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Dataset Title:  [Bedford Basin 2021-2024 Seawater 234Th] - Seawater radioisotope (234Th) and
carbon from sampling conducted at the Compass Station in Bedford Basin, Nova
Scotia, Canada from 2021 to 2024 (Ocean Frontier Institute Seed Fund Grant:
Bedford Basin 2019) Subscribe RSS
Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_988716_v1)
Range: longitude = -63.642 to -63.642°E, latitude = 44.692 to 44.692°N, depth = 5.0 to 68.0m
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Sampling_Date {
    String long_name "Sampling_date";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 44.692, 44.692;
    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 -63.642, -63.642;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Int32 actual_range 5, 68;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  Th_234_T_CONC {
    Float32 actual_range 0.1, 1.1;
    String long_name "Th_234_t_conc";
    String units "decays per minute per liter";
  }
  Unc_Th_234_T_CONC {
    Float32 actual_range 0.02, 0.1;
    String long_name "Unc_th_234_t_conc";
    String units "decays per minute per liter";
  }
  U_238_CONC {
    Float32 actual_range 2.02, 2.15;
    String long_name "U_238_conc";
    String units "decays per minute per liter";
  }
  Unc_U_238_CONC {
    Float32 actual_range 0.05, 0.05;
    String long_name "Unc_u_238_conc";
    String units "decays per minute per liter";
  }
  Part_Th_CONC {
    Float32 actual_range 0.1, 1.5;
    String long_name "Part_th_conc";
    String units "decays per minute per liter";
  }
  Unc_Part_Th_CONC {
    Float32 actual_range 0.1, 0.5;
    String long_name "Unc_part_th_conc";
    String units "decays per minute per liter";
  }
  Large_POC {
    Float32 actual_range 0.01, 5.36;
    String long_name "Large_poc";
    String units "micromoles carbon per liter";
  }
  Unc_Large_POC {
    Float32 actual_range 0.0, 0.05;
    String long_name "Unc_large_poc";
    String units "micromoles carbon per liter";
  }
  Small_POC {
    Float32 actual_range 0.18, 12.4;
    String long_name "Small_poc";
    String units "micromoles carbon per liter";
  }
  Unc_Small_POC {
    Float32 actual_range 0.1, 0.2;
    String long_name "Unc_small_poc";
    String units "micromoles carbon per liter";
  }
 }
  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.988716.1";
    Float64 Easternmost_Easting -63.642;
    Float64 geospatial_lat_max 44.692;
    Float64 geospatial_lat_min 44.692;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -63.642;
    Float64 geospatial_lon_min -63.642;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 68.0;
    Float64 geospatial_vertical_min 5.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2026-04-02T18:43:11Z (local files)
2026-04-02T18:43:11Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_988716_v1.das";
    String infoUrl "https://osprey.bco-dmo.org/dataset/988716";
    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 44.692;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.692;
    String summary "This dataset includes seawater radioisotope (234Th) and particulate organic carbon (POC) data collected at the Compass Station in Bedford Basin, Nova Scotia, Canada at six time periods between 2021 and 2024. Niskin bottles (2 to 10 liters (L)) were used to obtain the water samples. Two liters of water were used for total 234Th. In situ pumps (McLane Laboratories) were also deployed to pump ~30 L of water and collect samples for particulate 234Th and POC. Two in-line filters were used: >51 micrometers (µm) (large particle fraction) and ~1 µm (small particle fraction). Filters were analyzed via non-destructive beta counting (234Th) and then for carbon content.";
    String title "[Bedford Basin 2021-2024 Seawater 234Th] - Seawater radioisotope (234Th) and carbon from sampling conducted at the Compass Station in Bedford Basin, Nova Scotia, Canada from 2021 to 2024 (Ocean Frontier Institute Seed Fund Grant: Bedford Basin 2019)";
    Float64 Westernmost_Easting -63.642;
  }
}

 

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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