Accessing BCO-DMO data
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BCO-DMO ERDDAP
Accessing BCO-DMO data |
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| Dataset Title: | [Dissolved Organic Matter Sulfur and Carbon Analysis] - Dissolved organic matter sulfur and carbon analysis of samples collected between 2010 and 2021 from various locations globally (Resolving sources of marine DOM via novel sulfur isotope analyses) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_927046_v1) |
| Information: | Summary
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Attributes {
s {
Sample_ID {
Int32 actual_range 1, 100;
String long_name "Sample_id";
String units "unitless";
}
Sample_Location {
String long_name "Sample_location";
String units "unitless";
}
Station {
String long_name "Station";
String units "unitless";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Int32 actual_range 2, 4800;
String axis "Z";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
Latitude {
Float32 actual_range -13.0, 53.74;
String long_name "Latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -158.0, 7.7;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
Year {
String long_name "Year";
String units "unitless";
}
Month {
String long_name "Month";
String units "unitless";
}
d34S {
Float32 actual_range -2.72, 19.95;
String long_name "D34s";
String units "per mil (‰)";
}
n_d34S {
Int32 actual_range 1, 5;
String long_name "N_d34s";
String units "unitless";
}
std_error_d34S {
Float32 actual_range 0.13, 0.29;
String long_name "Std_error_d34s";
String units "per mil (‰)";
}
d13C {
Float32 actual_range -28.6, -21.53;
String long_name "D13c";
String units "per mil (‰)";
}
n_d13C {
Int32 actual_range 1, 6;
String long_name "N_d13c";
String units "unitless";
}
std_error_d13C {
Float32 actual_range 0.04, 0.09;
String long_name "Std_error_d13c";
String units "per mil (‰)";
}
C_to_S_ratio {
Int32 actual_range 18, 303;
String long_name "C_to_s_ratio";
String units "unitless";
}
n_C_to_S_ratio {
Int32 actual_range 1, 5;
String long_name "N_c_to_s_ratio";
String units "unitless";
}
std_error_C_to_S_ratio {
Int32 actual_range 2, 6;
String long_name "Std_error_c_to_s_ratio";
String units "unitless";
}
Oxygen {
Float32 actual_range 0.9, 265.4;
String long_name "Oxygen";
String units "micromolar (uM)";
}
Salinity {
Float32 actual_range 4.8, 36.8;
String long_name "Salinity";
String units "psu";
}
Flourescence {
Float32 actual_range 0.0, 1.8;
String long_name "Flourescence";
String units "relative fluorescence units";
}
Temperature {
Float32 actual_range 1.5, 36.4;
String long_name "Temperature";
String units "degrees Celsius";
}
Nitrate {
Float32 actual_range 0.0, 47.3;
String long_name "Nitrate";
String units "micromolar (uM)";
}
Phosphate {
Float32 actual_range 0.0, 3.2;
String long_name "Phosphate";
String units "micromolar (uM)";
}
Silicate {
Float32 actual_range 0.8, 168.0;
String long_name "Silicate";
String units "micromolar (uM)";
}
DOC {
Float32 actual_range 36.8, 84.5;
String long_name "Doc";
String units "micromolar (uM)";
}
DOS {
Int32 actual_range 133, 443;
String long_name "Dos";
String units "nanomolar (nM)";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_url "https://www.bco-dmo.org/";
String doi "10.26008/1912/bco-dmo.927046.1";
Float64 Easternmost_Easting 7.7;
Float64 geospatial_lon_max 7.7;
Float64 geospatial_lon_min -158.0;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 4800.0;
Float64 geospatial_vertical_min 2.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-11-08T05:53:52Z (local files)
2024-11-08T05:53:52Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_927046_v1.html";
String infoUrl "https://www.bco-dmo.org/dataset/927046";
String institution "BCO-DMO";
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 sourceUrl "(local files)";
String summary "The following dataset of SPE (solid phase extracted) DOM (dissolved organic matter) accompanies Phillips et al. 2022 (doi: 10.1073/pnas.2209152119). Our project sought to address the question of where long-lived organic molecules that are dissolved in the oceans come from, in particular molecules containing sulfur (S). Our approach was to measure the relative abundance of two stable sulfur isotopes (S-32 and S-34) in these molecules, which is technically very difficult due to the presence of million-fold higher sulfate ions in seawater. We developed a new preparatory chemistry to adequately isolate these organic molecules, and a new elemental analyzer/mass spectrometry method to measure their isotope abundances with high precision at trace levels. We conducted these S isotope measurements on 100 samples of dissolved organic matter (DOM) that had been previously collected by our collaborators from around the world (Northeast Pacific oxygen minimum zone, Northeast Pacific Shelf, North Pacific Gyre, San Pedro Basin, Caeté Estuary, South Pacific Gyre, and the North Sea). We also collected 2 dozen new samples from oceanographic stations in the North Pacific Gyre (Hawaii Ocean Timeseries) and North Atlantic Gyre (Bermuda Atlantic Time Series). The dataset includes 1) sample information such as sample ID, sample location, station name, collection depth (ranging from 0 to 4800 meters), latitude and longitude, month and year sampled (ranging from 2010 to 2021); 2) elemental analysis such as sulfur isotope values (δ34S), carbon (C) isotope values (δ13C), and C:S molar ratios; 3) physical parameters from collaborators' CTD analysis, such as oxygen, salinity, fluorescence, and temperature; and 4) chemical data from collaborators such as dissolved nitrate, phosphate, silicate, and calculated DOC (dissolved organic carbon) and DOS (dissolved organic sulfur) concentrations. Our data show that DOM molecules have (34S/32S) isotope ratios that are entirely consistent with being formed from ocean sulfate, and inconsistent with being formed by reactions of hydrogen sulfide in anoxic porewaters. This result negates one of the leading hypotheses for how long-lived DOM forms, i.e. by reactions in anoxic sediments. Instead, this sharpens our focus on understanding how relatively short-lived biomolecules in the surface ocean are transformed into long-lived DOM molecules.";
String title "[Dissolved Organic Matter Sulfur and Carbon Analysis] - Dissolved organic matter sulfur and carbon analysis of samples collected between 2010 and 2021 from various locations globally (Resolving sources of marine DOM via novel sulfur isotope analyses)";
Float64 Westernmost_Easting -158.0;
}
}
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.