Make A Graph

Dataset Title:	Detections
Institution:	OTN (Dataset ID: nodename_aat_detections)
Information:	Summary \| License \| Metadata \| Background \| Data Access Form

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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

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(Please be patient. It may take a while to get the data.)

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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 {
  detection_project_reference {
    String ioos_category "Identifier";
    String long_name "Detection Project Reference";
  }
  datacenter_reference {
    String ioos_category "Identifier";
    String long_name "Datacenter Reference";
  }
  detection_id {
    String ioos_category "Identifier";
    String long_name "Detection ID";
  }
  detection_guid {
    String ioos_category "Identifier";
    String long_name "Detection Guid";
  }
  detection_timestamp_utc {
    String ioos_category "Time";
    String long_name "Detection Timestamp UTC";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  detection_latitude {
    String ioos_category "Location";
    String long_name "Detection Latitude";
  }
  detection_longitude {
    String ioos_category "Location";
    String long_name "Detection Longitude";
  }
  tracker_reference {
    String ioos_category "Identifier";
    String long_name "Tracker Reference";
  }
  detection_reference_id {
    String ioos_category "Identifier";
    String long_name "Detection Reference ID";
  }
  detection_reference_type {
    String ioos_category "Unknown";
    String long_name "Detection Reference Type";
  }
  transmitter_codespace {
    String ioos_category "Unknown";
    String long_name "Transmitter Codespace";
  }
  transmitter_id {
    String ioos_category "Identifier";
    String long_name "Transmitter ID";
  }
  detection_transmittername {
    String ioos_category "Identifier";
    String long_name "Detection Transmitter Name";
  }
  detection_serial_number {
    String ioos_category "Identifier";
    String long_name "Detection Serial Number";
  }
  sensor_data {
    String ioos_category "Unknown";
    String long_name "Sensor Data";
  }
  sensor_data_units {
    String ioos_category "Unknown";
    String long_name "Sensor Data Units";
  }
  receiver_log_id {
    String ioos_category "Identifier";
    String long_name "Receiver Log ID";
  }
  deployment_id {
    String ioos_category "Identifier";
    String long_name "Deployment ID";
  }
  detection_quality {
    String ioos_category "Unknown";
    String long_name "Deployment Quality";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  position_data_source {
    String ioos_category "Unknown";
    String long_name "Position Data Source";
  }
  uncertainty_in_latitude {
    String ioos_category "Unknown";
    String long_name "Uncertainty in Latitude";
  }
  uncertainty_in_longitude {
    String ioos_category "Unknown";
    String long_name "Uncertainty in Longitude";
  }
  depth_data_source {
    String ioos_category "Unknown";
    String long_name "Depth Data Source";
  }
  uncertainty_in_depth {
    String ioos_category "Unknown";
    String long_name "Uncertainty in Depth";
  }
  other_position_data {
    String ioos_category "Unknown";
    String long_name "Other Position Data";
  }
  dataset_quality {
    String ioos_category "Unknown";
    String long_name "Dataset Quality";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "???";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-11-14T19:24:47Z (source database)
2024-11-14T19:24:47Z http://erddap.factnetwork.secoora.org:80/tabledap/nodename_aat_detections.das";
    String infoUrl "http://www.oceantrackingnetwork.org/";
    String institution "OTN";
    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 sourceUrl "(source database)";
    String summary "Detections data.";
    String title "Detections";
  }
}

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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