Accessing BCO-DMO data
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BCO-DMO ERDDAP
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| Dataset Title: | [Plocamium CHN and stable isotopes] - Plocamium carbon and nitrogen content and stable isotope values, 2014-2015 (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_731187) |
| Information: | Summary
| License
| ISO 19115
| Metadata
| Background
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Attributes {
s {
Date {
String bcodmo_name "date_local";
String description "Sample collection date formatted as yyyy-mm-dd";
String long_name "Date";
String source_name "Date";
String time_precision "1970-01-01";
String units "unitless";
}
Sample_ID {
String bcodmo_name "sample";
String description "Trial number: time=0 or end (E); pot number; replicate";
String long_name "Sample ID";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
String units "unitless";
}
d13C {
Float32 _FillValue NaN;
Float32 actual_range -51.42, -30.0;
String bcodmo_name "d13C_bio";
String description "Isotopic composition of delta 13C of plant relative to Pee Dee Belemnite (PDB)";
String long_name "D13 C";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/IRBO/";
String units "ppt";
}
C_mass_sample {
Float32 _FillValue NaN;
Float32 actual_range 21.85, 978.9;
String bcodmo_name "TOC";
String description "Mass of carbon in sample";
String long_name "C Mass Sample";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CORGCOTX/";
String units "micrograms";
}
pcent_C {
Float32 _FillValue NaN;
Float32 actual_range 0.84, 34.19;
String bcodmo_name "TOC";
String description "Percentage of total mass that is carbon";
String long_name "Pcent C";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CORGCOTX/";
String units "unitless";
}
d15N {
Float32 _FillValue NaN;
Float32 actual_range 1.99, 10.65;
String bcodmo_name "d15N_bio";
String description "isotopic composition of delta 15N of plant relative to air";
String long_name "D15 N";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/IRBO/";
String units "ppt";
}
N_mass_sample {
Float32 _FillValue NaN;
Float32 actual_range 4.78, 126.84;
String bcodmo_name "TON";
String description "Mass of nitrogen in sample";
String long_name "N Mass Sample";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/NTOTZZZZ/";
String units "micrograms";
}
pcent_N {
Float32 _FillValue NaN;
Float32 actual_range 0.18, 4.43;
String bcodmo_name "TON";
String description "Percentage of total mass that is Nitrogen";
String long_name "Pcent N";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/NTOTZZZZ/";
String units "unitless";
}
C_N {
Float32 _FillValue NaN;
Float32 actual_range 4.57, 11.11;
String bcodmo_name "C_to_N";
String description "Ratio (by mass) of Carbon to Nitrogen";
String long_name "C N";
String units "unitless";
}
mass_plant {
Float32 _FillValue NaN;
Float32 actual_range 2.1, 3.34;
String bcodmo_name "mass_dry";
String description "Mass of plant tissue sample";
String long_name "Mass Plant";
String units "milligrams";
}
Flag {
String bcodmo_name "flag";
String description "Quality flag: y means UCD Stable Isotope facility flagged as imprecise due to low quantity of C or N";
String long_name "Flag";
String units "unitless";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv";
String acquisition_description
"Plocamium cartilagineum was collected from Catalina Island in June - Nov. 2014
and Jan. 2015.
Culture pots were placed in large thermally insulated coolers in a
temperature-controlled water bath at either 15 or 20\\u00b0C under saturating
illumination of ~150 \\u00b5moles photons/m^2/s. pCO2 treatments were supplied
to closed culture pots by use of a gas mixing system combining Nitrogen,
Oxygen and Carbon Dioxide to specific CO2 partial pressures, 20.9% oxygen and
the balance being Nitrogen.
Tissue samples were dried for 24 hours at 60\\u00b0C. Dried samples were
prepared for analysis by homogenizing samples using a metal laboratory scoop,
cleaned with ethanol between each sample, which resulted in a fine power.
Then, approximately 3 mg of the Plocamium cartilagineum tissue powder was
measured, using an analytical balance, into a tin capsule and carefully
enclosed with cleaned forceps. The tin capsules were put into 96-well trays
and sent to the University of California, Davis Stable Isotope Facility (UCD-
SIF). The samples were analyzed for delta-15N and delta-13C using the
elemental analysis \\u2013 isotope ratio mass spectrometry technique, which
also provides results for tissue C and N content.
Note: Trial 1 was a pilot test of culture system and methodological procedures
so was not used for data collection in the testing of hypotheses.
See Supplemental Files for a table of culture conditions for each of the 8
trials (pdf).";
String awards_0_award_nid "55177";
String awards_0_award_number "OCE-1316198";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1316198";
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 "David L. Garrison";
String awards_0_program_manager_nid "50534";
String cdm_data_type "Other";
String comment
"Carbon and nitrogen content and stable isotope values
PI's: J. Kubler, S. Dudgeon (CSU-Northridge)
version: 2018-03-26";
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 "2018-03-20T18:30:47Z";
String date_modified "2019-06-03T17:57:02Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.731187.1";
String history
"2024-11-20T03:52:23Z (local files)
2024-11-20T03:52:23Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_731187.html";
String infoUrl "https://www.bco-dmo.org/dataset/731187";
String institution "BCO-DMO";
String instruments_0_acronym "IR Mass Spec";
String instruments_0_dataset_instrument_description "Instrument located at the University of California, Davis Stable Isotope Facility (UCD-SIF) and used to measure isotope carbon and nitrogen isotopes.";
String instruments_0_dataset_instrument_nid "731199";
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_1_acronym "Scale";
String instruments_1_dataset_instrument_description "Used to weigh dried plant tissue samples.";
String instruments_1_dataset_instrument_nid "731198";
String instruments_1_description "An instrument used to measure weight or mass.";
String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/LAB13/";
String instruments_1_instrument_name "Scale";
String instruments_1_instrument_nid "714";
String instruments_1_supplied_name "Analytical balance (Mettler Toledo XP205)";
String keywords "bco, bco-dmo, biological, C_mass_sample, C_N, chemical, d13, d13C, d15, d15N, data, dataset, date, dmo, erddap, flag, management, mass, mass_plant, N_mass_sample, oceanography, office, pcent, pcent_C, pcent_N, plant, preliminary, sample, Sample_ID, time";
String license "https://www.bco-dmo.org/dataset/731187/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/731187";
String param_mapping "{'731187': {}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/731187/parameters";
String people_0_affiliation "California State University Northridge";
String people_0_affiliation_acronym "CSU-Northridge";
String people_0_person_name "Dr Janet E Kubler";
String people_0_person_nid "51681";
String people_0_role "Principal Investigator";
String people_0_role_type "originator";
String people_1_affiliation "California State University Northridge";
String people_1_affiliation_acronym "CSU-Northridge";
String people_1_person_name "Dr Steve Dudgeon";
String people_1_person_nid "51682";
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 BCO-DMO";
String people_2_person_name "Nancy Copley";
String people_2_person_nid "50396";
String people_2_role "BCO-DMO Data Manager";
String people_2_role_type "related";
String project "Seaweed OA Resilience";
String projects_0_acronym "Seaweed OA Resilience";
String projects_0_description "Benthic macroalgae contribute to intensely productive near shore ecosystems and little is known about the potential effects of ocean acidification on non-calcifying macroalgae. Kübler and Dudgeon will test hypotheses about two macroalgae, Ulva spp. and Plocamium cartilagineum, which, for different reasons, are hypothesized to be more productive and undergo ecological expansions under predicted changes in ocean chemistry. They have designed laboratory culture-based experiments to quantify the scope for response to ocean acidification in Plocamium, which relies solely on diffusive uptake of CO2, and populations of Ulva spp., which have an inducible concentrating mechanism (CCM). The investigators will culture these algae in media equilibrated at 8 different pCO2 levels ranging from 380 to 940 ppm to address three key hypotheses. The first is that macroalgae (such as Plocamium cartilagineum) that are not able to acquire inorganic carbon in changed form will benefit, in terms of photosynthetic and growth rates, from ocean acidification. There is little existing data to support this common assumption. The second hypothesis is that enhanced growth of Ulva sp. under OA will result from the energetic savings from down regulating the CCM, rather than from enhanced photosynthesis per se. Their approach will detect existing genetic variation for adaptive plasticity. The third key hypothesis to be addressed in short-term culture experiments is that there will be a significant interaction between ocean acidification and nitrogen limited growth of Ulva spp., which are indicator species of eutrophication. Kübler and Dudgeon will be able to quantify the individual effects of ocean acidification and nitrogenous nutrient addition on Ulva spp. and also, the synergistic effects, which will inevitably apply in many highly productive, shallow coastal areas. The three hypotheses being addressed have been broadly identified as urgent needs in our growing understanding of the impacts of ocean acidification.";
String projects_0_end_date "2016-05";
String projects_0_geolocation "Temperate coastal waters of the USA (30 - 45 N latitude, -66 to -88 W and -117 to -125 W longitude)";
String projects_0_name "Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae";
String projects_0_project_nid "2275";
String projects_0_start_date "2013-06";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v55";
String summary "Plocamium carbon and nitrogen content and stable isotope values, 2014-2015";
String title "[Plocamium CHN and stable isotopes] - Plocamium carbon and nitrogen content and stable isotope values, 2014-2015 (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)";
String version "1";
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
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.
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.