Data Access Form

Dataset Title:	PAR timeseries
Institution:	Consiglio Nazionale delle Ricerche (CNR) - Istituto per lo studio degli impatti antropici e sostenibilita' in ambiente marino (IAS) (Dataset ID: PAR)
Information:	Summary \| License \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
time (UTC)	2000-01-01T00:07:24Z	2026-05-09T15:25:25Z

par (uWatt cm^-2 nm^-1)	0.0277	5399.678

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 9.46685244e+8, 1.778340325e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String notes "seconds since epoch";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  par {
    Float64 actual_range 0.0277, 5399.678;
    String ioos_category "Optical Properties";
    String long_name "Photosynthetically Active Radiation";
    String units "uWatt cm^-2 nm^-1";
  }
 }
  NC_GLOBAL {
    String acknowledgement "Funded by EU-Next Generation EU PNRR IR00000032 ITINERIS and Interreg V-A Italia-Malta i-waveNET Implementazione di un sistema innovativo di monitoraggio dello stato del mare in scenari di cambiamento climatico Asse prioritario III Ob. Sp. 3.2 C2_3.2_106 CUP B69C20000070007";
    String cdm_data_type "Other";
    String creator_email "giuseppa.buscaino@cnr.it, veronica.coppolaro@cnr.it";
    String creator_name "Giuseppa Buscaino, Veronica L.M. Coppolaro";
    String creator_type "person, person";
    String creator_url "https://orcid.org/0000-0002-4848-4185, https://orcid.org/0000-0002-8688-8527";
    String data_curator_email "veronica.coppolaro@cnr.it, giuseppa.buscaino@cnr.it, ignazio.fontana@ias.cnr.it, giovanni.giacalone@ias.cnr.it";
    String data_curator_name "Veronica L.M. Coppolaro, Giuseppa Buscaino, Ignazio Fontana, Giovanni Giacalone";
    String data_curator_type "person, person, person, person";
    String data_curator_url "https://orcid.org/0000-0002-8688-8527, https://orcid.org/0000-0002-4848-4185, https://orcid.org/0000-0002-0527-9827, https://orcid.org/0000-0001-8172-4710";
    String data_format_converted "nc";
    String data_format_original "RBR Ruskin .rsk";
    String data_type "Delayed mode";
    String firmware_version "1.147";
    String history 
"Converted from SQLite-based .rsk to NetCDF by ChatGPT on 2026-05-12
2026-05-14T11:35:30Z (local files)
2026-05-14T11:35:30Z https://gransea.cg.cnr.it/erddap/tabledap/PAR.html";
    String infoUrl "https://www.itineris.cnr.it";
    String institution "Consiglio Nazionale delle Ricerche (CNR) - Istituto per lo studio degli impatti antropici e sostenibilita' in ambiente marino (IAS)";
    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 institution_url "https://www.ias.cnr.it/";
    String instrument_model "RBRvirtuoso?";
    String instrument_serial "230373";
    String keywords "Oceans - Ocean Optics - Photosynthetically Active Radiation, Oceans - Ocean Optics - Radiance";
    String keywords_vocabulary "GCMD";
    String license "Creative Commons Attribution 4.0";
    String license_url "https://creativecommons.org/licenses/by/4.0/legalcode";
    String mooring_easting "293126.581 m";
    String mooring_latitude "37.571835";
    String mooring_longitude "12.657463";
    String mooring_name "CNR_IAS_CG";
    String mooring_northing "4160890.434 m";
    String mooring_seabed_depth "9 m";
    String mooring_sensor_depth "8.2 m";
    String mooring_site "CapoGranitola";
    String mooring_type "cabled";
    String mooring_WGS84_zone "33N";
    String naming_authority "Consiglio Nazionale delle Ricerche (CNR) - Istituto per lo studio degli impatti antropici e sostenibilita' in ambiente marino (IAS)";
    String naming_authority_short_name "CNR-IAS";
    String note "RSK channel metadata labels channel01 as Unknown; variable name par was assigned from user-provided context.";
    String part_number "L3-M11-BEC12-INT12-OP1-WPR15-SPAR16";
    String platform_name "GranSea";
    String platform_organization_managing "CNR - IAS";
    String platform_organization_owning "CNR - IAS";
    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 rsk_channel_metadata "[{\"channelID\":1,\"shortName\":\"notype\",\"longName\":\"Unknown\",\"units\":\"Unknown\",\"longNamePlainText\":\"Unknown\",\"unitsPlainText\":\"Unknown\",\"isMeasured\":1,\"isDerived\":0}]";
    String rsk_deployment_metadata "[{\"deploymentID\":1,\"instrumentID\":1,\"comment\":\"\",\"loggerStatus\":null,\"loggerTimeDrift\":null,\"timeOfDownload\":1778138381686,\"name\":\"230373_20260507_0719_realtime.rsk\",\"sampleSize\":null}]";
    String sensor_device_sdn_name "single channel logger";
    String sensor_device_sdn_uri "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1506/";
    String sensor_device_sdn_urn "SDN:L22::TOOL1506";
    String sensor_ID "1";
    String sensor_last_calibration "2023";
    String sensor_manufacturer_info "https://rbr-global.com/";
    String sensor_manufacturer_name "RBR";
    String sensor_model "RBRvirtuoso3";
    String sensor_nickname "PAR_cg";
    String sensor_number_of_channels "1";
    String sensor_number_of_sensors "1";
    String sensor_sampling_rate "1 Hz";
    String source_file "230373_20260507_0719_realtime.rsk";
    String sourceUrl "(local files)";
    String station_name "GranSea";
    String summary "Photosynthetically active radiation (PAR) data recorded at Capo Granitola";
    String time_coverage_end "2026-05-09T15:25:25Z";
    String time_coverage_start "2000-01-01T00:07:24Z";
    String title "PAR timeseries";
  }
}

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.