Marine Institute ERDDAP Server
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Make A Graph

Dataset Title:	Test SmartBay Airmar Weather Station Data
Institution:	Smartbay (Dataset ID: misbwxAirmar)
Range:	longitude = -9.26659 to 0.0°E, latitude = 0.0 to 53.23851°N, time = 2012-01-01T01:00:00Z to 2015-01-01T01:00:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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Server-side Functions

distinct()

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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 {
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -9.26659, 0.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 0.0, 53.23851;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.3253796e+9, 1.420074e+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";
  }
  station_id {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  airTemperature {
    String colorBarMaximum "30.0";
    String colorBarMinimum "-10.0";
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    Float64 missing_value -999.0;
    String standard_name "air_temperature";
    String units "degree_C";
  }
  BarometricPressure_mb {
    String colorBarMaximum "1030.0";
    String colorBarMinimum "970.0";
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure_at_sea_level";
    String units "mb";
  }
  WindDirection_DegTrue {
    String colorBarMaximum "359.0";
    String colorBarMinimum "0.0";
    String ioos_category "Wind";
    String long_name "WindDirection";
    Float64 missing_value -999.0;
    String standard_name "wind_from_direction";
    String units "degrees_true";
  }
  WindSpeed_Knot {
    String colorBarMaximum "200.0";
    String colorBarMinimum "1.8";
    String ioos_category "Wind";
    String long_name "WindSpeed";
    Float64 missing_value -999.0;
    String standard_name "wind_speed";
    String units "kn";
  }
  WindSpeed_msec {
    String colorBarMaximum "200.0";
    String colorBarMinimum "1.8";
    String ioos_category "Wind";
    String long_name "WindSpeed";
    Float64 missing_value -999.0;
    String standard_name "wind_speed";
    String units "meter second-1";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id, longitude, latitude";
    String Conventions "COARDS, CF-1.4, Unidata Dataset Discovery v1.0";
    Float64 Easternmost_Easting 0.0;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 53.23851;
    Float64 geospatial_lat_min 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 0.0;
    Float64 geospatial_lon_min -9.26659;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-10-24T22:41:04Z (source database)
2025-10-24T22:41:04Z https://erddap.marine.ie/tabledap/misbwxAirmar.das";
    String infoUrl "http://www.smartbay.ie";
    String institution "Smartbay";
    String license "Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/)";
    Float64 Northernmost_Northing 53.23851;
    String sourceUrl "(source database)";
    Float64 Southernmost_Northing 0.0;
    String standard_name_vocabulary "CF-12";
    String subsetVariables "station_id,longitude,latitude";
    String summary "Smartbay Airmar Weather Station Data";
    String time_coverage_end "2015-01-01T01:00:00Z";
    String time_coverage_start "2012-01-01T01:00:00Z";
    String title "Test SmartBay Airmar Weather Station Data";
    Float64 Westernmost_Easting -9.26659;
  }
}

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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