BCO-DMO ERDDAP
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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 In general, procedures followed those of Reuer et al. 2007. Briefly, 1 and 2-L\nbottles were pre-poisoned with 200 \\u03bcL and 400 \\u03bcL saturated HgCl2\nsolution, dried, and then evacuated to a pressure of < 10-3 mbar before the\ngas-tight valve was closed. The Louwer-Hapert 9mm valve sidearm was then\nfilled with distilled water and capped, making sure to remove all visible\nbubbles, to retard any atmospheric leaks. During sampling, water from the\nbottom of the Niskin flask was allowed to flow into the sidearm for several\nseconds (to flush out the distilled water) before the vacuum valve was opened\nto allow water to be siphoned into the sampling bottle. After\nsampling\\u2014each bottle typically being half full\\u2014the sidearm was\nfilled again with seawater and capped until analysis. All gas samples were\nanalyzed within 4 months of sampling.\n \nBefore gas analysis, bottles were gently agitated on a shaker table for 48h to\nequilibrate dissolved gases with the\\u00a0  \n headspace at room temperature (25C). Next, bottles were inverted and the\nseawater pumped out. Finally, the headspace gases were extracted and purified\naccording to Li et al. (2019), Yeung et al. (2016), and Yeung et al. (2018),\nin which O2 is separated from Ar and N2 by gas chromatography. O2/Ar ratios\nare standardized relative to atmospheric O2 and air dissolved in distilled\nwater. Bulk \\u03b418O and 17\\u0394 values are standardized against atmospheric\nO2 and O2 derived from laser-fluorination of San Carlos Olivine (Yeung et al.\n2018). Clumped-isotope \\u039435 and \\u039436 values are standardized against\nlaboratory-generated photolytic and heated-gas standards (Yeung et al. 2014).\n \nO2/Ar ratios were determined by integrating the peak areas for each species on\nan Aglient 7890B gas chromatograph utilizing thermal conductivity detection.\nDissolved O2 saturation was determined from these O2/Ar measurements and\nchecked independently through manometric determination of O2 yield and\nweighing the seawater from which it was extracted. Isotopologue analyses were\nperformed on a custom Nu Instruments Perspective IS high-resolution isotope\nratio mass spectrometer at Rice University.  \n \\u200b  \n Data was processed as was done in Yeung et al. (2018) for \\u03b418O and\n17\\u0394 values and Yeung et al. (2016) for clumped-isotope values. Dissolved\noxygen saturation is calculated using potential temperature and salinity and\nthe O2 and Ar saturation calculated using MATLAB programs by Roberta Hamme\n(O2sol and Arsol from\n[https://web.uvic.ca/~rhamme/download.html](\\\\\"https://web.uvic.ca/~rhamme/download.html\\\\\")).\nThese calculated values were compared to measured values to determine\nO2/O2sat.
attribute NC_GLOBAL awards_0_award_nid String 750417
attribute NC_GLOBAL awards_0_award_number String OCE-1436590
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1436590 (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 750424
attribute NC_GLOBAL awards_1_award_number String OCE-1533501
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1533501 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Henrietta N Edmonds
attribute NC_GLOBAL awards_1_program_manager_nid String 51517
attribute NC_GLOBAL awards_2_award_nid String 750426
attribute NC_GLOBAL awards_2_award_number String OCE-1436326
attribute NC_GLOBAL awards_2_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1436326 (external link)
attribute NC_GLOBAL awards_2_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_2_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_2_funding_source_nid String 355
attribute NC_GLOBAL awards_2_program_manager String Henrietta N Edmonds
attribute NC_GLOBAL awards_2_program_manager_nid String 51517
attribute NC_GLOBAL awards_3_award_nid String 750436
attribute NC_GLOBAL awards_3_award_number String OCE-1559004
attribute NC_GLOBAL awards_3_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1559004 (external link)
attribute NC_GLOBAL awards_3_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_3_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_3_funding_source_nid String 355
attribute NC_GLOBAL awards_3_program_manager String Dr Simone Metz
attribute NC_GLOBAL awards_3_program_manager_nid String 51479
attribute NC_GLOBAL awards_4_award_nid String 750441
attribute NC_GLOBAL awards_4_award_number String OCE-1559215
attribute NC_GLOBAL awards_4_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1559215 (external link)
attribute NC_GLOBAL awards_4_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_4_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_4_funding_source_nid String 355
attribute NC_GLOBAL awards_4_program_manager String Dr Simone Metz
attribute NC_GLOBAL awards_4_program_manager_nid String 51479
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Depth profiles of dissolved O2 saturation and isotopologues \n  PI: Laurence Yeung \n  Version: 2018-11-30
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 2019-01-23T19:38:07Z
attribute NC_GLOBAL date_modified String 2019-12-05T14:16:36Z
attribute NC_GLOBAL defaultDataQuery String &amp;time&lt;now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.753594.1
attribute NC_GLOBAL Easternmost_Easting double -118.4
attribute NC_GLOBAL geospatial_lat_max double 60.0
attribute NC_GLOBAL geospatial_lat_min double 22.75
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -118.4
attribute NC_GLOBAL geospatial_lon_min double -158.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 3004.0
attribute NC_GLOBAL geospatial_vertical_min double 5.0
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/753594 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Niskin bottle
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Seawater was sampled from Niskin bottles associated with CTD casts on each cruise.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 753610
attribute NC_GLOBAL instruments_0_description String A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends.  The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD.  Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Niskin bottle
attribute NC_GLOBAL instruments_0_instrument_nid String 413
attribute NC_GLOBAL instruments_0_supplied_name String Niskin bottles
attribute NC_GLOBAL instruments_1_acronym String Mass Spec
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Isotopologue analyses were performed on a custom Nu Instruments Perspective IS high-resolution isotope ratio mass spectrometer at Rice University.
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 753609
attribute NC_GLOBAL instruments_1_description String General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Mass Spectrometer
attribute NC_GLOBAL instruments_1_instrument_nid String 685
attribute NC_GLOBAL instruments_1_supplied_name String mass spectrometer
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, d17, D17O, d18, d18O, d35, d36, data, dataset, date, depth, description, dmo, erddap, latitude, longitude, management, O2, O2_O2sat, o2sat, oceanography, office, oxygen, preliminary
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/753594/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/753594 (external link)
attribute NC_GLOBAL Northernmost_Northing double 60.0
attribute NC_GLOBAL param_mapping String {'753594': {'Latitude': 'flag - latitude', 'Depth': 'flag - depth', 'Longitude': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/753594/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Rice University
attribute NC_GLOBAL people_0_person_name String Laurence Yeung
attribute NC_GLOBAL people_0_person_nid String 750420
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 University of Southern California
attribute NC_GLOBAL people_1_affiliation_acronym String USC
attribute NC_GLOBAL people_1_person_name String William M. Berelson
attribute NC_GLOBAL people_1_person_nid String 50600
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 California-Los Angeles
attribute NC_GLOBAL people_2_affiliation_acronym String UCLA
attribute NC_GLOBAL people_2_person_name String Dr Edward Young
attribute NC_GLOBAL people_2_person_nid String 555513
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 Rice University
attribute NC_GLOBAL people_3_person_name String Huanting Hu
attribute NC_GLOBAL people_3_person_nid String 783415
attribute NC_GLOBAL people_3_role String Scientist
attribute NC_GLOBAL people_3_role_type String originator
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 Mathew Biddle
attribute NC_GLOBAL people_4_person_nid String 708682
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 O2 isotopologues in the N. Pacific,CDISK 4
attribute NC_GLOBAL projects_0_acronym String O2 isotopologues in the N. Pacific
attribute NC_GLOBAL projects_0_description String NSF Abstact:\nMarine oxygen is strongly linked to the cycling of organic matter in the marine environment, and as such, its budget is central to addressing many of the outstanding questions in oceanography. In this study, researchers will measure the amounts of three isotopes of oxygen that can combine to make up the molecular oxygen gas dissolved in oceanic waters. When oxygen reacts with other substances, the three isotopes can behave in slightly different ways depending on the type of reactions; this makes it possible to identify the kinds of processes that have led to the existence of the oxygen found at different places in the ocean. These results are expected to yield new insights into how oxygen interacts with organisms, organic matter, minerals, and other substances under a variety marine environmental conditions, with important implications for future studies of ocean productivity and hypoxic (low oxygen) zones in the ocean. A female graduate student will gain hands-on experience with these new methods, and results from the research will be disseminated to the general public through social media and a video.\nIn this project, researchers will make simultaneous measurements of five stable isotopic variants of O2, known as quintuple-isotopologue analysis, to provide new constraints on marine oxygen cycling. Using a combined field and experimental study they will evaluate the potential for the quintuple-isotopologue method to trace marine O2 cycling. Utilizing these novel analytical methods, they will analyze depth profiles and dark bottle incubations of O2 isotopologues in the water column at San Pedro Ocean Time Series (SPOT). These measurements, combined with nutrient profiles and complementary laboratory experiments, will yield a first-order understanding of how photosynthesis, respiration, and mixing affect the isotopologue composition of dissolved marine O2.
attribute NC_GLOBAL projects_0_end_date String 2015-03
attribute NC_GLOBAL projects_0_geolocation String San Pedro Ocean Time Series (33.5 N 118.4 W)
attribute NC_GLOBAL projects_0_name String Collaborative Research:  New Constraints on Marine Oxygen Cycling
attribute NC_GLOBAL projects_0_project_nid String 750418
attribute NC_GLOBAL projects_0_start_date String 2014-09
attribute NC_GLOBAL projects_1_acronym String CDISK 4
attribute NC_GLOBAL projects_1_description String NSF Abstract:\nOcean acidification (OA) is the decrease in seawater pH due to increased oceanic uptake of anthropogenic carbon dioxide (CO2) from the atmosphere. The impact of this uptake in the marine environment is lessened by the dissolution of calcium carbonate (CaCO3) to calcium and carbonate ions, allowing carbonate ions to bind free hydrogen ions that cause the decrease in pH. Researchers from the University of Southern California and California Institute of Technology have developed a new method for determining carbonate dissolution rates that work in both laboratory and field settings. Preliminary data using this technique has revealed a distinct difference in measured rates between those obtained in the laboratory and those in the field. It is crucial that laboratory and field measurements be standardized to be able to accurately study and compare dissolution rate studies. As such, the researchers will perform extensive fieldwork and laboratory to bridge the gap between these dissolution rate measurements. Results will be widely useful to the ocean chemistry community, especially modelers, wishing to study any aspect of ocean carbonate chemistry, as well as paleoceanographers using carbonate material to study past ocean conditions. Graduate students will be co-mentored by the researchers, and the University of Southern California?s (USC) Young Researcher Program will allow the researchers to involve local high school students. USC International Relations students will be involved in the project, not only gaining scientific experience, but also will learn the policy aspect of the science.\nCalcium carbonate (CaCO3) dissolution helps to mitigate the effects of ocean acidification (OA) and is a key factor in the ocean?s alkalinity balance. The researchers have recently developed a novel tracer methodology which can monitor carbonate dissolution rates in both the lab and field. This method traces the transfer of 13C from labeled solids to seawater. Using this method has led to breakthroughs in understanding the controls of CaCO3 dissolution kinetics, but it has also revealed that the measurements made in a lab and in the field are not entirely in line. It is crucial to be able to correlate these two measurements to be able to fully study and understand the dynamics of CaCO3 dissolution. Therefore, the researchers will extend their previous work to standardize the results of measurements in the lab with those in the ocean. The North Pacific Ocean with a gradient in carbonate saturation states will be used for the field study, and lab-based experiments will allow the researchers to constrain variables such as pressure, the dissolved inorganic carbon/alkalinity ratio, and concentrations of phosphate. This research will further understanding of OA, the mechanisms controlling carbonate dissolution, and how the ocean modulates its alkalinity budget.
attribute NC_GLOBAL projects_1_end_date String 2020-03
attribute NC_GLOBAL projects_1_geolocation String NE Pacific transect (22.75 N to 60 N, 150-160 W)
attribute NC_GLOBAL projects_1_name String Collaborative Research: CaCO3 Dissolution in the North Pacific Ocean: Comparison of Lab and Field Rates with Biogenic and Abiogenic Carbonates
attribute NC_GLOBAL projects_1_project_nid String 750437
attribute NC_GLOBAL projects_1_start_date String 2016-04
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 22.75
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Seawater was sampled from Niskin bottles associated with CTD casts on each cruise. Water for these dissolved gas isotope samples was the first to be sampled from a given Niskin bottle. When possible, bottles from the same cast were sampled, but depth profiles often came from separate casts at the same site.
attribute NC_GLOBAL title String [dissolved O2] - Depth profiles of dissolved O2 saturation and isotopologues from the R/V Yellowfin and R/V Kilo Moana from 2016-09-14 to 2017-08-28 (Collaborative Research:  New Constraints on Marine Oxygen Cycling)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -158.0
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable description String
attribute description bcodmo_name String site_descrip
attribute description description String description of the site
attribute description long_name String Description
attribute description units String unitless
variable date int
attribute date _FillValue int 2147483647
attribute date actual_range int 20160914, 20170828
attribute date bcodmo_name String date
attribute date description String date of observation in 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 latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 22.75, 60.0
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
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 -158.0, -118.4
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
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 5.0, 3004.0
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 niskin bottle closing depth
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 O2_O2sat float
attribute O2_O2sat _FillValue float NaN
attribute O2_O2sat actual_range float 0.063, 1.118
attribute O2_O2sat bcodmo_name String O2sat
attribute O2_O2sat description String Dissolved O2 saturation
attribute O2_O2sat long_name String O2 O2sat
attribute O2_O2sat units String unitless
variable d18O float
attribute d18O _FillValue float NaN
attribute d18O actual_range float -1.921, 18.315
attribute d18O bcodmo_name String delta18O
attribute d18O description String 18O value of O2 relative to air-O2
attribute d18O long_name String D18 O
attribute d18O units String parts per thousand
variable D17O float
attribute D17O _FillValue float NaN
attribute D17O actual_range float 21.308, 159.091
attribute D17O bcodmo_name String delta17O
attribute D17O description String 17Δ value of O2 relative to air-O2; λ = 0.518
attribute D17O long_name String D17 O
attribute D17O units String parts per million
variable D35 float
attribute D35 _FillValue float NaN
attribute D35 actual_range float 0.689, 2.026
attribute D35 bcodmo_name String dissolved Oxygen
attribute D35 description String 35 value of O2
attribute D35 long_name String D35
attribute D35 units String parts per thousand
variable D36 float
attribute D36 _FillValue float NaN
attribute D36 actual_range float 1.191, 3.145
attribute D36 bcodmo_name String dissolved Oxygen
attribute D36 description String 36 value of O2
attribute D36 long_name String D36
attribute D36 units String parts per thousand

 
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