ERDDAP
Easier access to the Amundsen Science data
Easier access to the Amundsen Science data
| Dataset Title: | Trace element concentrations in the water column of the Canadian Arctic Ocean measured from the CCGS Amundsen in 2009, 2019, 2021, 2022 and 2024 
|
| Institution: | University of Victoria (Dataset ID: cullenj_bscs-3y08) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
year {
Int32 _FillValue -9999;
Int32 actual_range 2009, 2025;
String ioos_category "Time";
String long_name "Year";
String units "1";
}
station {
String ioos_category "Identifier";
String long_name "Station Identifier";
}
year_station {
String cf_role "profile_id";
String ioos_category "Identifier";
String long_name "Year-Station Identifier";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.25185362e+9, 1.72914234e+9;
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";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 actual_range -139.3929, -51.87299;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 actual_range 66.5927, 81.761;
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";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 actual_range 0.0, 2898.688;
String axis "Z";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum 0.0;
String colorBarPalette "TopographyDepth";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
pressure {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 2949.483;
String axis "Z";
String ioos_category "Pressure";
String long_name "Sea Water Pressure";
String positive "down";
String standard_name "sea_water_pressure";
String units "dbar";
}
temperature {
Float32 _FillValue NaN;
Float32 actual_range -1.7, 8.15;
Float32 colorBarMaximum 32.0;
Float32 colorBarMinimum -2.0;
String colorBarPalette "KT_thermal";
String ioos_category "Temperature";
String long_name "Sea Water Temperature";
String standard_name "sea_water_temperature";
String units "degrees_celsius";
}
potential_temperature {
Float64 _FillValue NaN;
Float64 actual_range -1.661, 6.363;
String ioos_category "Temperature";
String long_name "Potential Temperature";
String standard_name "sea_water_potential_temperature";
String units "degrees_celsius";
}
practical_salinity {
Float32 _FillValue NaN;
Float32 actual_range 21.835, 34.9559;
Float32 colorBarMaximum 37.0;
Float32 colorBarMinimum 32.0;
String ioos_category "Salinity";
String long_name "Sea Water Practical Salinity";
String standard_name "sea_water_practical_salinity";
String units "1";
}
density {
Float64 _FillValue NaN;
Float64 actual_range 1020.369, 1041.7252;
String long_name "Sea Water Density";
String standard_name "sea_water_density";
String units "kg m-3";
}
sigma_t {
Float32 _FillValue NaN;
Float32 actual_range 17.351, 28.089;
String long_name "Sigma-T";
String standard_name "sea_water_sigma_t";
String units "kg m-3";
}
sigma_theta {
Float32 _FillValue NaN;
Float32 actual_range 17.351, 27.938;
String long_name "Sea Water Sigma Theta";
String standard_name "sea_water_sigma_theta";
String units "kg m-3";
}
sound_velocity {
Float32 _FillValue NaN;
Float32 actual_range 1440.01, 1468.17;
String long_name "Sound Velocity";
String standard_name "speed_of_sound_in_sea_water";
String units "m s-1";
}
oxygen_solubility {
Float32 _FillValue NaN;
Float32 actual_range 7.424, 8.501;
String ioos_category "Dissolved Gases";
String long_name "Oxygen Solubility";
String standard_name "oxygen_solubility_in_sea_water";
String units "mL/L";
}
dissolved_oxygen_umol {
Float32 _FillValue NaN;
Float32 actual_range 194.798, 416.529;
Float32 colorBarMaximum 400.0;
Float32 colorBarMinimum 0.0;
String ioos_category "Dissolved Gases";
String long_name "Dissolved Oxygen";
String standard_name "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water";
String units "µmol/L";
}
dissolved_oxygen_ml {
Float32 _FillValue NaN;
Float32 actual_range 5.82737, 8.79805;
Float32 colorBarMaximum 10.0;
Float32 colorBarMinimum 0.0;
String ioos_category "Dissolved Gases";
String long_name "Dissolved Oxygen";
String standard_name "volume_fraction_of_oxygen_in_sea_water";
String units "mL/L";
}
nitrite {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.402;
String ioos_category "Nutrients";
String long_name "Nitrite";
String standard_name "mole_concentration_of_nitrite_in_sea_water";
String units "µmol/L";
}
nitrate {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 18.52;
Float32 colorBarMaximum 50.0;
Float32 colorBarMinimum 0.0;
String ioos_category "Nutrients";
String long_name "Nitrate";
String standard_name "mole_concentration_of_nitrate_in_sea_water";
String units "µmol/L";
}
silicate {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 37.78785943;
String ioos_category "Nutrients";
String long_name "Silicate";
String standard_name "mole_concentration_of_silicate_in_sea_water";
String units "µmol/L";
}
phosphate {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 2.030419244;
String ioos_category "Nutrients";
String long_name "Phosphate";
String standard_name "mole_concentration_of_phosphate_in_sea_water";
String units "µmol/L";
}
light_transmission {
Float32 _FillValue NaN;
Float32 actual_range 92.588, 99.718;
String long_name "Light Transmission";
String units "%";
}
dissolved_vanadium {
Float64 _FillValue NaN;
Float64 actual_range 9.157571228, 29.47132329;
String ioos_category "Trace Metals";
String long_name "Dissolved Vanadium";
String units "nmol/kg";
}
dissolved_vanadium_error {
Float64 _FillValue NaN;
Float64 actual_range 0.014885889, 6.04764979;
String long_name "Dissolved Vanadium Error";
String units "nmol/kg";
}
dissolved_barium {
Float64 _FillValue NaN;
Float64 actual_range 7.875719701, 115.7990888;
String ioos_category "Trace Metals";
String long_name "Dissolved Barium";
String units "nmol/kg";
}
dissolved_barium_error {
Float64 _FillValue NaN;
Float64 actual_range 0.029030869, 17.09187185;
String long_name "Dissolved Barium Error";
String units "nmol/kg";
}
dissolved_manganese {
Float64 _FillValue NaN;
Float64 actual_range 0.125912594, 284.377475;
String ioos_category "Trace Metals";
String long_name "Dissolved Manganese";
String units "nmol/kg";
}
dissolved_manganese_error {
Float64 _FillValue NaN;
Float64 actual_range 0.001554521, 4.949038898;
String long_name "Dissolved Manganese Error";
String units "nmol/kg";
}
dissolved_iron {
Float64 _FillValue NaN;
Float64 actual_range 0.031477278, 161.1737957;
String ioos_category "Trace Metals";
String long_name "Dissolved Iron";
String units "nmol/kg";
}
dissolved_iron_error {
Float64 _FillValue NaN;
Float64 actual_range 7.45546e-4, 2.507676672;
String long_name "Dissolved Iron Error";
String units "nmol/kg";
}
dissolved_cobalt {
Float64 _FillValue NaN;
Float64 actual_range 15.61241223, 1368.720558;
String ioos_category "Trace Metals";
String long_name "Dissolved Cobalt";
String units "pmol/kg";
}
dissolved_cobalt_error {
Float64 _FillValue NaN;
Float64 actual_range 0.141180478, 16.99771659;
String long_name "Dissolved Cobalt Error";
String units "pmol/kg";
}
dissolved_nickel {
Float64 _FillValue NaN;
Float64 actual_range 2.520470755, 12.30895038;
String ioos_category "Trace Metals";
String long_name "Dissolved Nickel";
String units "nmol/kg";
}
dissolved_nickel_error {
Float64 _FillValue NaN;
Float64 actual_range 0.008732131, 0.414656308;
String long_name "Dissolved Nickel Error";
String units "nmol/kg";
}
dissolved_copper {
Float64 _FillValue NaN;
Float64 actual_range 0.562788467, 9.335269592;
String ioos_category "Trace Metals";
String long_name "Dissolved Copper";
String units "nmol/kg";
}
dissolved_copper_error {
Float64 _FillValue NaN;
Float64 actual_range 0.004060766, 0.23172289;
String long_name "Dissolved Copper Error";
String units "nmol/kg";
}
dissolved_zinc {
Float64 _FillValue NaN;
Float64 actual_range 0.142052504, 10.66988661;
String ioos_category "Trace Metals";
String long_name "Dissolved Zinc";
String units "nmol/kg";
}
dissolved_zinc_error {
Float64 _FillValue NaN;
Float64 actual_range 0.002707491, 0.68024407;
String long_name "Dissolved Zinc Error";
String units "nmol/kg";
}
dissolved_cadmium {
Float64 _FillValue NaN;
Float64 actual_range 74.52697836, 771.8588324;
String ioos_category "Trace Metals";
String long_name "Dissolved Cadmium";
String units "pmol/kg";
}
dissolved_cadmium_error {
Float64 _FillValue NaN;
Float64 actual_range 0.569833122, 32.93859755;
String long_name "Dissolved Cadmium Error";
String units "pmol/kg";
}
dissolved_lead {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 1973.507282;
String ioos_category "Trace Metals";
String long_name "Dissolved Lead";
String units "pmol/kg";
}
dissolved_lead_error {
Float64 _FillValue NaN;
Float64 actual_range 0.001647377, 19.8420629;
String long_name "Dissolved Lead Error";
String units "pmol/kg";
}
}
NC_GLOBAL {
String cdm_data_type "Profile";
String cdm_feature_type "profile";
String cdm_profile_variables "station, latitude, longitude, year_station";
String contributor_name "Cullen, Jay T.;Anderlini, Tia";
String contributor_role "owner,custodian,distributor;custodian,owner,distributor";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
String creator_city "Victoria";
String creator_country "Canada";
String creator_email "jcullen@uvic.ca";
String creator_institution "University of Victoria";
String creator_name "Cullen, Jay T.";
String creator_orcid "https://orcid.org/0000-0002-6484-2421";
String creator_ror "https://ror.org/04s5mat29";
String creator_type "person";
String creator_url "https://www.uvic.ca";
String date_created "2026-05-26";
String date_modified "2026-05-28T15:03:44.655Z";
String doi "https://doi.org/10.71708/bscs-3y08";
Float64 Easternmost_Easting -51.87299;
String featureType "Profile";
Float64 geospatial_lat_max 81.761;
Float64 geospatial_lat_min 66.5927;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -51.87299;
Float64 geospatial_lon_min -139.3929;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 2898.688;
Float64 geospatial_vertical_min 0.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2026-06-17T14:29:24Z (local files)
2026-06-17T14:29:24Z https://erddap.amundsenscience.com/erddap/tabledap/cullenj_bscs-3y08.html";
String id "19c697c4-c201-4be7-9c91-2340ec280604";
String infoUrl "???";
String institution "University of Victoria";
String keywords "Arctic, chemical oceanography, CIOOS:nutrients, CIOOS:oxygen, CIOOS:seaSurfaceSalinity, CIOOS:subSurfaceTemperature, CIOOS:transientTracers, hydrographic data, macronutrients, oceanographic missions, trace metals";
String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
String license "https://creativecommons.org/licenses/by/4.0";
String metadata_form "https://cioos-siooc.github.io/metadata-entry-form#/en/amundsen/FRp8RVcgu1R5263EfM5HlOjPrLX2/-OtFgudXqjZ6JP0tw-dj";
String metadata_link "https://doi.org/10.71708/bscs-3y08";
String naming_authority "ca.cioos";
Float64 Northernmost_Northing 81.761;
String platform "research vessel";
String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
String processing_level "Quality controlled";
String product_version "1.1";
String progress "completed";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 66.5927;
String subsetVariables "year,station";
String summary "Trace metals in the ocean, including iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), lead (Pb) and vanadium (V), may act as micronutrients or toxins to marine phytoplankton and thereby directly impact primary productivity. In the western Canadian Arctic, the chemical composition of Pacific- and Atlantic-derived waters are modified during transport over the Mackenzie shelf and through the Northwest Passage. Remineralization in sediments on the Chukchi shelf enriches the concentrations of dissolved Cd and Zn – a signature that can be detected in open waters of the Beaufort Sea as well as the Amundsen Gulf. Over the Mackenzie shelf, sediment resuspension acts as a source of Fe and Pb, and the Mackenzie River plume additionally provides high concentrations of most trace metals; however, this does not translate to effective trace metal transport to the Beaufort Sea’s interior. Through the Canadian Arctic Archipelago (CAA), other sources including small rivers, sea ice, and snow are found to supply trace metals to surface waters, further modifying trace metal concentrations as water is transported eastward. Waters entering the eastern Canadian Arctic via Nares Strait and Parry Channel are found to retain the Chukchi shelf signature of Zn, Cd, and Ni, while these enhanced concentrations dissipate over shallow passages prior to entering Baffin Bay. Other trace metal sources in this eastern corridor include glacial meltwater, particularly in Nares Strait and the North Water Polynya immediately south of this passage, while sea ice melt and meteoric water runoff are found to have less significance relative to the western CAA. Estimates of trace metal flux indicate greatest transport of trace metals into Baffin Bay from Nares Strait, followed by the West Greenland Current in eastern Davis Strait, and finally Lancaster Sound. Flux estimates through Davis Strait indicate the Canadian Arctic is a source of Mn, Co, Ni, Cu, Zn, Cd, Pb, Ba and V to the Atlantic, while Fe export via the Baffin Current is equivalent to Fe import via the West Greenland Current.";
String time_coverage_end "2024-10-17T05:19:00Z";
String time_coverage_start "2009-09-02T01:07:00Z";
String title "Trace element concentrations in the water column of the Canadian Arctic Ocean measured from the CCGS Amundsen in 2009, 2019, 2021, 2022 and 2024";
Float64 Westernmost_Easting -139.3929;
}
}
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.