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Dataset Title:	Observation temps réel des bouées Viking du PMZA (provisoire) \| AZMP Viking Buoy Observations (Provisional)
Institution:	DFO-MPO (Dataset ID: mpoPmzaVikingBuoysTimeseries)
Range:	longitude = -124.7715 to -52.5862°E, latitude = 44.3493 to 49.7347°N, time = 2020-07-09T05:00:00Z to 2023-11-25T14:30:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| 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:

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 {
  station_id {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station Id";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5942708e+9, 1.7009226e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  obs_lat {
    Float32 actual_range 44.34417, 9.96921e+36;
    String long_name "latitude observation";
    String standard_name "obs_lat";
    String units "Degrees north";
  }
  obs_lon {
    Float32 actual_range -124.9027, 9.96921e+36;
    String long_name "longitude observation";
    String standard_name "obs_lon";
    String units "Degrees east";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -124.7715, -52.5862;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "longitude de la station";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 44.3493, 49.7347;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "latitude de la station";
    String standard_name "latitude";
    String units "degrees_north";
  }
  WSPD_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 27.5;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String comment "Conversion from km/h to m/s";
    String coordinates "longitude latitude time station_id";
    String long_name "Horizontal Wind speed (3.1 m)";
    String standard_name "wind_speed";
    String units "m/s";
  }
  GSPD_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 38.88889;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.0;
    String comment "Conversion from km/h to m/s";
    String coordinates "longitude latitude time station_id";
    String long_name "Gust Wind Speed (3.1m)";
    String standard_name "wind_speed_of_gust";
    String units "m/s";
  }
  WDIR_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 359.0;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Wind Direction relative to North (T) (3.1m)";
    String standard_name "northward_wind";
    String units "degrees";
  }
  DRYT_01 {
    Float32 _FillValue NaN;
    Float32 actual_range -4.2, 94.1;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String comment "Température de l'air";
    String coordinates "longitude latitude time station_id";
    String long_name "Dry Bulb Temperature (3.1m)";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  RELH_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 100.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String comment "Humidité relative";
    String coordinates "longitude latitude time station_id";
    String long_name "Relative Humidity";
    String standard_name "relative_humidity";
    String units "percent";
  }
  ATMP_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 500.1, 1499.8;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Atmospheric Pressure";
    String standard_name "air_pressure";
    String units "hPa";
  }
  TE90_01 {
    Float32 _FillValue NaN;
    Float32 actual_range -9.86, 99.67;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Temperature (1990 scale)";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  PSAL_01 {
    Float32 _FillValue NaN;
    Float32 actual_range -8.89, 98.22;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Practical Salinity";
    String standard_name "sea_water_practical_salinity";
  }
  DENS_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 999.85, 1079.91;
    Float64 colorBarMaximum 28.0;
    Float64 colorBarMinimum 20.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Sea Density";
    String standard_name "sea_water_density";
    String units "kg/m^3";
  }
  FLOR_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 29.81;
    String coordinates "longitude latitude time station_id";
    String long_name "Fluorescence";
    String units "mg/m^3";
  }
  SPAR {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    String coordinates "longitude latitude time station_id";
    String long_name "Surface Photosynthetic active radiation";
    String units "microEinstein/s/m^2";
  }
  ACO2_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 332.2, 1.0e+36;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Partial pressure of carbon dioxide in the atmosphere";
    String standard_name "air_pressure";
    String units "ppm";
  }
  PCO2_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    String coordinates "longitude latitude time station_id";
    String long_name "Partial pressure of carbon dioxide in the water body";
    String standard_name "surface_partial_pressure_of_carbom_dioxide_in_sea_water";
    String units "ppm";
  }
  PHPH_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0753, 9.9055;
    String coordinates "longitude latitude time station_id";
    String long_name "Hydrogen Ion Concentration (pH)";
    String units "NBS scale";
  }
  VRMS_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    Float64 colorBarMaximum 0.1;
    Float64 colorBarMinimum 0.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Wave mean height";
    String standard_name "sea_surface_wave_mean_height";
    String units "m";
  }
  VTDH_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "longitude latitude time station_id";
    String long_name "Significant Wave height";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  VMXL_01 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    String coordinates "longitude latitude time station_id";
    String long_name "Wave maximum height";
    String standard_name "sea_surface_wave_maximum_height";
    String units "m";
  }
  HCSP {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    String coordinates "longitude latitude time station_id";
    String long_name "ADCP speed of current at 6m";
    String units "m/s";
  }
  HCDT {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0e+36;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "longitude latitude time station_id";
    String long_name "ADCP direction of current at 6m";
    String units "degrees";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.9.3-development,hdf5=1.12.2";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    String Conventions "CF-1.8 COARDS ACDD-1.3";
    String creator_email "info@dfo-mpo.gc.ca";
    String creator_name "Pêches et océans Canada | Fisheries and Oceans Canada";
    String creator_type "institution";
    String creatorID "https://ror.org/02qa1x782";
    String defaultDataQuery "&orderBy(\"time\")";
    String description "Buoy observations from AZMP_HLX";
    String DOI "https://doi.org/10.26071/ogsl-06f7045a-51a5";
    Float64 Easternmost_Easting -52.5862;
    String feature_type "timeSeries";
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 49.7347;
    Float64 geospatial_lat_min 44.3493;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -52.5862;
    Float64 geospatial_lon_min -124.7715;
    String geospatial_lon_units "degrees_east";
    String history 
"Created from dat file by buoy_to_nc.py on 20231125
2023-11-29T19:17:06Z (local files)
2023-11-29T19:17:06Z https://erddap.ogsl.ca/tabledap/mpoPmzaVikingBuoysTimeseries.das";
    String infoUrl "https://catalogue.ogsl.ca/fr/dataset/ca-cioos_06f7045a-51a5-474b-9c27-7670b737e4f1";
    String institution "DFO-MPO";
    String keywords "3.1m, ACO2_01, acoustic, active, adcp, air, air_pressure, air_temperature, atmosphere, atmospheric, ATMP_01, body, bouees, bulb, buoy, carbon, concentration, current, currents, data, DENS_01, density, department, dfo, dioxide, direction, doppler, dry, DRYT_01, earth, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Salinity/Density > Density, Earth Science > Oceans > Salinity/Density > Salinity, fisheries, FLOR_01, fluorescence, GSPD_01, gust, HCDT, HCSP, height, horizontal, humidity, hydrogen, ion, latitude, level, longitude, maximum, mean, measurements, mpo, mpo-dfo, north, northward, northward_wind, obs, obs_lat, obs_lon, observation, observations, ocean, oceans, ogsl, partial, PCO2_01, photosynthetic, PHPH_01, pmza, practical, pressure, profiler, PSAL_01, radiation, relative, relative_humidity, RELH_01, salinity, scale, science, sea, sea_surface_temperature, sea_surface_wave_maximum_height, sea_surface_wave_mean_height, sea_surface_wave_significant_height, sea_water_density, sea_water_practical_salinity, seawater, significant, SPAR, speed, static, station, surface, TE90_01, temperature, time, timeseries, vapor, vas, velocity, VMXL_01, VRMS_01, VTDH_01, water, wave, waves, WDIR_01, wind, wind_speed, wind_speed_of_gust, winds, WSPD_01";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Open Government Licence - Canada | Licence du gouvernement ouvert - Canada";
    String licenseUrl "https://open.canada.ca/en/open-government-licence-canada";
    String nom_station "Halifax";
    Float64 Northernmost_Northing 49.7347;
    String platform "moored surface buoy";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String publisher_email "info@ogsl.ca";
    String publisher_name "St. Lawrence Global Observatory | Observatoire global du Saint-Laurent";
    String publisherID "https://ror.org/03wfagk22";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.3493;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "station_id";
    String summary "AZMP Viking Buoy Observations (Provisional). No quality control was performed on this dataset | Observation temps réel des bouées Viking du PMZA (provisoire) Aucun contrôle de qualité n'a été effectué sur ces données.";
    String time_coverage_end "2023-11-25T14:30:00Z";
    String time_coverage_start "2020-07-09T05:00:00Z";
    String title "Observation temps réel des bouées Viking du PMZA (provisoire) | AZMP Viking Buoy Observations (Provisional)";
    Float64 Westernmost_Easting -124.7715;
  }
}

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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