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Dataset Title:  MI Wave Forecast at buoy locations   RSS
Institution:  Marine Institute   (Dataset ID: imiWaveBuoyForecast)
Range: longitude = -15.88 to -5.425°E, latitude = 51.2166 to 55.0°N, time = 2025-10-31T00:00:00Z to 2025-11-09T00:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | 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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7618688e+9, 1.7626464e+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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -15.88, -5.425;
    String axis "X";
    String ioos_category "Location";
    String long_name "longitude in decimal degree east";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 51.2166, 55.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "latitude in decimal degree north";
    String standard_name "latitude";
    String units "degrees_north";
  }
  stationID {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  significant_wave_height {
    Float64 actual_range 0.15869627241045237, 8.900723303668201;
    String ioos_category "Surface Waves";
    String long_name "significant wave height";
    String units "m";
  }
  mean_wave_period {
    Float64 actual_range 2.027192013338208, 10.661641298793256;
    String ioos_category "Surface Waves";
    String long_name "mean absolute zero-crossing period (TM02)";
    String units "s";
  }
  mean_wave_direction {
    Float64 actual_range 0.2801600843667984, 341.7236852645874;
    String ioos_category "Surface Waves";
    String long_name "mean wave to direction";
    String units "degrees";
  }
  wave_power_per_unit_crest_length {
    Float64 actual_range 0.0514539282894889, 456.99972084924775;
    String ioos_category "Surface Waves";
    String long_name "wave power per unit crest length";
    String units "kW/m";
  }
  peak_period {
    Float32 actual_range 2.4964142, 15.973388;
    String comment "tp peak period";
    String ioos_category "Surface Waves";
    String long_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String standard_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String units "s";
  }
  energy_period {
    Float32 actual_range 2.5986512, 13.3785515;
    String ioos_category "Surface Waves";
    String long_name "Wave energy period";
    String standard_name "sea_surface_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment";
    String units "s";
  }
  project_code {
    String ioos_category "Other";
    String long_name "project_code";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "stationID, longitude, latitude";
    String Conventions "COARDS, CF-1.4, Unidata Dataset Discovery v1.0";
    Float64 Easternmost_Easting -5.425;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 55.0;
    Float64 geospatial_lat_min 51.2166;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -5.425;
    Float64 geospatial_lon_min -15.88;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-11-04T09:37:29Z http://www.marine.ie/
2025-11-04T09:37:29Z https://erddap.marine.ie/tabledap/imiWaveBuoyForecast.das";
    String infoUrl "http://milas.marine.ie/thredds/";
    String institution "Marine Institute";
    String keywords "Earth Science > Tide";
    String license "Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/)";
    String Metadata_Conventions "COARDS, CF-1.4, Unidata Dataset Discovery v1.0";
    Float64 Northernmost_Northing 55.0;
    String sourceUrl "http://www.marine.ie/";
    Float64 Southernmost_Northing 51.2166;
    String subsetVariables "stationID, longitude, latitude, project_code";
    String summary "MI Wave Forecast at buoy locations";
    String time_coverage_end "2025-11-09T00:00:00Z";
    String time_coverage_start "2025-10-31T00:00:00Z";
    String title "MI Wave Forecast at buoy locations";
    Float64 Westernmost_Easting -15.88;
  }
}

 

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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