{"id":265,"name":"Table Mt. A/T4/85-7A","description":"\n\n\t\n\n\t\t\n\n\t\t\t\n\n\t\t\t\n\n\t\t\n\n\t\n\n
MAGT  (C) :-0.6
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MEAN ANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C) – report  value for most recent year or 12 month interval -1.01 °C

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Depth of zero annual amplitude (or depth of measurement reported above)  (m)  20 m 

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Year or 12 month interval for mean reported above   2000

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Range (if applicable) of mean annual ground temperature over observation period (°C)

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-.69°C to –1.01°C from 1985-2000

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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 Fort Simpson 61°45’N 121°14’W

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AIR TEMPERATURE AND SNOW COVER THICKNESS/DENSITY MEASUREMENTS AT THE BOREHOLE SITE (indicate frequency of observations):

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Air temperature: Yes [x ] No [ ] daily   Snow thickness: Yes[x ] No[ ] infrequent  Density: Yes [ ] No[x ]

\n\n","site_id":70,"site_name":"Mackenzie River","country_name":"Canada","active":false,"has_data":true,"date_start":"1987-07-02T00:00:00","date_end":"2015-07-02T00:00:00","datasets_count":1,"timezone":"-05:00","created":"2024-08-21T12:14:26.356456","modified":"2026-05-15T11:42:59.189075","accessibility":{"type":"helicopter","distance_from_road":null},"disturbance":{"disturbance":{"type":"BH off ROW, 19.2 m east of pipeline","distance":19.0},"disturbance_other":{"type":null,"distance":null}},"location":{"elevation":258.913757,"latitude":63.61194,"longitude":-123.64194},"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 \"Table Mt. A/T4/85-7A\" (Canada). Code: A/T4/85-7A, GTN-P PID: pt/265.","citations":[],"related_publications":[],"pictures":[],"environmental_setting":{"slope":0.0,"aspect":266.1,"vegetation_type":"Coniferous Forest","vegetation":null,"hydrology":null,"landform":"Ice-rich lacustrine deposits with massive ice-lenses","lithology":"Ice rich material 0-0.49m peat, 0.49-1.8m silty clay, 1.8-5.46m clay till, below 5.46m clay ","morphology":"plain, hummocky relief","description":null,"prior_records":"Starting 1985 (monthly – annually) after 1995 daily (logger)"},"permafrost_setting":{"permafrost_thickness":"40","permafrost_zone":"Discontinuous","zero_annual_amplitude":null},"gtnp_code":"CA 23","additional_code":"A/T4/85-7A","drilling":{"drilling_method":null,"date_drilled":"1985-01-01T00:00:00","depth":20.0,"drilling_angle":90.0,"diameter":null,"deepest_sensor":20.0},"datasets":[{"id":2073,"data_access":"https://data.gtn-p.org/api/data?pt_data=2073&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":265,"statistics":{"date_start":"1987-07-02T00:00:00","date_end":"2015-07-02T00:00:00","min_value":-0.907,"max_value":-0.63,"avg_value":-0.7466274350714285,"data_points":29,"null_values":1,"max_depth":12.0,"sensors_count":1,"day_count":29}}]}