BCO-DMO ERDDAP
Accessing BCO-DMO data

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Dataset Title:	[GP15 Dissolved Ba Cd Cu Ga Mn Ni and Pb Leg 1] - Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_835589_v4)
Range:	longitude = -156.962 to -151.999°E, latitude = 19.681 to 56.094°N, time = 2018-09-24T10:20:00Z to 2018-10-21T13:05:00Z
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 {
  Station_ID {
    Float32 actual_range 1.0, 18.3;
    String long_name "Station_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 1.5377844e+9, 1.5401271e+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 {
    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 19.681, 56.094;
    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 -156.962, -151.999;
    String axis "X";
    String ioos_category "Location";
    String long_name "Start_longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  End_Latitude {
    String long_name "End_latitude";
    String units "degrees_north";
  }
  End_Longitude {
    String long_name "End_longitude";
    String units "degrees_east";
  }
  Event_ID {
    Float32 actual_range 6518.0, 6770.0;
    String long_name "Event_id";
    String units "unitless";
  }
  Sample_ID {
    Float32 actual_range 12322.0, 13916.0;
    String long_name "Sample_id";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    String axis "Z";
    String ioos_category "Location";
    String long_name "Sample_depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  CTD_Pressure {
    Float32 actual_range 3.5, 5694.3;
    String long_name "Ctd_pressure";
    String units "decibars (dbar)";
  }
  Ba_D_CONC_BOTTLE_hndhco {
    Float32 actual_range 31.1, 159.8;
    String long_name "Ba_d_conc_bottle_hndhco";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Ba_D_CONC_BOTTLE_hndhco {
    String long_name "Sd1_ba_d_conc_bottle_hndhco";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Ba_D_CONC_BOTTLE_hndhco {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_ba_d_conc_bottle_hndhco";
    String units "unitless";
  }
  Ba_D_CONC_FISH_nwzpfg {
    Float32 actual_range 31.2, 50.7;
    String long_name "Ba_d_conc_fish_nwzpfg";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Ba_D_CONC_FISH_nwzpfg {
    String long_name "Sd1_ba_d_conc_fish_nwzpfg";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Ba_D_CONC_FISH_nwzpfg {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_ba_d_conc_fish_nwzpfg";
    String units "unitless";
  }
  Cd_D_CONC_BOTTLE_3qngnv {
    Float32 actual_range 0.0, 1.222;
    String long_name "Cd_d_conc_bottle_3qngnv";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Cd_D_CONC_BOTTLE_3qngnv {
    String long_name "Sd1_cd_d_conc_bottle_3qngnv";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Cd_D_CONC_BOTTLE_3qngnv {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_cd_d_conc_bottle_3qngnv";
    String units "unitless";
  }
  Cd_D_CONC_FISH_rysl9e {
    Float32 actual_range 0.01, 0.275;
    String long_name "Cd_d_conc_fish_rysl9e";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Cd_D_CONC_FISH_rysl9e {
    String long_name "Sd1_cd_d_conc_fish_rysl9e";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Cd_D_CONC_FISH_rysl9e {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_cd_d_conc_fish_rysl9e";
    String units "unitless";
  }
  Cu_D_CONC_BOTTLE_l8pofx {
    Float32 actual_range 0.43, 12.4;
    String long_name "Cu_d_conc_bottle_l8pofx";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Cu_D_CONC_BOTTLE_l8pofx {
    String long_name "Sd1_cu_d_conc_bottle_l8pofx";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Cu_D_CONC_BOTTLE_l8pofx {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_cu_d_conc_bottle_l8pofx";
    String units "unitless";
  }
  Cu_D_CONC_FISH_lkwnfb {
    Float32 actual_range 0.43, 3.19;
    String long_name "Cu_d_conc_fish_lkwnfb";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Cu_D_CONC_FISH_lkwnfb {
    String long_name "Sd1_cu_d_conc_fish_lkwnfb";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Cu_D_CONC_FISH_lkwnfb {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_cu_d_conc_fish_lkwnfb";
    String units "unitless";
  }
  Ga_D_CONC_BOTTLE_wbt8su {
    Float32 actual_range 2.4, 28.6;
    String long_name "Ga_d_conc_bottle_wbt8su";
    String units "picomoles per kilogram (pmol/kg)";
  }
  SD1_Ga_D_CONC_BOTTLE_wbt8su {
    String long_name "Sd1_ga_d_conc_bottle_wbt8su";
    String units "picomoles per kilogram (pmol/kg)";
  }
  Flag_Ga_D_CONC_BOTTLE_wbt8su {
    Float32 actual_range 1.0, 9.0;
    String long_name "Flag_ga_d_conc_bottle_wbt8su";
    String units "unitless";
  }
  Ga_D_CONC_FISH_ucndh3 {
    Float32 actual_range 2.7, 14.5;
    String long_name "Ga_d_conc_fish_ucndh3";
    String units "picomoles per kilogram (pmol/kg)";
  }
  SD1_Ga_D_CONC_FISH_ucndh3 {
    String long_name "Sd1_ga_d_conc_fish_ucndh3";
    String units "picomoles per kilogram (pmol/kg)";
  }
  Flag_Ga_D_CONC_FISH_ucndh3 {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_ga_d_conc_fish_ucndh3";
    String units "unitless";
  }
  Mn_D_CONC_BOTTLE_s3mevt {
    Float32 actual_range 0.11, 18.37;
    String long_name "Mn_d_conc_bottle_s3mevt";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Mn_D_CONC_BOTTLE_s3mevt {
    String long_name "Sd1_mn_d_conc_bottle_s3mevt";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Mn_D_CONC_BOTTLE_s3mevt {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_mn_d_conc_bottle_s3mevt";
    String units "unitless";
  }
  Mn_D_CONC_FISH_0k2rmu {
    Float32 actual_range 0.52, 8.17;
    String long_name "Mn_d_conc_fish_0k2rmu";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Mn_D_CONC_FISH_0k2rmu {
    String long_name "Sd1_mn_d_conc_fish_0k2rmu";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Mn_D_CONC_FISH_0k2rmu {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_mn_d_conc_fish_0k2rmu";
    String units "unitless";
  }
  Ni_D_CONC_BOTTLE_9xta6d {
    Float32 actual_range 2.08, 10.52;
    String long_name "Ni_d_conc_bottle_9xta6d";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Ni_D_CONC_BOTTLE_9xta6d {
    String long_name "Sd1_ni_d_conc_bottle_9xta6d";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Ni_D_CONC_BOTTLE_9xta6d {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_ni_d_conc_bottle_9xta6d";
    String units "unitless";
  }
  Ni_D_CONC_FISH_yj7vul {
    Float32 actual_range 2.14, 4.64;
    String long_name "Ni_d_conc_fish_yj7vul";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Ni_D_CONC_FISH_yj7vul {
    String long_name "Sd1_ni_d_conc_fish_yj7vul";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Ni_D_CONC_FISH_yj7vul {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_ni_d_conc_fish_yj7vul";
    String units "unitless";
  }
  Pb_D_CONC_BOTTLE_xtsjbw {
    Float32 actual_range 0.004, 0.065;
    String long_name "Pb_d_conc_bottle_xtsjbw";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Pb_D_CONC_BOTTLE_xtsjbw {
    String long_name "Sd1_pb_d_conc_bottle_xtsjbw";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Pb_D_CONC_BOTTLE_xtsjbw {
    Float32 actual_range 1.0, 4.0;
    String long_name "Flag_pb_d_conc_bottle_xtsjbw";
    String units "unitless";
  }
  Pb_D_CONC_FISH_ugbi36 {
    Float32 actual_range 0.004, 0.045;
    String long_name "Pb_d_conc_fish_ugbi36";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  SD1_Pb_D_CONC_FISH_ugbi36 {
    String long_name "Sd1_pb_d_conc_fish_ugbi36";
    String units "nanomoles per kilogram (nmol/kg)";
  }
  Flag_Pb_D_CONC_FISH_ugbi36 {
    Float32 actual_range 1.0, 1.0;
    String long_name "Flag_pb_d_conc_fish_ugbi36";
    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.835589.4";
    Float64 Easternmost_Easting -151.999;
    Float64 geospatial_lat_max 56.094;
    Float64 geospatial_lat_min 19.681;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -151.999;
    Float64 geospatial_lon_min -156.962;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-11-08T06:06:39Z (local files)
2024-11-08T06:06:39Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_835589_v4.das";
    String infoUrl "https://www.bco-dmo.org/dataset/835589";
    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 56.094;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 19.681;
    String summary "Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018.";
    String time_coverage_end "2018-10-21T13:05:00Z";
    String time_coverage_start "2018-09-24T10:20:00Z";
    String title "[GP15 Dissolved Ba Cd Cu Ga Mn Ni and Pb Leg 1] - Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))";
    Float64 Westernmost_Easting -156.962;
  }
}

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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