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ERDDAP > tabledap > Make A Graph ?

Dataset Title:  Physicochemical data from an SA8065 multiparameter probe at OBSEA's Besos
Buoy (full sensor data)
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Institution:  Universitat Politècnica de Catalunya   (Dataset ID: OBSEA_Besos_Buoy_SA8065_multiparameter_probe_full)
Range: time = 2022-08-02T10:29:50Z to 2024-05-16T14:01:53Z
Information:  Summary ? | License ? | Metadata | Background (external link) | 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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.65943619e+9, 1.715868113e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date/Time";
    String source_name "Date/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";
  }
  TURB {
    Float64 actual_range -240.0, 4204200.0;
    String long_name "sea_water_turbidity";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/TURBXXXX";
    String sdn_parameter_urn "SDN:P01::TURBXXXX";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/USTU";
    String sdn_units_urn "SDN:P06::USTU";
    String standard_name "sea_water_turbidity";
    String units "Nephelometric Turbidity Units";
  }
  TURB_qc {
    Int32 actual_range 1, 4;
    String long_name "TURB quality control flag";
  }
  WBRX {
    Float64 actual_range 0.0, 493493.6;
    String long_name "sea_water_oxidation_reduction_potential";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/PHXXPR01";
    String sdn_parameter_urn "SDN:P01::PHXXPR01";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/UUMV";
    String sdn_units_urn "SDN:P06::UUMV";
    String standard_name "sea_water_oxidation_reduction_potential";
    String units "millivolts";
  }
  WBRX_qc {
    Int32 actual_range 1, 4;
    String long_name "WBRX quality control flag";
  }
  ALKY {
    Float64 actual_range 0.0, 10101.0;
    String long_name "sea_water_ph_reported_on_total_scale";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX";
    String sdn_parameter_urn "SDN:P01::PHXXZZXX";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/UUPH";
    String sdn_units_urn "SDN:P06::UUPH";
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "pH units";
  }
  ALKY_qc {
    Int32 actual_range 1, 4;
    String long_name "ALKY quality control flag";
  }
  DOXY {
    Float64 actual_range 0.03, 492.0;
    String long_name "saturation_of_oxygen_in_sea_water";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/OXYSOP01";
    String sdn_parameter_urn "SDN:P01::OXYSOP01";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/UPCT";
    String sdn_units_urn "SDN:P06::UPCT";
    String standard_name "saturation_of_oxygen_in_sea_water";
    String units "percentage";
  }
  DOXY_qc {
    Int32 actual_range 1, 4;
    String long_name "DOXY quality control flag";
  }
  CNDC {
    Float64 actual_range 0.0, 5.7;
    String long_name "sea_water_electrical_conductivity";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/CNDCST01";
    String sdn_parameter_urn "SDN:P01::CNDCST01";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/UECA";
    String sdn_units_urn "SDN:P06::UECA";
    String standard_name "sea_water_electrical_conductivity";
    String units "siemens per metre";
  }
  CNDC_qc {
    Int32 actual_range 1, 4;
    String long_name "CNDC quality control flag";
  }
  TEMP {
    Float64 actual_range 0.0, 70.0;
    String long_name "sea_water_temperature";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P01/current/TEMPST01";
    String sdn_parameter_urn "SDN:P01::TEMPST01";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/UPAA";
    String sdn_units_urn "SDN:P06::UPAA";
    String standard_name "sea_water_temperature";
    String units "degrees Celsius";
  }
  TEMP_qc {
    Int32 actual_range 1, 4;
    String long_name "TEMP quality control flag";
  }
  DEPTH {
    Float64 actual_range 0.0, 918.0;
    String long_name "depth";
    String sdn_parameter "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0721";
    String sdn_parameter_urn "SDN:P07::CFSN0721";
    String sdn_units "https://vocab.nerc.ac.uk/collection/P06/current/ULAA";
    String sdn_units_urn "SDN:P06::ULAA";
    String standard_name "depth";
    String units "meters";
  }
  DEPTH_qc {
    Int32 actual_range 1, 4;
    String long_name "DEPTH quality control flag";
  }
 }
  NC_GLOBAL {
    String area "NW Mediterranean Sea";
    String author "Enoc Martinez";
    String cdm_data_type "Other";
    String contact "enoc.martinez@upc.edu";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String geospatial_lat_max "41.18212";
    String geospatial_lat_min "41.18212";
    String geospatial_lon_max "1.75257";
    String geospatial_lon_min "1.75257";
    String history 
"2024-10-10T14:05:23Z (local files)
2024-10-10T14:05:23Z https://data.obsea.es/tabledap/OBSEA_Besos_Buoy_SA8065_multiparameter_probe_full.das";
    String infoUrl "https://www.obsea.es";
    String institution "Universitat Politècnica de Catalunya";
    String institution_edmo_code "2150";
    String institution_references "https://www.obsea.es";
    String instrument_model "SA8065.101";
    String license "Creative Commons Attribution 4.0 International (CC-BY-4.0)";
    String pi_name "Joaquín del Río";
    String platform_code "OBSEA_Besos_Buoy";
    String processing_level "data acquired from sensor, quality control procedure applied following QARTOD guidelines";
    String quality_control_flags "1:good data, 2:QC not applied, 3:suspicious data, 4:bad data, 9:missing data";
    String quality_control_methods "QARTOD, https://ioos.noaa.gov/project/qartod";
    String sensor_depth "1";
    String site_code "OBSEA_Besos_Buoy";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Physicochemical data collected by an SA8065 multiparameter probe at the Besos Buoy, on top of the OBSEA observatory, full sensor data";
    String testOutOfDate "now-1day";
    String time_coverage_end "2024-05-16T14:01:53Z";
    String time_coverage_start "2022-08-02T10:29:50Z";
    String title "Physicochemical data from an SA8065 multiparameter probe at OBSEA's Besos Buoy (full sensor data)";
  }
}

 

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.

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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