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Dataset Title:	Mosaics of Aerial Photos of the Coasts of Quebec: Ressources List | Mosaïques de photos aériennes des côtes du Québec : Liste des ressources
Institution:	Fisheries and Oceans Canada   (Dataset ID: mpoOrthophotosQuebecCoasts)
Information:	Summary | License | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
marine_region (Standard location, unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Chaleur Bay" "Gaspe Bay" "Gulf of St. Lawrence" "Magdalen Islands" "Saguenay Fjord" "St. Lawrence Estuary"
location (Region, unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Anticosti" "Baie des Chaleurs" "Basse côte-Nord" "Côte-Nord" "Estuaire moyen" "Gaspésie" "Minganie" "Rive Sud de l'Estuaire" "Saguenay" "Îles-de-la-Madeleine"
locality (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >
year (CCYY)	!= =~ <= >= = < >		!= =~ <= >= = < >		2015 2016 2018 2019 2020 2022 2024
time (Date of the overflight, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2015-09-21	2024-09-06
time_coverage_start (HH:mm)	!= =~ <= >= = < >		!= =~ <= >= = < >
time_coverage_end (End of period covered, HH:mm)	!= =~ <= >= = < >		!= =~ <= >= = < >
png_preview_URI (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >
accessURI (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >
extent (File size, MB)	!= =~ <= >= = < >		!= =~ <= >= = < >		516.2	14616.7
captureDevice (Camera, unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >
grid_mapping_geographic_crs (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"NAD83 - EPSG:4269" "NAD83 / Quebec Lambert - EPSG:32198" "NAD83 / UTM zone 19N - EPSG:26919" "NAD83 / UTM zone 20N - EPSG:26920"
geospatial_lat_max_NAD83 (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		46.97049	5572930.0
geospatial_lat_min_NAD83 (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		46.83916	5556191.0
geospatial_lon_max_NAD83 (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-93916.64	735647.9
geospatial_lon_min_NAD83 (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-115271.1	721001.8
geospatial_lat_max_WGS84 (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		46.97049	50.84385
geospatial_lat_min_WGS84 (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		46.83916	50.56082
geospatial_lon_max_WGS84 (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-70.71714	-59.01797
geospatial_lon_min_WGS84 (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-71.10828	-59.47301
geospatial_resolution (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.3	0.3
marine_region_identifier (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" marine_region location locality year time time_coverage_start time_coverage_end png_preview_URI accessURI extent captureDevice grid_mapping_geographic_crs geospatial_lat_max_NAD83 geospatial_lat_min_NAD83 geospatial_lon_max_NAD83 geospatial_lon_min_NAD83 geospatial_lat_max_WGS84 geospatial_lat_min_WGS84 geospatial_lon_max_WGS84 geospatial_lon_min_WGS84 geospatial_resolution marine_region_identifier marine_region location locality year time time_coverage_start time_coverage_end png_preview_URI accessURI extent captureDevice grid_mapping_geographic_crs geospatial_lat_max_NAD83 geospatial_lat_min_NAD83 geospatial_lon_max_NAD83 geospatial_lon_min_NAD83 geospatial_lat_max_WGS84 geospatial_lat_min_WGS84 geospatial_lon_max_WGS84 geospatial_lon_min_WGS84 geospatial_resolution marine_region_identifier marine_region location locality year time time_coverage_start time_coverage_end png_preview_URI accessURI extent captureDevice grid_mapping_geographic_crs geospatial_lat_max_NAD83 geospatial_lat_min_NAD83 geospatial_lon_max_NAD83 geospatial_lon_min_NAD83 geospatial_lat_max_WGS84 geospatial_lat_min_WGS84 geospatial_lon_max_WGS84 geospatial_lon_min_WGS84 geospatial_resolution marine_region_identifier marine_region location locality year time time_coverage_start time_coverage_end png_preview_URI accessURI extent captureDevice grid_mapping_geographic_crs geospatial_lat_max_NAD83 geospatial_lat_min_NAD83 geospatial_lon_max_NAD83 geospatial_lon_min_NAD83 geospatial_lat_max_WGS84 geospatial_lat_min_WGS84 geospatial_lon_max_WGS84 geospatial_lon_min_WGS84 geospatial_resolution marine_region_identifier marine_region location locality year time time_coverage_start time_coverage_end png_preview_URI accessURI extent captureDevice grid_mapping_geographic_crs geospatial_lat_max_NAD83 geospatial_lat_min_NAD83 geospatial_lon_max_NAD83 geospatial_lon_min_NAD83 geospatial_lat_max_WGS84 geospatial_lat_min_WGS84 geospatial_lon_max_WGS84 geospatial_lon_min_WGS84 geospatial_resolution marine_region_identifier ")

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

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  marine_region {
    String description "https://marineregions.org/";
    String long_name "Standard location";
    String units "unitless";
  }
  location {
    String long_name "Region";
    String standard_name_dcim "location";
    String standard_name_dcim_identifier "http://purl.org/dc/terms/Location";
    String units "unitless";
  }
  locality {
    String long_name "locality";
    String standard_name_dwc "locality";
    String standard_name_dwc_identifier "http://rs.tdwg.org/dwc/terms/locality";
    String units "unitless";
  }
  year {
    Int32 actual_range 2015, 2024;
    String dwc_standard_name "year";
    String dwc_standard_name_identifier "http://rs.tdwg.org/dwc/terms/year";
    String ioos_category "Time";
    String long_name "Year";
    String standard_name "time";
    String units "CCYY";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4427936e+9, 1.7255808e+9;
    String axis "T";
    String coverage_content_type "coordinate";
    String ioos_category "Time";
    String long_name "Date of the overflight";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String nerc_standard_name "Date";
    String source_name "date";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  time_coverage_start {
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String ioos_category "Time";
    String long_name "Beginning of period covered";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String nerc_standard_name "Date";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String units "HH:mm";
  }
  time_coverage_end {
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String ioos_category "Time";
    String long_name "End of period covered";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String nerc_standard_name "Date";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String units "HH:mm";
  }
  png_preview_URI {
    String file_format "png";
    String fileAccessBaseUrl "https://waf-cc.prod.ogsl.ca/data/ckan/mpo/ca-cioos_c4d6031d-6570-4749-816c-c2447e2fff7b/orthophotos/orthophotos_compress_png/";
    String long_name "Non georeferenced photograph";
    String standard_name_ac "ServiceAccessPoint";
    String standard_name_ac_identifier "https://ac.tdwg.org/termlist/#ac_ServiceAccessPoint";
    String units "unitless";
  }
  accessURI {
    String file_format "tif";
    String fileAccessBaseUrl "https://waf-cc.prod.ogsl.ca/data/ckan/mpo/ca-cioos_c4d6031d-6570-4749-816c-c2447e2fff7b/orthophotos/orthophotos_geotiff/";
    String long_name "Georeferenced photograph";
    String standard_name_ac "accessURI";
    String standard_name_ac_identifier "http://rs.tdwg.org/ac/terms/accessURI";
    String units "unitless";
  }
  extent {
    Float32 actual_range 516.2, 14616.7;
    String ioos_category "Other";
    String long_name "File size";
    String units "MB";
  }
  captureDevice {
    String ac_standard_name "captureDevice";
    String ac_standard_name_identifier "http://rs.tdwg.org/ac/terms/captureDevice";
    String description "Device or devices used to create the ressource";
    String ioos_category "Other";
    String long_name "Camera";
    String standard_name_ac "captureDevice";
    String standard_name_ac_identifier "http://rs.tdwg.org/ac/terms/captureDevice";
    String units "unitless";
  }
  grid_mapping_geographic_crs {
    String ioos_category "Location";
    String long_name "Coordonnate reference system of the orthophotography file";
    String units "unitless";
  }
  geospatial_lat_max_NAD83 {
    Float32 actual_range 46.97049, 5572930.0;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Northernmost latitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String source_name "geospatial_lat_max_NAD83";
    String spatial_reference_system "NAD83/UTM zone 20N - EPSG:26920 - https://epsg.io/26920";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  geospatial_lat_min_NAD83 {
    Float32 actual_range 46.83916, 5556191.0;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Southernmost latitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "NAD83/UTM zone 20N - EPSG:26920 - https://epsg.io/26920";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  geospatial_lon_max_NAD83 {
    Float32 actual_range -93916.64, 735647.9;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Easternmost longitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "NAD83/UTM zone 20N - EPSG:26920 - https://epsg.io/26920";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_east";
  }
  geospatial_lon_min_NAD83 {
    Float32 actual_range -115271.1, 721001.8;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Westernmost longitude covered by the dataset.";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "NAD83/UTM zone 20N - EPSG:26920 - https://epsg.io/26920";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_east";
  }
  geospatial_lat_max_WGS84 {
    Float32 actual_range 46.97049, 50.84385;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Northernmost latitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "WGS 84 - EPSG:4326 - https://epsg.io/4326";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  geospatial_lat_min_WGS84 {
    Float32 actual_range 46.83916, 50.56082;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Southernmost latitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "WGS 84 - EPSG:4326 - https://epsg.io/4326";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  geospatial_lon_max_WGS84 {
    Float32 actual_range -70.71714, -59.01797;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Easternmost longitude covered by the dataset";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "WGS 84 - EPSG:4326 - https://epsg.io/4326";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_east";
  }
  geospatial_lon_min_WGS84 {
    Float32 actual_range -71.10828, -59.47301;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String dcim_standard_name "coverage";
    String dcim_standard_name_identifier "http://purl.org/dc/elements/1.1/coverage";
    String description "Westernmost longitude covered by the dataset.";
    String ioos_category "Location";
    String long_name "Maximum latitude";
    String spatial_reference_system "WGS 84 - EPSG:4326 - https://epsg.io/4326";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_east";
  }
  geospatial_resolution {
    Float32 actual_range 0.3, 0.3;
    String comment "Resolution values have been averaged to the tenth decimal place.";
    String description "Information about the targeted spacing of points";
    String ioos_category "Other";
    String long_name "Spatial resolution";
    String units "m";
  }
  marine_region_identifier {
    String long_name "Standard location URI";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String contributor_name "Rosalie Davreux, Olivier Parent";
    String Conventions "COARDS,CF-1.11,ACDD-1.3,0, NCCSV-1.2";
    String creator_identifier "https://ror.org/02qa1x782";
    String creator_name "Fisheries and Oceans Canada";
    String creator_type "institution";
    String data_curator "St. Lawrence Global Observatory";
    String data_curator_fr "Observatoire global du Saint-Laurent";
    String defaultDataQuery "&time>=min(time)";
    String history 
"2026-08-18T00:43:40Z (local files)
2026-08-18T00:43:40Z http://erddap.cioos.ca/erddap/tabledap/mpoOrthophotosQuebecCoasts.html";
    String infoUrl "https://catalogue.ogsl.ca/fr/dataset/ca-cioos_1e8fbfea-fd72-408b-bce1-d2c20ab645bc";
    String institution "Fisheries and Oceans Canada";
    String institution_fr "Pêches et Océans Canada";
    String institution_identifier "https://ror.org/02qa1x782";
    String keywords "Aerial photography, Eelgrass, Mosa\\\\u00efcs, Quebec";
    String keywords_fr "Mosaïques, Photos aériennes, Québec, Zostère";
    String keywords_vocabulary "NASA Global Change Master Directory (GCMD) Science Keywords and homemade keywords";
    String license "Open Government Licence - Canada";
    String licenseUrl "https://open.canada.ca/en/open-government-licence-canada";
    String platform "research aeroplane";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    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 repository_data_folder_URI "https://waf-cc.prod.ogsl.ca/data/ckan/mpo/ca-cioos_c4d6031d-6570-4749-816c-c2447e2fff7b/orthophotos/orthophotos_geotiff/";
    String sourceUrl "(local files)";
    String standard_name_nerc_vocabulary "The NERC Vocabulary Server (NVS)";
    String standard_name_other_vocabulary "dwc: Darwin Core List of Terms (v 2023-09); dcmi: Dublin Core Metadata Initiative Metadata Terms (v 2020-01); ac: Audiovisual Core Term List (v 2023-09-05)";
    String standard_name_vocabulary "CF Standard Name Table v86";
    String subsetVariables "marine_region, year, grid_mapping_geographic_crs, location";
    String summary 
"These *raster* mosaics were constructed using aerial photos acquired by the Marine Conservation and Planning Division (MCPD), DFO (Fisheries and Oceans Canada) Quebec Region. 
The photos, captured vertically along flight lines previously supplied by DFO, were georeferenced and orthorectified with a ground resolution of 30 cm. An UltraCam Xp digital multi-spectral camera was used, mounted on an aircraft at an altitude of 16,500 metres, to obtain a swath of at least 4 km on the ground. An overlap of 60% to 80% was required to optimize the image during mosaicking. 
Certain environmental criteria had to be met to ensure image homogeneity. The photos had to be taken as close as possible to low tide, synchronized with the period of the day when the sun's angle of elevation was greater than 25°, wind speed less than 20km/h, waves less than 1 metre high, and no cloud or fog under the aircraft. Water turbidity had to be taken into account to ensure identification of eelgrass in the water.";
    String summary_fr 
"Ces mosaïques *raster* ont été construites avec les photos aériennes acquises par la division de la planification et conservation marine (DPCM), du MPO (Ministère Pêches et Océans Canada) région du Québec. 
Les photos, captées verticalement en suivant les lignes de vols préalablement fournies par le MPO, ont été géoréférencées et orthorectifiées avec une résolution au sol de 30 cm. La caméra numérique multi-spectrale de type UltraCam Xp utilisée était placée sur un avion à 16 500 mètres d’altitude et permettait d’obtenir une fauchée d’au moins 4 km au sol. Un chevauchement de 60% à 80% était demandé afin d’optimiser l’image lors du mosaïquage. 
Certains critères environnementaux devaient être respectés pour assurer l'homogénéité des images. La prise de photos devait suivre le plus près possible la marée basse, synchronisée avec la période du jour où l’angle d’élévation du soleil est supérieur à 25°, une vitesse du vent inférieur à 20km/h, des vagues de moins de 1 mètre ainsi que des conditions de nébulosité et de brouillard nulles sous l’avion. La turbidité de l’eau devait être prise en compte pour assurer l’identification des herbiers de zostère dans l’eau.";
    String time_coverage_end "2024-09-06";
    String time_coverage_start "2015-09-21";
    String title "Mosaics of Aerial Photos of the Coasts of Quebec: Ressources List | Mosaïques de photos aériennes des côtes du Québec : Liste des ressources";
    String waf_url "https://waf-cc.prod.ogsl.ca/data/ckan/mpo/ca-cioos_c4d6031d-6570-4749-816c-c2447e2fff7b/orthophotos/orthophotos_geotiff/";
  }
}

 

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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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ERDDAP, Version 2.28.1
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