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,.odvTxt
attribute NC_GLOBAL acquisition_description String Samples analyzed for acid-volatile sulfides (AVS) were collected on McLane\npumps suspended from a trace metal wire (Hytrel-jacketed Vectran). Pumps\nfiltered for four hours, flowing first over a 51-\\u00b5m polyester pre-filter,\nthen over paired 0.8-\\u00b5m pore-size, 142-mm Supor polyethersulfone filters.\nA small portion of the top Supor filter, representing ~2% of the filter area\n(0.8-51 \\u00b5m size-fraction material), was sub-sectioned into polyethylene\nvials and frozen at -85\\u02daC until shipboard AVS analysis, described below.\nFilter blanks were held within identical filter housings and submerged on one\nof the deeper pumps on each cast, but were not actively filtered through.\nBlanks were handled identically to samples during processing, which was\nconducted in a HEPA-filtered environment using trace metal procedures.\n \nParticulate elemental samples were collected using McLane in situ pumps (P.\nLam, UCSC) with splits (section) from a 0.8 \\u00b5m Supor filter processed\nimmediately in a N2-purged glove bag after collection and pump recovery;\nfilter splits were placed and sealed in Tedlar bags and stored at -80\\u00b0C\nuntil analysis. Particulate elemental selenium concentrations were determined\nusing a sulfite leach following Velinsky and Cutter (1990) and analyzed like\nselenite+selenate following Cutter (1978).\\u00a0 Precision was ca. 10% RSD\n(n=3).\\u00a0
attribute NC_GLOBAL awards_0_award_nid String 646152
attribute NC_GLOBAL awards_0_award_number String OCE-1235328
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1235328&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 cdm_data_type String Other
attribute NC_GLOBAL comment String Acid-Volatile Sulfide and elemental selenium profiles \n    data from McLane pumps \n    G. Cutter, PI \n   version 03 June 2016 - one set of depths fixed
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 2016-05-19T20:17:52Z
attribute NC_GLOBAL date_modified String 2020-04-16T20:47:31Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.646143.1
attribute NC_GLOBAL Easternmost_Easting double -77.376
attribute NC_GLOBAL geospatial_lat_max double -11.99933
attribute NC_GLOBAL geospatial_lat_min double -16.00058
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -77.376
attribute NC_GLOBAL geospatial_lon_min double -120.00217
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 5500.0
attribute NC_GLOBAL geospatial_vertical_min double 15.0
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/646143 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String McLane Pump
attribute NC_GLOBAL instruments_0_dataset_instrument_description String In the data, McLane pumps are called \"McL-Prof.\"
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 646245
attribute NC_GLOBAL instruments_0_description String McLane pumps sample large volumes of seawater at depth. They are attached to a wire and lowered to different depths in the ocean. As the water is pumped through the filter, particles suspended in the ocean are collected on the filters. The pumps are then retrieved and the contents of the filters are analyzed in a lab.
attribute NC_GLOBAL instruments_0_instrument_name String McLane Pump
attribute NC_GLOBAL instruments_0_instrument_nid String 627
attribute NC_GLOBAL instruments_0_supplied_name String McLane pumps
attribute NC_GLOBAL instruments_1_acronym String Gas Chromatograph
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Gas chromatograph/flame photometric ionizer
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 646246
attribute NC_GLOBAL instruments_1_description String Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB02/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Gas Chromatograph
attribute NC_GLOBAL instruments_1_instrument_nid String 661
attribute NC_GLOBAL instruments_1_supplied_name String Gas chromatograph
attribute NC_GLOBAL keywords String avs, AVS_TP_CONC_PUMP, bco, bco-dmo, biological, castno, chemical, conc, cruise, cruise_id, data, dataset, date, DATE_START_EVENT, datetime, depth, DEPTH_MAX, DEPTH_MIN, depth_n, dmo, erddap, event, EVENT_LAT, EVENT_LON, eventno, expocode, geotrc, GEOTRC_EVENTNO, GEOTRC_INSTR, GEOTRC_SAMPNO, instr, iso, management, oceanography, office, preliminary, pump, sampno, Se_0_TP_CONC_PUMP, sect, SECT_ID, start, stnnbr, time, TIME_START_EVENT
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/646143/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/646143 (external link)
attribute NC_GLOBAL Northernmost_Northing double -11.99933
attribute NC_GLOBAL param_mapping String {'646143': {'ISO_DATETIME_UTC_START_EVENT': 'flag - time', 'EVENT_LAT': 'flag - latitude', 'EVENT_LON': 'flag - longitude', 'depth_n': 'flag - depth'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/646143/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Old Dominion University
attribute NC_GLOBAL people_0_affiliation_acronym String ODU
attribute NC_GLOBAL people_0_person_name String Gregory Cutter
attribute NC_GLOBAL people_0_person_nid String 50679
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Old Dominion University
attribute NC_GLOBAL people_1_affiliation_acronym String ODU
attribute NC_GLOBAL people_1_person_name String Gregory Cutter
attribute NC_GLOBAL people_1_person_nid String 50679
attribute NC_GLOBAL people_1_role String Contact
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Ms Dicky Allison
attribute NC_GLOBAL people_2_person_nid String 50382
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
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 Amber York
attribute NC_GLOBAL people_3_person_nid String 643627
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 U.S. GEOTRACES EPZT,EPZT_Redox_Elements
attribute NC_GLOBAL projects_0_acronym String U.S. GEOTRACES EPZT
attribute NC_GLOBAL projects_0_description String From the NSF Award Abstract\nThe 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.\nThis 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.\nBroader 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.\nFigure 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 https://www.geotraces.org/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2012-06
attribute NC_GLOBAL projects_1_acronym String EPZT_Redox_Elements
attribute NC_GLOBAL projects_1_description String Extracted from the NSF award abstract:\nThe 2013 GEOTRACES Eastern Pacific Zonal Transect from Peru to Tahiti will cross an entensive oxygen deficient zone typically described as \"suboxic\"; however, measurements of sulfate reduction in this region suggest it may have some anoxic characteristics due to the presence of free sulfide. Redox conditions influence the solubility/stability of many trace elements which in turn affects their vertical and horizontal transport. A scientist from Old Dominion University plans to analyze water samples collected during the cruise for dissolved iodate/iodide, arsenic [As(III)/As(V)], selenium [Se(IV, VI), particulate Se(0), and nano- to picomolar hydrogen sulfide speciation (total, free/uncomplexed). These measurements, along with nitrate/nitrite, nitrous oxide, and iron species determined by other participants during the cruise, will be used to constrain the range of redox conditions within the oxygen deficient zone, assess the importance of in-situ reduction versus horizontal advection of the redox species, and the changing redox conditions within the hydrothermal plume of the East Pacific Rise. Availability of this data will also enable other researchers to determine the behavior of other redox sensitive trace elements in the ocean.
attribute NC_GLOBAL projects_1_end_date String 2016-11
attribute NC_GLOBAL projects_1_geolocation String Eastern Pacific
attribute NC_GLOBAL projects_1_name String US GEOTRACES Pacific section: Characterizing the redox environment of the eastern tropical Pacific Ocean
attribute NC_GLOBAL projects_1_project_nid String 647929
attribute NC_GLOBAL projects_1_start_date String 2012-12
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 -16.00058
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String cruise_id,EXPOCODE,SECT_ID,GEOTRC_INSTR
attribute NC_GLOBAL summary String Particulate Acid-Volatile Sulfide (pAVS) and elemental selenium (pSe) concentrations from a McLane pump collected during the R/V Thomas G. Thompson cruise TN303 from Peru to Tahiti in 2013.
attribute NC_GLOBAL time_coverage_end String 2013-11-29T22:11:00.00Z
attribute NC_GLOBAL time_coverage_start String 2013-10-29T03:50:00.00Z
attribute NC_GLOBAL title String [GP16 Elemental selenium and particulate Acid-Volatile Sulfide] - Particulate Acid-Volatile Sulfide (pAVS) and elemental selenium (pSe) concentrations from a McLane pump collected during the R/V Thomas G. Thompson cruise TN303 from Peru to Tahiti in 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -120.00217
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable cruise_id String
attribute cruise_id bcodmo_name String cruise_id
attribute cruise_id description String Cruise identifier. TN = R/V Thomas G. Thompson.
attribute cruise_id long_name String Cruise Id
attribute cruise_id units String unitless
variable EXPOCODE String
attribute EXPOCODE bcodmo_name String EXPOCODE
attribute EXPOCODE description String Used as a unique identifier for a cruise. Usual generation formula is ICES 4 character platform code then the cruise departure date in YYYYMDD format
attribute EXPOCODE long_name String EXPOCODE
attribute EXPOCODE units String unitless
variable SECT_ID String
attribute SECT_ID bcodmo_name String Cruise Name
attribute SECT_ID description String GEOTRACES cruise name.
attribute SECT_ID long_name String SECT ID
attribute SECT_ID units String unitless
variable GEOTRC_INSTR String
attribute GEOTRC_INSTR bcodmo_name String instrument
attribute GEOTRC_INSTR description String Instrument
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, 23
attribute STNNBR bcodmo_name String station
attribute STNNBR description String Station number.
attribute STNNBR long_name String STNNBR
attribute STNNBR units String unitless
variable CASTNO byte
attribute CASTNO _FillValue byte 127
attribute CASTNO actual_range byte 3, 12
attribute CASTNO bcodmo_name String cast
attribute CASTNO description String Cast number.
attribute CASTNO long_name String CASTNO
attribute CASTNO units String unitless
variable GEOTRC_EVENTNO short
attribute GEOTRC_EVENTNO _FillValue short 32767
attribute GEOTRC_EVENTNO actual_range short 4013, 4300
attribute GEOTRC_EVENTNO bcodmo_name String event
attribute GEOTRC_EVENTNO description String GEOTRACES event number.
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 DATE_START_EVENT int
attribute DATE_START_EVENT _FillValue int 2147483647
attribute DATE_START_EVENT actual_range int 20131029, 20131129
attribute DATE_START_EVENT bcodmo_name String date_start
attribute DATE_START_EVENT description String Date at the start of the event, according to the event log. in the format YYYYmmdd
attribute DATE_START_EVENT long_name String DATE START EVENT
attribute DATE_START_EVENT units String unitless
variable TIME_START_EVENT short
attribute TIME_START_EVENT _FillValue short 32767
attribute TIME_START_EVENT actual_range short 45, 2318
attribute TIME_START_EVENT bcodmo_name String time_start
attribute TIME_START_EVENT description String Time at the start of the event according to the event log
attribute TIME_START_EVENT long_name String TIME START EVENT
attribute TIME_START_EVENT units String unitless
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.3830186E9, 1.38576306E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date and time (UTC) at start of the event, formatted to ISO 8601 standard, according to the event log.  Format is YYYY-mm-ddTHH:MM:SS.xxZ.
attribute time ioos_category String Time
attribute time long_name String ISO DATETIME UTC START EVENT
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DATETIME_UTC_START_EVENT
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 latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -16.00058, -11.99933
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude description String Latitude at the start of the event, according to the event log.
attribute latitude ioos_category String Location
attribute latitude long_name String EVENT LAT
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 -120.00217, -77.376
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude description String Longitude according to the event log; West is negative
attribute longitude ioos_category String Location
attribute longitude long_name String EVENT LON
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_MIN short
attribute DEPTH_MIN _FillValue short 32767
attribute DEPTH_MIN actual_range short 15, 2800
attribute DEPTH_MIN bcodmo_name String depth_min
attribute DEPTH_MIN colorBarMaximum double 8000.0
attribute DEPTH_MIN colorBarMinimum double -8000.0
attribute DEPTH_MIN colorBarPalette String TopographyDepth
attribute DEPTH_MIN description String event depth minimum
attribute DEPTH_MIN long_name String Depth
attribute DEPTH_MIN standard_name String depth
attribute DEPTH_MIN units String meters
variable DEPTH_MAX short
attribute DEPTH_MAX _FillValue short 32767
attribute DEPTH_MAX actual_range short 108, 5523
attribute DEPTH_MAX bcodmo_name String depth_max
attribute DEPTH_MAX colorBarMaximum double 8000.0
attribute DEPTH_MAX colorBarMinimum double -8000.0
attribute DEPTH_MAX colorBarPalette String TopographyDepth
attribute DEPTH_MAX description String event depth maxium
attribute DEPTH_MAX long_name String Depth
attribute DEPTH_MAX standard_name String depth
attribute DEPTH_MAX units String meters
variable GEOTRC_SAMPNO short
attribute GEOTRC_SAMPNO _FillValue short 32767
attribute GEOTRC_SAMPNO actual_range short 2083, 9068
attribute GEOTRC_SAMPNO bcodmo_name String sample
attribute GEOTRC_SAMPNO description String 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 SAMPNO short
attribute SAMPNO _FillValue short 32767
attribute SAMPNO actual_range short 301, 1208
attribute SAMPNO bcodmo_name String sample
attribute SAMPNO description String Bottle sample number, according to PI.
attribute SAMPNO long_name String SAMPNO
attribute SAMPNO nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute SAMPNO 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 15.0, 5500.0
attribute depth axis String Z
attribute depth bcodmo_name String depth_n
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String nominal depth
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable AVS_TP_CONC_PUMP float
attribute AVS_TP_CONC_PUMP _FillValue float NaN
attribute AVS_TP_CONC_PUMP actual_range float 0.0, 264.0
attribute AVS_TP_CONC_PUMP bcodmo_name String trace_element_conc
attribute AVS_TP_CONC_PUMP description String particulate acid volatile sulfide
attribute AVS_TP_CONC_PUMP long_name String AVS TP CONC PUMP
attribute AVS_TP_CONC_PUMP units String picomoles per liter
variable Se_0_TP_CONC_PUMP float
attribute Se_0_TP_CONC_PUMP _FillValue float NaN
attribute Se_0_TP_CONC_PUMP actual_range float 0.0, 0.21
attribute Se_0_TP_CONC_PUMP bcodmo_name String trace_element_conc
attribute Se_0_TP_CONC_PUMP description String particulate elemental selenium
attribute Se_0_TP_CONC_PUMP long_name String Se 0 TP CONC PUMP
attribute Se_0_TP_CONC_PUMP units String nanomoles per liter

 
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