Accessing BCO-DMO data
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BCO-DMO ERDDAP
Accessing BCO-DMO data |
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| Dataset Title: | [Northern Gulf of Mexico pore geochemical data] - Depth profiles of pore water constituents from sediment cores collected on the Louisiana Shelf of the Northern Gulf of Mexico during 2020, 2021, and 2022 on R/V Savannah cruises SAV- 20-07, SAV-21-25, SAV-21-24, SAV-22-06, and SAV-22-11 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_904417_v2) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
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Attributes {
s {
Year {
String long_name "Year";
String units "unitless";
}
Month {
String long_name "Month";
String units "unitless";
}
Day {
String long_name "Day";
String units "unitless";
}
Date {
String long_name "Date";
String units "unitless";
}
Collection_Type {
String long_name "Collection_type";
String units "unitless";
}
Station {
String long_name "Station";
String units "unitless";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -91.33712, -88.60532;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 28.19917, 28.94785;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
sample_ID {
Int32 actual_range 0, 24;
String long_name "Sample_id";
String units "unitless";
}
Sediment_depth_cm {
Float32 actual_range 0.0, 38.2;
String long_name "Sediment_depth_cm";
String units "centimeters (cm)";
}
DIC {
Float32 actual_range 1.79141, 21.3;
String long_name "Dic";
String units "millimoles per liter (mM)";
}
sd_DIC {
Float32 actual_range 0.0, 0.89;
String long_name "Sd_dic";
String units "millimoles per liter (mM)";
}
PO4 {
Float32 actual_range 0.0, 208.93;
String long_name "Po4";
String units "micromoles per liter (uM)";
}
sd_PO4 {
Float32 actual_range 0.0, 4.03;
String long_name "Sd_po4";
String units "micromoles per liter (uM)";
}
NH4 {
Float32 actual_range 0.0, 4453.495;
String long_name "Nh4";
String units "micromoles per liter (uM)";
}
sd_NH4 {
Float32 actual_range 0.0, 327.583;
String long_name "Sd_nh4";
String units "micromoles per liter (uM)";
}
TA {
Float32 actual_range 2.29, 22.08;
String long_name "Ta";
String units "millimoles per liter (mM)";
}
sd_TA {
Float32 actual_range 0.0, 0.49991;
String long_name "Sd_ta";
String units "millimoles per liter (mM)";
}
d13C_DIC {
Float32 actual_range -14.408, 0.2745;
String long_name "D13c_dic";
String units "per mil (‰)";
}
sd_d13C_DIC {
Float32 actual_range 0.00236, 0.27035;
String long_name "Sd_d13c_dic";
String units "per mil (‰)";
}
Mnd {
Float32 actual_range 0.05889, 625.1616;
String long_name "Mnd";
String units "micromoles per liter (uM)";
}
sd_Mnd {
Float32 actual_range 0.00777, 16.72205;
String long_name "Sd_mnd";
String units "micromoles per liter (uM)";
}
Cad {
Float32 actual_range 9.363, 21.06;
String long_name "Cad";
String units "millimoles per liter (mM)";
}
sd_Cad {
Float32 actual_range 0.01, 0.68;
String long_name "Sd_cad";
String units "millimoles per liter (mM)";
}
Fe_II {
Float32 actual_range 0.0, 200.74;
String long_name "Fe_ii";
String units "micromoles per liter (uM)";
}
sd_Fe_II {
Float32 actual_range 0.0, 19.298;
String long_name "Sd_fe_ii";
String units "micromoles per liter (uM)";
}
Fed {
Float32 actual_range 0.0, 538.63;
String long_name "Fed";
String units "micromoles per liter (uM)";
}
sd_Fed {
Float32 actual_range 0.0, 6.74;
String long_name "Sd_fed";
String units "micromoles per liter (uM)";
}
Fe_III_d {
Float32 actual_range 0.0, 471.73;
String long_name "Fe_iii_d";
String units "micromoles per liter (uM)";
}
sd_Fe_III_d {
Float32 actual_range 0.0, 19.317;
String long_name "Sd_fe_iii_d";
String units "micromoles per liter (uM)";
}
}
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.904417.2";
Float64 Easternmost_Easting -88.60532;
Float64 geospatial_lat_max 28.94785;
Float64 geospatial_lat_min 28.19917;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -88.60532;
Float64 geospatial_lon_min -91.33712;
String geospatial_lon_units "degrees_east";
String history
"2026-07-23T07:20:52Z (local files)
2026-07-23T07:20:52Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_904417_v2.html";
String infoUrl "https://osprey.bco-dmo.org/dataset/904417";
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.";
Float64 Northernmost_Northing 28.94785;
String sourceUrl "(local files)";
Float64 Southernmost_Northing 28.19917;
String summary
"This data set reports depth profiles of pore water concentrations of dissolved inorganic carbon (DIC), orthophosphate (PO43-), ammonium (NH4+), total alkalinity (TA), carbon isotopic fractionation of DIC (13C-DIC), dissolved manganese (Mnd), dissolved calcium (Cad), reduced iron (Fe(II)), total dissolved Fe (Fed), and dissolved Fe(III) (Fe(III)d) by the difference of total dissolved Fe and Fe(II). Data were collected during five R/V Savannah cruises in fall 2020, summer and fall 2021, and fall and spring 2022. On each cruise pore water data were obtained from sediment cores collected with an MC-800 multi-corer at multiple stations. Cruise IDs were: SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, SAV-22-11.
All cores were processed within a few hours after collection. The pore waters were first extracted by slicing sediment cores of < 40 centimeters (cm) long and centrifugation of the pore waters under N2 atmosphere to avoid air contamination. Pore waters were then immediately filtered through 0.22-micrometer (um) PSE syringe filters under N2 atmosphere and either analyzed immediately onboard (Fe speciation, orthophosphate, DIC), preserved acidified with hydrochloric acid at 4 degrees Celsius (Cad, Mnd), frozen (ammonium), or preserved at 4 degrees Celsius after addition of HgCl2 (TA) until analysis. In addition, samples for TA and carbon isotopic analyses were preserved in glass bottles, whereas other samples were preserved in polypropylene containers.
DIC was analyzed by flow injection analysis (Hall and Aller, 1992), orthophosphate, ammonium, and Fe speciation by spectrophotometry (Murphy and Riley, 1962; Strickland and Parsons, 1972; Stookey, 1970), TA by Gran titration (Gran, 1952), the carbon isotopic signature by isotope ratio mass spectrometry (Wang et al, 2018), and Mnd and Cad by ICP-MS (Magette et al., 2025 In preparation).";
String title "[Northern Gulf of Mexico pore geochemical data] - Depth profiles of pore water constituents from sediment cores collected on the Louisiana Shelf of the Northern Gulf of Mexico during 2020, 2021, and 2022 on R/V Savannah cruises SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, and SAV-22-11 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins)";
Float64 Westernmost_Easting -91.33712;
}
}
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.