Data Access Form

Dataset Title:	NAUTILOS - Depth and backscatter intensity extracted from the raw sonar data - CEiiA
Institution:	CEiiA - Portugal (Dataset ID: multibeam_sonar_ceiia)
Information:	Summary \| License \| Metadata \| Background \| Subset \| Files \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

url

name (File Name)

lastModified (UTC)

2024-09-19T15:46:46Z

2024-09-19T15:48:02Z

size (byte)

595426.0

992123.0

fileType

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

File type: (more information)

(Documentation / Bypass this form )

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

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  url {
    String ioos_category "Identifier";
    String long_name "URL";
  }
  name {
    String ioos_category "Identifier";
    String long_name "File Name";
  }
  lastModified {
    String ioos_category "Time";
    String long_name "Last Modified";
    String parameter_sdn_name "Elapsed time relative to 1970-01-01T00:00:00Z";
    String parameter_sdn_uri "https://vocab.nerc.ac.uk/collection/P01/current/ELTMEP01/";
    String parameter_sdn_urn "SDN:P01::ELTMEP01";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String unit_sdn_name "Seconds";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/UTBB/";
    String unit_sdn_urn "SDN:P06::UTBB";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  size {
    String ioos_category "Other";
    String long_name "Size";
    String unit_sdn_name "Bytes";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/BYTE/";
    String unit_sdn_urn "SDN:P06::BYTE";
    String units "byte";
    String units_url "https://docs.unidata.ucar.edu/udunits/current/udunits2-common.xml";
  }
  fileType {
    String ioos_category "Identifier";
    String long_name "File Type";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String history 
"2025-04-19T18:08:46Z (local files)
2025-04-19T18:08:46Z https://data-nautilos-h2020.eu/erddap/tabledap/multibeam_sonar_ceiia.html";
    String infoUrl "https://nautilos-h2020.eu/";
    String institution "CEiiA - Portugal";
    String institution_country "PRT";
    String keywords "backscatter, ceiia, data, depth, extracted, file, identifier, intensity, lastModified, modified, name, nautilos, raw, size, sonar, time";
    String license "CC-BY 4.0";
    String naming_authority "NAUTILOS";
    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 Unionâ€™s Horizon 2020 research and innovation programme under grant agreement No. 101000825 (NAUTILOS). This output reflects only the authorâ€™s view and the   European Union cannot be held responsible for any use that may be made of the information contained therein";
    String sourceUrl "(local files)";
    String subsetVariables "fileType";
    String summary "NAUTILOS - Depth and backscatter intensity extracted from the raw sonar data - CEiiA";
    String title "NAUTILOS - Depth and backscatter intensity extracted from the raw sonar data - CEiiA";
  }
}

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.