Make A Graph

Dataset Title:	ArcticNet 1304 - Baffin Bay and Northwest Passage CTD data
Institution:	ArcticNet (Dataset ID: amundsen11927)
Range:	longitude = -95.9387 to -55.4333°E, latitude = 49.2185 to 81.2836°N, depth = 0.98938054 to 987.3432m, time = 2013-07-27T13:56:56Z to 2013-09-02T19:21:39Z
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 {
  platform_name {
    String actual_range 
"Amundsen
Amundsen";
    String long_name "Platform Name";
    String standard_name "platform_name";
  }
  platform_id {
    Int32 _FillValue 2147483647;
    Int32 actual_range 7510846, 7510846;
    String long_name "Platform WMO ID";
    String standard_name "platform_id";
  }
  filename {
    String cf_role "profile_id";
    String long_name "Source File Name";
  }
  cruise_name {
    String long_name "Cruise Name";
  }
  cruise_number {
    String long_name "Cruise Number";
  }
  cast_number {
    Int32 _FillValue 2147483647;
    Int32 actual_range 1, 115;
    String long_name "Cast Number";
  }
  station {
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.374933416e+9, 1.378149699e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Initial Start Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 49.2185, 81.2836;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Initial Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -95.9387, -55.4333;
    String axis "X";
    String ioos_category "Location";
    String long_name "Initial Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  PRES {
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 1000.0;
    String alternative_label "Pres_Z";
    String coords "True";
    String long_name "Sea Pressure";
    String sdn_parameter_name "Pressure (spatial coordinate) exerted by the water body by profiling pressure sensor and correction to read zero at sea level";
    String sdn_parameter_urn "SDN:P01::PRESPR01";
    String sdn_uom_name "Decibars";
    String sdn_uom_urn "SDN:P06::UPDB";
    String standard_name "sea_water_pressure_due_to_sea_water";
    String units "decibars";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 0.9893805301473603, 987.3432026526307;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    Float64 missing_values NaN;
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  TE90 {
    Float64 _FillValue NaN;
    Float64 actual_range -1.796, 11.866;
    String alternative_label "CTDTmp90";
    String long_name "Temperature (ITS-90)";
    String sdn_parameter_name "Temperature (ITS-90) of the water body by CTD or STD";
    String sdn_parameter_urn "SDN:P01::TEMPS901";
    String sdn_uom_name "Degrees Celsius";
    String sdn_uom_urn "SDN:P06::UPAA";
    String standard_name "sea_water_temperature";
    String units "degC";
  }
  PSAL {
    Float64 _FillValue NaN;
    Float64 actual_range 20.179, 34.742;
    String alternative_label "P_sal_CTD";
    String long_name "Practical Salinity";
    String sdn_parameter_name "Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm";
    String sdn_parameter_urn "SDN:P01::PSALST01";
    String sdn_uom_name "Practical salinity units";
    String sdn_uom_urn "SDN:P06::PSUX";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  OXYM {
    Float64 _FillValue NaN;
    Float64 actual_range 77.17420800000001, 424.54746600000004;
    String alternative_label "WC_dissO2_IS";
    String long_name "Dissolved Oxygen";
    String sdn_parameter_name "Concentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ sensor";
    String sdn_parameter_urn "SDN:P01::DOXYZZ01";
    String sdn_uom_name "Micromoles per litre";
    String sdn_uom_urn "SDN:P06::UPOX";
    String standard_name "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water";
    String units "uM";
  }
  pH {
    String long_name "Sea water pH";
    Float64 missing_values NaN;
    String sdn_parameter_name "pH (total scale) {pH[T]} of the water body";
    String sdn_parameter_urn "SDN:P01::PHMASSXX";
    String sdn_uom_name "pH units";
    String sdn_uom_urn "SDN:P06::UUPH";
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "1";
  }
  NTRA {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 23.662;
    String long_name "Nitrate (NO3-N)";
    String sdn_parameter_name "Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [unknown phase]";
    String sdn_parameter_urn "SDN:P01::NTRAZZXX";
    String sdn_uom_name "Millimoles per cubic metre";
    String sdn_uom_urn "SDN:P06::MMCM";
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "mmol/m^3";
  }
  FLOR {
    Float64 _FillValue NaN;
    Float64 actual_range 0.029, 14.657;
    String alternative_label "chla_water_ISfluor";
    String long_name "chl-a fluorescence";
    Float64 missing_values NaN;
    String sdn_parameter_name "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer";
    String sdn_parameter_urn "SDN:P01::CPHLPR01";
    String sdn_uom_name "Micrograms per litre";
    String sdn_uom_urn "SDN:P06::UGPL";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String units "ug/L";
  }
  CDOM {
    Float64 _FillValue NaN;
    Float64 actual_range 1.808, 14.732;
    String alternative_label "CDOM_fluor_WETLabs";
    String long_name "CDOM fluorescence";
    Float64 missing_values NaN;
    String sdn_parameter_name "Concentration of coloured dissolved organic matter {CDOM Gelbstoff} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ WET Labs FDOM ECO fluorometer";
    String sdn_parameter_urn "SDN:P01::CCOMD002";
    String sdn_uom_name "Milligrams per cubic metre";
    String sdn_uom_urn "SDN:P06::UMMC";
    String standard_name "concentration_of_colored_dissolved_organic_matter_in_sea_water_expressed_as_equivalent_mass_fraction_of_quinine_sulfate_dihydrate";
    String units "mg/m^3";
  }
  TRAN {
    Float64 _FillValue NaN;
    Float64 actual_range 71.435, 102.376;
    String alternative_label "Trans_Red_25cm";
    String long_name "Light Transmission";
    String sdn_parameter_name "Transmittance (red light wavelength) per 25cm of the water body by 25cm path length red light transmissometer";
    String sdn_parameter_urn "SDN:P01::POPTDR01";
    String sdn_uom_name "Percent";
    String sdn_uom_urn "SDN:P06::UPCT";
    String units "%";
  }
  TURB {
    String alternative_label "Turbidity";
    String long_name "Turbidity";
    Float64 missing_values NaN;
    String sdn_parameter_name "Turbidity of water in the water body";
    String sdn_parameter_urn "SDN:P01::TURBXXXX";
    String sdn_uom_name "Formazin Nephelometric Units";
    String sdn_uom_urn "SDN:P06::UFNU";
    String standard_name "sea_water_turbidity";
    String units "FTU";
  }
  PSAR {
    Float64 _FillValue NaN;
    Float64 actual_range 0.006, 456.0;
    String alternative_label "SubsurVPAR";
    String long_name "Sea Water PAR";
    String sdn_parameter_name "Downwelling vector irradiance as photons of electromagnetic radiation (PAR wavelengths) in the water body by cosine-collector radiometer";
    String sdn_parameter_urn "SDN:P01::IRRDUV01";
    String sdn_uom_name "MicroEinsteins per square metre per second";
    String sdn_uom_urn "SDN:P06::UMES";
    String standard_name "downwelling_photosynthetic_photon_flux_in_sea_water";
    String units "uEinsteins/s/m^2";
  }
  SPAR {
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 1457.45;
    String alternative_label "SurfVPAR";
    String long_name "Surface PAR";
    String sdn_parameter_name "Downwelling vector irradiance as photons of electromagnetic radiation (PAR wavelengths) in the atmosphere by cosine-collector radiometer";
    String sdn_parameter_urn "SDN:P01::IRRDSV01";
    String sdn_uom_name "MicroEinsteins per square metre per second";
    String sdn_uom_urn "SDN:P06::UMES";
    String standard_name "surface_downwelling_photosynthetic_photon_flux_in_sea_water";
    String units "uEinsteins/s/m^2";
  }
  SIGT {
    Float64 _FillValue NaN;
    Float64 actual_range 15.231, 27.884;
    String alternative_label "SigmaT";
    String long_name "Sigma-T";
    String sdn_parameter_name "Sigma-T of the water body by computation from salinity and temperature using UNESCO algorithm";
    String sdn_parameter_urn "SDN:P01::SIGTEQST";
    String sdn_uom_name "Kilograms per cubic metre";
    String sdn_uom_urn "SDN:P06::UKMC";
    String standard_name "sea_water_sigma_t";
    String units "kg/m^3";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Profile";
    String cdm_profile_variables "filename,platform_name,platform_id,cruise_name,cruise_number,cast_number,station,time,latitude,longitude";
    String comment 
"##Limitations:
Purpose: The physical data are one of the tools used to characterize the water masses between the Canadian Basin and the continental shelf and, to some extent, the water circulation in Baffin Bay.

 Supplemental Information: Summary: Not Applicable Research Program(s): ArcticNet. For further information: pdc@arcticnet.ulaval.ca";
    String comment_1 "ice: 4/10 mix 50/50 of 1st and 2nd year ice";
    String contributor_name "Gratton, Yves;Barette, Jessy;Bécu, Guislain;Guillot, Pascal;ArcticNet;Amundsen Science;Amundsen Science";
    String contributor_role "principalInvestigator,originator;collaborator;collaborator;collaborator;pointOfContact,owner,distributor;owner,distributor;pointOfContact,custodian";
    String Conventions "COARDS,ACDD-1.3,CF-1.6,CF-1.7,CF-1.8,CF-1.9";
    String creator_city "Québec";
    String creator_country "Canada";
    String creator_email "pdc@arcticnet.ulaval.ca";
    String creator_institution "ArcticNet";
    String creator_name "ArcticNet";
    String creator_type "institution";
    String creator_url "amundsenscience.com";
    String date_created "2024-07-15";
    String date_modified "2024-07-15T00:00:00Z";
    String doi "https://doi.org/10.5884/11927";
    Float64 Easternmost_Easting -55.4333;
    String featureType "Profile";
    Float64 geospatial_lat_max 81.2836;
    Float64 geospatial_lat_min 49.2185;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -55.4333;
    Float64 geospatial_lon_min -95.9387;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 987.3432026526307;
    Float64 geospatial_vertical_min 0.9893805301473603;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-11-13 20:22:07.459678+00:00 Convert variable O2 mL/L to uM units with: x*44.661
2025-12-14T18:02:37Z (local files)
2025-12-14T18:02:37Z https://erddap.amundsenscience.com/tabledap/amundsen11927.das";
    String id "ccin-11927";
    String infoUrl "https://catalogue.hakai.org/dataset/ca-cioos_None";
    String institution "ArcticNet";
    String keywords "ArcticNet, Baffin Bay, CIOOS:oceanColour, CIOOS:oceanSurfaceHeatFlux, CIOOS:oxygen, CIOOS:subSurfaceSalinity, CIOOS:subSurfaceTemperature, Conductivity, CTD profiles, Fluorescence, Kane Basin, Nitrates, Northwest Passage, Oxygen, Photosynthetically available radiation (PAR), Salinity, Temperature";
    String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
    String license "https://creativecommons.org/licenses/by/4.0";
    Float64 max_depth_m 181.18;
    String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/c8GqCtwH6sZnf3HtZhCgkOsmtoh1/ccin-11927";
    String metadata_link "https://doi.org/10.5884/11927";
    Float64 min_depth_m 1.85;
    String naming_authority "ca.cioos";
    Float64 Northernmost_Northing 81.2836;
    String original_filename "CTD_2013004_115_1_DN.ODF";
    String pdc_ccin "11927";
    String platform "ship";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String product_version "1.0";
    String progress "underDevelopment";
    String project "ArcticNet";
    String publisher_city "Quebec City";
    String publisher_country "Canada";
    String publisher_email "amundsen.data@as.ulaval.ca";
    String publisher_institution "Amundsen Science";
    String publisher_name "Amundsen Science";
    String publisher_ror "https://ror.org/02s3xv195";
    String publisher_type "institution";
    String publisher_url "https://amundsenscience.com";
    String sigt "Sigma-0 [kg/m**3]";
    String sigthe "Sigma-Theta [kg/m**3]";
    Int32 sounding_m 192;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.2185;
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "platform_name,platform_id,cruise_name,cruise_number,cast_number,station";
    String summary 
"The CTD data was obtained during the 2013 ArcticNet scientific cruise #1304.\r
\r
The data were collected from July 27 to September 2, 2013, aboard the CCGS Amundsen. There were 115 casts associated to 59 stations, located in Baffin Bay and Northwest Passage.\r
\r
The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), fluorescence (Seapoint chlorophyll fluorometer), CDOM (Wetlabs FL(RT)D), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; LI-COR Biosciences) and surface light intensity (sPAR; LI-COR Biosciences).\r
\r
Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.";
    String svan "Specific Volume Anomoly [m**3/kg]";
    String theta "Potential Temperature [degrees C]";
    String time_coverage_end "2013-09-02T19:21:39Z";
    String time_coverage_start "2013-07-27T13:56:56Z";
    String title "ArcticNet 1304 - Baffin Bay and Northwest Passage CTD data";
    Float64 Westernmost_Easting -95.9387;
  }
}

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.