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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  GFS weather forecast at selected locations   RSS
Institution:  NOAA/NCEP   (Dataset ID: GFS-WeatherTimeSeries)
Range: longitude = -10.0 to -6.0°E, latitude = 51.5 to 55.5°N, time = 2018-12-16T00:00:00Z to 2018-12-22T00:00:00Z
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 1.5449184e+9, 1.5454368e+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 -10.0, -6.0;
    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 51.5, 55.5;
    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";
  }
  AtmosphericPressure {
    Float64 actual_range 987.6517333984375, 1012.5585327148438;
    String colorBarMaximum "1040.0";
    String colorBarMinimum "960.0";
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure_at_sea_level";
    String units "mb";
  }
  WindSpeed {
    Float64 actual_range 4.984644262867295, 43.77957556243324;
    String colorBarMaximum "100.0";
    String colorBarMinimum "1.0";
    String ioos_category "Wind";
    String long_name "WindSpeed";
    String standard_name "wind_speed";
    String units "kn";
  }
  WindDirection {
    Float64 actual_range 139.27309968711288, 292.2700754260925;
    String colorBarMaximum "359.0";
    String colorBarMinimum "0.0";
    String ioos_category "Wind";
    String long_name "WindDirection";
    String standard_name "wind_from_direction";
    String units "degrees_true";
  }
 }
  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 -6.0;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 55.5;
    Float64 geospatial_lat_min 51.5;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -6.0;
    Float64 geospatial_lon_min -10.0;
    String geospatial_lon_units "degrees_east";
    String history 
"2018-12-17T05:27:19Z http://www.marine.ie/
2018-12-17T05:27:19Z https://erddap.marine.ie/tabledap/GFS-WeatherTimeSeries.das";
    String infoUrl "http://www.emc.ncep.noaa.gov/index.php?branch=GFS";
    String institution "NOAA/NCEP";
    String keywords "Earth Science > Weather";
    String license "see background";
    String Metadata_Conventions "COARDS, CF-1.4, Unidata Dataset Discovery v1.0";
    Float64 Northernmost_Northing 55.5;
    String sourceUrl "http://www.marine.ie/";
    Float64 Southernmost_Northing 51.5;
    String subsetVariables "stationID, longitude, latitude";
    String summary "GFS weather forecast at selected locations";
    String time_coverage_end "2018-12-22T00:00:00Z";
    String time_coverage_start "2018-12-16T00:00:00Z";
    String title "GFS weather forecast at selected locations";
    Float64 Westernmost_Easting -10.0;
  }
}

 

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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