Data Access Form

Dataset Title:	Marine Institute Surge Observations at the Irish National Tide Gauge Network (INGTN) sites
Institution:	Marine Institute (Dataset ID: imiSurgeObservationINTGN)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Files \| Make a graph

To work correctly, this web page requires that JavaScript be enabled in your browser. Please:
1) Enable JavaScript in your browser:
      • Chrome: "Settings : Advanced : Privacy and security : Site Settings : JavaScript"
      • Firefox: (it should be always on!)"
      • Opera: "Settings : Websites : JavaScript"
      • Safari: "Safari : Preferences : Security : Enable JavaScript"
2) Reload this web page.

Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

time (UTC)

2006-10-26T13:00:00Z

2026-04-07T03:55:00Z

longitude (degrees_east)

latitude (degrees_north)

stationID

sea_surface_elevation_due_to_tide (metres)

-2.993

2.914

sea_surface_elevation_due_to_storm_surge (metres)

-34.371

2.804

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

File type: (more info)

(Documentation / Bypass this form )

(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.1618676e+9, 1.7755341e+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 -10.27732, -6.0683;
    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 51.559, 55.37168;
    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";
  }
  sea_surface_elevation_due_to_tide {
    Float64 _FillValue -9999.0;
    Float64 actual_range -2.993, 2.914;
    String ioos_category "Sea Level";
    String long_name "sea surface height due to tide";
    String units "metres";
  }
  sea_surface_elevation_due_to_storm_surge {
    Float64 _FillValue -9999.0;
    Float64 actual_range -34.371, 2.804;
    String ioos_category "Sea Level";
    String long_name "sea surface elevation due to storm surge";
    String units "metres";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.8.1,hdf5=1.10.8";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "stationID, longitude, latitude";
    String Conventions "COARDS, CF-1.4, Unidata Dataset Discovery v1.0";
    String defaultDataQuery "&time>=now-1day&time<=now+2days";
    String defaultGraphQuery "longitude,latitude,sea_surface_elevation_due_to_storm_surge&time>=now-1day&time<=now+2days&&.marker=5|5";
    Float64 Easternmost_Easting -6.0683;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 55.37168;
    Float64 geospatial_lat_min 51.559;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -6.0683;
    Float64 geospatial_lon_min -10.27732;
    String geospatial_lon_units "degrees_east";
    String history 
"2026-04-08T09:20:18Z http://www.marine.ie/
2026-04-08T09:20:18Z https://erddap.marine.ie/erddap/tabledap/imiSurgeObservationINTGN.html";
    String infoUrl "http://data.marine.ie/geonetwork/srv/eng/catalog.search#/metadata/ie.marine.data:dataset.2776";
    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 55.37168;
    String sourceUrl "http://www.marine.ie/";
    Float64 Southernmost_Northing 51.559;
    String subsetVariables "stationID, longitude, latitude";
    String summary "Sea level observations from the Irish National Tide Gauge Network (INTGN) are here decomposed into two components: (1) astronomical tide, and (2) surge. The astronomical tidal component is determined through harmonic analysis using precalculated tidal constituents for each of the INTGN sites. Then, the effects of meteorology on sea surface elevation (surge) is obtained by subtracting the tidal component from the total elevations. Data is provided at the same time stamps as for the INTGN observations, excluding those values which have been flagged as bad during visual QC.";
    String time_coverage_end "2026-04-07T03:55:00Z";
    String time_coverage_start "2006-10-26T13:00:00Z";
    String title "Marine Institute Surge Observations at the Irish National Tide Gauge Network (INGTN) sites";
    Float64 Westernmost_Easting -10.27732;
    String zapidox 
"[
 {
   \"name\": \"listActiveStations\",
   \"description\": \"Get a list of the stations which have reported data in the past week.\",
   \"query\": \"stationID&time%3E=now-7d&distinct()\",
   \"formats\": [\".csv0\"]
 }
]";
  }
}

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.