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Dataset Title:	GranSea marine cabled observatory SPL 2021-2022
Institution:	CNR IAS Capo Granitola (Dataset ID: CNR_IAS_CapoGranitola_SPL)
Range:	longitude = 12.6555 to 12.6555°E, latitude = 37.56817 to 37.56817°N, depth = 8.2 to 8.2m, time = 2021-08-16T15:29:35Z to 2022-01-19T13:28:02Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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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 {
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 8.2, 8.2;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  frequency {
    Float32 actual_range 15.625, 12699.21;
    String ioos_category "Unknown";
    String long_name "Frequency";
    String standard_name "frequency";
    String units "Hz";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 37.568167, 37.568167;
    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 12.6555, 12.6555;
    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";
  }
  spl {
    UInt32 _ChunkSizes 1, 299, 30;
    Float32 actual_range 39.71923, 141.5085;
    String ancillary_variables "spl_qc";
    String ioos_category "Pressure";
    String long_name "sound pressure level";
    String standard_name "sound_pressure_level_in_water";
    String units "dB re 1 micropascal";
  }
  spl_qc {
    Int32 _FillValue 2147483647;
    Int32 actual_range 9, 9;
    String flag_meanings "unknown good_data probably_good_data potentially_correctable_bad_data bad_data nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 7, 8, 9";
    String ioos_category "Quality";
    String long_name "spl data quality flag";
    String standard_name "quality_flag";
  }
  station_id {
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.629127775e+9, 1.642598882e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.9.3,hdf5=1.14.6";
    String acknowledgement "Funded by EU - Next Generation EU PNRR IR00000032 ITINERIS, Italian Integrated Environmental Research Infrastructures System";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id, longitude, latitude, depth";
    String conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_name "Veronica Coppolaro, Giuseppa Buscaino";
    String creator_type "institution";
    String creator_url "https://www.ias.cnr.it/";
    String data_format_original "HDF5";
    String data_type "NRT";
    String data_update_frequence "daily";
    String data_version "1.0";
    Float64 Easternmost_Easting 12.6555;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 37.568167;
    Float64 geospatial_lat_min 37.568167;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 12.6555;
    Float64 geospatial_lon_min 12.6555;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 8.2;
    Float64 geospatial_vertical_min 8.2;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2026-05-26T16:37:55Z (local files)
2026-05-26T16:37:55Z https://gransea.cg.cnr.it/tabledap/CNR_IAS_CapoGranitola_SPL.das";
    String infoUrl "https://www.itineris.cnr.it";
    String institution "CNR IAS Capo Granitola";
    String institution_edmo_code "5229";
    String institution_edmo_uri "https://edmo.seadatanet.org/report/5229";
    String institution_ror_code "013fk0013";
    String institution_ror_uri "https://ror.org/013fk0013";
    String keywords "CNR-IAS, hydrophone, ITINERIS, ocean acoustics, sound pressure level";
    String keywords_vocabulary "GCMD";
    String license "Creative Commons Attribution 4.0";
    String license_url "https://creativecommons.org/licenses/by/4.0/legalcode";
    String naming_authority "Consiglio Nazionale delle Ricerche - Istituto per lo studio degli impatti antropici e sostenibilità in ambiente marino";
    String naming_authority_short_name "CNR-IAS";
    Float64 Northernmost_Northing 37.568167;
    String platform_name "GranSea";
    String platform_organization_managing "Consiglio Nazionale delle Ricerche - Istituto per lo studio degli impatti antropici e sostenibilità in ambiente marino";
    String platform_organization_owning "Consiglio Nazionale delle Ricerche - Istituto per lo studio degli impatti antropici e sostenibilità in ambiente marino";
    String platform_reference_person "Giuseppa Buscaino";
    String project_code "ITINERIS";
    String project_DOI "https://doi.org/10.25504/FAIRsharing.da9bec";
    String project_edmerp "13774";
    String project_edmerp_uri "https://edmerp.seadatanet.org/report/13774";
    String project_name "Italian Integrated Environmental Research Infrastructures System";
    String references "https://doi.org/10.3390/jmse13030454";
    String ri_geographical_coverage "Sicilian Channel";
    String ri_name "Italian Ocean Sound (Subsystem)";
    String ri_national_coordin_organization "Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali del Sud";
    String ri_national_coordin_organization_edmo_code "6211";
    String ri_national_coordin_organization_edmo_uri "https://edmo.seadatanet.org/report/6211";
    String ri_national_coordinating_person "Giorgio Riccobene";
    String ri_short_name "IT-OSS";
    String ri_start_date "2022-11-01";
    String source "Passive acoustic data from HF icListen, Oceansonics hydrophone on a cabled mooring";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 37.568167;
    String standard_name_vocabulary "CF Standard Name Table v72";
    String station_name "GranSea";
    String subsetVariables "station_id";
    String summary "Sound Pressure Level computed from the CNR-IAS hydrophone at Capo Granitola";
    String time_coverage_duration "P10M";
    String time_coverage_end "2022-01-19T13:28:02Z";
    String time_coverage_start "2021-08-16T15:29:35Z";
    String title "GranSea marine cabled observatory SPL 2021-2022";
    Float64 Westernmost_Easting 12.6555;
  }
}

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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