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60-Mile

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General Information

Created: 2014-01-09 10:12:57
Modified: 2015-10-05 12:04:46

Active: No
Country:Canada
Site:Yukon
GTN-P:CA 167
Responsible Countries: Canada,
Timezone:UTC/GMT -07:00 hours
Vegetation Type:Other
Responsible Person:Antoni Lewkowicz
MAGT  (C) : -3.6
MAGT Depth (m) : 23.0
MAGT Date/ Period : Sept 1 2008 - Aug 31 2009

Permafrost present but thickness unknown. 

MEAN ANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C) - report value for most recent year or 12 month interval -3.6°C

Depth of zero annual amplitude (or depth of measurement reported above) (m) 23 m

Year or 12 month interval for mean reported above 2008-09

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

Dawson         64˚2.400’N 139˚7.800’W

Air Temperature is measured at approximately 2m height and recorded every hour. Snow cover measured using i-button technique at 4 hour intervals.

Depth:38.3 m
Drilling Angle:50 °
Deepest Sensor:38.3 m
Drilling Method:Diamond drill (with water and drilling oil). Drilled on a 50˚ angle, thermistor depths have been calculated accordingly.
Date Drilled:01. Aug 2007
Type:Road
Distance From Road:300 m
Type:anthropogenic: trenching (appr. 6 x 100 m)
Distance From Heat:40 m
Other Disturbance:anthropogenic: small road
Distance From Heat:30 m
Slope:5 °
Aspect:0 °
Permafrost Zone:Discontinuous
Lithology:This site is south of the Top of the World Highway in the Yukon, close to the Alaska border. It is a mountainous region with most mountains being within a similar range of height, varying by approximately 300m. Mountain tops are fairly gentle and eroded. Area was never glaciated.
Morphology:The borehole is on a broad plateau, with a gentle upslope to the south to a higher top of the mountain (50m away), and for 180˚ to the north of the borehole the slope is very gentle for about 100m, then gradually gets steeper downwards.
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Longitude:-140.810374 °
Latitude:63.909515 °
Elevation:1450.247925 m
EPSG:4326
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