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   set  data   graph     files  public Results from Optimum Multiparameter Water Mass Analysis (OMPA) obtained using temperature,
salinity, nutrient, and oxygen data from R/V Thomas G. Thompson cruise TN303 in the Eastern
Tropical Pacific from October to December 2013
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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 We use the Optimum Multiparameter Analysis (OMPA) method to determine water
mass percentages along the GP16 transect. This involves the use of
hydrographic measurements from GP16 (temperature, salinity, oxygen, and
nutrients), which can be found in a separate BCO-DMO dataset (see [CTD - ODF
Bottle](\\"https://www.bco-dmo.org/dataset/503145\\")). For samples having
potential density anomalies greater than 27 kg m-3, the OMPA was conducted
according to the procedure outlined by Tomczak (1981), Tomczak and Large
(1989), and others. For samples in the thermocline, defined as those samples
having densities between 26 and 27, we use the 'thermocline array' method to
determine the water mass fractions, according to the procedure outlined by
Jenkins et al. (2015). Samples having densities less than 26 kg m-3 were not
included in the water mass analysis. The uncertainty in water mass percentage
is calculated using a Monte Carlo routine, where the defined properties of
each water mass are varied to encompass the reported range of properties in
that water mass. Lastly, the signal to noise ratio is calculated by dividing
the percentage of given water mass in a each sample by the uncertainty of that
water mass.
attribute NC_GLOBAL awards_0_award_nid String 502594
attribute NC_GLOBAL awards_0_award_number String OCE-1130870
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1130870&HistoricalAwards=false (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 awards_1_award_nid String 650089
attribute NC_GLOBAL awards_1_award_number String OCE-1233339
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1233339 (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 663603
attribute NC_GLOBAL awards_2_award_number String OCE-1232991
attribute NC_GLOBAL awards_2_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1232991 (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 713011
attribute NC_GLOBAL awards_3_award_number String OCE-1130245
attribute NC_GLOBAL awards_3_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1130245 (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 Henrietta N Edmonds
attribute NC_GLOBAL awards_3_program_manager_nid String 51517
attribute NC_GLOBAL awards_4_award_nid String 713016
attribute NC_GLOBAL awards_4_award_number String OCE-1233028
attribute NC_GLOBAL awards_4_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1233028 (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 Henrietta N Edmonds
attribute NC_GLOBAL awards_4_program_manager_nid String 51517
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Water Mass Percentages for GP16
PI: Karen Casciotti (Stanford University)
Co-PIs: William Jenkins (WHOI), James Swift (UCSD), Christopher German (WHOI),
James Moffett (USC), Gregory Cutter (ODU), & Mark Brzezinski (UCSB)
Version: 17 August 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 dataset_current_state String Final and no updates
attribute NC_GLOBAL date_created String 2017-08-17T19:24:02Z
attribute NC_GLOBAL date_modified String 2020-07-23T15:27:29Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.713003.1
attribute NC_GLOBAL Easternmost_Easting double -77.38
attribute NC_GLOBAL geospatial_lat_max double -10.25
attribute NC_GLOBAL geospatial_lat_min double -16.0
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -77.38
attribute NC_GLOBAL geospatial_lon_min double -152.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 5505.2
attribute NC_GLOBAL geospatial_vertical_min double 15.1
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/713003 (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_nid String 714095
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_1_acronym String CTD SBE 911plus
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 714094
attribute NC_GLOBAL instruments_1_description String The Sea-Bird SBE 911plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9plus and SBE 11plus is called a SBE 911plus. The SBE 9plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3plus and SBE 4). The SBE 9plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String CTD Sea-Bird SBE 911plus
attribute NC_GLOBAL instruments_1_instrument_nid String 591
attribute NC_GLOBAL keywords String aabw, AABW_PCT, AABW_STN, AABW_UNCT, aaiw, AAIW_PCT, AAIW_STN, AAIW_UNCT, bco, bco-dmo, biological, btl, BTL_LAT, BTL_LON, btlnbr, BTLNBR_FLAG_W, castno, chemical, cruise, cruise_id, ctddepth, ctdprs, data, dataset, datetime, dmo, eqpiw, EQPIW_PCT, EQPIW_STN, EQPIW_UNCT, erddap, espiw, ESPIW_PCT, ESPIW_STN, ESPIW_UNCT, essw, ESSW_PCT, ESSW_STN, ESSW_UNCT, eventno, flag, geotrc, GEOTRC_EVENTNO, GEOTRC_INSTR, GEOTRC_SAMPNO, instr, iso, latitude, lcdw, LCDW_PCT, LCDW_STN, LCDW_UNCT, longitude, management, oceanography, office, pct, pdw, PDW_PCT, PDW_STN, PDW_UNCT, preliminary, sampno, spcw, SPCW_PCT, SPCW_STN, SPCW_UNCT, stn, stnnbr, time, total, ucdw, UCDW_PCT, UCDW_STN, UCDW_UNCT, unct, w
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/713003/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/713003 (external link)
attribute NC_GLOBAL Northernmost_Northing double -10.25
attribute NC_GLOBAL param_mapping String {'713003': {'BTL_ISO_DATETIME_UTC': 'flag - time', 'LONGITUDE': 'flag - longitude', 'CTDDEPTH': 'flag - depth', 'LATITUDE': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/713003/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Stanford University
attribute NC_GLOBAL people_0_person_name String Karen L. Casciotti
attribute NC_GLOBAL people_0_person_nid String 50980
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 California-Santa Barbara
attribute NC_GLOBAL people_1_affiliation_acronym String UCSB
attribute NC_GLOBAL people_1_person_name String Mark A. Brzezinski
attribute NC_GLOBAL people_1_person_nid String 50663
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 Old Dominion University
attribute NC_GLOBAL people_2_affiliation_acronym String ODU
attribute NC_GLOBAL people_2_person_name String Gregory Cutter
attribute NC_GLOBAL people_2_person_nid String 50679
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI
attribute NC_GLOBAL people_3_person_name String Christopher R. German
attribute NC_GLOBAL people_3_person_nid String 51700
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
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
attribute NC_GLOBAL people_4_person_name String William J. Jenkins
attribute NC_GLOBAL people_4_person_nid String 50745
attribute NC_GLOBAL people_4_role String Co-Principal Investigator
attribute NC_GLOBAL people_4_role_type String originator
attribute NC_GLOBAL people_5_affiliation String University of Southern California
attribute NC_GLOBAL people_5_affiliation_acronym String USC
attribute NC_GLOBAL people_5_person_name String James W. Moffett
attribute NC_GLOBAL people_5_person_nid String 50800
attribute NC_GLOBAL people_5_role String Co-Principal Investigator
attribute NC_GLOBAL people_5_role_type String originator
attribute NC_GLOBAL people_6_affiliation String University of California-San Diego
attribute NC_GLOBAL people_6_affiliation_acronym String UCSD-SIO
attribute NC_GLOBAL people_6_person_name String James H. Swift
attribute NC_GLOBAL people_6_person_nid String 50861
attribute NC_GLOBAL people_6_role String Co-Principal Investigator
attribute NC_GLOBAL people_6_role_type String originator
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 Shannon Rauch
attribute NC_GLOBAL people_7_person_nid String 51498
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 U.S. GEOTRACES EPZT,EPZT Nitrogen Isotopes,EPZT Noble Gases He Tritium
attribute NC_GLOBAL projects_0_acronym String U.S. GEOTRACES EPZT
attribute NC_GLOBAL projects_0_description String From the NSF Award Abstract
The mission of the International GEOTRACES Program (www.geotraces.org), of which the U.S. chemical oceanography research community is a founding member, is "to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions" (GEOTRACES Science Plan, 2006). In the United States, ocean chemists are currently in the process of organizing a zonal transect in the eastern tropical South Pacific (ETSP) from Peru to Tahiti as the second cruise of the U.S.GEOTRACES Program. This Pacific section includes a large area characterized by high rates of primary production and particle export in the eastern boundary associated with the Peru Upwelling, a large oxygen minimum zone that is a major global sink for fixed nitrogen, and a large hydrothermal plume arising from the East Pacific Rise. This particular section was selected as a result of open planning workshops in 2007 and 2008, with a final recommendation made by the U.S.GEOTRACES Steering Committee in 2009. It is the first part of a two-stage plan that will include a meridional section of the Pacific from Tahiti to Alaska as a subsequent expedition.
This award provides funding for management of the U.S.GEOTRACES Pacific campaign to a team of scientists from the University of Southern California, Old Dominion University, and the Woods Hole Oceanographic Institution. The three co-leaders will provide mission leadership, essential support services, and management structure for acquiring the trace elements and isotopes samples listed as core parameters in the International GEOTRACES Science Plan, plus hydrographic and nutrient data needed by participating investigators. With this support from NSF, the management team will (1) plan and coordinate the 52-day Pacific research cruise described above; (2) obtain representative samples for a wide variety of trace metals of interest using conventional CTD/rosette and GEOTRACES Sampling Systems; (3) acquire conventional JGOFS/WOCE-quality hydrographic data (CTD, transmissometer, fluorometer, oxygen sensor, etc) along with discrete samples for salinity, dissolved oxygen (to 1 uM detection limits), plant pigments, redox tracers such as ammonium and nitrite, and dissolved nutrients at micro- and nanomolar levels; (4) ensure that proper QA/QC protocols are followed and reported, as well as fulfilling all GEOTRACES Intercalibration protocols; (5) prepare and deliver all hydrographic-type data to the GEOTRACES Data Center (and US data centers); and (6) coordinate cruise communications between all participating investigators, including preparation of a hydrographic report/publication.
Broader Impacts: The project is part of an international collaborative program that has forged strong partnerships in the intercalibration and implementation phases that are unprecedented in chemical oceanography. The science product of these collective missions will enhance our ability to understand how to interpret the chemical composition of the ocean, and interpret how climate change will affect ocean chemistry. Partnerships include contributions to the infrastructure of developing nations with overlapping interests in the study area, in this case Peru. There is a strong educational component to the program, with many Ph.D. students carrying out thesis research within the program.
Figure 1. The 2013 GEOTRACES EPZT Cruise Track. [click on the image to view a larger version]
attribute NC_GLOBAL projects_0_end_date String 2015-06
attribute NC_GLOBAL projects_0_geolocation String Eastern Tropical Pacific - Transect from Peru to Tahiti
attribute NC_GLOBAL projects_0_name String U.S. GEOTRACES East Pacific Zonal Transect
attribute NC_GLOBAL projects_0_project_nid String 499723
attribute NC_GLOBAL projects_0_project_website String http://www.geotraces.org/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2012-06
attribute NC_GLOBAL projects_1_acronym String EPZT Nitrogen Isotopes
attribute NC_GLOBAL projects_1_description String Description from NSF award abstract:
Nitrogen (N) is an essential macronutrient whose availability can limit primary production and the capacity of the biological pump to export carbon from the surface ocean on seasonal, annual, decadal, and millennial timescales. The inventory of fixed (bioavailable) N in the ocean is driven by biological processes such as nitrogen fixation, denitrification, and anaerobic ammonia oxidation (anammox). Water column oxygen deficient zones (ODZs) are important sites for fixed N loss, as well as N2O production, and they are projected to expand and intensify in the coming years as global warming increases ocean stratification and decreases ventilation. It is important to understand the distribution of nitrate, nitrite, and N2O isotopes in relation to current ocean conditions of oxygen and trace element availability order to interpret past and future changes in nitrate signals.
In this project, a team of researchers from Stanford University, University of Massachusetts at Dartmouth, and Brown University will measure the nitrogen- and oxygen-isotopic composition (del15N and del18O) of nitrate, nitrite, and nitrous oxide in seawater samples collected along the GEOTRACES Pacific Peru-Tahiti Section. Values of del15N and del18O will also be measured in nitrate from aerosol and rain samples to inform our interpretation of the N isotope budget and isotopic gradients within the tropical South Pacific. Finally, N2/Ar and N2 del15N will be determined to close the N mass and isotope budgets. Nitrate del15N is a GEOTRACES "core parameter" that will complement other measurements, such as bioactive trace element concentrations and speciation, Si isotope variations, as well as redox and productivity proxies.
The GEOTRACES Peru-Tahiti section provides a rare opportunity to track the fate of the isotopic signals of N loss from one of the largest water column ODZs. Furthermore, little is known about the effect of N recycling through hydrothermal vents on nitrate isotopes in the deep ocean, and this section will allow quantitative tracking of this input. Together, these measurements will yield insight into the relative rates of modern N cycle processes and will provide background information for paleoceanographic applications.
attribute NC_GLOBAL projects_1_end_date String 2017-02
attribute NC_GLOBAL projects_1_geolocation String East Pacific Zonal Transect
attribute NC_GLOBAL projects_1_name String GEOTRACES Peru-Tahiti Nitrogen Isotope Measurements
attribute NC_GLOBAL projects_1_project_nid String 650090
attribute NC_GLOBAL projects_1_start_date String 2013-03
attribute NC_GLOBAL projects_2_acronym String EPZT Noble Gases He Tritium
attribute NC_GLOBAL projects_2_description String The biogeochemical cycling of trace elements and isotopes (TEIs) in the marine environment is an important research area within the context of global change that motivates the International GEOTRACES program. Some trace elements are known to play potentially important roles as micronutrients in biological cycling, particularly in regard to enzymatic and catalytic processes in the marine environment. Radioisotopes, transient tracers, and noble gases are valuable tracers of these and related processes, and of the ocean?s interaction with the atmosphere and the solid earth, which in turn play a role in shaping many trace element distributions within the ocean.
According to the GEOTRACES Science Plan, the guiding mission of the GEOTRACES program is "to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean". The key observational strategy for GEOTRACES is an internationally-coordinated global-scale ocean survey of key TEIs. The second US GEOTRACES section, set for the Eastern South Pacific in 2013, is aimed at the characterization of key processes in an oxygen minimum zone (OMZ), as well as a major abyssal hydrothermal plume extending westward from the East Pacific Rise.
To help achieve these goals, with support from this grant, a research team at the Woods Hole Oceanographic Institution will collaborate with other GEOTRACES investigators on the Eastern South Pacific expedition to measure a suite of tracers useful for interpreting the rest of the synoptic TEI data. Specifically, the team will make measurements of the noble gases, helium isotopes, tritium, and radiocarbon include in order to: (1) quantify ventilation, circulation, and diapycnal mixing in the OMZ to enable estimation of fluxes and transformation rates of key TEIs; (2) determine upwelling rates in the oxygen minimum zone (OMZ) over a range of timescales to constrain the fluxes of biogeochemically important properties; (3) estimate hydrothermal fluxes of key TEIs using 3He as a flux gauge, and also use 3He as a measure of downstream dilution in the hydrothermal plume; (4) use radiocarbon to estimate abyssal remineralization rates for key TEIs; and (5) probe for evidence of off-axis contribution of hydrothermal processes to TEI distribution. The collective effort will allow marine geochemists to understand mechanistically and quantitatively how a variety of physical, chemical, and biological processes join to determine the distribtuion of TEIs in the ocean.
It has been argued that anthropogenic influence on the global cycles of many elements is emerging as significant. As outlined in the International GEOTRACES Science Plan, the broader impacts of this activity include both an important "baseline snapshot" of the biogeochemical state of the oceanic environment, and a quantitative improvement in the characterization and understanding of important processes in the marine environment. Both of these build a foundation for improved models and quantitative predictions of the oceanic response and role in global change and climate, particularly with anthropogenic forcing. For example, recent evidence of "ocean deoxygenation" has profound implications for marine biologic response. In particular, the evolving state of marine OMZs represents an important biogeochemical "climate canary". A key benefit of diagnosing trace metal dynamics and response to changing redox conditions is the improvement in prognostic capabilities of coupled ocean-atmosphere biogeochemical models for global change.
attribute NC_GLOBAL projects_2_end_date String 2016-12
attribute NC_GLOBAL projects_2_geolocation String Oxygen minium zone; East Pacific Rise
attribute NC_GLOBAL projects_2_name String Measurement of Helium Isotopes, Tritium, Noble Gases, and Radiocarbon
attribute NC_GLOBAL projects_2_project_nid String 663604
attribute NC_GLOBAL projects_2_start_date String 2013-01
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 -16.0
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String cruise_id,GEOTRC_INSTR
attribute NC_GLOBAL summary String Results from Optimum Multiparameter Water Mass Analysis (OMPA) obtained using temperature, salinity, nutrient, and oxygen data from R/V Thomas G. Thompson cruise TN303 in the Eastern Tropical Pacific from October to December 2013.
attribute NC_GLOBAL time_coverage_end String 2013-12-18T04:49:00.00Z
attribute NC_GLOBAL time_coverage_start String 2013-10-29T01:56:00.00Z
attribute NC_GLOBAL title String Results from Optimum Multiparameter Water Mass Analysis (OMPA) obtained using temperature, salinity, nutrient, and oxygen data from R/V Thomas G. Thompson cruise TN303 in the Eastern Tropical Pacific from October to December 2013
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -152.0
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5
variable cruise_id   String  
attribute cruise_id bcodmo_name String cruise_id
attribute cruise_id description String Cruise identification
attribute cruise_id long_name String Cruise Id
attribute cruise_id units String unitless
variable GEOTRC_INSTR   String  
attribute GEOTRC_INSTR bcodmo_name String instrument
attribute GEOTRC_INSTR description String Sampling instrument; added from BCO-DMO EPZT master data file
attribute GEOTRC_INSTR long_name String GEOTRC INSTR
attribute GEOTRC_INSTR units String unitless
variable STNNBR   byte  
attribute STNNBR _FillValue byte 127
attribute STNNBR actual_range byte 1, 36
attribute STNNBR bcodmo_name String station
attribute STNNBR description String Station number
attribute STNNBR long_name String STNNBR
attribute STNNBR units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -16.0, -10.25
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 Station latitude (south is 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 longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -152.0, -77.38
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 Station longitude (west is 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 GEOTRC_SAMPNO   short  
attribute GEOTRC_SAMPNO _FillValue short 32767
attribute GEOTRC_SAMPNO actual_range short 2071, 10454
attribute GEOTRC_SAMPNO bcodmo_name String sample
attribute GEOTRC_SAMPNO description String Unique GEOTRACES sample number
attribute GEOTRC_SAMPNO long_name String GEOTRC SAMPNO
attribute GEOTRC_SAMPNO nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute GEOTRC_SAMPNO units String unitless
variable GEOTRC_EVENTNO   short  
attribute GEOTRC_EVENTNO _FillValue short 32767
attribute GEOTRC_EVENTNO actual_range short 4012, 4474
attribute GEOTRC_EVENTNO bcodmo_name String event
attribute GEOTRC_EVENTNO description String GEOTRACES event number; added from BCO-DMO EPZT master data file
attribute GEOTRC_EVENTNO long_name String GEOTRC EVENTNO
attribute GEOTRC_EVENTNO nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute GEOTRC_EVENTNO units String unitless
variable CASTNO   byte  
attribute CASTNO _FillValue byte 127
attribute CASTNO actual_range byte 1, 17
attribute CASTNO bcodmo_name String cast
attribute CASTNO description String Cast number; added from BCO-DMO EPZT master data file
attribute CASTNO long_name String CASTNO
attribute CASTNO units String unitless
variable CTDPRS   float  
attribute CTDPRS _FillValue float NaN
attribute CTDPRS actual_range float 15.2, 5609.2
attribute CTDPRS bcodmo_name String pressure
attribute CTDPRS description String CTD pressure; added from BCO-DMO EPZT master data file
attribute CTDPRS long_name String CTDPRS
attribute CTDPRS nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/ (external link)
attribute CTDPRS units String decibars (db)
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 15.1, 5505.2
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String CTD bottle firing depth; added from BCO-DMO EPZT master data file
attribute depth ioos_category String Location
attribute depth long_name String CTDDEPTH
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 SAMPNO   byte  
attribute SAMPNO _FillValue byte 127
attribute SAMPNO actual_range byte 1, 12
attribute SAMPNO bcodmo_name String bottle
attribute SAMPNO description String Sequential sample number within the cast (usually corresponds to bottle number); added from BCO-DMO EPZT master data file
attribute SAMPNO long_name String SAMPNO
attribute SAMPNO units String unitless
variable BTLNBR   String  
attribute BTLNBR bcodmo_name String bottle
attribute BTLNBR description String Bottle number; typically 1-24; added from BCO-DMO EPZT master data file
attribute BTLNBR long_name String BTLNBR
attribute BTLNBR units String unitless
variable BTLNBR_FLAG_W   byte  
attribute BTLNBR_FLAG_W _FillValue byte 127
attribute BTLNBR_FLAG_W actual_range byte 2, 4
attribute BTLNBR_FLAG_W bcodmo_name String flag
attribute BTLNBR_FLAG_W colorBarMaximum double 150.0
attribute BTLNBR_FLAG_W colorBarMinimum double 0.0
attribute BTLNBR_FLAG_W description String Bottle number quality flag; follows WOCE conventions. 2 = no problems noted; 3 = leaking; 4 = did not trip correctly; 9 = samples not drawn from this bottle. Added from BCO-DMO EPZT master data file
attribute BTLNBR_FLAG_W long_name String BTLNBR FLAG W
attribute BTLNBR_FLAG_W units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.38301176E9, 1.38734214E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date and time, formatted to the ISO 8601 standard, at the time of bottle firing. Format: YYYY-MM-DDTHH:MM:SS[.xx]Z
attribute time ioos_category String Time
attribute time long_name String BTL ISO DATETIME UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String BTL_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 1970-01-01T00:00:00.00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable BTL_LAT   float  
attribute BTL_LAT _FillValue float NaN
attribute BTL_LAT actual_range float -16.0006, -10.25
attribute BTL_LAT bcodmo_name String latitude
attribute BTL_LAT description String Latitude of bottle firing; north is positive. Added from BCO-DMO EPZT master data file
attribute BTL_LAT long_name String BTL LAT
attribute BTL_LAT nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute BTL_LAT units String decimal degrees
variable BTL_LON   float  
attribute BTL_LON _FillValue float NaN
attribute BTL_LON actual_range float -152.0006, -77.3761
attribute BTL_LON bcodmo_name String longitude
attribute BTL_LON description String Lonitude of bottle firing; east is positive. Added from BCO-DMO EPZT master data file
attribute BTL_LON long_name String BTL LON
attribute BTL_LON nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute BTL_LON units String decimal degrees
variable ESSW_PCT   float  
attribute ESSW_PCT _FillValue float NaN
attribute ESSW_PCT actual_range float 0.0, 160.6
attribute ESSW_PCT bcodmo_name String unknown
attribute ESSW_PCT description String the amount of Equatorial Subsurface Water in a sample, in units of percent
attribute ESSW_PCT long_name String ESSW PCT
attribute ESSW_PCT units String percent (%)
variable ESSW_UNCT   float  
attribute ESSW_UNCT _FillValue float NaN
attribute ESSW_UNCT actual_range float 0.0, 64.7
attribute ESSW_UNCT bcodmo_name String unknown
attribute ESSW_UNCT description String the uncertainty in the percent of Equatorial Subsurface Water, in units of percent
attribute ESSW_UNCT long_name String ESSW UNCT
attribute ESSW_UNCT units String percent (%)
variable ESSW_STN   float  
attribute ESSW_STN _FillValue float NaN
attribute ESSW_STN actual_range float 0.0, 7.9
attribute ESSW_STN bcodmo_name String unknown
attribute ESSW_STN description String the signal to noise ratio for Equatorial Subsurface Water
attribute ESSW_STN long_name String ESSW STN
attribute ESSW_STN units String dimensionless
variable ESPIW_PCT   float  
attribute ESPIW_PCT _FillValue float NaN
attribute ESPIW_PCT actual_range float 0.0, 61.9
attribute ESPIW_PCT bcodmo_name String unknown
attribute ESPIW_PCT description String the amount of Eastern South Pacific Intermediate Water, in units of percent
attribute ESPIW_PCT long_name String ESPIW PCT
attribute ESPIW_PCT units String percent (%)
variable ESPIW_UNCT   float  
attribute ESPIW_UNCT _FillValue float NaN
attribute ESPIW_UNCT actual_range float 0.0, 35.1
attribute ESPIW_UNCT bcodmo_name String unknown
attribute ESPIW_UNCT description String the uncertainty of Eastern South Pacific Intermediate Water, in units of percent
attribute ESPIW_UNCT long_name String ESPIW UNCT
attribute ESPIW_UNCT units String percent (%)
variable ESPIW_STN   float  
attribute ESPIW_STN _FillValue float NaN
attribute ESPIW_STN actual_range float 0.0, 4.2
attribute ESPIW_STN bcodmo_name String unknown
attribute ESPIW_STN description String the signal to noise ratio of Eastern South Pacific Intermediate Water
attribute ESPIW_STN long_name String ESPIW STN
attribute ESPIW_STN units String dimensionless
variable SPCW_PCT   float  
attribute SPCW_PCT _FillValue float NaN
attribute SPCW_PCT actual_range float 0.0, 60.7
attribute SPCW_PCT bcodmo_name String unknown
attribute SPCW_PCT description String the amount of South Pacific Central Water in a sample, in units of percent
attribute SPCW_PCT long_name String SPCW PCT
attribute SPCW_PCT units String percent (%)
variable SPCW_UNCT   float  
attribute SPCW_UNCT _FillValue float NaN
attribute SPCW_UNCT actual_range float 0.0, 29.0
attribute SPCW_UNCT bcodmo_name String unknown
attribute SPCW_UNCT description String the uncertainty in South Pacific Central Water, in units of percent
attribute SPCW_UNCT long_name String SPCW UNCT
attribute SPCW_UNCT units String percent (%)
variable SPCW_STN   float  
attribute SPCW_STN _FillValue float NaN
attribute SPCW_STN actual_range float 0.0, 3.4
attribute SPCW_STN bcodmo_name String unknown
attribute SPCW_STN description String the signal to nose ratio of South Pacific Central Water
attribute SPCW_STN long_name String SPCW STN
attribute SPCW_STN units String dimensionless
variable AAIW_PCT   float  
attribute AAIW_PCT _FillValue float NaN
attribute AAIW_PCT actual_range float 0.0, 53.0
attribute AAIW_PCT bcodmo_name String unknown
attribute AAIW_PCT description String the amount of Antarctic Intermediate Water in a sample, in units of percent
attribute AAIW_PCT long_name String AAIW PCT
attribute AAIW_PCT units String percent (%)
variable AAIW_UNCT   float  
attribute AAIW_UNCT _FillValue float NaN
attribute AAIW_UNCT actual_range float 0.0, 22.3
attribute AAIW_UNCT bcodmo_name String unknown
attribute AAIW_UNCT description String the uncertainty of Antarctic Intermediate Water, in units of percent
attribute AAIW_UNCT long_name String AAIW UNCT
attribute AAIW_UNCT units String percent (%)
variable AAIW_STN   float  
attribute AAIW_STN _FillValue float NaN
attribute AAIW_STN actual_range float 0.0, 2.7
attribute AAIW_STN bcodmo_name String unknown
attribute AAIW_STN description String the signal to noise ratio of Antarctic Intermediate Water
attribute AAIW_STN long_name String AAIW STN
attribute AAIW_STN units String dimensionless
variable EQPIW_PCT   float  
attribute EQPIW_PCT _FillValue float NaN
attribute EQPIW_PCT actual_range float 0.0, 113.8
attribute EQPIW_PCT bcodmo_name String unknown
attribute EQPIW_PCT description String the amount of Equatorial Pacific Intermediate Water in a sample, in units of percent
attribute EQPIW_PCT long_name String EQPIW PCT
attribute EQPIW_PCT units String percent (%)
variable EQPIW_UNCT   float  
attribute EQPIW_UNCT _FillValue float NaN
attribute EQPIW_UNCT actual_range float 0.0, 23.4
attribute EQPIW_UNCT bcodmo_name String unknown
attribute EQPIW_UNCT description String the uncertainty in Equatorial Pacific Intermediate Water, in units of percent
attribute EQPIW_UNCT long_name String EQPIW UNCT
attribute EQPIW_UNCT units String percent (%)
variable EQPIW_STN   float  
attribute EQPIW_STN _FillValue float NaN
attribute EQPIW_STN actual_range float 0.0, 4.9
attribute EQPIW_STN bcodmo_name String unknown
attribute EQPIW_STN description String the signal to noise ratio of Equatorial Pacific Intermediate Water
attribute EQPIW_STN long_name String EQPIW STN
attribute EQPIW_STN units String dimensionless
variable UCDW_PCT   float  
attribute UCDW_PCT _FillValue float NaN
attribute UCDW_PCT actual_range float 0.0, 48.1
attribute UCDW_PCT bcodmo_name String unknown
attribute UCDW_PCT description String the amount of Upper Circumpolar Deep Water in a sample, in units of percent
attribute UCDW_PCT long_name String UCDW PCT
attribute UCDW_PCT units String percent (%)
variable UCDW_UNCT   float  
attribute UCDW_UNCT _FillValue float NaN
attribute UCDW_UNCT actual_range float 0.0, 25.5
attribute UCDW_UNCT bcodmo_name String unknown
attribute UCDW_UNCT description String the uncertainty of Upper Circumpolar Deep Water, in units of percent
attribute UCDW_UNCT long_name String UCDW UNCT
attribute UCDW_UNCT units String percent (%)
variable UCDW_STN   float  
attribute UCDW_STN _FillValue float NaN
attribute UCDW_STN actual_range float 0.0, 2.2
attribute UCDW_STN bcodmo_name String unknown
attribute UCDW_STN description String the signal to noise ratio of Upper Circumpolar Deep Water
attribute UCDW_STN long_name String UCDW STN
attribute UCDW_STN units String dimensionless
variable PDW_PCT   float  
attribute PDW_PCT _FillValue float NaN
attribute PDW_PCT actual_range float 0.0, 82.0
attribute PDW_PCT bcodmo_name String unknown
attribute PDW_PCT description String the amount of Pacific Deep Water in a sample, in units of percent
attribute PDW_PCT long_name String PDW PCT
attribute PDW_PCT units String percent (%)
variable PDW_UNCT   float  
attribute PDW_UNCT _FillValue float NaN
attribute PDW_UNCT actual_range float 0.0, 27.6
attribute PDW_UNCT bcodmo_name String unknown
attribute PDW_UNCT description String the uncertainty of Pacific Deep Water, in units of percent
attribute PDW_UNCT long_name String PDW UNCT
attribute PDW_UNCT units String percent (%)
variable PDW_STN   float  
attribute PDW_STN _FillValue float NaN
attribute PDW_STN actual_range float 0.0, 4.6
attribute PDW_STN bcodmo_name String unknown
attribute PDW_STN description String the signal to noise ratio in Pacific Deep Water
attribute PDW_STN long_name String PDW STN
attribute PDW_STN units String dimensionless
variable LCDW_PCT   float  
attribute LCDW_PCT _FillValue float NaN
attribute LCDW_PCT actual_range float 0.0, 47.7
attribute LCDW_PCT bcodmo_name String unknown
attribute LCDW_PCT description String the amount of Lower Circumpolar Deep Water in a sample, in units of percent
attribute LCDW_PCT long_name String LCDW PCT
attribute LCDW_PCT units String percent (%)
variable LCDW_UNCT   float  
attribute LCDW_UNCT _FillValue float NaN
attribute LCDW_UNCT actual_range float 0.0, 27.5
attribute LCDW_UNCT bcodmo_name String unknown
attribute LCDW_UNCT description String the uncertainty of Lower Circumpolar Deep Water, in units of percent
attribute LCDW_UNCT long_name String LCDW UNCT
attribute LCDW_UNCT units String percent (%)
variable LCDW_STN   float  
attribute LCDW_STN _FillValue float NaN
attribute LCDW_STN actual_range float 0.0, 1.9
attribute LCDW_STN bcodmo_name String unknown
attribute LCDW_STN description String the signal to noise ratio in Lowe Circumpolar Deep Water
attribute LCDW_STN long_name String LCDW STN
attribute LCDW_STN units String dimensionless
variable AABW_PCT   float  
attribute AABW_PCT _FillValue float NaN
attribute AABW_PCT actual_range float 0.0, 52.4
attribute AABW_PCT bcodmo_name String unknown
attribute AABW_PCT description String the amount of Antarctic Bottom Water in a sample, in units of percent
attribute AABW_PCT long_name String AABW PCT
attribute AABW_PCT units String percent (%)
variable AABW_UNCT   float  
attribute AABW_UNCT _FillValue float NaN
attribute AABW_UNCT actual_range float 0.0, 25.3
attribute AABW_UNCT bcodmo_name String unknown
attribute AABW_UNCT description String the uncertainty of Antarctic Bottom Water, in units of percent
attribute AABW_UNCT long_name String AABW UNCT
attribute AABW_UNCT units String percent (%)
variable AABW_STN   float  
attribute AABW_STN _FillValue float NaN
attribute AABW_STN actual_range float 0.0, 2.1
attribute AABW_STN bcodmo_name String unknown
attribute AABW_STN description String the signal to noise ratio in Antarctic Bottom Water
attribute AABW_STN long_name String AABW STN
attribute AABW_STN units String dimensionless
variable total   float  
attribute total _FillValue float NaN
attribute total actual_range float 100.0, 190.9
attribute total bcodmo_name String unknown
attribute total description String Sum of percentages for the sample
attribute total long_name String Total
attribute total units String percent (%)

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