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Dataset Title:  ArcticNet 0704a - Labrador fjords and sea CTD data Subscribe RSS
Institution:  Amundsen Science   (Dataset ID: amundsen796)
Range: longitude = -64.815 to -57.2969°E, latitude = 56.3056 to 61.266°N, depth = 1.9809384 to 895.7403m, time = 2007-07-30T02:06:05Z to 2007-08-03T14:02:50Z
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";
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    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, 20;
    String long_name "Cast Number";
  }
  station {
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.185761165e+9, 1.18614977e+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 56.3056, 61.266;
    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 -64.815, -57.2969;
    String axis "X";
    String ioos_category "Location";
    String long_name "Initial Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Pres {
    Float64 missing_values NaN;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 1.980938429637288, 895.740303661759;
    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";
  }
  Temp {
    Float64 missing_values NaN;
    String units "degC";
  }
  Sal {
    Float64 missing_values NaN;
  }
  O2 {
    Float64 missing_values NaN;
  }
  Dens {
    Float64 _FillValue NaN;
    Float64 actual_range 20.88, 31.89;
    String long_name "Sigma-T (Rho (S, T, 0) - 1000)";
    Float64 missing_values NaN;
    String standard_name "sea_water_sigma_t";
    String units "kg/m^3";
  }
  FreezT {
    Float64 missing_values NaN;
    String units "degC";
  }
  pH {
    Float64 _FillValue NaN;
    Float64 actual_range -3.306, 14.91;
    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";
  }
  NO3 {
    Float64 missing_values NaN;
  }
  Trans {
    Float64 missing_values NaN;
  }
  Fluo {
    Float64 missing_values NaN;
  }
  SPar {
    Float64 missing_values NaN;
  }
  Par {
    Float64 missing_values NaN;
  }
  theta {
    Float64 _FillValue NaN;
    Float64 actual_range -1.799, 8.938;
    String long_name "Potential Temperature";
    Float64 missing_values NaN;
    String standard_name "sea_water_potential_temperature";
    String units "degC";
  }
  sigt {
    Float64 missing_values NaN;
  }
  sigthe {
    Float64 missing_values NaN;
  }
  N2 {
    Float64 _FillValue NaN;
    Float64 actual_range -0.00223, 0.00827;
    String long_name "Brunt-Vaisala Frequency";
    Float64 missing_values NaN;
    String standard_name "square_of_brunt_vaisala_frequency_in_sea_water";
    String units "s^-2";
  }
  svan {
    Float64 _FillValue NaN;
    Float64 actual_range 44.0, 690.0;
    Float64 missing_values NaN;
  }
 }
  NC_GLOBAL {
    String ccin "796";
    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, to some extent, the water circulation in three Labrador fjords.

 Supplemental Information: Summary: Not Applicable Research Program(s): ArcticNet. For further information: pdc@arcticnet.ulaval.ca";
    String contributor_name "Yves, Gratton;Véronique, Lago;Marie-Emmanuelle, Rail;ArcticNet;Amundsen Science;Amundsen Science";
    String contributor_role "principalInvestigator,originator;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_role "Amundsen's Core Data Manager";
    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/10.5884/796";
    Float64 Easternmost_Easting -57.2969;
    String featureType "Profile";
    Float64 geospatial_lat_max 61.266;
    Float64 geospatial_lat_min 56.3056;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -57.2969;
    Float64 geospatial_lon_min -64.815;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 895.740303661759;
    Float64 geospatial_vertical_min 1.980938429637288;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-12-14T18:00:31Z (local files)
2025-12-14T18:00:31Z https://erddap.amundsenscience.com/tabledap/amundsen796.das";
    String id "ccin-796";
    String infoUrl "https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=796";
    String institution "Amundsen Science";
    String keywords "Conductivity, CTD profiles, Fluorescence, Labrador, Labrador fjords, Labrador Sea, Nitrates, 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";
    Float64 max_depth_m 256.45;
    String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/c8GqCtwH6sZnf3HtZhCgkOsmtoh1/ccin-796";
    String metadata_link "https://doi.org/10.5884/796";
    Float64 min_depth_m 2.19;
    String naming_authority "ca.cioos";
    Float64 Northernmost_Northing 61.266;
    String original_filename "CTD_2007004_020_1_DN.ODF";
    String pdc_ccin "796";
    String platform "ship";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String product_version "1.0";
    String progress "completed";
    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 reference "https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=796";
    Int32 sounding_m 268;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 56.3056;
    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 2007-2008 ArcticNet scientific cruise #0704. The data were collected from July 30 to August 3, 2007, aboard the CCGS Amundsen. There were 20 casts, associated to 20 oceanographic stations, in the three Labrador fjords and Labrador Sea. \r
\r
The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), pH (Sea-Bird SBE-18-I), fluorescence (Seapoint chlorophyll fluorometer), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). 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 time_coverage_end "2007-08-03T14:02:50Z";
    String time_coverage_start "2007-07-30T02:06:05Z";
    String title "ArcticNet 0704a - Labrador fjords and sea CTD data";
    Float64 Westernmost_Easting -64.815;
  }
}

 

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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