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Dataset Title:	BaySys Ice Beacon Data 2017-2018
Institution:	Centre for Earth Observation Science (Dataset ID: BaySys_IceBeacon_data_9484_28fc_f86c)
Range:	longitude = -94.34 to -83.67°E, latitude = 55.99 to 60.04°N, time = 2017-02-07T18:14:12.000Z to 2018-08-03T21:40:05.000Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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Graph Type:

X Axis:

Y Axis:

Color:

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.

Graph Settings

Marker Type:

Size:

Color:

Color Bar:

Continuity:

Scale:

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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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  project_name {
    String ioos_category "Identifier";
    String long_name "Project Name";
  }
  platform_name {
    String ioos_category "Unknown";
    String long_name "Platform Name";
  }
  beacon_ID {
    String ioos_category "Identifier";
    String long_name "Beacon ID";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 55.99, 60.04;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "latitude_DD";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -94.34, -83.67;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "longitude_DD";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.486491252e+9, 1.533332405e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date Time";
    String source_name "date_time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00.000Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  battery_voltage_V {
    Float32 actual_range 3.86, 6.59;
    String ioos_category "Unknown";
    String long_name "Battery Voltage V";
  }
  internal_temperature_C {
    Float32 actual_range -41.3, 20.9;
    String ioos_category "Temperature";
    String long_name "Internal Temperature C";
  }
  distance_m {
    Float32 actual_range 0.0, 58974.57;
    String ioos_category "Unknown";
    String long_name "Distance M";
  }
  distance_result_value_type {
    String ioos_category "Unknown";
    String long_name "Distance Result Value Type";
  }
  speed_m_s {
    Float32 actual_range -0.31, 44.15;
    String ioos_category "Currents";
    String long_name "Speed M S";
  }
  speed_result_value_type {
    String ioos_category "Currents";
    String long_name "Speed Result Value Type";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "David Babb";
    String creator_url "https://umanitoba.ca/environment-earth-resources/earth-observation-science";
    Float64 Easternmost_Easting -83.67;
    String featureType "Point";
    Float64 geospatial_lat_max 60.04;
    Float64 geospatial_lat_min 55.99;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -83.67;
    Float64 geospatial_lon_min -94.34;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-04-16T21:14:27Z (local files)
2024-04-16T21:14:27Z http://CanWINerddap.ad.umanitoba.ca/tabledap/BaySys_IceBeacon_data_9484_28fc_f86c.das";
    String infoUrl "https://umanitoba.ca/environment-earth-resources/earth-observation-science";
    String institution "Centre for Earth Observation Science";
    String keywords "2017-2018, battery, battery_voltage_V, baysys, beacon, beacon_ID, centre, currents, data, date, distance, distance_m, distance_result_value_type, earth, ice, identifier, internal, internal_temperature_C, latitude, longitude, name, observation, platform, platform_name, project, project_name, result, science, speed, speed_m_s, speed_result_value_type, temperature, time, type, v, value, voltage";
    String license "Creative Commons Attribution 4.0 International";
    Float64 Northernmost_Northing 60.04;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 55.99;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "project_name, platform_name, beacon_ID, distance_result_value_type, speed_result_value_type";
    String summary "Data recorded by the 16 ice beacons deployed in 2017 during the BaySys 2017 Churchill River and Mobile Ice Survey campaign, and the 10 ice beacons deployed in 2018 during the BaySys 2018 Hudson Bay Amundsen campaign.";
    String time_coverage_end "2018-08-03T21:40:05.000Z";
    String time_coverage_start "2017-02-07T18:14:12.000Z";
    String title "BaySys Ice Beacon Data 2017-2018";
    Float64 Westernmost_Easting -94.34;
  }
}

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.

(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
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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