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Dataset Title:  [GS02 Beryllium-7 in seawater and aerosols] - Aerosol and seawater beryllium-7
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)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_927568_v1)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 Station_ID (unitless) ?          7    73
 Event_ID (unitless) ?          "SWG_07_022"    "SWG_73_179"
 Start_Date_UTC (unitless) ?          "2021-01-14"    "2021-03-03"
 Start_Time_UTC (unitless) ?          "00:08:00"    "23:45:00"
 time (Start_iso_datetime_utc, UTC) ?          2021-01-14T13:00:00Z    2021-03-03T08:31:00Z
  < slider >
 End_Date_UTC (unitless) ?          "2021-01-15"    "2021-03-04"
 End_Time_UTC (unitless) ?          "01:35:00"    "20:06:00"
 End_ISO_DateTime_UTC (UTC) ?          2021-01-15T09:31:00Z    2021-03-04T11:17:00Z
 latitude (Start_latitude, degrees_north) ?          -57.69    -25.0
  < slider >
 longitude (Start_longitude, degrees_east) ?          31.701    81.912
  < slider >
 End_Latitude (degrees_north) ?          -57.992    -25.0
 End_Longitude (degrees_east) ?          32.8    81.481
 Sample_ID (unitless) ?          "Aerosol1"    "Aerosol9"
 depth (Sample_depth, m) ?          5    156
  < slider >
 Be_7_D_CONC_PUMP_ggelbm (microBecquerel per kilogram (uBq/kg)) ?          379    9153
 SD1_Be_7_D_CONC_PUMP_ggelbm (microBecquerel per kilogram (uBq/kg)) ?          52    473
 Flag_Be_7_D_CONC_PUMP_ggelbm (unitless) ?          2    2
 Be_7_A_T_CONC_HIVOL_0nfmzr (milliBecquerel per cubic meter (mBq/m^3)) ?          0.39    6.17
 SD1_Be_7_A_T_CONC_HIVOL_0nfmzr (milliBecquerel per cubic meter (mBq/m^3)) ?          0.02    0.41
 Flag_Be_7_A_T_CONC_HIVOL_0nfmzr (unitless) ?          2    2
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Station_ID {
    Int32 actual_range 7, 73;
    String long_name "Station_id";
    String units "unitless";
  }
  Event_ID {
    String long_name "Event_id";
    String units "unitless";
  }
  Start_Date_UTC {
    String long_name "Start_date_utc";
    String units "unitless";
  }
  Start_Time_UTC {
    String long_name "Start_time_utc";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.6106292e+9, 1.61476026e+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";
  }
  End_Date_UTC {
    String long_name "End_date_utc";
    String units "unitless";
  }
  End_Time_UTC {
    String long_name "End_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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -57.69, -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, 81.912;
    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";
  }
  Sample_ID {
    String long_name "Sample_id";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Int32 actual_range 5, 156;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Sample_depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  Be_7_D_CONC_PUMP_ggelbm {
    Int32 actual_range 379, 9153;
    String long_name "Be_7_d_conc_pump_ggelbm";
    String units "microBecquerel per kilogram (uBq/kg)";
  }
  SD1_Be_7_D_CONC_PUMP_ggelbm {
    Int32 actual_range 52, 473;
    String long_name "Sd1_be_7_d_conc_pump_ggelbm";
    String units "microBecquerel per kilogram (uBq/kg)";
  }
  Flag_Be_7_D_CONC_PUMP_ggelbm {
    Int32 actual_range 2, 2;
    String long_name "Flag_be_7_d_conc_pump_ggelbm";
    String units "unitless";
  }
  Be_7_A_T_CONC_HIVOL_0nfmzr {
    Float32 actual_range 0.39, 6.17;
    String long_name "Be_7_a_t_conc_hivol_0nfmzr";
    String units "milliBecquerel per cubic meter (mBq/m^3)";
  }
  SD1_Be_7_A_T_CONC_HIVOL_0nfmzr {
    Float32 actual_range 0.02, 0.41;
    String long_name "Sd1_be_7_a_t_conc_hivol_0nfmzr";
    String units "milliBecquerel per cubic meter (mBq/m^3)";
  }
  Flag_Be_7_A_T_CONC_HIVOL_0nfmzr {
    Int32 actual_range 2, 2;
    String long_name "Flag_be_7_a_t_conc_hivol_0nfmzr";
    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 doi "10.26008/1912/bco-dmo.927568.1";
    Float64 Easternmost_Easting 81.912;
    Float64 geospatial_lat_max -25.0;
    Float64 geospatial_lat_min -57.69;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 81.912;
    Float64 geospatial_lon_min 31.701;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 156.0;
    Float64 geospatial_vertical_min 5.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-11-08T05:39:23Z (local files)
2024-11-08T05:39:23Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_927568_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/927568";
    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 -57.69;
    String summary "Beryllium-7, a cosmogenic radioactive isotope with a half-life of 53.3 days, is formed in the atmosphere, attaches to aerosol particles, and is deposited on the earth's surface through wet and dry processes. In this project, we measured Be-7 concentrations in aerosol particles and in seawater samples (depths < 200 meters) collected on the French GEOTRACES section GS02 SWINGS cruise aboard R/V Marion-Dufresne. The cruise originated at Réunion Island on 11 January 2021 and concluded at Réunion on 8 March 2021. Nineteen aerosol samples and seawater from eleven stations in the South Indian Ocean were collected. The dataset will be used to study the deposition of trace elements and isotopes (TEIs) and upper ocean mixing processes. Aerosol deposition is an important source of TE micronutrients to open ocean areas that are far removed from riverine sources. But, while the collection aerosol of samples for TEI analysis is straightforward, estimating the deposition flux also requires an appropriate deposition velocity (i.e. deposition flux is the product of the aerosol concentration and deposition velocity). Because Be-7 is supplied to the open ocean exclusively through aerosol deposition and it is removed through radioactive decay, the water column inventory and aerosol concentration of Be-7 can be used to derive the deposition velocity applicable to aerosol TEIs.";
    String time_coverage_end "2021-03-03T08:31:00Z";
    String time_coverage_start "2021-01-14T13:00:00Z";
    String title "[GS02 Beryllium-7 in seawater and aerosols] - Aerosol and seawater beryllium-7 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.

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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