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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  DRIFTERS: Last 10-day locations Subscribe RSS
Institution:  AOML   (Dataset ID: DRIFTERS_LAST_10_DAYS_LOCATIONS_TYPE)
Range: longitude = -179.986 to 179.994°E, latitude = -77.447 to 88.339°N, time = 2024-03-18T00:00:00Z to 2024-03-28T12:00:00Z
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 1.71072e+9, 1.7116272e+9;
    String axis "T";
    String calendar "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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -77.447, 88.339;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -179.986, 179.994;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  platform_name {
    String ioos_category "Identifier";
    String long_name "Platform Name";
  }
  pressure {
    Float32 _FillValue -1.0;
    Float32 actual_range 95150.0, 105470.0;
    Float64 colorBarMaximum 105000.0;
    Float64 colorBarMinimum 95000.0;
    String ioos_category "Pressure";
    String long_name "Pressure reduced to mean sea level";
    String standard_name "air_pressure_at_mean_sea_level";
    String units "Pa";
  }
  wave_height {
    Float32 _FillValue -1.0;
    Float32 actual_range 0.0, 9.17;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Wave Height";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  wave_period {
    Float32 _FillValue -1.0;
    Float32 actual_range 0.0, 15.1;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Wave Period";
    String standard_name "sea_surface_wave_significant_period";
    String units "s";
  }
  type {
    Int16 _FillValue -1;
    String _Unsigned "true";
    Int16 actual_range 0, 3;
    Int32 colorBarMaximum 3;
    Int32 colorBarMinimum 0;
    String comment "0:Pressure and Wave;1:Pressure;2:Wave;3:no Pressure and no Wave";
    String flag_values "0,1,2,3";
    String ioos_category "Unknown";
    String long_name "Type of Drifter";
    String standard_name "type_drifter_by_measurement";
    String units "None";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String contact_email "Joaquin.Trinanes@noaa.gov";
    String contact_info "Atlantic Oceanographic and Meteorological Laboratory (AOML) 4301 Rickenbacker Causeway Miami, FL 33149";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "Joaquin.Trinanes@noaa.gov";
    String creator_name "Physical Oceanography Division (PhOD) AOML";
    String creator_type "NOAA_AOML";
    String creator_url "http://www.aoml.noaa.gov/phod/";
    Float64 Easternmost_Easting 179.994;
    String featureType "Point";
    Float64 geospatial_lat_max 88.339;
    Float64 geospatial_lat_min -77.447;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 179.994;
    Float64 geospatial_lon_min -179.986;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-03-28T16:48:45Z (local files)
2024-03-28T16:48:45Z http://cwcgom.aoml.noaa.gov:8080/tabledap/DRIFTERS_LAST_10_DAYS_LOCATIONS_TYPE.das";
    String infoUrl "http://www.aoml.noaa.gov/phod/";
    String institution "AOML";
    String keywords "10-day, air, air_pressure_at_mean_sea_level, aoml, atlantic, course, data, date, day, division, drifters, earth, Earth Science > Oceans > Ocean Waves > Significant Wave Height, height, laboratory, latitude, level, locations, longitude, mean, meteorological, name, noaa, ocean, oceanographic, oceanography, oceans, period, phod, physical, platform, platform_name, pressure, reduced, science, sea, sea_surface_wave_significant_height, sea_surface_wave_significant_period, significant, surface, surface waves, time, type, wave, wave_height, wave_period, waves";
    String keywords_vocabulary "GCMD Science Keywords";
    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, OAR, 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.";
    Float64 Northernmost_Northing 88.339;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -77.447;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "type";
    String summary "DRIFTER location information provided by Physical Oceanography Division (PhOD)/Atlantic Oceanographic & Meteorological Laboratory (AOML).";
    String testOutOfDate "now-2days";
    String time_coverage_end "2024-03-28T12:00:00Z";
    String time_coverage_start "2024-03-18T00:00:00Z";
    String title "DRIFTERS: Last 10-day locations";
    Float64 Westernmost_Easting -179.986;
  }
}

 

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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