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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  EPA Beaches Model Predicted Tide Level   RSS
Institution:  Marine Institute   (Dataset ID: IMI-TidePrediction_epa)
Range: longitude = -10.40542 to -6.007815°E, latitude = 51.45523 to 55.30617°N, time = 2018-01-01T00:00:00Z to 2021-01-01T00:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
-1 +1
 
Constraints ? Optional
Constraint #1 ?
Optional
Constraint #2 ?
       
       
       
       
       
 
Server-side Functions ?
 distinct() ?
? (" ")
 
Graph Settings
Marker Type:   Size: 
Color: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   Ascending: 
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Zoom: 
Time range:    <<    -    +    >>
[The graph you specified. Please be patient.]

 

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 1.5147648e+9, 1.6094592e+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 -10.40542, -6.007815;
    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 51.45523, 55.30617;
    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_height {
    Float64 actual_range -2.76, 2.79;
    String ioos_category "Sea Level";
    String long_name "sea surface height relative to Model MSL";
    String units "metres";
  }
 }
  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";
    String defaultDataQuery "&time>=now-1day&time<=now+2days";
    String defaultGraphQuery "longitude,latitude,sea_surface_height&time>=now-1day&time<=now+2days&&.marker=5|5";
    Float64 Easternmost_Easting -6.007815;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 55.30617;
    Float64 geospatial_lat_min 51.45523;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -6.007815;
    Float64 geospatial_lon_min -10.40542;
    String geospatial_lon_units "degrees_east";
    String history 
"2018-12-17T05:01:21Z http://www.marine.ie/
2018-12-17T05:01:21Z https://erddap.marine.ie/tabledap/IMI-TidePrediction_epa.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 55.30617;
    String sourceUrl "http://www.marine.ie/";
    Float64 Southernmost_Northing 51.45523;
    String subsetVariables "stationID, longitude, latitude";
    String summary "MI Modelled Tide Predictions for EPA Beach stations";
    String time_coverage_end "2021-01-01T00:00:00Z";
    String time_coverage_start "2018-01-01T00:00:00Z";
    String title "EPA Beaches Model Predicted Tide Level";
    Float64 Westernmost_Easting -10.40542;
  }
}

 

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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