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Dataset Title:  CASES 0202-Northwest Passage CTD data Subscribe RSS
Institution:  Amundsen Science   (Dataset ID: amundsen514)
Range: longitude = -112.763 to -96.0735°E, latitude = 68.3743 to 72.1432°N, depth = 1.9795011 to 406.38522m, time = 2002-10-15T20:47:54Z to 2002-10-17T15:51:59Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | 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:

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 137, 138;
    String long_name "Cast Number";
  }
  station {
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.034714874e+9, 1.034869919e+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 68.3743, 72.1432;
    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 -112.763, -96.0735;
    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 2.0, 411.0;
    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 1.9795011529937645, 406.38521488222716;
    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 -1.585, 0.092;
    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 27.492, 33.121;
    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 5.129, 8.535;
    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 {
    Float64 _FillValue NaN;
    Float64 actual_range 5.678, 7.131;
    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;
    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 0.03, 0.68;
    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 {
    String alternative_label "CDOM_fluor_WETLabs";
    String long_name "CDOM fluorescence";
    Float64 missing_values NaN;
    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 61.84, 79.73;
    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 0.0, 6.426;
    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 123.295, 181.891;
    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 22.059, 26.636;
    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 and in some extend the water circulation in the Northwest Passage.

 Supplemental Information: Summary: Not Applicable Research Program(s): CASES. For further information: pdc@arcticnet.ulaval.ca";
    String contributor_name "Gratton, Yves;Guillot, Pascal;Simard, Annie;Rail, Marie-Emmanuelle;Robert, Marie;Amundsen Science;Amundsen Science";
    String contributor_role "principalInvestigator;originator;collaborator;collaborator;collaborator;pointOfConcat,custodian;publisher,owner,distributor";
    String Conventions "COARDS,ACDD-1.3,CF-1.6,CF-1.7,CF-1.8,CF-1.9";
    String creator_city "Quebec City";
    String creator_country "Canada";
    String creator_email "info@as.ulaval.ca";
    String creator_institution "Amundsen Science";
    String creator_name "Amundsen Science";
    String creator_type "institution";
    String creator_url "amundsenscience.com";
    String date_created "2024-06-26";
    String date_modified "2024-06-26T00:00:00Z";
    String doi "https://doi.org/10.21963/514";
    Float64 Easternmost_Easting -96.0735;
    String featureType "Profile";
    Float64 geospatial_lat_max 72.1432;
    Float64 geospatial_lat_min 68.3743;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -96.0735;
    Float64 geospatial_lon_min -112.763;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 406.38521488222716;
    Float64 geospatial_vertical_min 1.9795011529937645;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-12-14T17:58:32Z (local files)
2025-12-14T17:58:32Z https://erddap.amundsenscience.com/tabledap/amundsen514.das";
    String id "514";
    String infoUrl "https://catalogue.hakai.org/dataset/ca-cioos_None";
    String institution "Amundsen Science";
    String keywords "CIOOS:oceanColour, CIOOS:oxygen, CIOOS:particulateMatter, CIOOS:subSurfaceSalinity, CIOOS:subSurfaceTemperature, CTD profiles, Fluorescence, Nitrates, North Water Polynya, Northern Baffin Bay, Nunavut, Oxygen, Photosynthetically available radiation (PAR), Salinity, Temperature, Transmittance";
    String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
    String license "https://creativecommons.org/licenses/by/4.0";
    Int32 max_depth_m 406;
    String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/user/amundsen_514";
    String metadata_link "https://doi.org/10.21963/514";
    Float64 min_depth_m 1.66;
    String naming_authority "ca.cioos";
    Float64 Northernmost_Northing 72.1432;
    String original_filename "CTD_2002002_138_1_DN.ODF";
    String pdc_ccin "514";
    String product_version "1.0";
    String progress "completed";
    String project "amundsen,arcticnet";
    String publisher_city "Quebec City";
    String publisher_country "Canada";
    String publisher_email "info@as.ulaval.ca";
    String publisher_institution "Amundsen Science";
    String publisher_name "Amundsen Science";
    String publisher_type "institution";
    String publisher_url "amundsenscience.com";
    Int32 sounding_m 430;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 68.3743;
    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 LEG 00 of the 2002 CASES scientific cruise #0202. This Leg was carried out from September 20th 2002 to October 17th 2002 aboard the CCGS Pierre Radisson. There were 138 CTD casts in Leg 0. Two casts, associated to 2 oceanographic stations, are located in the Northwest Passage research area. The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird 911 probe), oxygen (Sea-Bird 43), fluorescence (Seapoint fluorometer), transmittance (Wetlabs C-Star transmissometer). Data were quality controlled.  Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Ocean Canada.";
    String time_coverage_end "2002-10-17T15:51:59Z";
    String time_coverage_start "2002-10-15T20:47:54Z";
    String title "CASES 0202-Northwest Passage CTD data";
    Float64 Westernmost_Easting -112.763;
  }
}

 

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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