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Dataset Title:  d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates
in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma,
leaving Guaymas on October 14, 2014 and returning to Mazatlan on October 27,
2014
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_763715)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 Core_section_cm (unitless) ?              
 cm_in_core (centimeters (cm)) ?          1.5    375.5
 sample_type (unitless) ?              
 d13C (per mil (‰)) ?          -39.96    9.52
 d13C_stdev (per mil (‰)) ?          0.01    2.56
 d18O (per mil (‰)) ?          -1.07    4.24
 d18O_stdev (per mil (‰)) ?          0.01    0.18
 
Server-side Functions ?
 distinct() ?
? (" ")

File type: (more info)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Core_section_cm {
    String description "Sample identification (core number, section number, cm within section)";
    String ioos_category "Unknown";
    String long_name "Core Section Cm";
    String units "unitless";
  }
  cm_in_core {
    Float32 _FillValue NaN;
    Float32 actual_range 1.5, 375.5;
    String description "Total sediment depth in centimeters";
    String ioos_category "Unknown";
    String long_name "Cm In Core";
    String units "centimeters (cm)";
  }
  sample_type {
    String description "Description of sample type";
    String ioos_category "Unknown";
    String long_name "Sample Type";
    String units "unitless";
  }
  d13C {
    Float32 _FillValue NaN;
    Float32 actual_range -39.96, 9.52;
    String description "d13C stable isotope values reported in per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB)";
    String ioos_category "Unknown";
    String long_name "D13 C";
    String units "per mil (‰)";
  }
  d13C_stdev {
    Float32 _FillValue NaN;
    Float32 actual_range 0.01, 2.56;
    String description "Standard deviation of d13C";
    String ioos_category "Unknown";
    String long_name "D13 C Stdev";
    String units "per mil (‰)";
  }
  d18O {
    Float32 _FillValue NaN;
    Float32 actual_range -1.07, 4.24;
    String description "d18O stable isotope values reported in per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB)";
    String ioos_category "Unknown";
    String long_name "D18 O";
    String units "per mil (‰)";
  }
  d18O_stdev {
    Float32 _FillValue NaN;
    Float32 actual_range 0.01, 0.18;
    String description "Standard deviation of d18O";
    String ioos_category "Unknown";
    String long_name "D18 O Stdev";
    String units "per mil (‰)";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv";
    String acquisition_description 
"Sediment cores were obtained by Piston coring (using commercial PVC core
liners) onboard R/V El Puma. Samples selected for carbonate isotope analyses
were freeze-dried, homogenized, and roasted under vacuum to eliminate organic
matter. Isotope analyses was performed on ~500 \\u00b5g of sediment using a
Kiel devise coupled with a Thermo MAT 253 gas ratio mass spectrometer at the
University of California, Santa Cruz. Values are reported in the per mil
(\\u2030) notation relative to Vienna Pee Dee Belemnite (VPDB). Reproducibility
of in-house standards is 0.07\\u2030 for 18O and 0.03\\u2030 for 13C.";
    String awards_0_award_nid "554980";
    String awards_0_award_number "OCE-0939564";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=0939564";
    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 "Dr David  L. Garrison";
    String awards_0_program_manager_nid "50534";
    String awards_1_award_nid "626086";
    String awards_1_award_number "OCE-1449604";
    String awards_1_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1449604";
    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 "Dr Thomas Janecek";
    String awards_1_program_manager_nid "511697";
    String cdm_data_type "Other";
    String comment 
"Isotopic data for carbonate nodules and sedimentary carbonates 
   from the Guaymas Basin and Sonora Margin 
  PI: Andreas Teske (UNC Chapel Hill) 
  Co-PI: Ana Christina Ravelo (UC Santa Cruz) 
  Version date: 13-March-2019";
    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 2.2d  13 Jun 2019";
    String date_created "2019-03-27T17:24:50Z";
    String date_modified "2019-06-04T20:47:26Z";
    String defaultDataQuery "&time";
    String doi "10.1575/1912/bco-dmo.763715.1";
    String history 
"2019-11-19T06:12:18Z (local files)
2019-11-19T06:12:18Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_763715.html";
    String infoUrl "https://www.bco-dmo.org/dataset/763715";
    String institution "BCO-DMO";
    String instruments_0_acronym "IR Mass Spec";
    String instruments_0_dataset_instrument_description "Isotope analyses was performed on ~500 �g of sediment using a Kiel devise coupled with a Thermo MAT 253 gas ratio mass spectrometer at the University of California, Santa Cruz.";
    String instruments_0_dataset_instrument_nid "763851";
    String instruments_0_description "The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/LAB16/";
    String instruments_0_instrument_name "Isotope-ratio Mass Spectrometer";
    String instruments_0_instrument_nid "469";
    String instruments_0_supplied_name "Thermo MAT 253";
    String instruments_1_acronym "Piston Corer";
    String instruments_1_dataset_instrument_nid "769507";
    String instruments_1_description "The piston corer is a type of bottom sediment sampling device. A long, heavy tube is plunged into the seafloor to extract samples of mud sediment. A piston corer uses a \"free fall\" of the coring rig to achieve a greater initial force on impact than gravity coring.  A sliding piston inside the core barrel reduces inside wall friction with the sediment and helps to evacuate displaced water from the top of the corer. A piston corer is capable of extracting core samples up to 90 feet in length.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/51/";
    String instruments_1_instrument_name "Piston Corer";
    String instruments_1_instrument_nid "519";
    String keywords "bco, bco-dmo, biological, chemical, cm_in_core, core, Core_section_cm, d13, d13C, d13C_stdev, d18, d18O, d18O_stdev, data, dataset, deviation, dmo, erddap, management, oceanography, office, preliminary, sample, sample_type, section, standard, standard deviation, stdev, type";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String metadata_source "https://www.bco-dmo.org/api/dataset/763715";
    String param_mapping "{'763715': {}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/763715/parameters";
    String people_0_affiliation "University of North Carolina at Chapel Hill";
    String people_0_affiliation_acronym "UNC-Chapel Hill";
    String people_0_person_name "Andreas P. Teske";
    String people_0_person_nid "51412";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "University of California-Santa Cruz";
    String people_1_affiliation_acronym "UC Santa Cruz";
    String people_1_person_name "Ana Christina Ravelo";
    String people_1_person_nid "661684";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "University of California-Santa Cruz";
    String people_2_affiliation_acronym "UC Santa Cruz";
    String people_2_person_name "Ana Christina Ravelo";
    String people_2_person_nid "661684";
    String people_2_role "Contact";
    String people_2_role_type "related";
    String people_3_affiliation "Woods Hole Oceanographic Institution";
    String people_3_affiliation_acronym "WHOI BCO-DMO";
    String people_3_person_name "Shannon Rauch";
    String people_3_person_nid "51498";
    String people_3_role "BCO-DMO Data Manager";
    String people_3_role_type "related";
    String project "RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin";
    String projects_0_acronym "RAPID Guaymas Basin";
    String projects_0_description 
"Description from NSF project abstract:
The Guaymas Basin in the central Gulf of California is an active tectonic spreading center overlain with thick, organic-rich sediments. In contrast to typical deep-water, mid-ocean ridge spreading centers that have very focused magmatism and little or no sediment, magmatism in the Guaymas Basis is more broadly distributed. This broadly-distributed magmatism significantly expands the fraction of organic-rich sediments that may be subject to alteration by the magmatic heat and thus it greatly expands the range of environments that support hydrocarbon generation and microbial populations in the sediments. Recognition that magmatism is not confined to the spreading axis, but instead is distributed throughout Guaymas Basin, suggests that models for the natural sequestration of carbon, the formation of oceanic crust, and life in the subsurface in marginal rift basins should be reconsidered as this has implications for the long-term removal of atmospheric carbon dioxide (and hence potential climatic implications). The Principal Investigator of this RAPID proposal is a lead proponent on an International Ocean Discovery Program (IODP) proposal to study this system in depth through scientific ocean drilling. To properly plan this expensive IODP expedition, additional site characterization gained from sediment sampling and seismic data is required. This proposal requests funds for the Principal Investigator to participate on an already planned site survey cruise aboard the Mexican Research Vessel (RV) El Puma. The results from this cruise will provide valuable data, at an exceptionally low investment, to guide decisions about potential future scientific drilling in the Guaymas Basin.
This RAPID proposal requests funds for the Principal Investigator to participate on a Mexican site survey cruise in October 2014 on RV El Puma to collect five-meter gravity cores of an extensive sediment transect across the Guaymas Basin and to integrate sequencing-based microbial community analyses of subsurface bacteria and archaea with biogechemical characterizations of these subsurface sediments. Gravity coring and microbial community analysis will target cold non-hydrothermal sediments as well as off-axis hydrothermally-influenced sediments. The gravity coring campaign and the geochemistry/microbiology studies are coordinated with heatflow measurements and extensive 2D seismic analysis and high-resolution 3D seismic mapping by other planned Mexican and German cruises. This multi-pronged strategy will deliver the additional data and complete the site characterizations that are required to properly plan a potential IODP drilling expedition by the JOIDES Resolution.";
    String projects_0_end_date "2015-08";
    String projects_0_geolocation "Guaymas Basin";
    String projects_0_name "RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin";
    String projects_0_project_nid "626087";
    String projects_0_start_date "2014-09";
    String publisher_name "Shannon Rauch";
    String publisher_role "BCO-DMO Data Manager(s)";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma (the Pacific Coast research vessel of the Autonomous University of Mexico) from October 14, 2014 to October 27, 2014.\\r\\n\\r\\nData for each core include: sample identification (core No., section number, cm within section, sample type), total sediment depth in cm, and d\\u00b9\\u00b3C isotopic composition in permille. background = sediment around the nodule.";
    String title "d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma, leaving Guaymas on October 14, 2014 and returning to Mazatlan on October 27, 2014";
    String version "1";
    String xml_source "osprey2erddap.update_xml() v1.5-beta";
  }
}

 

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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
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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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