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Dataset Title:  SLL-3425 Boston Harbor Entrance Buoy Subscribe RSS
Institution:  Stone Living Lab   (Dataset ID: SLL-3425)
Range: longitude = -70.91984 to -70.91984°E, latitude = 42.340946 to 42.340946°N, altitude = -4.0 to 103.7m, time = 2026-05-06T00:00:00Z to 2026-05-21T18:20:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
Graph Type:  ?
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Y Axis: 
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Constraints ? Optional
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Server-side Functions ?
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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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7780256e+9, 1.7793876e+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 time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  stationID {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -100000.0;
    Float64 actual_range 42.3409462, 42.3409462;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -100000.0;
    Float64 actual_range -70.919838, -70.919838;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 _FillValue -100000.0;
    Float64 actual_range -4.0, 103.7;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  course_over_ground {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.2, 358.5;
    String ioos_category "Other";
    String long_name "Course Over Ground";
    String units "degrees_true";
  }
  speed_over_ground {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 117.0;
    String ioos_category "Other";
    String long_name "Speed Over Ground";
    String units "km/h";
  }
  heading {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.6, 359.4;
    String ioos_category "Other";
    String long_name "Heading";
    String standard_name "platform_orientation";
    String units "degrees";
  }
  heading_true {
    Float64 _FillValue -100000.0;
    Float64 actual_range 1.0, 360.0;
    String ioos_category "Other";
    String long_name "True Heading";
    String units "degrees_true";
  }
  barometric_pressure {
    Float64 _FillValue -100000.0;
    Float64 actual_range 29.7, 30.3;
    String ioos_category "Pressure";
    String long_name "Relative Barometric Pressure";
    String standard_name "air_pressure";
    String units "inHg";
  }
  air_temperature {
    Float64 _FillValue -100000.0;
    Float64 actual_range 7.3, 35.2;
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  relative_humidity {
    Float64 _FillValue -100000.0;
    String ioos_category "Meteorology";
    String long_name "Relative Humidity";
    String standard_name "relative_humidity";
    String units "percent";
  }
  dewpoint {
    Float64 _FillValue -100000.0;
    String ioos_category "Meteorology";
    String long_name "Dewpoint Temperature";
    String standard_name "dew_point_temperature";
    String units "degree_C";
  }
  wind_from_direction {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 360.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
    String units "degrees_true";
  }
  wind_from_direction_magnetic {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 359.0;
    String ioos_category "Wind";
    String long_name "Magnetic Wind Direction";
    String units "degrees";
  }
  wind_speed {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 34.9;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
    String units "m/s";
  }
  significant_wave_height {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 0.59;
    String ioos_category "Surface Waves";
    String long_name "Significant Wave Height";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  dominant_wave_period {
    Float64 _FillValue -100000.0;
    Float64 actual_range 1.4, 11.8;
    String ioos_category "Surface Waves";
    String long_name "Dominant Wave Period";
    String standard_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String units "s";
  }
  dominant_wave_direction {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 360.0;
    String ioos_category "Surface Waves";
    String long_name "Dominant Wave Direction";
    String standard_name "sea_surface_wave_from_direction";
    String units "degrees_true";
  }
  mean_wave_direction {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 360.0;
    String ioos_category "Surface Waves";
    String long_name "Mean Wave Direction";
    String standard_name "sea_surface_wave_mean_from_direction";
    String units "degrees_true";
  }
  max_wave_height {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 0.93;
    String ioos_category "Surface Waves";
    String long_name "Maximum Wave Height";
    String standard_name "sea_surface_wave_maximum_height";
    String units "m";
  }
  wave_height_h10 {
    Float64 _FillValue -100000.0;
    Float64 actual_range 0.0, 0.76;
    String ioos_category "Surface Waves";
    String long_name "Mean Height of Highest Tenth of Waves";
    String standard_name "sea_surface_wave_mean_height_of_highest_tenth";
    String units "m";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, stationID";
    String Conventions "CF-1.10, ACDD-1.3, IOOS-1.2, COARDS";
    String creator_country "United States";
    String creator_name "Stone Living Lab";
    String creator_type "organization";
    String creator_url "https://www.wqdatalive.com";
    Float64 Easternmost_Easting -70.919838;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 42.3409462;
    Float64 geospatial_lat_min 42.3409462;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.919838;
    Float64 geospatial_lon_min -70.919838;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 103.7;
    Float64 geospatial_vertical_min -4.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String gts_ingest "true";
    String history 
"2026-05-25T18:45:38Z Data are served via the WQData Live API
2026-05-25T18:45:38Z http://data.neracoos.org/tabledap/SLL-3425.das";
    String infoUrl "https://www.wqdatalive.com";
    String institution "Stone Living Lab";
    String ioos_regional_association "NERACOOS";
    String ioos_regional_association_url "https://neracoos.org/";
    String keywords "air temperature, barometric pressure, boston harbor, buoy, coastal, dewpoint, humidity, meteorology, neracoos, nexsens, ocean, sll, stone living lab, surface waves, wind";
    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 42.3409462;
    String publisher_email "info@neracoos.org";
    String publisher_name "Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS)";
    String publisher_phone "(603) 319 1785";
    String publisher_url "http://www.neracoos.org/";
    String sourceUrl "Data are served via the WQData Live API";
    Float64 Southernmost_Northing 42.3409462;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "longitude, latitude";
    String summary "Meteorological and oceanographic observations from the Stone Living Lab Nexsens SLL-3425 buoy at the Boston Harbor Entrance (latitude: 42.34, longitude: -70.92). Measurements include atmospheric pressure, air temperature, relative humidity, dewpoint, wind, and wave parameters collected at approximately 20-minute intervals via the WQData Live platform. Ocean observation data are served through the Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS).";
    String time_coverage_end "2026-05-21T18:20:00Z";
    String time_coverage_start "2026-05-06T00:00:00Z";
    String title "SLL-3425 Boston Harbor Entrance Buoy";
    Float64 Westernmost_Easting -70.919838;
  }
}

 

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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