BCO-DMO ERDDAP
Accessing BCO-DMO data

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Dataset Title:	[GS02 SWINGS aerosol data] - Aerosol trace element concentrations from the French GEOTRACES GS02 SWINGS cruise aboard R/V Marion-Dufresne (MD229) from January to March 2021 (Collaborative Research: Quantifying the atmospheric flux of bio-active trace elements to the southwestern Indian Ocean)
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_1008364_v1)
Range:	longitude = 31.701 to 80.219°E, latitude = -57.111 to -25.0°N, time = 2021-01-14T13:00:00Z to 2021-03-03T06:45:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Event_ID {
    Int32 actual_range 1, 19;
    String long_name "Event_id";
    String units "unitless";
  }
  BODC_Event_ID {
    Int32 actual_range 3521045, 3521171;
    String long_name "Bodc_event_id";
    String units "unitless";
  }
  Gear_ID {
    String long_name "Gear_id";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.6106292e+9, 1.6147539e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Start_iso_datetime_utc";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Start_Date_UTC {
    String long_name "Start_date_utc";
    String units "unitless";
  }
  Start_Time_UTC {
    String long_name "Start_time_utc";
    String units "unitless";
  }
  End_ISO_DateTime_UTC {
    Float64 actual_range 1.61070306e+9, 1.61485662e+9;
    String ioos_category "Time";
    String long_name "End_iso_datetime_utc";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  End_Date_UTC {
    String long_name "End_date_utc";
    String units "unitless";
  }
  End_Time_UTC {
    String long_name "End_time_utc";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -57.111, -25.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Start_latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 31.701, 80.219;
    String axis "X";
    String ioos_category "Location";
    String long_name "Start_longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  End_Latitude {
    Float32 actual_range -57.992, -25.0;
    String long_name "End_latitude";
    String units "degrees_north";
  }
  End_Longitude {
    Float32 actual_range 32.8, 81.481;
    String long_name "End_longitude";
    String units "degrees_east";
  }
  Mn_A_T_CONC_HIVOL_89eynk {
    Float32 actual_range 0.186, 14.482;
    String long_name "Mn_a_t_conc_hivol_89eynk";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Mn_A_T_CONC_HIVOL_89eynk {
    Float32 actual_range 0.05, 3.92;
    String long_name "Sd1_mn_a_t_conc_hivol_89eynk";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Mn_A_T_CONC_HIVOL_89eynk {
    Int32 actual_range 2, 9;
    String long_name "Flag_mn_a_t_conc_hivol_89eynk";
    String units "unitless";
  }
  Al_A_T_CONC_HIVOL_6nucza {
    Float32 actual_range 42.826, 1802.341;
    String long_name "Al_a_t_conc_hivol_6nucza";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Al_A_T_CONC_HIVOL_6nucza {
    Float32 actual_range 6.376, 385.255;
    String long_name "Sd1_al_a_t_conc_hivol_6nucza";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Al_A_T_CONC_HIVOL_6nucza {
    Int32 actual_range 2, 9;
    String long_name "Flag_al_a_t_conc_hivol_6nucza";
    String units "unitless";
  }
  Zn_A_T_CONC_HIVOL_v2ye95 {
    Float32 actual_range 1.947, 60.746;
    String long_name "Zn_a_t_conc_hivol_v2ye95";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Zn_A_T_CONC_HIVOL_v2ye95 {
    Float32 actual_range 0.254, 17.571;
    String long_name "Sd1_zn_a_t_conc_hivol_v2ye95";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Zn_A_T_CONC_HIVOL_v2ye95 {
    Int32 actual_range 2, 9;
    String long_name "Flag_zn_a_t_conc_hivol_v2ye95";
    String units "unitless";
  }
  Pb_A_T_CONC_HIVOL_wzhatx {
    Float32 actual_range 0.103, 3.63;
    String long_name "Pb_a_t_conc_hivol_wzhatx";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Pb_A_T_CONC_HIVOL_wzhatx {
    Float32 actual_range 0.002, 1.43;
    String long_name "Sd1_pb_a_t_conc_hivol_wzhatx";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Pb_A_T_CONC_HIVOL_wzhatx {
    Int32 actual_range 2, 9;
    String long_name "Flag_pb_a_t_conc_hivol_wzhatx";
    String units "unitless";
  }
  Ti_A_T_CONC_HIVOL_oujufj {
    Float32 actual_range 1.511, 105.96;
    String long_name "Ti_a_t_conc_hivol_oujufj";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Ti_A_T_CONC_HIVOL_oujufj {
    Float32 actual_range 0.286, 31.757;
    String long_name "Sd1_ti_a_t_conc_hivol_oujufj";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Ti_A_T_CONC_HIVOL_oujufj {
    Int32 actual_range 2, 9;
    String long_name "Flag_ti_a_t_conc_hivol_oujufj";
    String units "unitless";
  }
  Co_A_T_CONC_HIVOL_3dsiii {
    Float32 actual_range 0.005, 0.573;
    String long_name "Co_a_t_conc_hivol_3dsiii";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Co_A_T_CONC_HIVOL_3dsiii {
    Float32 actual_range 0.0, 0.369;
    String long_name "Sd1_co_a_t_conc_hivol_3dsiii";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Co_A_T_CONC_HIVOL_3dsiii {
    Int32 actual_range 2, 9;
    String long_name "Flag_co_a_t_conc_hivol_3dsiii";
    String units "unitless";
  }
  Cd_A_T_CONC_HIVOL_qqt27d {
    Float32 actual_range 0.006, 0.287;
    String long_name "Cd_a_t_conc_hivol_qqt27d";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Cd_A_T_CONC_HIVOL_qqt27d {
    Float32 actual_range 0.0, 0.205;
    String long_name "Sd1_cd_a_t_conc_hivol_qqt27d";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Cd_A_T_CONC_HIVOL_qqt27d {
    Int32 actual_range 2, 9;
    String long_name "Flag_cd_a_t_conc_hivol_qqt27d";
    String units "unitless";
  }
  Fe_A_T_CONC_HIVOL_mqpk25 {
    Float32 actual_range 14.188, 828.284;
    String long_name "Fe_a_t_conc_hivol_mqpk25";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Fe_A_T_CONC_HIVOL_mqpk25 {
    Float32 actual_range 0.495, 246.273;
    String long_name "Sd1_fe_a_t_conc_hivol_mqpk25";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Fe_A_T_CONC_HIVOL_mqpk25 {
    Int32 actual_range 2, 9;
    String long_name "Flag_fe_a_t_conc_hivol_mqpk25";
    String units "unitless";
  }
  P_A_T_CONC_HIVOL_ioj65j {
    Float32 actual_range 12.082, 147.318;
    String long_name "P_a_t_conc_hivol_ioj65j";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_P_A_T_CONC_HIVOL_ioj65j {
    Float32 actual_range 2.008, 23.946;
    String long_name "Sd1_p_a_t_conc_hivol_ioj65j";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_P_A_T_CONC_HIVOL_ioj65j {
    Int32 actual_range 2, 9;
    String long_name "Flag_p_a_t_conc_hivol_ioj65j";
    String units "unitless";
  }
  Cu_A_T_CONC_HIVOL_jwki2u {
    Float32 actual_range 0.244, 7.378;
    String long_name "Cu_a_t_conc_hivol_jwki2u";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Cu_A_T_CONC_HIVOL_jwki2u {
    Float32 actual_range 0.112, 1.908;
    String long_name "Sd1_cu_a_t_conc_hivol_jwki2u";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Cu_A_T_CONC_HIVOL_jwki2u {
    Int32 actual_range 2, 9;
    String long_name "Flag_cu_a_t_conc_hivol_jwki2u";
    String units "unitless";
  }
  Ni_A_T_CONC_HIVOL_4dneay {
    Float32 actual_range 0.003, 6.721;
    String long_name "Ni_a_t_conc_hivol_4dneay";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_Ni_A_T_CONC_HIVOL_4dneay {
    Float32 actual_range 0.024, 1.974;
    String long_name "Sd1_ni_a_t_conc_hivol_4dneay";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_Ni_A_T_CONC_HIVOL_4dneay {
    Int32 actual_range 2, 9;
    String long_name "Flag_ni_a_t_conc_hivol_4dneay";
    String units "unitless";
  }
  V_A_T_CONC_HIVOL_diymwj {
    Float32 actual_range 0.026, 12.808;
    String long_name "V_a_t_conc_hivol_diymwj";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  SD1_V_A_T_CONC_HIVOL_diymwj {
    Float32 actual_range 0.006, 1.343;
    String long_name "Sd1_v_a_t_conc_hivol_diymwj";
    String units "picomoles per cubic meter (pmol/m3)";
  }
  Flag_V_A_T_CONC_HIVOL_diymwj {
    Int32 actual_range 2, 9;
    String long_name "Flag_v_a_t_conc_hivol_diymwj";
    String units "unitless";
  }
 }
  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 defaultDataQuery "&amp;time&lt;now";
    String doi "10.26008/1912/bco-dmo.1008364.1";
    Float64 Easternmost_Easting 80.219;
    Float64 geospatial_lat_max -25.0;
    Float64 geospatial_lat_min -57.111;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 80.219;
    Float64 geospatial_lon_min 31.701;
    String geospatial_lon_units "degrees_east";
    String history 
"2026-10-18T10:47:42Z (local files)
2026-10-18T10:47:42Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_1008364_v1.das";
    String infoUrl "https://osprey.bco-dmo.org/dataset/1008364";
    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 -25.0;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -57.111;
    String summary "This project involved measuring the aerosol trace element concentrations, aerosol fractional solubility, and atmospheric deposition of bio-essential trace elements on a cruise of opportunity, collaborating in a multidisciplinary project studying trace element sources, transformations, and sinks in the Indian Ocean sector of the Southern Ocean, an area that has been relatively under-studied from a biogeochemical perspective. The cruise track crossed the currents and oceanographic fronts that are major pathways of the general circulation in the region and allowed us to quantify the atmospheric deposition of bioactive trace elements in a region with multiple possible aerosol sources, and where aerosol iron (Fe) deposition and rainfall rates are predicted to range over 1-2 orders of magnitude.";
    String time_coverage_end "2021-03-03T06:45:00Z";
    String time_coverage_start "2021-01-14T13:00:00Z";
    String title "[GS02 SWINGS aerosol data] - Aerosol trace element concentrations from the French GEOTRACES GS02 SWINGS cruise aboard R/V Marion-Dufresne (MD229) from January to March 2021 (Collaborative Research: Quantifying the atmospheric flux of bio-active trace elements to the southwestern Indian Ocean)";
    Float64 Westernmost_Easting 31.701;
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.

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