ERDDAP > tabledap > Make A Graph ?

Dataset Title:  Waves - glv Subscribe RSS
Institution:  Coastal and Marine Hazards and Resources Program, U.S. Geological Survey   (Dataset ID: Waves_glv_nc)
Range: longitude = -162.95218 to -162.95135°E, latitude = 64.48205 to 64.48242°N, time = 2024-09-11T00:25:00Z to 2024-10-01T20:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background | Data Access Form | Files
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
-1+1
 
Constraints ? Optional
Constraint #1 ? 		Optional
Constraint #2 ?
       
       
       
       
       
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")
 
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   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
 
(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:
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    Click on the map to specify a new center point. ?
Zoom: 
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[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 {
  station_id {
    String actual_range 
"Waves_glv_nc
Waves_glv_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  significantWaveHeight {
    Float64 actual_range 0.05, 1.38;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  peakPeriod {
    Float64 actual_range 1.42, 25.6;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String units "s";
  }
  meanPeriod {
    Float64 actual_range 1.72, 12.14;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_mean_period";
    String units "s";
  }
  peakDirection {
    Float64 actual_range 0.428, 359.999;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_from_direction_at_variance_spectral_density_maximum";
    String units "degree";
  }
  peakDirectionalSpread {
    Float64 actual_range 15.749, 80.989;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum";
    String units "degree";
  }
  meanDirection {
    Float64 actual_range 0.275, 359.521;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_from_direction";
    String units "degree";
  }
  meanDirectionalSpread {
    Float64 actual_range 28.432, 80.778;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_wave_directional_spread";
    String units "degree";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 64.48205, 64.48242;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -162.95218, -162.95135;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  processing_source {
    String ioos_category "Other";
  }
  surfaceTemp {
    Float64 actual_range 5.48, 10.74;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "sea_surface_temperature";
    String units "degree_C";
  }
  barometerData {
    Float64 actual_range 979.7, 1016.1;
    String FillValue "nan";
    String ioos_category "Other";
    String standard_name "air_pressure";
    String units "hPa";
  }
  feature_type_instance {
    String ioos_category "Identifier";
    String long_name "station code";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7260143e+9, 1.7278128e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    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";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_url "https://www.usgs.gov";
    Float64 Easternmost_Easting -162.95135;
    String experiment_name "Waves";
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 64.48242;
    Float64 geospatial_lat_min 64.48205;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -162.95135;
    Float64 geospatial_lon_min -162.95218;
    String geospatial_lon_units "degrees_east";
    String history 
"Generated using sofar-buoy.py
2025-04-06T13:12:41Z (local files)
2025-04-06T13:12:41Z https://cmgds.marine.usgs.gov/tabledap/Waves_glv_nc.das";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String naming_authority "gov.usgs.cmgp";
    Float64 Northernmost_Northing 64.48242;
    String original_folder "waves";
    String publisher_url "https://www.usgs.gov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 64.48205;
    String summary "Unspecified";
    String time_coverage_end "2024-10-01T20:00:00Z";
    String time_coverage_start "2024-09-11T00:25:00Z";
    String title "Waves - glv";
    Float64 Westernmost_Easting -162.95218;
  }
}

 

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.