ERDDAP
Easier access to the Amundsen Science data
Easier access to the Amundsen Science data
| Dataset Title: | AVOS Meteorological Data collected by the CCGS Amundsen in the Canadian Arctic
|
| Institution: | Amundsen Science (Dataset ID: amundsen12518) |
| Range: | longitude = -172.564 to -48.16274°E, latitude = 44.26324 to 81.83613°N |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Data Access Form
| Files
|
|
Click on the map to specify a new center point.
Zoom:
![[The graph you specified. Please be patient.]](https://erddap.amundsenscience.com/erddap/tabledap/amundsen12518.png?longitude,latitude,platform_id&time%3E=2025-12-08T00%3A00%3A00Z&time%3C=2025-12-15T00%3A00%3A00Z&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
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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 44.26324, 81.83613;
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 -172.564, -48.16274;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String source_name "Long";
String standard_name "longitude";
String units "degrees_east";
}
Wind_dir {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 360.0;
Float64 colorBarMaximum 360.0;
Float64 colorBarMinimum 0.0;
String long_name "True Wind Direction";
Float64 missing_value NaN;
String standard_name "wind_from_direction";
String units "degrees N";
}
Wind_speed {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 54.3;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String long_name "True Wind Speed";
Float64 missing_value NaN;
String standard_name "wind_speed";
String units "Knt";
}
Air_temp {
Float64 _FillValue NaN;
Float64 actual_range -30.0, 29.5;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum -10.0;
String long_name "Air Temperature";
Float64 missing_value NaN;
String standard_name "air_temperature";
String units "deg_C";
}
Dew_point {
Float64 _FillValue NaN;
Float64 actual_range -30.0, 21.0;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum 0.0;
String long_name "Dew Point";
Float64 missing_value NaN;
String standard_name "dew_point_temperature";
String units "deg_C";
}
Pressure {
Float64 _FillValue NaN;
Float64 actual_range 977.3, 1049.1;
Float64 colorBarMaximum 1050.0;
Float64 colorBarMinimum 950.0;
String long_name "Atmospheric Pressure";
Float64 missing_value NaN;
String standard_name "air_pressure";
String units "hPa";
}
}
NC_GLOBAL {
String air_temp "Air temperature [deg C]";
String ccin "12518";
String cdm_data_type "Trajectory";
String cdm_trajectory_variables "filename,platform_name,platform_id";
String comment
"##Limitations:
Purpose: Meteorological data recorded by Environment Canada Automated Voluntary Observing Ship (AVOS) system during the CCGS Amundsen scientific expeditions constitute ancillary data for all other data recorded during the expeditions by providing the prevailing atmospheric conditions in which biological, chemical and physical samplings were conducted.
Supplemental Information: Summary: Not Applicable Research Program(s): IPY,GreenEdge,DFO,NETCARE,ArcticNet,CASES,IPY,BREA. For further information: http://doi.org/10.5884/12518";
String contributor_name "Alexandre, Forest;Gola, Erich;Linkowski, Thomas;Morisset, Simon;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 Science Core Data Collection DATA Coordinator";
String creator_type "institution";
String creator_url "amundsenscience.com";
String date_created "2024-07-17";
String date_modified "2024-07-17T00:00:00Z";
String dew_point "Dew point [deg C]";
String doi "https://doi.org/10.5884/12518";
Float64 Easternmost_Easting -48.16274;
String end_date_time_utc "2022-10-19T10:29:00";
String featureType "Trajectory";
Float64 final_latitude_deg 46.8097;
Float64 final_longitude_deg -71.20133;
Float64 geospatial_lat_max 81.83613;
Float64 geospatial_lat_min 44.26324;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -48.16274;
Float64 geospatial_lon_min -172.564;
String geospatial_lon_units "degrees_east";
String history
"2025-12-14T17:58:43Z (local files)
2025-12-14T17:58:43Z https://erddap.amundsenscience.com/tabledap/amundsen12518.das";
String id "ccin-12518";
String infoUrl "https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=12518";
Float64 initial_latitude_deg 63.7018;
Float64 initial_longitude_deg -68.48274;
String institution "Amundsen Science";
String keywords "Air temperature, Arctic Canadian Seas, Arctic Ocean, Baffin Bay, Beaufort Sea, Dewpoint, Humidity, Labrador Sea, Meteorological, Pressure, Wind direction, Wind speed";
String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
String lat "Latitude [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-12518";
String metadata_link "https://doi.org/10.5884/12518";
String naming_authority "ca.cioos";
Float64 Northernmost_Northing 81.83613;
String pdc_ccin "12518";
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,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 "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/10.5884/12518";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 44.26324;
String standard_name_vocabulary "CF Standard Name Table v79";
String start_date_time_utc "2022-09-22T23:01:00";
String subsetVariables "platform_name,platform_id,cruise_number";
String summary "Environment Canada installed a meteorological system on the Voluntary Observing Ship (VOS) scheme part of the CCGS Amundsen. The system is composed of a Digital Barometer (Vaisala PTB-210), an R.M Anemometer (Young 05103) and a Humidity-Temperature Meteorological sensor (Rotronic MP101). The system continuously recorded Atmospheric pressure, Wind Speed and Direction, Air temperature and Humidity every 4 seconds for the CCGS Amundsen expeditions between 2004 and 2021. No data was collected in 2012 since the vessel was undergoing maintenance (dry docks). The true wind was directly calculated by the system using the ship's gyrocompass, the recorded apparent wind and Global Positioning System (GPS) data (speed and track of the ship from POS-MV and C-NAV Differential Global Navigation Satellite System (DGNSS) Precise Point positioning systems). Then the AVOS system averaged the data at 10 minute or hourly intervals. Outliers and suspicious measurements were removed from the dataset and the resulting controlled data are provided at 10 minute or hourly intervals for each day of the expeditions. Research programs participating in the Amundsen expeditions between 2004 and 2023 include CASES, ArcticNet, CFL, Geotraces, Malina, IOL and BP, BREA, Weston, Netcare, JAMSTEC, Statoil and iBO, GreenEdge, BaySys, Sentinel North, Nunavik Inuit Health Survey, Kitikmeot Marine Ecosystems Study, AZOMP, ISECOLD, KEBABB, CHS, NRCan, PeCaBeau, Dark Edge, and RADCARBBS.";
String time_coverage_duration "P26DT11H26M0S";
String time_coverage_start "2004-06-25T00:00:00";
String title "AVOS Meteorological Data collected by the CCGS Amundsen in the Canadian Arctic";
Float64 Westernmost_Easting -172.564;
String wind_dir "True wind direction [degrees N]";
String wind_speed "True wind speed [Knt]";
}
}
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.