ERDDAP > tabledap > Data Access Form

Dataset Title:	Meteorological data collected by Genoa bus activities using the MeteoTracker device
Institution:	ETT   (Dataset ID: meteotracker_bus)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2026-01-01T00:00:01Z	2026-04-02T17:52:43Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	44.50250352542373
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	9.0333033
altitude (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-603	460
speed	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	81.0
carbon_dioxide	!= =~ <= >= = < >		!= =~ <= >= = < >		-102	-46
pressure	!= =~ <= >= = < >		!= =~ <= >= = < >		938.8	1053.2
humidity	!= =~ <= >= = < >		!= =~ <= >= = < >		3	100
temperature	!= =~ <= >= = < >		!= =~ <= >= = < >		-2.0	24.0
dew_point	!= =~ <= >= = < >		!= =~ <= >= = < >		-26.8	14.4
humidex	!= =~ <= >= = < >		!= =~ <= >= = < >		-5.6	25.5
potential_temperature	!= =~ <= >= = < >		!= =~ <= >= = < >		276.7	317.1
tag	!= =~ <= >= = < >		!= =~ <= >= = < >		"864636064405687" "864636066184744" "864636066184777" "864636067479846"
D	!= =~ <= >= = < >		!= =~ <= >= = < >		1.1714254048059938	1.2983545772518215
vertical_temperature_gradient	!= =~ <= >= = < >		!= =~ <= >= = < >		-14.0	5.0
solar_radiation_index	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	17.0

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time latitude longitude altitude speed carbon_dioxide pressure humidity temperature dew_point humidex potential_temperature tag D vertical_temperature_gradient solar_radiation_index time latitude longitude altitude speed carbon_dioxide pressure humidity temperature dew_point humidex potential_temperature tag D vertical_temperature_gradient solar_radiation_index time latitude longitude altitude speed carbon_dioxide pressure humidity temperature dew_point humidex potential_temperature tag D vertical_temperature_gradient solar_radiation_index time latitude longitude altitude speed carbon_dioxide pressure humidity temperature dew_point humidex potential_temperature tag D vertical_temperature_gradient solar_radiation_index time latitude longitude altitude speed carbon_dioxide pressure humidity temperature dew_point humidex potential_temperature tag D vertical_temperature_gradient solar_radiation_index ")

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). .parquet - Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). .parquetWMeta - Download as a parquet file with detailed metadata. .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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.767225601e+9, 1.775152363e+9;
    String axis "T";
    Float64 colorBarMaximum 1.7685e+9;
    Float64 colorBarMinimum 1.767e+9;
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 0.0, 44.50250352542373;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 0.0, 9.0333033;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Int16 _FillValue 32767;
    Int16 actual_range -603, 460;
    String axis "Z";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum -50.0;
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  speed {
    Float64 actual_range 0.0, 81.0;
    Float64 colorBarMaximum 80.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Speed";
  }
  carbon_dioxide {
    Byte _FillValue -99;
    String _Unsigned "false";
    Byte actual_range -102, -46;
    Float64 colorBarMaximum -40.0;
    Float64 colorBarMinimum -100.0;
    String long_name "Carbon Dioxide";
  }
  pressure {
    Float32 actual_range 938.8, 1053.2;
    Float64 colorBarMaximum 1030.0;
    Float64 colorBarMinimum 980.0;
    String long_name "Pressure";
  }
  humidity {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 3, 100;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Humidity";
  }
  temperature {
    Float32 actual_range -2.0, 24.0;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum -5.0;
    String long_name "Temperature";
  }
  dew_point {
    Float32 actual_range -26.8, 14.4;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum -20.0;
    String long_name "Dew Point";
  }
  humidex {
    Float32 actual_range -5.6, 25.5;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum -10.0;
    String long_name "Humidex";
  }
  potential_temperature {
    Float32 actual_range 276.7, 317.1;
    Float64 colorBarMaximum 310.0;
    Float64 colorBarMinimum 270.0;
    String long_name "Potential Temperature";
  }
  tag {
    String long_name "tag";
  }
  D {
    Float64 actual_range 1.1714254048059938, 1.2983545772518215;
    Float64 colorBarMaximum 1.3;
    Float64 colorBarMinimum 1.2;
    String long_name "D";
  }
  vertical_temperature_gradient {
    Float32 _FillValue NaN;
    Float32 actual_range -14.0, 5.0;
    Float64 colorBarMaximum 6.0;
    Float64 colorBarMinimum -4.0;
    String long_name "Vertical Temperature Gradient";
  }
  solar_radiation_index {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 17.0;
    Float64 colorBarMaximum 8.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Solar Radiation Index";
  }
 }
  NC_GLOBAL {
    String acquisition_methodology "MeteoTraker by Iotopon";
    String acquisition_mode "real time";
    String cdm_data_type "Point";
    String contributors_email "giulia.dapueto@dedagroup.it; antonio.novellino@dedagroup.it";
    String contributors_name "Dapueto, Giulia; Novellino, Antonio";
    String contributors_orcid "0000-0002-3263-5583; 0000-0003-4020-2056";
    String contributors_role "data collector; data curator";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info.ett@dedagroup.it";
    String creator_name "ETT";
    String creator_type "institution";
    String creator_url "https://ettsolutions.com/smartcity/";
    String data_doi "10.5281/zenodo.18926365";
    String data_format_original "csv";
    String data_version "1";
    String documentation "https://s4raise.it/dssmare/citizen_science/, https://raise-spoke3.s4raise.it/project11";
    Float64 Easternmost_Easting 9.0333033;
    String featureType "Point";
    Float64 geospatial_lat_max 44.50250352542373;
    Float64 geospatial_lat_min 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 9.0333033;
    Float64 geospatial_lon_min 0.0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 460.0;
    Float64 geospatial_vertical_min -603.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"2026-04-03T00:05:14Z (local files)
2026-04-03T00:05:14Z http://erddap.s4oceandata.eu/erddap/tabledap/meteotracker_bus.das
2026-04-03T04:34:19Z https://erddap.s4oceandata.eu/erddap/tabledap/meteotracker_bus
2026-04-03T04:34:19Z https://erddap.s4raise.it/erddap/tabledap/meteotracker_bus.html";
    String infoUrl "https://www.raiseliguria.it/spoke-3/";
    String inspire "Oceanographic geographical features";
    String institution "ETT";
    String institution_country "IT";
    String institution_edmo_code "2764";
    String keywords "Solar Radiation (a0f3474e-9a54-4a82-97c4-43864b48df4c)";
    String keywords_vocabulary "GCMD Science Keywords";
    String language "XML";
    String license "CC-BY 4.0";
    String maintainer "ETT S.p.A.";
    String naming_authority "RAISE";
    Float64 Northernmost_Northing 44.50250352542373;
    String owner "ETT";
    String owner_url "https://ettsolutions.com/smartcity/";
    String project_code "RAISE";
    String project_id "ECS00000035";
    String project_name "Robotics and AI for Socio-economic Empowerment";
    String project_statement "RAISE: Robotics and AI for Socio-economic Empowerment is an innovation ecosystem funded by the Ministry of University and Research under the National Recovery and Resilience Plan (NRRP, Mission 4, Component 2, Investment 1.5)";
    String project_url "https://www.raiseliguria.it/";
    String publisher "ETT S.p.A.";
    String references "10.5281/zenodo.18926365";
    String sensors "MeteoTraker by Iotopon";
    String source "Data was collected by Genoa bus by using Meteotracker device";
    String sourceUrl "https://erddap.s4oceandata.eu/erddap/tabledap/meteotracker_bus";
    Float64 Southernmost_Northing 0.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "tag";
    String summary "Collection of meteorological data from the MeteoTracker device. MeteoTracker is a low cost tool for participatory science. RAISE developed the data ingestion, data processing and workflow automation for offering added value datasets.";
    String testOutOfDate "now-2days";
    String theme_eu_data "http://publications.europa.eu/resource/authority/data-theme/ENVI";
    String theme_eurovoc "http://publications.europa.eu/resource/authority/eurovoc/100224";
    String time_coverage_end "2026-04-02T17:52:43Z";
    String time_coverage_start "2026-01-01T00:00:01Z";
    String title "Meteorological data collected by Genoa bus activities using the MeteoTracker device";
    String visibility "public";
    Float64 Westernmost_Easting 0.0;
  }
}

 

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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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