MEAN ANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C) – report value for most recent year or 12 month interval -14.7 °C
\n\n\n\nDepth of zero annual amplitude (or depth of measurement reported above) (m) 15.24 m
\n\n\n\nYear or 12 month interval for mean reported above 2000
\n\n\n\nRange (if applicable) of mean annual ground temperature over observation period (°C)
\n\n\n\n-15.4 to –14.7 (1979-2000)
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NAME AND LOCATION OF CLOSEST CLIMATE STATION (latitude, longitude, and distance from borehole, km) – provide (if available) mean monthly air temperature and snow depth of reporting interval for mean annual ground temperature Alert 82.518°N 62.281°W
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AIR TEMPERATURE AND SNOW COVER THICKNESS/DENSITY MEASUREMENTS AT THE BOREHOLE SITE (indicate frequency of observations):
\n\n\n\nAir temperature: Yes [x] No [ ] daily Snow thickness: Yes[x] No[ ] monthly-quarterly Density: Yes [ ] No[x]
\n\n","site_id":360,"site_name":"Ellesmere Island","country_name":"Canada","active":false,"has_data":true,"date_start":"1978-07-02T00:00:00","date_end":"2014-07-02T00:00:00","datasets_count":1,"timezone":"-05:00","created":"2024-08-21T12:14:26.356456","modified":"2026-05-15T11:42:59.189075","accessibility":{"type":"truck from CFS Alert ","distance_from_road":null},"disturbance":{"disturbance":{"type":null,"distance":null},"disturbance_other":{"type":null,"distance":null}},"location":{"elevation":64.73867798,"latitude":82.5,"longitude":-62.41666667},"contacts":[{"orcid":null,"first_name":"Mark","last_name":"Nixon","role":"","position":"","address":{"address":"601 Booth St.,","zip":"Ontario, K1A 0E8","city":"Ottawa","country":"Canada","phone":"(613) 992-2469","url":"","email":"mnixon@gsc.nrcan.gc.ca"}},{"orcid":null,"first_name":"Sharon","last_name":"Smith","role":"Investigator","position":"","address":{"address":"Geological Survey of Canada Natural Resources Canada, 601 Booth St.","zip":"K1A 0E8","city":"Ottawa","country":"Canada","phone":"+(1)-613 947-7066","url":"","email":"ssmith@nrcan.gc.ca"}},{"orcid":null,"first_name":"Margo","last_name":"Burgess","role":"","position":"","address":{"address":" Geological Survey of Canada, 601 Booth St.","zip":"K1A 0E8","city":"Ottawa","country":"Canada","phone":"","url":"","email":"mburgess@nrcan.gc.ca"}}],"generic_citation":"Mark Nixon, Sharon Smith, Margo Burgess: Permafrost Temperature (PT) at \"Alert 5\" (Canada). Additional Code: CA 46, GTN-P PID: pt/369.","citations":[],"related_publications":[],"pictures":[],"environmental_setting":{"slope":2.0,"aspect":0.0,"vegetation_type":"Polar Desert","vegetation":null,"hydrology":null,"landform":"Till moraine veneer","lithology":"0-2.4m Overburden (till) and shattered rock infilled with ice up to 3cm thick, 2.4-15.2m Argillite ","morphology":"Valley","description":null,"prior_records":"Starting 1978 monthly-quarterly, after 2000 daily (logger)"},"permafrost_setting":{"permafrost_thickness":">600","permafrost_zone":"Continuous","zero_annual_amplitude":null},"gtnp_code":"CA 46","additional_code":null,"drilling":{"drilling_method":null,"date_drilled":"1978-01-01T00:00:00","depth":15.24,"drilling_angle":90.0,"diameter":null,"deepest_sensor":15.24},"datasets":[{"id":2079,"data_access":"https://data.gtn-p.org/api/data?pt_data=2079&combined=false","description":null,"policy":"Open","quality":"Quality Controlled Data","medium":"Soil","created":"2024-08-21T14:17:30.639478","modified":"2024-12-11T13:05:47.665493","variable":"Ground Temperature","unit":{"name":"Degree Celsius","abbreviation":"degC"},"method":{"name":"Thermistor Automated","description":"Measurements from a thermistor that are collected with a datalogger or other recording device."},"datatype":"Average","frequency":"Annually","borehole_id":369,"statistics":{"date_start":"1978-07-02T00:00:00","date_end":"2014-07-02T00:00:00","min_value":-15.4,"max_value":-13.10478685,"avg_value":-14.570581113611114,"data_points":37,"null_values":1,"max_depth":15.0,"sensors_count":1,"day_count":37}}]}