ERDDAP
Easier access to the Amundsen Science data
Easier access to the Amundsen Science data
| Dataset Title: | ThermoSalinoGraph (TSG) data collected by the CCGS Amundsen in the Canadian Arctic 
|
| Institution: | Amundsen Science (Dataset ID: amundsen12715) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
platform_name {
String actual_range
"Amundsen
Amundsen";
String cf_role "trajectory_id";
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 {
Float64 colorBarMaximum 1050.0;
Float64 colorBarMinimum 950.0;
String long_name "Source File Name";
}
cruise_number {
String long_name "Cruise Number";
}
time {
String _CoordinateAxisType "Time";
String axis "T";
String calendar "proleptic_gregorian";
String ioos_category "Time";
String long_name "Time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String timezone "UTC";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 44.25506, 81.83637;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -172.57706, -48.16268;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String source_name "Long";
String standard_name "longitude";
String units "degrees_east";
}
Tem_TSG {
Float64 _FillValue NaN;
Float64 actual_range -2.0, 18.9;
Float64 colorBarMaximum 32.0;
Float64 colorBarMinimum 0.0;
String long_name "Temperature From Thermo-Salinometer";
Float64 missing_value NaN;
String standard_name "sea_surface_temperature";
String units "degrees_celcius";
}
Sal_TSG {
Float64 _FillValue NaN;
Float64 actual_range 0.52, 34.83;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String long_name "Salinity from thermo-salinometer";
Float64 missing_value NaN;
String standard_name "sea_water_practical_salinity";
String units "PSU";
}
Fluo {
Float64 _FillValue NaN;
Float64 actual_range -0.1, 21.82;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
String long_name "Fluorescence";
Float64 missing_value NaN;
String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
String units "ug/L";
}
Vel {
Float64 _FillValue NaN;
Float64 actual_range 1411.28, 1509.26;
String long_name "Sound Velocity From Velocity Sensor";
Float64 missing_value NaN;
String standard_name "speed_of_sound_in_sea_water";
String units "m/s";
}
Speed {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 20.63;
String long_name "Vessel True Speed";
String standard_name "platform_speed";
String units "Knt";
}
}
NC_GLOBAL {
String ccin "12715";
String cdm_data_type "Trajectory";
String cdm_trajectory_variables "filename,platform_name,platform_id";
String comment
"##Limitations:
Purpose: Provide core physical oceanographic data for all arctic research teams onboard CCGS Amundsen and other interested scientists. The underway ThermoSalinoGraph (TSG) system records data on surface seawater temperature, salinity, fluorescence and sound velocity along the transit route. These data constitute ancillary data for all other data recorded during the CCGS Amundsen scientific expeditions by providing information on the prevailing physical oceanic conditions in which biological, chemical and physical samplings were conducted. They also provide long-term records of the basic parameters central to the study of physical oceanographic processes, more specifically water column structure, water masses characteristics and oceanic circulation, in the Canadian Arctic Ocean.
Supplemental Information: Summary: Not Applicable Research Program(s): DFO,GreenEdge,NETCARE,IPY,IPY,ArcticNet,BREA. For further information: http://doi.org/10.5884/12715";
String contributor_name "Forest, Alexandre;Morisset, Simon;Lévesque, Keith;Linkowski, Thomas;Zier, Juergen;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_role "Amundsen Science Core Data Collection DATA Coordinator";
String creator_type "institution";
String creator_url "amundsenscience.com";
String date_created "2025-07-15";
String date_modified "2025-07-15T00:00:00Z";
String doi "https://doi.org/10.5884/12715";
Float64 Easternmost_Easting -48.16268;
String end_date_time_utc "2021-11-02T17:50:00";
String featureType "Trajectory";
Float64 final_latitude_deg 47.6548;
Float64 final_longitude_deg -70.0522;
Float64 geospatial_lat_max 81.83637;
Float64 geospatial_lat_min 44.25506;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -48.16268;
Float64 geospatial_lon_min -172.57706;
String geospatial_lon_units "degrees_east";
String history
"2025-12-14T17:59:36Z (local files)
2025-12-14T17:59:36Z https://erddap.amundsenscience.com/erddap/tabledap/amundsen12715.html";
String id "ccin-12715";
String infoUrl "https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=12715";
Float64 initial_latitude_deg 69.1075;
Float64 initial_longitude_deg -105.0599;
String institution "Amundsen Science";
String keywords "Arctic Ocean, Canadian, Fluorescence, Greenlandic and USA Arctic Seas, Salinity, Temperature, Velocity";
String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
String lat "Latidude [degrees N]";
String license "https://creativecommons.org/licenses/by/4.0";
String long "Longitude [degrees E]";
String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/c8GqCtwH6sZnf3HtZhCgkOsmtoh1/ccin-12715";
String metadata_link "https://doi.org/10.5884/12715";
String naming_authority "ca.cioos";
Float64 Northernmost_Northing 81.83637;
String pdc_ccin "12715";
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,BREA,Fisheries and Oceans Canada,GreenEdge,IPY-CFL,IPY-GEOTRACES,NETCARE-Network on Climate and Aerosols";
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 "http://doi.org/10.5884/12715";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 44.25506;
String standard_name_vocabulary "CF Standard Name Table v79";
String start_date_time_utc "2021-10-09T23:40:00";
String subsetVariables "platform_name,platform_id,cruise_number";
String summary
"The Canadian research icebreaker CCGS Amundsen is equipped with an underway ThermoSalinoGraph (TSG) system, which continuously records surface seawater temperature, salinity, fluorescence and sound velocity along the transit route. Quality Assurance/Quality Control (QAQC) data are available for the summer periods between 2005 and 2021, except in 2007, 2008 and 2012 where the system was faulty or the ship was in maintenance.
The TSG data were corrected and controlled by comparing them to CTD-Rosette data and in situ measures when available. Outliers and suspicious measurements were removed from the dataset. Variables are provided every 7 minutes.
Research programs participating in the Amundsen expeditions between 2005 and 2021 include, ArcticNet, CFL, Geotraces, Malina, IOL and BP, BREA, Weston, Netcare, JAMSTEC, Statoil and iBO, GreenEdge, BAYSYS, Sentinel Nord (BriGHT, BOND), DFO ROV vulnerable marine ecosystem, and the Kitikmeot marine Ecosystem.";
String time_coverage_duration "P23DT18H9M0S";
String time_coverage_end "2019-09-10T00:00:00";
String time_coverage_start "2005-08-22T00:00:00";
String title "ThermoSalinoGraph (TSG) data collected by the CCGS Amundsen in the Canadian Arctic";
Float64 Westernmost_Easting -172.57706;
}
}
Data Access Protocol (DAP) and its
selection constraints.
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.