BCO-DMO ERDDAP
Accessing BCO-DMO data 		log in    
Brought to you by BCO-DMO    
 
 
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 NO3-+NO2- d15N analysis was by the \\u201cdenitrifier method\\u201d and followed\nthe methods described by Sigman et al., 2001, Casciotti et al., 2002, McIlvin\nand Casciotti, 2011, and Weigand et al., 2016. Briefly, NO3-+NO2- was\nquantitatively reduced to N2O by Pseudomonas aureofaciens and Pseudomonas\nchlororaphis, which was then cryogenically focused and analyzed on an isotope\nratio mass spectrometer. A volume of sample was added to each bacterial vial\nto achieve a final quantity of 10 or 20 nmols N2O, which was then purged from\nthe vial using a helium carrier gas. The d15N of N2O in samples was calibrated\nwith the international isotopic reference materials described in the\nProcessing Description.
attribute NC_GLOBAL awards_0_award_nid String 710561
attribute NC_GLOBAL awards_0_award_number String OCE-1537314
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1537314 (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 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 Station location and NO3+NO2 d15N values measured for the OUTPACE long duration (LD) stations. \n PI: Angela Knapp \n Version: 2018-04-11
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 2018-04-11T19:49:07Z
attribute NC_GLOBAL date_modified String 2018-09-20T17:38:55Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.733303
attribute NC_GLOBAL Easternmost_Easting double 168.0118
attribute NC_GLOBAL geospatial_lat_max double -18.179
attribute NC_GLOBAL geospatial_lat_min double -19.9832
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 168.0118
attribute NC_GLOBAL geospatial_lon_min double -172.7813
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 2002.0
attribute NC_GLOBAL geospatial_vertical_min double 3.0
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/733237 (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 Nitrate+nitrite d15N was measured using a Thermo Finnigan Delta V isotope ratio mass spectrometer.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 733270
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 Delta V isotope ratio mass spectrometer.
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, cast, chemical, d15, data, dataset, date, density, depth, dmo, earth, Earth Science > Oceans > Salinity/Density > Density, erddap, latitude, longitude, management, nitrate, nitrite, no2, no3, NO3_NO2, NO3_NO2_d15N, NO3_NO2_d15N_1_SD, ocean, oceanography, oceans, office, preliminary, salinity, science, sea, sea_water_sigma_theta, seawater, sigma, Sigma_theta, station, theta, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/733237/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/733237 (external link)
attribute NC_GLOBAL Northernmost_Northing double -18.179
attribute NC_GLOBAL param_mapping String {'733237': {'Latitude': 'flag - latitude', 'Depth': 'flag - depth', 'Longitude': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/733237/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Florida State University
attribute NC_GLOBAL people_0_affiliation_acronym String FSU
attribute NC_GLOBAL people_0_person_name String Angela N. Knapp
attribute NC_GLOBAL people_0_person_nid String 555499
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 Mediterranean Institute of Oceanography
attribute NC_GLOBAL people_1_affiliation_acronym String MIO
attribute NC_GLOBAL people_1_person_name String Sophie Bonnet
attribute NC_GLOBAL people_1_person_nid String 663895
attribute NC_GLOBAL people_1_role String International Collaborator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Mediterranean Institute of Oceanography
attribute NC_GLOBAL people_2_affiliation_acronym String MIO
attribute NC_GLOBAL people_2_person_name String Thierry Moutin
attribute NC_GLOBAL people_2_person_nid String 663893
attribute NC_GLOBAL people_2_role String International Collaborator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Mediterranean Institute of Oceanography
attribute NC_GLOBAL people_3_affiliation_acronym String MIO
attribute NC_GLOBAL people_3_person_name String Oliver Grosso
attribute NC_GLOBAL people_3_person_nid String 733295
attribute NC_GLOBAL people_3_role String Scientist
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String Villefranche Oceanographic Laboratory
attribute NC_GLOBAL people_4_affiliation_acronym String LOV
attribute NC_GLOBAL people_4_person_name String Nathalie Leblond
attribute NC_GLOBAL people_4_person_nid String 733296
attribute NC_GLOBAL people_4_role String Scientist
attribute NC_GLOBAL people_4_role_type String originator
attribute NC_GLOBAL people_5_affiliation String Florida State University
attribute NC_GLOBAL people_5_affiliation_acronym String FSU
attribute NC_GLOBAL people_5_person_name String Kelly M. McCabe
attribute NC_GLOBAL people_5_person_nid String 733294
attribute NC_GLOBAL people_5_role String Student
attribute NC_GLOBAL people_5_role_type String related
attribute NC_GLOBAL people_6_affiliation String Florida State University
attribute NC_GLOBAL people_6_affiliation_acronym String FSU
attribute NC_GLOBAL people_6_person_name String Angela N. Knapp
attribute NC_GLOBAL people_6_person_nid String 555499
attribute NC_GLOBAL people_6_role String Contact
attribute NC_GLOBAL people_6_role_type String related
attribute NC_GLOBAL people_7_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_7_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_7_person_name String Mathew Biddle
attribute NC_GLOBAL people_7_person_nid String 708682
attribute NC_GLOBAL people_7_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_7_role_type String related
attribute NC_GLOBAL project String SW Pac N2 fixation
attribute NC_GLOBAL projects_0_acronym String SW Pac N2 fixation
attribute NC_GLOBAL projects_0_description String NSF Award Abstract:\nThe availability of nitrogen in the surface ocean plays a critical role regulating rates of primary productivity in the ocean, and thus through modification of the carbon cycle, nitrogen has the capacity to influence climate. The dominant source of biologically available nitrogen to the ocean is through a process known as di-nitrogen (N2) fixation, which involves the reduction of N2 gas dissolved in seawater to ammonium by microbes referred to as diazotrophs. While significant progress has been made identifying a diversity of marine diazotrophs in recent years using molecular tools, quantifying global rates of N2 fixation, and identifying which ocean basin supports the highest fluxes, has remained a vexing question. This research will quantify rates of N2 fixation as well as its importance for supporting production in the southwest Pacific Ocean. Results from this research will shed light on the sensitivities of N2 fixation (temperature, iron concentrations) as well as the extent of spatial and temporal coupling of nitrogen sources and sinks in the ocean. The work will be carried out by an early career scientist, and involve mentoring of young women, middle school girls and minorities, training of undergraduate and graduate researchers, and international collaborations.\nIdentifying the spatial distribution of the largest di-nitrogen (N2) fixation fluxes to the ocean remains a critical goal of chemical oceanography. The spatial distribution can inform our understanding of the environmental sensitivities of N2 fixation and the capacity for the dominant marine nitrogen (N) source and sink processes to respond to each other and thus influence the global carbon cycle and climate. In addition to temperature, two factors are at the heart of the current debate over what influences the spatial distribution of N2 fixation in the ocean: 1) the presence of adequate iron to meet the needs of N2 fixing microbes, and, 2) the absolute concentrations as well as ratios of surface ocean nitrate and phosphate concentrations that are low relative to the \"Redfield\" ratio, which are thought to favor N2 fixing microbes. This project will test the effects of gradients in atmospheric dust deposition on N2 fixation rates when surface waters have relatively constant but favorable nitrate to phosphate concentrations. The work will be carried out in the southwest Pacific, a region highlighted by new modeling work for its unique geochemical characteristics that are expected to favor significant N2 fixation fluxes. Nitrate+nitrite d15N as well as total dissolved nitrogen (TDN) concentration and d15N will be measured in water column samples collected on a French cruise and sediment traps were deployed to capture the sinking particulate N flux. The results will be compared with published work to evaluate which ocean regions support the largest N2 fixation fluxes.\nMore information:\nThis project was part of the Oligotrophy to UlTra-oligotrophy PACific Experiment (OUTPACE) cruise in the Southwest Pacific between New Caledonia (166°28' E; 22°14' S) and Tahiti (149°36' W; 17°34' S) 0-2000 m​\n* OUTPACE cruise (doi: https://dx.doi.org/10.17600/15000900)\n* OUTPACE website: https://outpace.mio.univ-amu.fr/?lang=en
attribute NC_GLOBAL projects_0_end_date String 2018-07
attribute NC_GLOBAL projects_0_geolocation String Southwest Pacific Ocean between New Caledonia and Tahiti along ~18 deg S
attribute NC_GLOBAL projects_0_name String Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean
attribute NC_GLOBAL projects_0_project_nid String 710562
attribute NC_GLOBAL projects_0_project_website String http://scope.soest.hawaii.edu/data/lava/lava.html (external link)
attribute NC_GLOBAL projects_0_start_date String 2015-08
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 -19.9832
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Constraining the rates and spatial distribution of di-nitrogen (N2) fixation fluxes to the ocean informs our understanding of the environmental sensitivities of N2 fixation as well as the timescale over which the fluxes of nitrogen (N) to and from the ocean may respond to each other. Here we quantify rates of N2 fixation as well as its contribution to export production along a zonal transect in the Western Tropical South Pacific (WTSP) Ocean using N isotope (\\u201cd15N\\u201d) budgets. Comparing measurements of water column nitrate+nitrite d15N with the d15N of sinking particulate N at a western, central, and eastern station, these d15N budgets indicate high, modest, and low rates of N2 fixation at the respective stations. The results also imply that N2 fixation supports exceptionally high, i.e., >50%, of export production at the western and central stations, which are also proximal to the largest iron sources. These geochemically-based rates of N2 fixation are equal to or greater than those previously reported in the tropical North Atlantic, indicating that the WTSP Ocean has the capacity to support globally significant rates of N2 fixation, which may compensate for N removal in the oxygen deficient zones of the eastern tropical Pacific.
attribute NC_GLOBAL title String [OUTPACE - water column nitrate+nitrite] - Water column nitrate+nitrite d15N measurements from R/V L'Atalante in the southwest Pacific Ocean between New Caledonia and Tahiti from February to March 2015 (Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -172.7813
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Date int
attribute Date _FillValue int 2147483647
attribute Date actual_range int 20150223, 20150330
attribute Date bcodmo_name String date
attribute Date description String Date of observation in four digit year; 2 digit month; 2 digit day (yyyymmdd) 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 units String unitless
variable longitude double
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -172.7813, 168.0118
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 with west negative.
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 latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -19.9832, -18.179
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 with south negative.
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 Station String
attribute Station bcodmo_name String station
attribute Station description String name of the station
attribute Station long_name String Station
attribute Station units String unitless
variable Cast short
attribute Cast _FillValue short 32767
attribute Cast actual_range short 10, 210
attribute Cast bcodmo_name String cast
attribute Cast description String cast number
attribute Cast long_name String Cast
attribute Cast 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 3.0, 2002.0
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 depth of observation
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 Sigma_theta float
attribute Sigma_theta _FillValue float NaN
attribute Sigma_theta actual_range float 21.71, 27.67
attribute Sigma_theta bcodmo_name String sigma_theta
attribute Sigma_theta description String potential density
attribute Sigma_theta long_name String Sea Water Sigma Theta
attribute Sigma_theta units String kilograms per meter cubed (kg/m3)
variable NO3_NO2 String
attribute NO3_NO2 bcodmo_name String NO3_NO2
attribute NO3_NO2 description String nitrate+nitrite concentration ([NO3-+NO2-])
attribute NO3_NO2 long_name String NO3 NO2
attribute NO3_NO2 units String micromole (uM)
variable NO3_NO2_d15N String
attribute NO3_NO2_d15N bcodmo_name String 15N of nitrate plus nitrite
attribute NO3_NO2_d15N description String nitrate+nitrite d15N (NO3-+NO2- d15N)
attribute NO3_NO2_d15N long_name String NO3 NO2 D15 N
attribute NO3_NO2_d15N units String per mil
variable NO3_NO2_d15N_1_SD String
attribute NO3_NO2_d15N_1_SD bcodmo_name String 15N of nitrate plus nitrite
attribute NO3_NO2_d15N_1_SD description String nitrate+nitrite d15N standard deviation
attribute NO3_NO2_d15N_1_SD long_name String NO3 NO2 D15 N 1 SD
attribute NO3_NO2_d15N_1_SD units String per mil

 
ERDDAP, Version 2.22
Disclaimers | Privacy Policy | Contact