ERDDAP
Ocean Observing System

Compliance Complete Report
Compliance Dataset Results

CF 1.8 IOOS Compliance Report on ERDDAP datasets

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Dataset Title:	Bedford Basin Time Series Oxygen Winkler and Chlorophyll Data
Institution:	OFI (Dataset ID: bbts_water_samples)
Range:	longitude = 44.691765 to 44.691765°E, latitude = 63.64079 to 63.64079°N, depth = 1.0 to 65.0m, time = 2008-11-19 to 2024-10-02
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
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 {
  collection_date {
    Float64 actual_range 1.2270672e+9, 1.727838e+9;
    String calendar "standard";
    String cf_role "timeseries_id";
    String ioos_category "Time";
    String long_name "The date of collection of the water samples.";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  analysis_date {
    Float64 actual_range 1.2445164e+9, 1.7280108e+9;
    String calendar "standard";
    String ioos_category "Time";
    String long_name "The date lab analysis was performed on samples.";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 63.64079066666665, 63.64079066666665;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "latitude: is the current vector latitude in fractional degrees with positive North";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 44.691765833333314, 44.691765833333314;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "longitude: is the current vector longitude in fractional degrees with positive East";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Int32 actual_range 1, 65;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String comments "The depth that the water sample was collected at.";
    String ioos_category "Location";
    String long_name "Depth below surface";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  dissolved_o2 {
    Float64 _FillValue NaN;
    Float64 actual_range -0.032042557269100366, 11.582754622914358;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String comments "Tests are run three times and the average value of the three is used.";
    String coverage_content_type "physicalMeasurement";
    String instrument "Obtained via Winkler method (Lab)";
    String ioos_category "Dissolved O2";
    String long_name "Concentration of oxygen";
    String standard_name "fractional_saturation_of_oxygen_in_sea_water";
    String units "ml/L";
  }
  chlorophyll_a_welschmeyer {
    Float64 _FillValue NaN;
    Float64 actual_range 0.004874307692307692, 137.0059829059829;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String comments "Tests are run three times and the average value of the three is used.";
    String coverage_content_type "physicalMeasurement";
    String identifier "chlorophyll_a_welschmeyer_avg_chl";
    String instrument "Obtained via Welschmeyer method (Lab)";
    String ioos_category "Ocean Color";
    String long_name "Concentration of Chlorophyll a in sea water as determined by Welschmeyer method in the lab";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String units "µg/l";
  }
  chlorophyll_a_acid {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 104.27555988315481;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String comments "Tests are run three times and the average value of the three is used.";
    String coverage_content_type "physicalMeasurement";
    String identifier "chlorophyll_a_acid_avg_chl";
    String instrument "Obtained via Acid method (Lab)";
    String ioos_category "Ocean Color";
    String long_name "Concentration of Chlorophyll a in sea water as determined by Acid method in the lab";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String units "µg/l";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2270672e+9, 1.727838e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time identifies day, month, and year that the water samples used were collected.";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables 
"collection_date
time
latitude
longitude";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_name "CEOTR";
    String creator_type "institution";
    String creator_url "https://www.dal.ca/";
    Float64 Easternmost_Easting 44.691765833333314;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 63.64079066666665;
    Float64 geospatial_lat_min 63.64079066666665;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 44.691765833333314;
    Float64 geospatial_lon_min 44.691765833333314;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 65.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Lab data gathered from water samples from Bedford Basin, Nova Scotia.
2024-11-21T08:50:12Z (local files)
2024-11-21T08:50:12Z https://data.ceotr.ca/tabledap/bbts_water_samples.das";
    String id "bb1-oxygen-chlorophyll";
    String infoUrl "https://ceotr.ocean.dal.ca/bbasin";
    String institution "OFI";
    String keywords "acid, analysis, analysis_date, basin, bedford, below, chemistry, chlorophyll, chlorophyll_a_acid, chlorophyll_a_welschmeyer, collected, collection, collection_date, color, concentration, current, data, date, day, degrees, depth, determined, dissolved, dissolved o2, dissolved_o2, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Oxygen, east, fractional, fractional_saturation_of_oxygen_in_sea_water, identifier, identifies, lab, latitude, longitude, mass, mass_concentration_of_chlorophyll_a_in_sea_water, method, month, north, O2, ocean, ocean color, oceans, ofi, oxygen, performed, positive, row, samples, saturation, science, sea, seawater, series, surface, time, time series, used, vector, water, welschmeyer, winkler, with, year";
    String keywords_vocabulary "GCMD Science Keywords";
    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 63.64079066666665;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 63.64079066666665;
    String standard_name_vocabulary "CF Standard Name Table v84";
    String subsetVariables "collection_date, latitude, longitude, time";
    String summary "Oxygen Winkler and Chlorophyll data otained through Winkler, Welschmeyer, and Acid methods. The samples used in this data were gathered as part of the Bedford Basin Time Series project. Samples are taken from the Bedford Basin station (BB1) at coordinates: 44.6917658333, -63.6407906667.";
    String testOutOfDate "now-111days";
    String time_coverage_end "2024-10-02";
    String time_coverage_start "2008-11-19";
    String title "Bedford Basin Time Series Oxygen Winkler and Chlorophyll Data";
    Float64 Westernmost_Easting 44.691765833333314;
  }
}

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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