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| Dataset Title: | Stratigraphy and ground ice content of borehole 76:13/8-2 on Ellef Ringnes Island, Nunavut, Canada 
|
| Institution: | Geological Survey of Canada (Dataset ID: Hodgson_1982_44778_17569) |
| Information: | Summary
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| FGDC
| ISO 19115
| Metadata
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Attributes {
s {
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 78.35048, 78.35048;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String standard_name_url "https://mmisw.org/ont/cf/parameter/latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -102.5889, -102.5889;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String standard_name_url "https://mmisw.org/ont/cf/parameter/longitude";
String units "degrees_east";
}
profile {
String cf_role "profile_id";
String ioos_category "Identifier";
String long_name "Unique profile identifier";
}
surface_elevation {
Float32 actual_range 9.96921e+36, 9.96921e+36;
String ioos_category "Location";
String long_name "Ground surface elevation";
String standard_name "height_above_reference_ellipsoid";
String units "m";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 2.402784e+8, 2.402784e+8;
String axis "T";
String calendar "standard";
String ioos_category "Time";
String long_name "Date of measurement";
String standard_name "time";
String standard_name_url "https://mmisw.org/ont/cf/parameter/time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
platform_name {
String ioos_category "Identifier";
String long_name "Borehole or site name";
String standard_name "platform_name";
}
depth_below_ground_surface {
Int32 _ChunkSizes 1024;
String _CoordinateAxisType "Height";
Float32 actual_range 0.1, 2.15;
String axis "Z";
String bounds "depth_bounds";
String ioos_category "Location";
String long_name "Depth to midpoint of interval";
String positive "down";
String standard_name "depth";
String standard_name_url "https://mmisw.org/ont/cf/parameter/depth";
String units "m";
}
top_of_interval {
Int32 _ChunkSizes 1024;
Float32 actual_range 0.0, 2.1;
String ioos_category "Location";
String long_name "Depth to top of interval";
String positive "down";
String standard_name "depth";
String standard_name_url "https://mmisw.org/ont/cf/parameter/depth";
String units "m";
}
bottom_of_interval {
Int32 _ChunkSizes 1024;
Float32 actual_range 0.2, 2.2;
String ioos_category "Location";
String long_name "Depth to bottom of interval";
String positive "down";
String standard_name "depth";
String standard_name_url "https://mmisw.org/ont/cf/parameter/depth";
String units "m";
}
sand {
Int32 _ChunkSizes 10;
Float32 actual_range 31.0, 37.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Sand content (by mass)";
Float64 max_diameter_mm 2.0;
Float64 min_diameter_mm 0.063;
String standard_name "mass_fraction_of_sand_in_soil";
String standard_name_url "https://mmisw.org/ont/cf/parameter/mass_fraction_of_sand_in_soil";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
silt {
Int32 _ChunkSizes 10;
Float32 actual_range 19.0, 38.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Silt content (by mass)";
Float64 max_diameter_mm 0.063;
Float64 min_diameter_mm 0.004;
String standard_name "mass_fraction_of_silt_in_soil";
String standard_name_url "https://mmisw.org/ont/cf/parameter/mass_fraction_of_silt_in_soil";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
clay {
Int32 _ChunkSizes 10;
Float32 actual_range 31.0, 38.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Clay content (by mass)";
Float64 max_diameter_mm 0.004;
String standard_name "mass_fraction_of_clay_in_soil";
String standard_name_url "https://mmisw.org/ont/cf/parameter/mass_fraction_of_clay_in_soil";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
gravel {
Int32 _ChunkSizes 10;
Float32 actual_range 0.0, 1.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Gravel content (by mass)";
Float64 min_diameter_mm 2.0;
String standard_name "mass_fraction_of_gravel_in_soil";
String standard_name_url "https://mmisw.org/ont/cf/parameter/mass_fraction_of_gravel_in_soil";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
excess_ice {
Int32 _ChunkSizes 10;
Float32 actual_range 0.0, 1.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Ice Distribution";
String long_name "Excess ice content";
String standard_name "ice_volume_in_frozen_ground_in_excess_of_pore_volume_in_unfrozen_ground_expressed_as_fraction_of_frozen_ground_volume";
String standard_name_url "https://mmisw.org/ont/cf/parameter/ice_volume_in_frozen_ground_in_excess_of_pore_volume_in_unfrozen_ground_expressed_as_fraction_of_frozen_ground_volume";
String units "percent";
Float32 valid_min 0.0;
}
ground_ice_class {
Int32 _ChunkSizes 1, 64;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Ground ice classification";
}
liquid_limit {
Int32 _ChunkSizes 10;
Float32 actual_range 29.0, 31.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Atterberg liquid limit";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
plastic_limit {
Int32 _ChunkSizes 10;
Float32 actual_range 20.0, 29.0;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Atterberg plastic limit";
String units "percent";
Float32 valid_max 100.0;
Float32 valid_min 0.0;
}
soil_ph {
Int32 _ChunkSizes 10;
Float32 actual_range 1.1, 1.1;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Soil water pH";
String standard_name "soil_water_ph";
String standard_name_url "https://mmisw.org/ont/cf/parameter/soil_water_ph";
}
materials {
Int32 _ChunkSizes 1, 64;
String coordinates "depth_below_ground_surface bottom_of_interval top_of_interval time latitude longitude platform_name profile";
String ioos_category "Other";
String long_name "Material classification";
}
geo_unit {
Int32 _ChunkSizes 1, 70;
String ioos_category "Other";
String long_name "Geological Unit";
}
}
NC_GLOBAL {
String _NCProperties "version=2,netcdf=4.7.3,hdf5=1.10.6";
String acknowledgement "Willing and able assistance in an unpleasant climate was given by A.C. Liard and W .G. Green (Graham Island, 1974); R. O'Breham and W.R. Archer (Ellef Ringners and King Christian islands, 1976); C.N.D. Hotze! and W.R. Archer (Amund Ringnes, Cornwall, and King Christian islands, 1977). Aircraft support in 1976 and 1977 was provided by Polar Continental Shelf Project of the Department of Energy, Mines and Resources. The report was critically read by Dr. L.A. Dredge, who suggested a number of improvements and alternative interpretations. Result digitizing was supported by PermafrostNet Theme 1.";
String cdm_altitude_proxy "depth_below_ground_surface";
String cdm_data_type "Profile";
String cdm_profile_variables "profile";
String comments "The location of the borehole was given using the National Topographic System Grid Reference in the report, then repositioned manually to obtain GPS coordinates, so it should be considered approximate.";
String contributor_email ",samuel.gagnon.1@gmail.com,,";
String contributor_name "Douglas A. Hodgson, Samuel Gagnon, Mohammadhossein Gamshadzaei, Michel Paquette";
String contributor_role "principalInvestigator,pointOfContact,distributor,distributor";
Float64 contributor_url NaN;
String Conventions "CF-1.6, ACDD-1.3";
Float64 creator_email NaN;
String creator_name "Geological Survey of Canada";
String creator_type "institution";
String creator_url "https://www.nrcan.gc.ca/science-and-data/research-centres-and-labs/geological-survey-canada/17100";
String date_created "1982-01-01";
String date_issued "2022-06-09";
String date_modified "2022-06-09";
Float64 Easternmost_Easting -102.5889;
Float64 environment_description NaN;
String featureType "Profile";
Float64 geospatial_lat_max 78.35048;
Float64 geospatial_lat_min 78.35048;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -102.5889;
Float64 geospatial_lon_min -102.5889;
String geospatial_lon_units "degrees_east";
Float64 ground_slope_angle NaN;
Float64 ground_slope_direction NaN;
String history
"2024-11-24T18:50:00Z (local files)
2024-11-24T18:50:00Z http://data.permafrostnet.ca/erddap/tabledap/Hodgson_1982_44778_17569.html";
String infoUrl "https://doi.org/10.4095/109296";
String institution "Geological Survey of Canada";
String keywords "cryosols, ellef ringnes island, ground ice, nunavut, permafrost, soils";
Float64 land_units NaN;
String license "https://open.canada.ca/en/open-government-licence-canada";
String location "Ellef Ringnes Island";
String metadata_link "https://doi.org/10.4095/109296";
Float64 Northernmost_Northing 78.35048;
String observation_depth_max "2.2";
String observation_depth_min "0";
Float64 organic_matter_thickness NaN;
Float64 overburden_thickness NaN;
String permafrost_status "present";
String platform "borehole";
String platform_id "WSAI_76:13/8-2";
Float64 platform_orientation NaN;
String platform_pitch_fore_down "90";
String processing_level "The data was retrieved from a digital version of the report \"Surficial Materials, southern Ellef Ringnes, King Christian and Adjacent Islands, District of Franklin (1982)\"; the data was retranscribed manually and some fields were uniformized across all boreholes (e.g., surface deposits, soil material). ";
String project "Surficial Materials and Geomorphological Processes, Western Sverdrup and Adjacent Islands, District of Franklin";
String project_id "GSC_WSAI_1982";
String publisher_name "Geological Survey of Canada";
String publisher_type "institution";
String publisher_url "https://www.nrcan.gc.ca/science-and-data/research-centres-and-labs/geological-survey-canada/17100";
String references "https://doi.org/10.4095/109296";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 78.35048;
String standard_name_vocabulary "CF Standard Name Table v78";
String summary "To quantify the ground volumes on Ellef Ringnes Island NU, Canada), 100 boreholes were drilled to depths up to 3 meters from 1974 to 1977. This borehole was drilled on 1976-08-13 with a hand-held modified CRREL drill and is 2.2 m deep. The dataset describes active layer thickness, soil stratigraphy and characteristics (grain size analyses, soil liquid limit, plastic limit, plasticity index, carbonate content), volumetric ground ice content, and surface deposits. Soil characteristics were determined in the laboratory, and volumetric ice content was determined with a combination of visual estimates and laboratory measurements. ";
String surface_cover "unknown";
String surficial_geology "marine";
String time_coverage_end "1977-08-13T00:00:00Z";
Float64 time_coverage_resolution NaN;
String time_coverage_start "1977-08-13T00:00:00Z";
String title "Stratigraphy and ground ice content of borehole 76:13/8-2 on Ellef Ringnes Island, Nunavut, Canada";
String vegetation_type "Not recorded";
Float64 Westernmost_Easting -102.5889;
}
}
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.