Accessing BCO-DMO data
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BCO-DMO ERDDAP
Accessing BCO-DMO data |
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| Dataset Title: | [nGoM benthic chamber between July 2021 and July 2022] - Benthic chamber geochemical data obtained with an in situ benthic lander from the R/V Savannah at sampling stations across the Louisiana shelf and slope in the Northern Gulf of Mexico during four cruise between July 2021 and July 2022 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_959033_v1) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
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Attributes {
s {
Date {
String long_name "Date";
String units "unitless";
}
Year {
String long_name "Year";
String units "unitless";
}
Month {
String long_name "Month";
String units "unitless";
}
Day {
String long_name "Day";
String units "unitless";
}
Cruise_ID {
String long_name "Cruise_id";
String units "unitless";
}
Collection_Type {
String long_name "Collection_type";
String units "unitless";
}
Station {
String long_name "Station";
String units "unitless";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range -91.33712, -88.60532;
String axis "Y";
String ioos_category "Location";
String long_name "Lon";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range 28.19917, 28.94785;
String axis "X";
String ioos_category "Location";
String long_name "Lat";
String standard_name "longitude";
String units "degrees_east";
}
sample_ID {
Int32 actual_range 1, 18;
String long_name "Sample_id";
String units "unitless";
}
Time_h {
Float32 actual_range 0.2, 31.37;
String long_name "Time_h";
String units "hours (h)";
}
DIC_mM {
Float32 actual_range 2.07, 2.72;
String long_name "Dic_mm";
String units "millimolar (mM)";
}
sdDIC_mM {
Float32 actual_range 0.0, 0.07;
String long_name "Sddic_mm";
String units "millimolar (mM)";
}
PO4_uM {
Float32 actual_range 0.0, 3.66;
String long_name "Po4_um";
String units "micromolar (uM)";
}
sdPO4_uM {
Float32 actual_range 0.0, 0.16;
String long_name "Sdpo4_um";
String units "micromolar (uM)";
}
NH4_uM {
Float32 actual_range 0.0, 69.83;
String long_name "Nh4_um";
String units "micromolar (uM)";
}
sdNH4_uM {
Float32 actual_range 0.0, 1.19;
String long_name "Sdnh4_um";
String units "micromolar (uM)";
}
TA_mM {
Float32 actual_range 2.15, 3.13;
String long_name "Ta_mm";
String units "millimolar (mM)";
}
sdTA_mM {
Float32 actual_range 0.0, 0.08;
String long_name "Sdta_mm";
String units "millimolar (mM)";
}
d13C_DIC_permille {
Float32 actual_range -3.83, 0.51;
String long_name "D13c_dic_permille";
String units "per mille";
}
sdd13C_DIC_permille {
Float32 actual_range 0.01, 0.43;
String long_name "Sdd13c_dic_permille";
String units "per mille";
}
Mnd_uM {
Float32 actual_range 0.01, 9.04;
String long_name "Mnd_um";
String units "micromolar (uM)";
}
sdMnd_uM {
Float32 actual_range 0.0, 0.23;
String long_name "Sdmnd_um";
String units "micromolar (uM)";
}
Cad_mM {
Float32 actual_range 9.23, 11.55;
String long_name "Cad_mm";
String units "millimolar (mM)";
}
sdCad_mM {
Float32 actual_range 0.01, 0.27;
String long_name "Sdcad_mm";
String units "millimolar (mM)";
}
NO3_uM {
Float32 actual_range 0.09, 74.23;
String long_name "No3_um";
String units "micromolar (uM)";
}
sdNO3_uM {
Float32 actual_range 0.0, 1.94;
String long_name "Sdno3_um";
String units "micromolar (uM)";
}
ExBr_mM {
Float32 actual_range -0.44, 5.86;
String long_name "Exbr_mm";
String units "millimolar (mM)";
}
sdExBr_mM {
Float32 actual_range 0.0, 0.27;
String long_name "Sdexbr_mm";
String units "millimolar (mM)";
}
}
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.959033.1";
Float64 Easternmost_Easting 28.94785;
Float64 geospatial_lat_max -88.60532;
Float64 geospatial_lat_min -91.33712;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 28.94785;
Float64 geospatial_lon_min 28.19917;
String geospatial_lon_units "degrees_east";
String history
"2026-07-23T07:20:51Z (local files)
2026-07-23T07:20:51Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_959033_v1.html";
String infoUrl "https://osprey.bco-dmo.org/dataset/959033";
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 -88.60532;
String sourceUrl "(local files)";
Float64 Southernmost_Northing -91.33712;
String summary
"This data set reports benthic flux measurements of dissolved inorganic carbon (DIC), orthophosphate (SPO43-), ammonium (NH4+), total alkalinity (TA), carbon isotopic fractionation of DIC (13-C-DIC), dissolved manganese (Mnd), dissolved calcium (Cad), nitrate (NO3-), and excess bromide (Br-) injected in the chamber as chemical tracer.
In summer 2021, benthic flux data were obtained from benthic chamber deployments at eleven different stations on the Louisiana Shelf and slope in the Northern Gulf of Mexico during July 15-27, 2021 using two different benthic landers. These stations span two transects, one from the middle of the shelf offshore from Cocodrie, LA to the mouth of the Mississippi River North West Pass, and another from North West Pass of the Mississippi River mouth to the south, across the slope. A single station (St. 15) was also sampled on the eastern side of the second transect in the transition from the shelf break to the mid-slope. All benthic chamber samples were processed within an hour after collection.
In fall 2021, benthic flux data were obtained from benthic chamber deployments at ten different stations on the Louisiana Shelf and slope in the Northern Gulf of Mexico between October 25 and November 10, 2021 using two different benthic landers. These stations span two transects, one from the middle of the shelf offshore from Cocodrie, LA to the mouth of the Mississippi River South West Pass, and another from South West Pass of the Mississippi River mouth to the south, across the slope. Two stations (St. 15 and St. 12) were also sampled on a second transect from the shelf break to the slope southeast of the Bird's Foot.
In spring 2022, benthic flux data were obtained from benthic chamber deployments at ten different stations on the Louisiana Shelf and slope in the Northern Gulf of Mexico during April 9-20, 2021 using two different benthic landers. These stations span two transects, one from the middle of the shelf offshore from Cocodrie, LA to the mouth of the Mississippi River South West Pass, and another from South West Pass of the Mississippi River mouth to the south, across the slope. Two stations (St. 15 and St. 12) were also sampled on a second transect from the shelf break to the slope southeast of the Bird's Foot.
In summer 2022, benthic flux data were obtained from benthic chamber deployments at eleven different stations on the Louisiana Shelf and slope in the Northern Gulf of Mexico in July 9 -23, 2022 using two different benthic landers. These stations span two transects, one from the middle of the shelf offshore from Cocodrie, LA to the mouth of the Mississippi River South West Pass, and another from South West Pass of the Mississippi River mouth to the south, across the slope. Two stations (St. 15 and St. 12) were also sampled on a second transect from the shelf break to the slope southeast of the Bird's Foot.
Samples were immediately filtered through 0.22-micrometer (µm) PSE syringe filters and either analyzed immediately onboard (SPO43-), preserved acidified with hydrochloric acid at 4 degrees Celsius (Cad, Mnd), frozen (NH4+, NO3-, Br-), or preserved at 4 degrees Celsius after addition of HgCl2 (TA) until analysis. In addition, samples for DIC, TA, and carbon isotopic analyses were preserved in glass bottles, whereas other samples were preserved in polypropylene containers. DIC and TA were analyzed by Gran titration (Gran, 1952) using temperature-controlled closed cells (Dickson et al. 2007), orthophosphate and ammonium by spectrophotometry (Murphy and Riley, 1962; Strickland and Parsons, 1972), the carbon isotopic signature by isotope ratio mass spectrometry (Wang et al, 2018), Mnd and Cad by ICP-MS (Magette et al., 2025 In review), and NO3- and Br- by high performance liquid chromatography (HPLC) (Beckler et al., 2014). In summer 2022, benthic chamber and pore water DIC and TA samples were analyzed by cavity ring-down spectrometry (CRDS, Picarro G2131-i) with an automatic CO2 extraction system (Apollo SciTech AS-D1) and open-cell potentiometric titrations, respectively (Ferreira et al., 2025).";
String title "[nGoM benthic chamber between July 2021 and July 2022] - Benthic chamber geochemical data obtained with an in situ benthic lander from the R/V Savannah at sampling stations across the Louisiana shelf and slope in the Northern Gulf of Mexico during four cruise between July 2021 and July 2022 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins)";
Float64 Westernmost_Easting 28.19917;
}
}
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.