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Dataset Title:	[GP16 Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES East Pacific Zonal Transect cruise from R/V Thomas G. Thompson TN303 in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_502618)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
GEOTRC_EVENTNO (integer)	!= =~ <= >= = < >		!= =~ <= >= = < >		4001	4483
LOCATION (text)	!= =~ <= >= = < >		!= =~ <= >= = < >		"R3 > Stn1"	"station 7"
DATE_START (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		20131026	20131220
TIME_START (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0002"	"NaN"
time (ISO DATETIME START, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2013-10-26T13:59:00Z
DATE_END (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		20131026	20131220
TIME_END (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0000"	"NaN"
ISO_DATETIME_END (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"2013-10-26T14:31:0..."	"NaN"
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		-17.60917	-4.0701
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-152.11975	-77.376
LAT_DEG_S (Latitude, degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		4	17
LAT_MIN_S (Latitude, dec_mins)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	59.999
LON_DEG_W (Longitude, degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		77	152
LON_MIN_W (Longitude, dec_mins)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	59.994
DEPTH_MIN (Depth, meters)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0"	"NaN"
depth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.0	5540.0
EVENT_DESCRIPTION (text)	!= =~ <= >= = < >		!= =~ <= >= = < >		"30-ODF"	"mid-GeoF"
SAMPLES_TAKEN (text)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Argo"	"unfilt"
GEOTRACES_ID_NUMBER_RANGE (text)	!= =~ <= >= = < >		!= =~ <= >= = < >		"10011-10022"	"NaN"
COMMENT (text)	!= =~ <= >= = < >		!= =~ <= >= = < >		"3 day aerosol samp..."	"underway=soot cont..."

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" GEOTRC_EVENTNO LOCATION DATE_START TIME_START time DATE_END TIME_END ISO_DATETIME_END latitude longitude LAT_DEG_S LAT_MIN_S LON_DEG_W LON_MIN_W DEPTH_MIN depth EVENT_DESCRIPTION SAMPLES_TAKEN GEOTRACES_ID_NUMBER_RANGE COMMENT GEOTRC_EVENTNO LOCATION DATE_START TIME_START time DATE_END TIME_END ISO_DATETIME_END latitude longitude LAT_DEG_S LAT_MIN_S LON_DEG_W LON_MIN_W DEPTH_MIN depth EVENT_DESCRIPTION SAMPLES_TAKEN GEOTRACES_ID_NUMBER_RANGE COMMENT GEOTRC_EVENTNO LOCATION DATE_START TIME_START time DATE_END TIME_END ISO_DATETIME_END latitude longitude LAT_DEG_S LAT_MIN_S LON_DEG_W LON_MIN_W DEPTH_MIN depth EVENT_DESCRIPTION SAMPLES_TAKEN GEOTRACES_ID_NUMBER_RANGE COMMENT GEOTRC_EVENTNO LOCATION DATE_START TIME_START time DATE_END TIME_END ISO_DATETIME_END latitude longitude LAT_DEG_S LAT_MIN_S LON_DEG_W LON_MIN_W DEPTH_MIN depth EVENT_DESCRIPTION SAMPLES_TAKEN GEOTRACES_ID_NUMBER_RANGE COMMENT GEOTRC_EVENTNO LOCATION DATE_START TIME_START time DATE_END TIME_END ISO_DATETIME_END latitude longitude LAT_DEG_S LAT_MIN_S LON_DEG_W LON_MIN_W DEPTH_MIN depth EVENT_DESCRIPTION SAMPLES_TAKEN GEOTRACES_ID_NUMBER_RANGE COMMENT ")

File type: (more information) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  GEOTRC_EVENTNO {
    Int16 _FillValue 32767;
    Int16 actual_range 4001, 4483;
    String bcodmo_name "event";
    String description "event number";
    String long_name "GEOTRC EVENTNO";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
    String units "integer";
  }
  LOCATION {
    String bcodmo_name "Site_Desig";
    String description "location descriptor (typically station id)";
    String long_name "LOCATION";
    String units "text";
  }
  DATE_START {
    Int32 _FillValue 2147483647;
    Int32 actual_range 20131026, 20131220;
    String bcodmo_name "date_start";
    String description "Start date (GMT) in the format YYYYMMDD";
    String long_name "DATE START";
    String units "unitless";
  }
  TIME_START {
    String bcodmo_name "time_start";
    String description "Start time (GMT) in the format HHMM";
    String long_name "TIME START";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.38279594e+9, NaN;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "Start date/time (ISO formatted)";
    String ioos_category "Time";
    String long_name "ISO DATETIME START";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  DATE_END {
    Int32 _FillValue 2147483647;
    Int32 actual_range 20131026, 20131220;
    String bcodmo_name "date_end";
    String description "End date (GMT) in the format YYYYMMDD";
    String long_name "DATE END";
    String units "unitless";
  }
  TIME_END {
    String bcodmo_name "time_end";
    String description "End time (GMT) in the format HHMM";
    String long_name "TIME END";
    String units "unitless";
  }
  ISO_DATETIME_END {
    String bcodmo_name "ISO_DateTime_UTC";
    String description "End date/time (ISO formatted) in the format YYYY-MM-DDTHH:MM:SS[.xx]Z";
    String long_name "ISO DATETIME END";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -17.60917, -4.0701;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude (South is negative)";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -152.11975, -77.376;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude (West is negative)";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
  LAT_DEG_S {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 4, 17;
    String bcodmo_name "lat_degs";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude Degrees South";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees";
  }
  LAT_MIN_S {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 59.999;
    String bcodmo_name "lat_mins";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude Minutes South";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "dec_mins";
  }
  LON_DEG_W {
    Int16 _FillValue 32767;
    Int16 actual_range 77, 152;
    String bcodmo_name "lon_degs";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude Degrees West";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees";
  }
  LON_MIN_W {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 59.994;
    String bcodmo_name "lon_mins";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude Minutes West";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "dec_mins";
  }
  DEPTH_MIN {
    String bcodmo_name "depth_min";
    String description "Minimum depth";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 5540.0;
    String axis "Z";
    String bcodmo_name "depth_max";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "Maximum depth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  EVENT_DESCRIPTION {
    String bcodmo_name "ev_type";
    String description 
"Event Description
Event Description Codes (Code = Event Description):
nd = unknown/not entered
30-ODF = 30L Niskin Rosette
Be-7 = Be-7
GT-C = GEOTRACES carousel
GeoF = GeoFish w/ Event # only; TM dissolved; unfiltered
mid-GeoF = GeoFish w/ GEOTRACES #; TM diss/uf; Nuts; nanoNuts; As; Alk Phosphatase
Super-GeoF = GeoFish Station sampling: TM diss/uf; Nuts; NanoNuts; As; Alk Phos; Se; WML; A. Shiller
RaPUW = Radium UW pump
MITv2 = MIT-vane
UAFv = UAF-vane
KnoR = Knorr rosette
MastUp = NASA solar reference mast UP
MastDown = NASA solar reference mast DOWN
McL-Ros = McLane pump rosette
McL-Prof = McLane pump profile
Aeros = Aerosol sampler
Argo = Argo Float deployment
AOP = Apparent Optical Properties cast
NASAsurf = NASA surface pump water sample
NEMO = NEMO Float Deployment
Ra/Th/Pig = Ra/Th/Pigment Niskin Cast
Surf Ra bag = Surface Ra bag
Rain = Rain sample";
    String long_name "EVENT DESCRIPTION";
    String units "text";
  }
  SAMPLES_TAKEN {
    String bcodmo_name "sample_descrip";
    String description 
"Samples Taken
Codes for Samples Taken:
nd = unknown/not recorded
diss = dissolved samples
diss+part = dissolved and particulate samples
unfilt = unfiltered seawater
filter = filter for particulates
diss+ UF = Dissolved TM, Mn; Unfiltered TM
Argo = Argo Float deployment
none = none";
    String long_name "SAMPLES TAKEN";
    String units "text";
  }
  GEOTRACES_ID_NUMBER_RANGE {
    String bcodmo_name "sample";
    String description "GEOTRACES ID Number and Range";
    String long_name "GEOTRACES ID NUMBER RANGE";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
    String units "text";
  }
  COMMENT {
    String bcodmo_name "comment";
    String description "Event comment";
    String long_name "COMMENT";
    String units "text";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"Generated aboard vessel by science party.
 
Event Description Codes:  
 Code = Event descripton  
 nd = unknown/not entered  
 30-ODF = 30L Niskin Rosette  
 Be-7 = Be-7  
 GT-C = GEOTRACES carousel  
 GeoF = GeoFish w/ Event # only; TM dissolved; unfiltered  
 mid-GeoF = GeoFish w/ GEOTRACES #; TM diss/uf; Nuts; nanoNuts; As; Alk
Phosphatase  
 Super-GeoF = GeoFish Station sampling: TM diss/uf; Nuts; NanoNuts; As; Alk
Phos; Se; WML; A. Shiller  
 RaPUW = Radium UW pump  
 MITv2 = MIT-vane  
 UAFv = UAF-vane  
 KnoR = Knorr rosette  
 MastUp = NASA solar reference mast UP  
 MastDown = NASA solar reference mast DOWN  
 McL-Ros = McLane pump rosette  
 McL-Prof = McLane pump profile  
 Aeros = Aerosol sampler  
 Argo = Argo Float deployment  
 AOP = Apparent Optical Properties cast  
 NASAsurf = NASA surface pump water sample  
 NEMO = NEMO Float Deployment  
 Ra/Th/Pig = Ra/Th/Pigment Niskin Cast  
 Surf Ra bag = Surface Ra bag  
 Rain = Rain sample  
 \\u00a0\\u00a0 \\u00a0\\u00a0 \\u00a0\\u00a0  
Codes for Samples Taken  
 nd = unknown/not recorded  
 diss = dissolved samples  
 diss+part = dissolved and particulate samples  
 unfilt = unfiltered seawater  
 filter = filter for particulates  
 diss+ UF = Dissolved TM, Mn; Unfiltered TM  
 Argo = Argo Float deployment  
 none = none";
    String awards_0_award_nid "502593";
    String awards_0_award_number "OCE-1235248";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1235248&HistoricalAwards=false";
    String awards_0_funder_name "NSF Division of Ocean Sciences";
    String awards_0_funding_acronym "NSF OCE";
    String awards_0_funding_source_nid "355";
    String awards_0_program_manager "Donald L. Rice";
    String awards_0_program_manager_nid "51467";
    String awards_1_award_nid "502594";
    String awards_1_award_number "OCE-1130870";
    String awards_1_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1130870&HistoricalAwards=false";
    String awards_1_funder_name "NSF Division of Ocean Sciences";
    String awards_1_funding_acronym "NSF OCE";
    String awards_1_funding_source_nid "355";
    String awards_1_program_manager "Henrietta N Edmonds";
    String awards_1_program_manager_nid "51517";
    String cdm_data_type "Other";
    String comment 
"GEOTRACES EPZT 
  Scientific Sampling Event Log 
  PIs: Moffett, et al 
  Version: 30 October 2014";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String date_created "2014-02-27T16:08:47Z";
    String date_modified "2020-04-16T18:27:39Z";
    String defaultDataQuery "&time<now";
    String doi "10.26008/1912/bco-dmo.502618.1";
    Float64 Easternmost_Easting -77.376;
    Float64 geospatial_lat_max -4.0701;
    Float64 geospatial_lat_min -17.60917;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -77.376;
    Float64 geospatial_lon_min -152.11975;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 5540.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-22T01:11:22Z (local files)
2024-12-22T01:11:22Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_502618.html";
    String infoUrl "https://www.bco-dmo.org/dataset/502618";
    String institution "BCO-DMO";
    String keywords "bco, bco-dmo, biological, chemical, comment, data, dataset, date, DATE_END, DATE_START, datetime, depth, DEPTH_MAX, DEPTH_MIN, description, dmo, end, erddap, event, EVENT_DESCRIPTION, eventno, geotraces, GEOTRACES_ID_NUMBER_RANGE, geotrc, GEOTRC_EVENTNO, iso, ISO_DATETIME_END, ISO_DATETIME_START, LAT_DEG_S, LAT_MIN_S, latitude, LOCATION, LON_DEG_W, LON_MIN_W, longitude, management, number, oceanography, office, preliminary, range, samples, SAMPLES_TAKEN, start, taken, time, TIME_END, TIME_START";
    String license "https://www.bco-dmo.org/dataset/502618/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/502618";
    Float64 Northernmost_Northing -4.0701;
    String param_mapping "{'502618': {'LATITUDE': 'flag - latitude', 'DEPTH_MAX': 'flag - depth', 'ISO_DATETIME_START': 'flag - time', 'LONGITUDE': 'flag - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/502618/parameters";
    String people_0_affiliation "University of Southern California";
    String people_0_affiliation_acronym "USC-HIMS";
    String people_0_person_name "James W. Moffett";
    String people_0_person_nid "50800";
    String people_0_role "Lead Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Old Dominion University";
    String people_1_affiliation_acronym "ODU";
    String people_1_person_name "Gregory Cutter";
    String people_1_person_nid "50679";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "Woods Hole Oceanographic Institution";
    String people_2_affiliation_acronym "WHOI";
    String people_2_person_name "Christopher R. German";
    String people_2_person_nid "51700";
    String people_2_role "Co-Principal Investigator";
    String people_2_role_type "originator";
    String people_3_affiliation "University of Southern California";
    String people_3_affiliation_acronym "USC-HIMS";
    String people_3_person_name "James W. Moffett";
    String people_3_person_nid "50800";
    String people_3_role "Contact";
    String people_3_role_type "related";
    String people_4_affiliation "Woods Hole Oceanographic Institution";
    String people_4_affiliation_acronym "WHOI BCO-DMO";
    String people_4_person_name "Stephen R. Gegg";
    String people_4_person_nid "50910";
    String people_4_role "BCO-DMO Data Manager";
    String people_4_role_type "related";
    String project "U.S. GEOTRACES EPZT";
    String projects_0_acronym "U.S. GEOTRACES EPZT";
    String projects_0_description 
"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]";
    String projects_0_end_date "2015-06";
    String projects_0_geolocation "Eastern Tropical Pacific - Transect from Peru to Tahiti";
    String projects_0_name "U.S. GEOTRACES East Pacific Zonal Transect";
    String projects_0_project_nid "499723";
    String projects_0_project_website "https://www.geotraces.org/";
    String projects_0_start_date "2012-06";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -17.60917;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Scientific Sampling Event Log for TN303 (GEOTRACES EPZT). Station numbers, Events, Dates/Times, Lat/Lons and Event descriptions are provided for each station.";
    String time_coverage_start "2013-10-26T13:59:00Z";
    String title "[GP16 Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES East Pacific Zonal Transect cruise from R/V Thomas G. Thompson TN303 in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)";
    String version "1";
    Float64 Westernmost_Easting -152.11975;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP Data Access Protocol (DAP) and its selection constraints.

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

• (easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
• (easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
• (not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

 

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