Make A Graph

Dataset Title:	NAUTILOS - Fluorimetric sensor AUV - EdgeLab - Test
Institution:	EdgeLab (Dataset ID: fluorometric_AUV_edgelab_test)
Information:	Summary \| License \| Metadata \| Background \| Data Access Form \| Files

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Constraints	Optional Constraint #1		Optional Constraint #2

Server-side Functions

distinct()

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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 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 {
  Message_Identifier {
    String long_name "Message Identifier";
  }
  Tau_Value {
    Int32 _FillValue 2147483647;
    Int32 actual_range 11615222, 11969329;
    String long_name "Tau Value";
    String units "ps";
  }
  Temp {
    Float64 _FillValue -1.0;
    String long_name "Temp";
  }
  DAC_Voltage_Start {
    Int16 _FillValue 32767;
    Int16 actual_range 1320, 1320;
    String long_name "DAC Voltage Start";
    String units "mV";
  }
  DAC_Voltage_Stop {
    Int16 _FillValue 32767;
    Int16 actual_range 400, 400;
    String long_name "DAC Voltage Stop";
    String units "mV";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "edgelab@edgleab.eu";
    String creator_name "Michele Cocco, Leonardo Spinelli";
    String creator_type "Company";
    String creator_url "https://www.edgelab.eu/";
    String geospatial_lat_max "44,095808";
    String geospatial_lat_min "44,0954503";
    String geospatial_lat_resolution "10-7";
    String geospatial_lat_units "Degrees north";
    String geospatial_lon_max "9,8632832";
    String geospatial_lon_min "9,862306";
    String geospatial_lon_resolution "10-7";
    String geospatial_lon_units "Degrees east";
    String geospatial_vertical_max "8";
    String geospatial_vertical_min "0";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "meters";
    String history 
"2024-11-23T14:37:54Z (local files)
2024-11-23T14:37:54Z http://data-nautilos-h2020.eu/tabledap/fluorometric_AUV_edgelab_test.das";
    String infoUrl "https://nautilos-h2020.eu/";
    String inspire "Environmental monitoring facilities, Oceanographic geographical features";
    String institution "EdgeLab";
    String institution_country "IT";
    String institution_edmo_code "6015";
    String keywords "column, Column_0, Column_1, Column_10, Column_11, Column_2, Column_3, Column_4, Column_5, Column_6, Column_7, Column_8, Column_9, data, local, source";
    String license "CC-BY 4.0";
    String naming_authority "NAUTILOS";
    String platform_type "ID25: Autonomous underwater vehicle";
    String project_code "NAUTILOS";
    String Project_DOI "https://doi.org/10.3030/101000825";
    String project_edmerp "13720";
    String project_id "101000825";
    String project_name "New Approach to Underwater Technologies for Innovative, Low-cost Ocean obServation";
    String project_statement "This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 101000825 (NAUTILOS). This output reflects only the author's view and the European Union cannot be held responsible for any use that may be made of the information contained therein";
    String references "Dissolved oxygen measurament test performed by an autonomous underwater vehicle in the harbor of La Spezia (Italy)";
    String sensor_model "https://nke-instrumentation.com/produit/do-sensor-dissolved-oxygen/";
    String source "Dissolved oxygen fluorimeter";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Data stream with different frequency measurement obtained via integration of the DO sensors on an AUV";
    String time_coverage_end "2024-11-23T12:17:33Z";
    String time_coverage_resolution "ss";
    String time_coverage_start "2024-11-23T12:10:56Z";
    String title "NAUTILOS - Fluorimetric sensor AUV - EdgeLab - Test";
    String variables "Message_Identifier, DOTAU, DOTAU, Tau_Value, Temp, DAC_Voltage_Start, DAC_Voltage_Stop";
  }
}

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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