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Title Sum-
Institution Dataset ID
     data   graph     files  public DIC and del13C-DIC from nine M/S Columbus Waikato cruises between New Zealand and Long Beach,
CA in the Pacific Basin from 2004-2006
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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,.odvTxt
attribute NC_GLOBAL acquisition_description String Shipboard Sample Collection Methods: Samples were collected in pre-washed and
baked 250 ml ground glass stoppered bottles that were poisoned with 100 ul of
a saturated HgCl2 solution. The stored sealed samples were returned to the
Stable Isotope Laboratory at the University of Washington for extraction and

Laboratory Methods:\u00a0CO2 was extracted from the DIC seawater samples using
a modification of the helium stripping technique described in Quay and
Stutsman (2003). The del13C is measured on a Thermo Finnigan MAT 253 mass
attribute NC_GLOBAL awards_0_award_nid String 700867
attribute NC_GLOBAL awards_0_award_number String OCE-0327006
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0327006 (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 awards_1_award_nid String 700925
attribute NC_GLOBAL awards_1_award_number String NA17RJ1232
attribute NC_GLOBAL awards_1_funder_name String National Oceanic and Atmospheric Administration
attribute NC_GLOBAL awards_1_funding_acronym String NOAA
attribute NC_GLOBAL awards_1_funding_source_nid String 352
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String DIC and d13C-DIC
from M/S Columbus Waikato cruises
PI: Paul Quay (University of Washington)
Co-PI: Laurie Juranek (Oregon State University)
Version: 25 May 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 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2017-05-24T19:30:16Z
attribute NC_GLOBAL date_modified String 2019-08-02T18:48:50Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.700907.1
attribute NC_GLOBAL Easternmost_Easting double 179.7
attribute NC_GLOBAL geospatial_lat_max double 46.4
attribute NC_GLOBAL geospatial_lat_min double -39.11
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.7
attribute NC_GLOBAL geospatial_lon_min double -179.93
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/700907 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String del13C was measured on a Thermo Finnigan MAT 253 mass spectrometer.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 700923
attribute NC_GLOBAL instruments_0_description String The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_0_instrument_nid String 469
attribute NC_GLOBAL instruments_0_supplied_name String Thermo Finnigan MAT 253 mass spectrometer
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, cruise, d13, d13C_DIC, data, dataset, date, dic, dmo, environmental, erddap, iso, laboratory, latitude, longitude, management, marine, noaa, oceanography, office, pacific, pmel, PMEL_cruise_id, preliminary, sil, SIL_cruise_id, time, time2
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/700907/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/700907 (external link)
attribute NC_GLOBAL Northernmost_Northing double 46.4
attribute NC_GLOBAL param_mapping String {'700907': {'lat': 'master - latitude', 'lon': 'master - longitude', 'ISO_DateTime_UTC': 'master - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/700907/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Washington
attribute NC_GLOBAL people_0_affiliation_acronym String UW
attribute NC_GLOBAL people_0_person_name String Paul Quay
attribute NC_GLOBAL people_0_person_nid String 50590
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 Oregon State University
attribute NC_GLOBAL people_1_affiliation_acronym String OSU-CEOAS
attribute NC_GLOBAL people_1_person_name String Laurie Juranek
attribute NC_GLOBAL people_1_person_nid String 527926
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 Washington
attribute NC_GLOBAL people_2_affiliation_acronym String UW
attribute NC_GLOBAL people_2_person_name String Paul Quay
attribute NC_GLOBAL people_2_person_nid String 50590
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 13C/12C DIC Time-Series
attribute NC_GLOBAL projects_0_acronym String 13C/12C DIC Time-Series
attribute NC_GLOBAL projects_0_description String NSF Award Abstract:
The 13C/12C isotopic ratio of dissolved inorganic carbon (DIC) has been shown to be a very useful tracer of anthropogenic CO2 uptake in the ocean (Quay et al., 1992; Heimann and Maier-Reimer, 1996; Sonnerup et al., 2000; Quay et al., 2003). Seasonal changes in the d13C of DIC, coupled with corresponding changes in DIC concentration and pCO2, have been used to close the surface ocean.s carbon budget (Zhang and Quay, 1997; Gruber et al., 1998, Quay and Stutsman, in press). Time- series measurements of d13C, DIC and pCO2, therefore, allow one to separate biological from physical causes for interannual variations in the rate of oceanic CO2 uptake as Gruber et al. (2002) recently demonstrated at BATS. Despite these advantages, there are only two sites in the subtropical N. Atlantic (BATS) and N. Pacific (HOT) oceans where such records exist. This lack of ocean time series records has severely limited our ability to understand the causes of interannual variations in the ocean uptake of anthropogenic CO2 (Quay, 2002). In stark contrast, continuous records of atmospheric CO2 and d13C are being measured at over 100 sites.
In this project, researchers at the University of Washington will initiate monthly d13C measurements at a third time-series site (ESTOC) in the eastern subtropical N. Atlantic. The d13C record at ESTOC, which will complement on-going measurements of DIC, pCO2 and alkalinity at the site, offers a very useful comparison to the BATS d13C record. Gruber et al. (2002) concluded that interannual variations in CO2 uptake at Bermuda correlated strongly with sea surface temperature (SST) and the North Atlantic Oscillation (NAO) index of atmospheric circulation. They used their d13C record at BATS to conclude that interannual variations in the rate of net community production (NCP) correlated with NAO. The researchers of this project intend to use the proposed d13C measurements at ESTOC to calculate NCP and determine whether interannual variations in the eastern subtropical N. Atlantic correlate with variations at Bermuda.
The research team will also continue its program of d13C measurements at HOT. Our decade-long d13C record at HOT shows that the d13C decrease rate in the surface ocean has doubled since 1995. The DIC increase rate has tripled since 1995. However, this apparent acceleration of anthropogenic CO2 uptake and d13C decrease occurred during a period (post 1998) when salinity is the highest ever measured at HOT and summertime SST has decreased significantly. These dramatic changes at HOT correlate with a shift in the Pacific Decadal Oscillation (PDO) climate index in 1998 from positive (since the late 1970s) to negative. This correlation suggests that changes in physical forcing (e.g., thermocline depth, mixed layer depth, gyre circulation rates) in the N. Pacific may have changed the subtropical ocean.s carbon budget. If so, the situation at HOT may be similar to that found by Gruber et al. (2002) at Bermuda. The team intends to use d13C measurements at HOT to determine whether the accelerated DIC increase is a result of changes in the NCP rate at HOT.
The proposed research addresses a major societal issue, that is, how natural variability affects the ocean.s uptake of anthropogenically produced CO2. The largest single human-controlled factor in future climate change is the production of CO2 from fossil fuel combustion and deforestation. The research is expected to yield an ocean d13C data set that will be made available to the broad scientific community and serve as a useful validation test for models predicting future atmospheric CO2 concentrations. The proposed research addresses one of the specific goals of the US Carbon Cycle Science Plan (1999), that is, to better quantify and understand the uptake of anthropogenic CO2 in the oceans. The proposed work enhances infrastructure for research and education in two ways. It establishes collaboration with scientists at the Universidad de Las Palmas in the Grand Canary Islands studying the ocean's carbon cycle. It tests equipment that could be broadly used by the oceanographic community to remotely collect seawater samples for carbon analysis.
attribute NC_GLOBAL projects_0_end_date String 2007-09
attribute NC_GLOBAL projects_0_name String Time-Series Measurements of the 13C/12C of Dissolved Inorganic Carbon
attribute NC_GLOBAL projects_0_project_nid String 700868
attribute NC_GLOBAL projects_0_start_date String 2003-10
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 -39.11
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Carbonate chemistry and isotopes from nine M/S Columbus Waikato cruises between New Zealand and Long Beach, CA in the Pacific Basin from 2004-2006. This dataset includes dissolved inorganic carbon (DIC), and del13C-DIC.
attribute NC_GLOBAL time_coverage_end String 2005-10-08T06:00:00Z
attribute NC_GLOBAL time_coverage_start String 2004-03-03T15:13:00Z
attribute NC_GLOBAL title String DIC and del13C-DIC from nine M/S Columbus Waikato cruises between New Zealand and Long Beach, CA in the Pacific Basin from 2004-2006
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -179.93
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable SIL_cruise_id   String  
attribute SIL_cruise_id bcodmo_name String cruise_id
attribute SIL_cruise_id description String UW Stable Isotope Lab cruise identification
attribute SIL_cruise_id long_name String SIL Cruise Id
attribute SIL_cruise_id units String unitless
variable PMEL_cruise_id   String  
attribute PMEL_cruise_id bcodmo_name String cruise_id
attribute PMEL_cruise_id description String NOAA Pacific Marine Environmental Lab cruise identification
attribute PMEL_cruise_id long_name String PMEL Cruise Id
attribute PMEL_cruise_id units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.07832678E9, 1.1287512E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date and time (UTC) formatted to ISO8601 standard (yyyy-mm-ddTHH:MM:SSxx)
attribute time ioos_category String Time
attribute time long_name String ISO Date Time UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DateTime_UTC
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 date   String  
attribute date bcodmo_name String date
attribute date description String Year, month, and day (UTC) in yyyy-mm-dd format
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 time2   String  
attribute time2 bcodmo_name String time
attribute time2 description String Time (UTC) in HHMM format
attribute time2 long_name String Time
attribute time2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time2 units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -39.11, 46.4
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; north is positive
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 -179.93, 179.7
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; east is positive
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 DIC   float  
attribute DIC _FillValue float NaN
attribute DIC actual_range float 1885.5, 2225.7
attribute DIC bcodmo_name String DIC
attribute DIC description String Dissolved inorganic carbon measured manometrically
attribute DIC long_name String DIC
attribute DIC units String micromoles/kilogram (umol/kg)
variable d13C_DIC   float  
attribute d13C_DIC _FillValue float NaN
attribute d13C_DIC actual_range float 1.01, 1.83
attribute d13C_DIC bcodmo_name String d13C_DIC
attribute d13C_DIC description String Carbon 13 to Carbon 12 ratio of DIC: 1000*[(13C/12C)sample - (13C/12C)standard]/ (13C/12C)standard
attribute d13C_DIC long_name String D13 C DIC
attribute d13C_DIC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/D13CMIBX/ (external link)
attribute d13C_DIC units String per mil

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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