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Dataset Title:  Water Chemistry - Jarvis Island Subscribe RSS
Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_775834)
Range: longitude = -160.0789 to -159.937°E, latitude = -0.4269 to -0.3627°N, time = 2012-09-13T07:23:00Z to 2016-05-23T23:33:00Z
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Data Access Form | Files
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  date_UTC {
    String bcodmo_name "date_utc";
    String description "Date in UTC (mm/dd/yyyy)";
    String long_name "Date UTC";
    String time_precision "1970-01-01";
    String units "unitless";
  }
  time_UTC {
    String bcodmo_name "time_utc";
    String description "Time in UTC (hh:mm:ss)";
    String long_name "Time UTC";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -0.4269, -0.3627;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude of sampling location; north = positive";
    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 -160.0789, -159.937;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude of sampling location; east = positive";
    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";
  }
  salinity {
    Float32 _FillValue NaN;
    Float32 actual_range 34.1272, 35.618;
    String bcodmo_name "sal";
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String description "Salinity";
    String long_name "Sea Water Practical Salinity";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/";
    String units "unitless";
  }
  temperature {
    Float32 _FillValue NaN;
    Float32 actual_range 24.32, 32.43;
    String bcodmo_name "temperature";
    String description "Water temperature";
    String long_name "Temperature";
    String units "degrees Celsius";
  }
  pressure {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 20.398885;
    String bcodmo_name "pressure";
    String description "Pressure";
    String long_name "Pressure";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/";
    String units "decibars (dbar)";
  }
  PO4 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.073831, 0.694461;
    String bcodmo_name "PO4";
    String description "Phosphate (PO4---) concentration";
    String long_name "Mass Concentration Of Phosphate In Sea Water";
    String units "micromoles per kilogram (umol/kg)";
  }
  NO3_NO2 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.04, 9.527669;
    String bcodmo_name "NO3_NO2";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String description "Nitrate/nitrite (NO3-/NO2-) concentration";
    String long_name "Mole Concentration Of Nitrate In Sea Water";
    String units "micromoles per kilogram (umol/kg)";
  }
  TALK {
    Float32 _FillValue NaN;
    Float32 actual_range 2256.468, 2352.365;
    String bcodmo_name "TALK";
    String description "Total alkalinity";
    String long_name "TALK";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/";
    String units "micromoles per kilogram (umol/kg)";
  }
  DIC {
    Float32 _FillValue NaN;
    Float32 actual_range 1879.905, 2070.971;
    String bcodmo_name "DIC";
    String description "Dissolved inorganic carbon";
    String long_name "DIC";
    String units "micromoles per kilogram (umol/kg)";
  }
  nTALK {
    Float32 _FillValue NaN;
    Float32 actual_range 2278.289, 2333.103;
    String bcodmo_name "TALK";
    String description "Salinity normalized total alkalinity (to sal = 35)";
    String long_name "N TALK";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/MDMAP014/";
    String units "micromoles per kilogram (umol/kg)";
  }
  nDIC {
    Float32 _FillValue NaN;
    Float32 actual_range 1921.43, 2051.244;
    String bcodmo_name "DIC";
    String description "Salinity normalized dissolved inorganic carbon (to sal = 35)";
    String long_name "N DIC";
    String units "micromoles per kilogram (umol/kg)";
  }
  pH {
    Float32 _FillValue NaN;
    Float32 actual_range 7.944087, 8.136864;
    String bcodmo_name "pH";
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 7.0;
    String description "pH";
    String long_name "Sea Water Ph Reported On Total Scale";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/";
    String units "unitless";
  }
  pCO2 {
    Float32 _FillValue NaN;
    Float32 actual_range 300.5215, 525.8914;
    String bcodmo_name "pCO2";
    String description "Partial pressure of carbon dioxide";
    String long_name "P CO2";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PCO2C101/";
    String units "micro-atmospheres (uatm)";
  }
  bicarbonate {
    Float32 _FillValue NaN;
    Float32 actual_range 1604.571, 1856.398;
    String bcodmo_name "bicarbonate";
    String description "Bicarbonate ion (HCO3-) concentration";
    String long_name "Bicarbonate";
    String units "micromoles per kilogram (umol/kg)";
  }
  carbonate {
    Float32 _FillValue NaN;
    Float32 actual_range 195.7513, 272.735;
    String bcodmo_name "carbonate";
    String description "Carbonate ion (CO32-) concentration";
    String long_name "Carbonate";
    String units "micromoles per kilogram (umol/kg)";
  }
  OM_ar {
    Float32 _FillValue NaN;
    Float32 actual_range 3.128612, 4.447542;
    String bcodmo_name "OM_ar";
    String description "The saturation state of seawater with respect to aragonite.";
    String long_name "OM Ar";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.34752098e+9, 1.46404638e+9;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "Date/Time (UTC) ISO formatted [YYYY-mm-ddTHH:MM:SSZ (UTC time)}";
    String ioos_category "Time";
    String long_name "ISO Date Time UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String source_name "ISO_DateTime_UTC";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"Discrete seawater samples were collected during each sampling period for
salinity, nutrients, total alkalinity (TA), and dissolved inorganic carbon
(DIC). Temperature and depth were recorded with HOBO temperature loggers
(September 2012) and Sensus Ultra dive data loggers (2015-2016). TA and DIC
analyses were performed using a Versatile Instrument for the Determination of
Total inorganic carbon and titration Alkalinity (VINDTA, Marianda Analytics
and Data) and standardized using certified reference materials obtained from
Andrew Dickson (Scripps Institution of Oceanography).
 
Salinity samples were analyzed at WHOI using a Guildline autosal salinometer,
and nutrient samples were run at the WHOI Nutrient Analytical Facility.
 
Seawater samples, and in situ instrument time series were collected during
seven expeditions to Jarvis Island between 2008 and 2017, aboard:
 
  * NOAA ship Hi\\u2019ialakai (27\\u201329 March 2008, 2\\u20134 April 2010, 3\\u20135 May 2012, 2\\u20135 April 2017)
 
  * Pangaea Exploration S/V Sea Dragon (13\\u201316 September 2012)
 
  * R/V Machias (12\\u201315 November 2015)
 
  * NOAA ship Oscar Elton Sette (17\\u201323 May 2016)
 
Research activities and sample collection were conducted under U.S. Fish and
Wildlife Service Pacific Reefs National Wildlife Refuge Complex Research and
Monitoring Special Use Permits
 
  * 12521-10001 (effective date: 15 Jan 2010; expiration date: 30 May 2010)
 
  * 12521-12001 (effective date: 7 Feb 2012; expiration date: 31 Dec 2012)
 
  * 12521-12005 (effective date: 29 Aug 2012; expiration date: 30 June 2014)
 
  * 12521-14001 (effective date: 1 Jan 2015; expiration date: 31 Dec 2015)
 
  * 12513-15001 (effective date: 11 Nov 2015; expiration date: 31 Dec 2015)
 
and in compliance with Presidential Proclamation 8336.";
    String awards_0_award_nid "768533";
    String awards_0_award_number "OCE-1737311";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1737311";
    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 "Daniel Thornhill";
    String awards_0_program_manager_nid "722161";
    String cdm_data_type "Other";
    String comment 
"Water chemistry 
  Pi: Anne Cohen   
  Data Version 1: 2019-09-30";
    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 "2019-08-22T18:49:18Z";
    String date_modified "2019-11-04T22:03:58Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.775834.1";
    Float64 Easternmost_Easting -159.937;
    Float64 geospatial_lat_max -0.3627;
    Float64 geospatial_lat_min -0.4269;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -159.937;
    Float64 geospatial_lon_min -160.0789;
    String geospatial_lon_units "degrees_east";
    String history 
"2020-12-05T08:41:09Z (local files)
2020-12-05T08:41:09Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_775834.das";
    String infoUrl "https://www.bco-dmo.org/dataset/775834";
    String institution "BCO-DMO";
    String instruments_0_acronym "Salinometer";
    String instruments_0_dataset_instrument_description "Guildline autosal salinometer";
    String instruments_0_dataset_instrument_nid "778679";
    String instruments_0_description "A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution.";
    String instruments_0_instrument_name "Salinometer";
    String instruments_0_instrument_nid "677";
    String instruments_1_acronym "inorganic carbon and alkalinity analyser";
    String instruments_1_dataset_instrument_nid "778678";
    String instruments_1_description "The Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity (VINDTA) 3C is a laboratory alkalinity titration system combined with an extraction unit for coulometric titration, which simultaneously determines the alkalinity and dissolved inorganic carbon content of a sample. The sample transport is performed with peristaltic pumps and acid is added to the sample using a membrane pump. No pressurizing system is required and only one gas supply (nitrogen or dry and CO2-free air) is necessary. The system uses a Metrohm Titrino 719S, an ORION-Ross pH electrode and a Metrohm reference electrode. The burette, the pipette and the analysis cell have a water jacket around them. Precision is typically +/- 1 umol/kg for TA and/or DIC in open ocean water.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0481/";
    String instruments_1_instrument_name "MARIANDA VINDTA 3C total inorganic carbon and titration alkalinity analyser";
    String instruments_1_instrument_nid "686";
    String instruments_2_dataset_instrument_description "Temperature and depth were recorded with HOBO temperature loggers (September 2012) and Sensus Ultra dive data loggers (2015-2016)";
    String instruments_2_dataset_instrument_nid "778677";
    String instruments_2_description "Records temperature data over a period of time.";
    String instruments_2_instrument_name "Temperature Logger";
    String instruments_2_instrument_nid "639396";
    String keywords "bco, bco-dmo, bicarbonate, biological, carbon, carbon dioxide, carbonate, chemical, chemistry, co2, co3, concentration, data, dataset, date, date_UTC, density, dic, dioxide, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Salinity/Density > Salinity, erddap, iso, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mole, mole_concentration_of_nitrate_in_sea_water, n02, nDIC, nitrate, no3, NO3_NO2, nTALK, ocean, oceanography, oceans, office, OM_ar, pCO2, phosphate, po4, practical, preliminary, pressure, reported, salinity, scale, science, sea, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, seawater, talk, temperature, time, time_UTC, total, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://www.bco-dmo.org/dataset/775834/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/775834";
    Float64 Northernmost_Northing -0.3627;
    String param_mapping "{'775834': {'latitude': 'flag - latitude', 'longitude': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/775834/parameters";
    String people_0_affiliation "Woods Hole Oceanographic Institution";
    String people_0_affiliation_acronym "WHOI";
    String people_0_person_name "Anne L Cohen";
    String people_0_person_nid "51428";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Woods Hole Oceanographic Institution";
    String people_1_affiliation_acronym "WHOI BCO-DMO";
    String people_1_person_name "Karen Soenen";
    String people_1_person_nid "748773";
    String people_1_role "BCO-DMO Data Manager";
    String people_1_role_type "related";
    String project "Coral Bleaching Skeletal Records";
    String projects_0_acronym "Coral Bleaching Skeletal Records";
    String projects_0_description 
"NSF abstract:
Ocean warming kills corals and efforts are underway to identify and protect coral reefs that may withstand the projected 21st century rise in tropical ocean temperatures. Coral reefs in the central equatorial Pacific (CEP) have been exposed to episodes of extreme warmth every 3-7 years for centuries, if not millennia, yet remain highly productive ecosystems. Initial data obtained by the investigator from stress signatures archived in the skeletons of long lived coral species, suggests that CEP reefs lose their symbiotic algae or bleach, sometimes severely, during warm episodes. The observation that CEP reefs bleach repetitively yet remain productive implies uncommon resilience to ocean warming. The investigator will use laboratory experiments and field observations to validate skeletal records of historical bleaching. A successful outcome will provide novel and valuable insights into the resilience of the CEP reefs and a new tool with which to identify thermally tolerant coral reef ecosystems across the tropics. Additionally, this project includes mentorship of a postdoc and six undergraduate or high school students, outreach through presentations and media, and expansion of publically available software for coral stress band analysis.
Ocean warming projections indicate severe impacts to coral reefs will occur on an annual basis within the next few decades. Consequently, a coordinated effort is underway to identify reefs that might survive these changes. The investigator will test the hypothesis that such reefs exist at the epicenter of influence of the El Niño-Southern Oscillation (ENSO), where strong inter-annual temperature variability creates conditions conducive for the development of thermal resilience. The project uses laboratory-based bleaching experiments and actual stress signatures accreted by wild corals during the 2015 El Niño to validate signatures of historical bleaching archived in the skeletons of massive reef building corals. In addition the investigator will use new, long cores from the CEP to build a robust dataset of historical bleaching back to the 1800's. A successful outcome will increase confidence in the interpretation of skeletal stress bands as quantitative bleaching proxies and enable the reconstruction of the history of coral reef bleaching and recovery in the CEP.";
    String projects_0_end_date "2020-07";
    String projects_0_geolocation "Central Equatorial Pacific";
    String projects_0_name "Skeletal Records of Coral Reef Bleaching in the Central Equatorial Pacific";
    String projects_0_project_nid "768534";
    String projects_0_start_date "2017-08";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -0.4269;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "This dataset contains information about discrete seawater samples collected from 2012-2016 on Jarvis Island for salinity, nutrients, total alkalinity (TA), and dissolved inorganic carbon (DIC) during each sampling period.";
    String time_coverage_end "2016-05-23T23:33:00Z";
    String time_coverage_start "2012-09-13T07:23:00Z";
    String title "Water Chemistry - Jarvis Island";
    String version "1";
    Float64 Westernmost_Easting -160.0789;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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 (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

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.

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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