ERDDAP > tabledap > Make a Graph

Dataset Title:	MOSE-G directional wave sensor
Institution:	Liquid Robotics   (Dataset ID: DatawellMOSE)
Range:	longitude = -156.21619 to 0.0°E, latitude = 0.0 to 37.809647°N, time = 2000-01-13T04:00:00Z to (now?)
Information:	Summary | Metadata | Background | Data Access Form

 

Graph Type:  lines linesAndMarkers markers sticks vectors X Axis:  latitude longitude time Hs Tav Tp Dirp Y Axis:  latitude longitude time Hs Tav Tp Dirp Color:  latitude longitude time Hs Tav Tp Dirp   Constraints   Constraint #1 Constraint #2 latitude longitude time id Hs Tav Tp Dirp       != =~ <= >= = < >     != =~ <= >= = < > latitude longitude time id Hs Tav Tp Dirp       != =~ <= >= = < >     != =~ <= >= = < > latitude longitude time id Hs Tav Tp Dirp       != =~ <= >= = < >     != =~ <= >= = < > latitude longitude time id Hs Tav Tp Dirp       != =~ <= >= = < >     != =~ <= >= = < > latitude longitude time id Hs Tav Tp Dirp       != =~ <= >= = < >     != =~ <= >= = < >   Server-side Functions distinct() orderBy(      " latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp ") orderByMax(" latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp latitude longitude time id Hs Tav Tp Dirp ")   Graph Settings Marker Type:  None Plus X Dot Square Filled Square Circle Filled Circle Up Triangle Filled Up Triangle    Size: 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Color:  Color Bar: BlackBlueWhite BlackGreenWhite BlackRedWhite BlackWhite BlueWhiteRed BlueWideWhiteRed LightRainbow Ocean Rainbow Rainbow2 ReverseRainbow RedWhiteBlue RedWideWhiteBlue Spectrum Topography WhiteBlueBlack WhiteGreenBlack WhiteRedBlack WhiteBlack    Continuity: Continuous Discrete    Scale: Linear Log       Min:    Max:    N Sections: 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Draw the land mask: under (show topography) over (just show bathymetry) Y Axis Minimum:    Maximum:   Redraw the Graph (Please be patient. It may take a while to get the data.)   Optional: Then set the File Type: .asc .csv .csvp .das .dds .dods .esriCsv .geoJson .graph .help .html .htmlTable .json .mat .nc .ncHeader .ncCF .odvTxt .subset .tsv .tsvp .xhtml .kml .smallPdf .pdf .largePdf .smallPng .png .largePng .transparentPng and or view the URL: (Documentation / How to bypass this form ) (File Type information)

Click on the map to specify a new center point. Zoom:  Time range: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 second(s) minute(s) hour(s) day(s) month(s) year(s)

 

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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:

• Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
• Anyone can use Slide Sorter to build a personal web page that displays graphs of the latest data, each in its own, draggable slide.
• Anyone can use or make Google Gadgets to display images with the latest data on their iGoogle home page.
   

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 0.0, 37.809646666666666;
    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 -156.21619, 0.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 9.47736e+8, 1.3372578e+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";
  }
  id {
    String cf_role "trajectory_id";
    String long_name "id";
  }
  Hs {
    Float32 actual_range 0.02693529, 17.99401;
    String long_name "Significant vave height";
    String units "meters";
  }
  Tav {
    Float32 actual_range 2.485294, 86.0;
    String long_name "Average period";
    String units "seconds";
  }
  Tp {
    Float32 actual_range 2.031746, 25.6;
    String long_name "Dominant period";
    String units "seconds";
  }
  Dirp {
    Float32 actual_range 0.0365974, 359.9833;
    String long_name "Direction of dominant waves";
    String units "degrees_true";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Trajectory";
    String cdm_trajectory_variables "Hs,Tav,Tp,Dirp";
    Float64 Easternmost_Easting 0.0;
    Float64 geospatial_lat_max 37.809646666666666;
    Float64 geospatial_lat_min 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 0.0;
    Float64 geospatial_lon_min -156.21619;
    String geospatial_lon_units "degrees_east";
    String history 
"2012-05-17 file:///home/glassfish/robotCSV/DatawellMOSE
2012-05-17 http://data.liquidr.com/tabledap/DatawellMOSE.das";
    String infoUrl "http://liquidr.com/pacx";
    String institution "Liquid Robotics";
    Float64 Northernmost_Northing 37.809646666666666;
    String sourceUrl "file:///home/glassfish/robotCSV/DatawellMOSE";
    Float64 Southernmost_Northing 0.0;
    String summary "MOSE-G directional wave sensor";
    String time_coverage_end "2012-05-17T12:30:00Z";
    String time_coverage_start "2000-01-13T04:00:00Z";
    String title "MOSE-G directional wave sensor";
    Float64 Westernmost_Easting -156.21619;
  }
}

 

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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 is a superset of the OPeNDAP DAP constraint protocol.

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
   http://data.liquidr.com/erddap/tabledap/datasetID.fileType{?query}
For example,
   http://data.liquidr.com/erddap/tabledap/erdGlobecBottle.htmlTable?longitude,latitude,time,bottle_posn,temperature1&time>=2002-08-17T00:00:00Z&time<=2002-08-19T20:18:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of
constraints (e.g., variable<value) each separated by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.
 

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