BCO-DMO ERDDAP
Accessing BCO-DMO data

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Dataset Title:	[GP16 N2O Isotopes and Concentrations] - Nitrous oxide (N2O) isotopes and concentrations from the U.S. GEOTRACES EPZT cruise (GP16, TN303) on R/V Thomas G. Thompson in the tropical Pacific from October to December 2013 (U.S. GEOTRACES East Pacific Zonal Transect (GP16))
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_933645_v1)
Range:	longitude = -152.0 to -77.38°E, latitude = -16.0 to -10.5°N, depth = 3.0 to 5500.0m
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

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Things You Can Do With Your Graphs

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Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  STNNBR {
    Int32 actual_range 1, 36;
    String long_name "Stnnbr";
    String units "unitless";
  }
  GEOTRC_EVENTNO {
    Int32 actual_range 4012, 4474;
    String long_name "Geotrc_eventno";
    String units "unitless";
  }
  GEOTRC_SAMPNO {
    Int32 actual_range 2071, 10454;
    String long_name "Geotrc_sampno";
    String units "unitless";
  }
  DATE {
    String long_name "Date";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -16.0, -10.5;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -152.0, -77.38;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  CTDPRS {
    Float32 actual_range 2.9, 5609.2;
    String long_name "Ctdprs";
    String units "decibars";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Int32 actual_range 3, 5500;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  CTDTMP {
    Float32 actual_range 1.31, 29.05;
    String long_name "Ctdtmp";
    String units "degrees Celsius";
  }
  CTDSAL {
    Float32 actual_range 34.5, 36.26;
    String long_name "Ctdsal";
    String units "PSU";
  }
  N2O_ALPHA_15_14_D_DELTA_BOTTLE_mmz7wk {
    Float32 actual_range 10.94, 41.53;
    String long_name "N2o_alpha_15_14_d_delta_bottle_mmz7wk";
    String units "permille";
  }
  SD1_N2O_ALPHA_15_14_D_DELTA_BOTTLE_mmz7wk {
    Float32 actual_range 0.0, 9.58;
    String long_name "Sd1_n2o_alpha_15_14_d_delta_bottle_mmz7wk";
    String units "permille";
  }
  N2O_BETA_15_14_D_DELTA_BOTTLE {
    Float32 actual_range -14.2, 8.7;
    String long_name "N2o_beta_15_14_d_delta_bottle";
    String units "permille";
  }
  SD1_N2O_BETA_15_14_D_DELTA_BOTTLE {
    Float32 actual_range 0.0, 4.83;
    String long_name "Sd1_n2o_beta_15_14_d_delta_bottle";
    String units "permille";
  }
  N2O_SP_15_14_D_DELTA_BOTTLE {
    Float32 actual_range 7.49, 39.08;
    String long_name "N2o_sp_15_14_d_delta_bottle";
    String units "permille";
  }
  SD1_N2O_SP_15_14_D_DELTA_BOTTLE {
    Float32 actual_range 0.01, 11.14;
    String long_name "Sd1_n2o_sp_15_14_d_delta_bottle";
    String units "permille";
  }
  N2O_15_14_D_DELTA_BOTTLE_f2vswm {
    Float32 actual_range 4.11, 25.12;
    String long_name "N2o_15_14_d_delta_bottle_f2vswm";
    String units "permille";
  }
  SD1_N2O_15_14_D_DELTA_BOTTLE_f2vswm {
    Float32 actual_range 0.0, 4.02;
    String long_name "Sd1_n2o_15_14_d_delta_bottle_f2vswm";
    String units "permille";
  }
  N2O_17_16_D_DELTA_BOTTLE {
    Float32 actual_range 20.78, 45.93;
    String long_name "N2o_17_16_d_delta_bottle";
    String units "permille";
  }
  SD1_N2O_17_16_D_DELTA_BOTTLE {
    Float32 actual_range 0.0, 5.54;
    String long_name "Sd1_n2o_17_16_d_delta_bottle";
    String units "permille";
  }
  N2O_18_16_D_DELTA_BOTTLE_xkal8d {
    Float32 actual_range 40.66, 90.93;
    String long_name "N2o_18_16_d_delta_bottle_xkal8d";
    String units "permille";
  }
  SD1_N2O_18_16_D_DELTA_BOTTLE_xkal8d {
    Float32 actual_range 0.0, 11.05;
    String long_name "Sd1_n2o_18_16_d_delta_bottle_xkal8d";
    String units "permille";
  }
  N2O_D_CONC_BOTTLE_ahlf1q {
    Float32 actual_range 7.22, 89.81;
    String long_name "N2o_d_conc_bottle_ahlf1q";
    String units "nanomolar (nmol/L)";
  }
  SD1_N2O_D_CONC_BOTTLE_ahlf1q {
    Float32 actual_range 0.43, 5.29;
    String long_name "Sd1_n2o_d_conc_bottle_ahlf1q";
    String units "nanomolar (nmol/L)";
  }
  N2O_Flag {
    Int32 actual_range 1, 3;
    String long_name "N2o_flag";
    String units "unitless";
  }
  CASTNO {
    Int32 actual_range 1, 17;
    String long_name "Castno";
    String units "unitless";
  }
  OXYGEN {
    Float32 actual_range 1.4, 241.7;
    String long_name "Oxygen";
    String units "micromoles per kilogram (umol/kg)";
  }
  SILCATE {
    Float32 actual_range 0.78, 150.9;
    String long_name "Silcate";
    String units "micromoles per kilogram (umol/kg)";
  }
  NITRATE {
    Float32 actual_range 0.14, 46.15;
    String long_name "Nitrate";
    String units "micromoles per kilogram (umol/kg)";
  }
  NITRITE {
    Float32 actual_range 0.0, 11.04;
    String long_name "Nitrite";
    String units "micromoles per kilogram (umol/kg)";
  }
  PHOSPHATE {
    Float32 actual_range 0.24, 3.26;
    String long_name "Phosphate";
    String units "micromoles per kilogram (umol/kg)";
  }
 }
  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.933645.1";
    Float64 Easternmost_Easting -77.38;
    Float64 geospatial_lat_max -10.5;
    Float64 geospatial_lat_min -16.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -77.38;
    Float64 geospatial_lon_min -152.0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 5500.0;
    Float64 geospatial_vertical_min 3.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-11-08T05:56:37Z (local files)
2024-11-08T05:56:37Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_933645_v1.das";
    String infoUrl "https://www.bco-dmo.org/dataset/933645";
    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 -10.5;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -16.0;
    String summary "This dataset includes nitrous oxide (N2O) isotopes and concentration measurements with accompanying physiochemical data from the 2013 U.S. GEOTRACES East Pacific Zonal Transect cruise (GP16). The cruise sailed from October 25, 2013 to December 18, 2023 aboard the R/V Thompson.";
    String title "[GP16 N2O Isotopes and Concentrations] - Nitrous oxide (N2O) isotopes and concentrations from the U.S. GEOTRACES EPZT cruise (GP16, TN303) on R/V Thomas G. Thompson in the tropical Pacific from October to December 2013 (U.S. GEOTRACES East Pacific Zonal Transect (GP16))";
    Float64 Westernmost_Easting -152.0;
  }
}

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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