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Dataset Title:  Conductivity, Temperature, and Depth (CTD) Data from the 2020 Gulf of Alaska
International Year of the Salmon Expedition
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Institution:  University of British Columbia   (Dataset ID: IYS_2020_CTD)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 Cruise ?          "IYS_2020"    "IYS_2020"
 Station ?      
   - +  ?
 time (Date, UTC) ?      
   - +  ?
  < slider >
 latitude (degrees_north) ?          46.36    54.565
  < slider >
 longitude (degrees_east) ?          -147.5341667    -127.9961167
  < slider >
 Scan_count ?          -159    7217
 Pressure (dbar) ?          1    310
 Temperature (deg C) ?          3.6495    9.3533
 Conductivity (mS/cm) ?          25.798906    34.994427
 Fluorescence (mg/m^3) ?          0.0013    2.2498
 Oxygen_raw (V) ?          0.8562    2.7123
 Dissolved_Oxygen (Oxygen M L/L, mL/L) ?          1.2586    6.8435
 Salinity (PSU) ?          25.2264    33.9783
 Density (kg/m^3) ?          19.7945    26.9081
 depth (m) ?          0.991    307.112
  < slider >
 Number_scans_per_bin ?          2    807
 Flag ?          0.0    0.0
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Cruise {
    String ioos_category "Unknown";
    String long_name "Cruise";
  }
  Station {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5839712e+9, 1.5860448e+9;
    String axis "T";
    String cf_role "profile_id";
    String ioos_category "Time";
    String long_name "Date";
    String source_name "Date";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 46.36, 54.565;
    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 -147.5341667, -127.9961167;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Long";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Scan_count {
    Int16 actual_range -159, 7217;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Scan Count";
  }
  Pressure {
    Int16 actual_range 1, 310;
    String ioos_category "Pressure";
    String long_name "Pressure";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  Temperature {
    Float32 actual_range 3.6495, 9.3533;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String standard_name "sea_water_temperature";
    String units "deg C";
  }
  Conductivity {
    Float64 actual_range 25.798906, 34.994427;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 30.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Electrical Conductivity";
    String standard_name "sea_water_electrical_conductivity";
    String units "mS/cm";
  }
  Fluorescence {
    Float32 actual_range 0.0013, 2.2498;
    String ioos_category "Optical Properties";
    String long_name "Fluorescence";
    String units "mg/m^3";
  }
  Oxygen_raw {
    Float32 actual_range 0.8562, 2.7123;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen Raw";
    String units "V";
  }
  Dissolved_Oxygen {
    Float32 actual_range 1.2586, 6.8435;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen M L/L";
    String units "mL/L";
  }
  Salinity {
    Float32 actual_range 25.2264, 33.9783;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  Density {
    Float32 actual_range 19.7945, 26.9081;
    String ioos_category "Physical Oceanography";
    String long_name "Density";
    String standard_name "sea_water_sigma_t";
    String units "kg/m^3";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 0.991, 307.112;
    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";
  }
  Number_scans_per_bin {
    Int16 actual_range 2, 807;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Number Scans Per Bin";
  }
  Flag {
    Float32 actual_range 0.0, 0.0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Flag";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeriesProfile";
    String cdm_profile_variables "time";
    String cdm_timeseries_variables "Station,latitude,longitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Natalie Mahara";
    String DOI "https://doi.org/10.21966/nkc2-9m58";
    Float64 Easternmost_Easting -127.9961167;
    String featureType "TimeSeriesProfile";
    Float64 geospatial_lat_max 54.565;
    Float64 geospatial_lat_min 46.36;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -127.9961167;
    Float64 geospatial_lon_min -147.5341667;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 307.112;
    Float64 geospatial_vertical_min 0.991;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2022-10-04T17:32:02Z (local files)
2022-10-04T17:32:02Z https://data.cioospacific.ca/erddap/tabledap/IYS_2020_CTD.html";
    String id "https://doi.org/10.21966/nkc2-9m58";
    String infoUrl "http://yearofthesalmon.org";
    String institution "University of British Columbia";
    String keywords "conductivity, ctd, density, depth, dissolved oxygen, oceans, temperature";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://creativecommons.org/licenses/by/4.0/";
    Float64 Northernmost_Northing 54.565;
    String platform "ship";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "International Year of the Salmon (IYS)";
    String publisher "North Pacific Anadromous Fish Commission";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 46.36;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "Station, time";
    String summary "Conductivity, Temperature, Depth (CTD) (conductivity, temperature, density) data collected in the Northeast Pacific Ocean during the Gulf of Alaska (GoA) expedition in 2020 using a SeaBird 19 CTD equipped with fluorescence and oxygen sensors was deployed to 300 m depth at 1 m s-1. Data were processed onboard and binned into 1 m depth intervals. These data were collected as part of the International Year of the Salmon (IYS) Gulf of Alaska High Seas Expedition conducted in March to April 2020, to further improve the understanding of factors impacting salmon early marine winter survival.";
    String time_coverage_end "2020-04-05";
    String time_coverage_start "2020-03-12";
    String title "Conductivity, Temperature, and Depth (CTD) Data from the 2020 Gulf of Alaska International Year of the Salmon Expedition";
    Float64 Westernmost_Easting -147.5341667;
  }
}

 

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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