" when result was below detection limit of instrument(s) used.
attribute NH4 long_name String NH4
attribute NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute NH4 units String micromoles per liter (uM)
variable NH4_STDEV   String  
attribute NH4_STDEV bcodmo_name String Ammonium
attribute NH4_STDEV description String Standard deviation of replicate ammonium concentration measurements. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NH4_STDEV long_name String NH4 STDEV
attribute NH4_STDEV nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute NH4_STDEV units String micromoles per liter (uM)
variable NH4_pcnt_RSD   String  
attribute NH4_pcnt_RSD bcodmo_name String Ammonium
attribute NH4_pcnt_RSD description String Percent relative standard deviation of replicate ammonium concentration measurements. Calculated as NH4_STDEV divided by NH4 and multiplied by 100. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NH4_pcnt_RSD long_name String NH4 PCNT RSD
attribute NH4_pcnt_RSD nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute NH4_pcnt_RSD units String unitless (percent)
variable NH4_INSTR   String  
attribute NH4_INSTR bcodmo_name String instrument
attribute NH4_INSTR description String Notes which instrument was used for ammonium measurements. 1 = Lachat 8500 QuickChem, 2 = Technicon AAII, 3 = Both Lachat 8500 QuickChem and Technicon AAII. Noted as "nda" when no data available for this sample, no sample analyzed, or obviously erroneous data value.
attribute NH4_INSTR long_name String NH4 INSTR
attribute NH4_INSTR units String unitless

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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