ERDDAP
Easier access to the Amundsen Science data
Easier access to the Amundsen Science data
| Dataset Title: | ATmospheric System (ATS) data collected aboard the CCGS Amundsen in the Canadian Arctic. 
|
| Institution: | Amundsen Science (Dataset ID: amundsen13391) |
| 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 ioos_category "Time";
String long_name "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";
Float64 _FillValue NaN;
Float64 actual_range 46.809562, 82.418105;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String ioos_category "Location";
String long_name "Latitude";
Float64 missing_value NaN;
String sdn_parameter_urn "\"SDN:P01::ALATZZ01\"";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -98.5080702, -52.342885;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String ioos_category "Location";
String long_name "Longitude";
Float64 missing_value NaN;
String sdn_parameter_urn "\"SDN:P01::ALONZZ01\"";
String standard_name "longitude";
String units "degrees_east";
}
wind_speed {
Float64 actual_range 0.0, 23.0;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
Float64 missing_value NaN;
String standard_name "wind_speed";
}
wind_direction {
Float64 actual_range 0.0, 360.0;
Float64 colorBarMaximum 360.0;
Float64 colorBarMinimum 0.0;
Float64 missing_value NaN;
String standard_name "wind_from_direction";
}
air_temperature {
Float64 actual_range -7.2, 23.8;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum -10.0;
Float64 missing_value NaN;
String units "degree_C";
}
air_humidity {
Float64 actual_range 26.3, 100.2;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 missing_value NaN;
String units "percent";
}
air_pressure {
Float64 actual_range 982.4, 1031.9;
Float64 colorBarMaximum 1050.0;
Float64 colorBarMinimum 950.0;
Float64 missing_value NaN;
}
surface_temperature {
Float64 actual_range -15.5, 16.0;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum -10.0;
Float64 missing_value NaN;
String units "degree_C";
}
visibility_distance {
Float64 actual_range 39.0, 64999.0;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 missing_value NaN;
}
precipitation_counter {
Int32 _FillValue 2147483647;
Int32 actual_range 0, 2897;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
}
precipitation_intensity {
Float64 actual_range 0.0, 454.53;
Float64 colorBarMaximum 1.0e-4;
Float64 colorBarMinimum 0.0;
String units "MM/H";
}
synop_code {
Int32 _FillValue 2147483647;
Int32 actual_range 0, 87;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
}
photosynthetically_active_radiation {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 2380.0;
Float64 colorBarMaximum 500.0;
Float64 colorBarMinimum -500.0;
Float64 missing_value NaN;
}
shortwave_radiation {
Float64 actual_range 0.0, 1163.0;
Float64 colorBarMaximum 500.0;
Float64 colorBarMinimum -500.0;
Float64 missing_value NaN;
}
total_Ultraviolet_radiation {
Float64 actual_range 0.0, 60.8;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.0;
Float64 missing_value NaN;
}
longwave_radiation {
Float64 actual_range 207.0, 409.0;
Float64 colorBarMaximum 500.0;
Float64 colorBarMinimum -500.0;
Float64 missing_value NaN;
}
}
NC_GLOBAL {
String acquisition_system "ATS [Atmospheric System]";
String cdm_data_type "Trajectory";
String cdm_trajectory_variables "filename,platform_name,platform_id";
String comment
"##Limitations:
Purpose: The purpose of this datasets is to serve as continuation of the previous AVOS (Automated Voluntary Observation Ship) after 2023. The AVOS system provided standard meteorological parameters. The actual ATS adds more, such as shortwave and long wave radiation fluxes
Supplemental Information: Summary: Not Applicable Research Program(s): Amundsen Science. For further information: amundsen.data@as.ulaval.ca";
String contributor_name "Amundsen Science;Amundsen Science;Morisset, Simon;Alexandre, Forest";
String contributor_role "owner,distributor;pointOfContact,custodian;collaborator,originator,author;principalInvestigator";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
String creator_city "Québec";
String creator_country "Canada";
String creator_email "amundsen.data@as.ulaval.ca";
String creator_institution "Amundsen Science";
String creator_name "Amundsen Science";
String creator_ror "https://ror.org/02s3xv195";
String creator_type "institution";
String creator_url "https://amundsenscience.com";
String date_created "2025-07-15";
String date_modified "2026-09-29T14:36:14.661Z";
String doi "https://doi.org/10.5884/13391";
Float64 Easternmost_Easting -52.342885;
String end_date_time_utc "20240221T193600Z";
Float64 end_latitude_degrees_n 48.30502;
Float64 end_longitude_degrees_e -70.26002;
String featureType "Trajectory";
Float64 geospatial_lat_max 82.418105;
Float64 geospatial_lat_min 46.809562;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -52.342885;
Float64 geospatial_lon_min -98.5080702;
String geospatial_lon_units "degrees_east";
String history
"2026-07-10T17:25:03.704883 Generated with ocean_data_parser v0.7.0
2026-10-24T14:59:12Z (local files)
2026-10-24T14:59:12Z https://erddap.amundsenscience.com/erddap/tabledap/amundsen13391.html";
String ices_code "18DL";
String id "f8a1b827-3bcf-40f8-87b6-edcec2e77575";
String infoUrl "https://catalogue.hakai.org/dataset/ca-cioos_None";
String institution "Amundsen Science";
String keywords "Air temperature, Arctic Ocean, Baffin Bay, Baffin Bay - OABMI, Beaufort Sea - KAALA, Canadian Arctic Ocean, CIOOS:other, Dewpoint, Humidity, Labrador Sea - ABAVX, Meteorological, Ship, Wind direction, Wind speed";
String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
String latitude "Latitude [degrees N]";
String license "https://creativecommons.org/licenses/by/4.0";
String longitude "Longitude [degrees E]";
String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/M0F6fZYtcJUKlGEau8NWAvMoAok2/-OxCK6DTwijy02JbZecS";
String metadata_link "https://doi.org/10.5884/13391";
String naming_authority "ca.cioos";
Float64 Northernmost_Northing 82.418105;
String pdc_ccin "13391";
String photosynthetically_active_radiation "Photosynthetically Active Radiation 400-700 nm [umol/s/m^2]";
String platform "ship";
String platform_name "CCGS Amundsen";
String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
String product_version "1.0";
String progress "onGoing";
String project "ArcticNet,BREA,CASES,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 "info@as.ulaval.ca";
String publisher_institution "Amundsen Science";
String publisher_name "Amundsen Science";
String publisher_type "institution";
String publisher_url "amundsenscience.com";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 46.809562;
String standard_name_vocabulary "CF Standard Name Table v70";
String start_date_time_utc "20240209T012300Z";
Float64 start_latitude_degrees_n 48.25497;
Float64 start_longitude_degrees_e -70.11643;
String subsetVariables "platform_name,platform_id,cruise_number";
String summary "Until 2022, the AVOS system served as the primary onboard meteorological data source for the Canadian Coast Guard Ship Amundsen. Managed by Environment Canada, AVOS involved annual sensor installation and removal, while Amundsen Science oversaw data processing. The system continuously recorded standard meteorological parameters such as wind speed, wind direction, air temperatures, humidity, dew point, and atmospheric pressure along the ship's tracks during its annual scientific expeditions in Canadian Arctic regions. In 2023, the new ATmospheric System (ATS) was added to the pool of instruments aboard the CCGS Amundsen and is solely managed by Amundsen Science technicians. It replaced the AVOS system as a primary onboard meteorological data source. The ATS offers expanded capabilities, recording not only core atmospheric parameters but also shortwave and longwave radiation fluxes, PAR (Photosynthetically Active Radiation), surface temperature, and cloud cover. The AVOS system is still operational, but its data will no longer be published. They serve only as references for comparison and validation of ATS data. Amundsen Science?s responsibilities regarding the ATS include sensor deployment, system maintenance, and data processing. Both ATS and AVOS are operating concurrently aboard the CCGS Amundsen during each expedition.";
String time "Acquisition time [yyyymmddTHHMMSSZ]";
String title "ATmospheric System (ATS) data collected aboard the CCGS Amundsen in the Canadian Arctic.";
Float64 Westernmost_Easting -98.5080702;
}
}
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.