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Dataset Title:	Classification of Benthic Substrates (Images) Using Supervised and Unsupervised Machine Learning Models on the North Shore of the St.Lawrence Maritime Estuary | Images de la classification de substrats benthiques générées par Intelligence Artificielle sur la rive nord de l'estuaire maritime
Institution:	The Interdisciplinary Centre for the Development of Ocean Mapping   (Dataset ID: cidcoBenthicSubstrateAiImages)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
marineRegion (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"St. Lawrence Estuary"
location (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Baie des Anglais"	"St. Ludger"
identifier (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"bathymetric_map_01..."	"unsupervised_model..."
samplingProtocol (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Bathymetry"	"Unsupervised model"
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		49.03157	49.29781
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-68.38192	-67.69235
type (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"image"
format (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"PNG"
extent (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"5.509201 MB"	"5.520755 MB"
accessURI (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"01-01_georeference..."	"08-04_georeference..."
footprintWKT (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"POLYGON ((-67.6708..."	"POLYGON ((-68.3766..."

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" marineRegion location identifier samplingProtocol latitude longitude type format extent accessURI footprintWKT marineRegion location identifier samplingProtocol latitude longitude type format extent accessURI footprintWKT marineRegion location identifier samplingProtocol latitude longitude type format extent accessURI footprintWKT marineRegion location identifier samplingProtocol latitude longitude type format extent accessURI footprintWKT marineRegion location identifier samplingProtocol latitude longitude type format extent accessURI footprintWKT ")

File type: (more information) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  marineRegion {
    String description "https://www.marineregions.org/mrgid.php";
    String long_name "Marine Region";
    String units "unitless";
  }
  location {
    String dcmi_identifier "http://purl.org/dc/terms/Location";
    String dcmi_standard_name "Location";
    String description "A spatial region or named place";
    String ioos_category "Location";
    String long_name "Location";
    String units "unitless";
  }
  identifier {
    String ioos_category "Identifier";
    String long_name "Identifier";
    String units "unitless";
  }
  samplingProtocol {
    String description "The methods or protocols used to produce the sample";
    String dwc_standard_name "samplingProtocol";
    String long_name "Sampling Protocol";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/SAMPPROT/";
    String nerc_standard_name "Sampling_protocol";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 49.03157, 49.29781;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -68.38192, -67.69235;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
  type {
    String dcmi_identifier "http://purl.org/dc/terms/type";
    String description "The nature or genre of the resource";
    String long_name "Type";
    String units "unitless";
  }
  format {
    String dcmi_identifier "http://purl.org/dc/terms/format";
    String description "The file format, physical medium, or dimensions of the resource.";
    String long_name "Format";
    String units "unitless";
  }
  extent {
    String dcmi_identifier "http://purl.org/dc/terms/extent";
    String dcmi_standard_name "Extent";
    String description "File size";
    String long_name "Extent";
    String units "unitless";
  }
  accessURI {
    String dwc_identifier "http://rs.tdwg.org/ac/terms/accessURI";
    String fileAccessBaseUrl "https://waf-cc.prod.ogsl.ca/data/erddap/cidco/cidcoBenthicSubstrateAiImages/";
    String long_name "AccessURI";
    String units "unitless";
  }
  footprintWKT {
    String dwc_identifier "http://rs.tdwg.org/dwc/terms/footprintWKT";
    String dwc_standard_name "footprintWKT";
    String ioos_category "Location";
    String long_name "footprint Well-Known Text";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String comment "Do not use unsupervised model data for navigation purposes";
    String contributor_institution "CIDCO, CIDCO, Fisheries and Oceans Canada, CIDCO, CIDCO";
    String contributor_name "Guillaume Labbé-Morissette, Patrick Charron-Morneau, Yanick Gendreau, Théau Leclercq, Dominic Ndeh Munang";
    String contributor_role "owner, distributor, collaborator, metadata custodian, collaborator";
    String Conventions "COARDS, CF-1.10, ACDD-1.3, 0";
    String creator_name "Interdisciplinary Centre for the Development of Ocean Mapping";
    String creator_name_fr "Centre Interdisciplinaire de Développement en Cartographie des Océans (CIDCO)";
    String creator_type "institution";
    String description "Benthic substrates images using Artificial Intelligence";
    String DOI "https://doi.org/10.26071/ogsl-66c132fc-b150";
    Float64 Easternmost_Easting -67.69235;
    String geodeticDatum "https://epsg.io/26919";
    Float64 geospatial_lat_max 49.29781;
    Float64 geospatial_lat_min 49.03157;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -67.69235;
    Float64 geospatial_lon_min -68.38192;
    String geospatial_lon_units "degrees_east";
    String history 
"Data and metadata were standardized and then checked with the SLGO data validation tool.
2024-12-23T09:50:37Z (local files)
2024-12-23T09:50:37Z https://erddap.ogsl.ca/erddap/tabledap/cidcoBenthicSubstrateAiImages.html";
    String infoUrl "https://www.cidco.ca/";
    String institution "The Interdisciplinary Centre for the Development of Ocean Mapping";
    String institution_fr "Centre Interdisciplinaire de Développement en Cartographie des Océans (CIDCO)";
    String instrument "Multibeam echosounder, Hydrins attitude sensor, Septentrio GNSS Receiver";
    String instrument_0_description "MBES Reson Seabat 7125SV dual frequency (400 and 200 kHz)";
    String instrument_0_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0772/";
    String instrument_0_name "Multibeam Echosounder";
    String instrument_1_description "Navigation correction (roll, pitch, heading, heave)";
    String instrument_1_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0833/";
    String instrument_1_name "Hydrins attitude sensor";
    String instrument_2_description "GNSS (Global Navigation Satellite System) Receiver and Antenna using for positioning";
    String instrument_2_identifier "https://vocab.nerc.ac.uk/collection/L05/current/301/";
    String instrument_2_name "Septentrio GNSS Receiver";
    String instrument_fr "Sondeur multifaisceaux, station inertielle Hydrins, recepteur GNSS Septentrio";
    String keywords "artificial intelligence, bathymetry, benthic substrates classification, benthic substrates mapping, supervised machine learning, unsupervised machine learning";
    String keywords_fr "cartographie des substrats benthiques, classification des substrats benthiques, apprentissage automatique supervisé, apprentissage automatique non supervisé, intelligence artificielle, bathymétrie";
    String license "Creative Commons Attribution 4.0 International license CC-BY 4.0. Allows for open sharing and adaptation of the data provided that the original creator is attributed";
    String licenseUrl "https://creativecommons.org/licenses/by/4.0/";
    String mission_time_coverage_end "2019-10-18";
    String mission_time_coverage_start "2018-10-15";
    Float64 Northernmost_Northing 49.29781;
    String publisher_email "\"info@ogsl.ca\"";
    String publisher_name "St. Lawrence Global Observatory";
    String publisher_name_fr "Observatoire global du Saint-Laurent";
    String publisherID "https://ror.org/03wfagk22";
    String related_datasets "https://erddap.ogsl.ca/erddap/tabledap/cidcoBenthicSubstrateAi.html";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.03157;
    String standard_name_nerc_vocabulary "The NERC Vocabulary Server (NVS)";
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "marineRegion, type, format";
    String summary "Classification of benthic substrates (Images) using supervised and unsupervised machine learning models on the North Shore of the St.Lawrence maritime estuary";
    String summary_fr "Images de la classification de substrats benthiques générées par Intelligence Artificielle sur la rive nord de l'estuaire maritime";
    String title "Classification of Benthic Substrates (Images) Using Supervised and Unsupervised Machine Learning Models on the North Shore of the St.Lawrence Maritime Estuary | Images de la classification de substrats benthiques générées par Intelligence Artificielle sur la rive nord de l'estuaire maritime";
    Float64 Westernmost_Easting -68.38192;
  }
}

 

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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 uses the OPeNDAP Data Access Protocol (DAP) and its selection constraints.

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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