River Between Two Mountains RBTM-01

Created: 2014-01-08 13:36:34
Modified: 2014-02-12 10:11:06

MEAN ANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C) – report value for most recent year or 12 month interval 4.7°C

Depth of zero annual amplitude (or depth of measurement reported above) 15.0 m

Year or 12 month interval for mean reported above September 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 Fort Simpson (61°45.6’N and 121°14.4’W) is closes to this site, but data is incomplete so Norman Wells values are shown instead.

Norman Wells: 65°16.8’N, 126°48’W

Monthly average air temperatures and snow depths for Jan - Dec 2009

Month             Temp (°C)      Total Snow (cm)

Jan                  -28.7                21.2

Feb                  -23.5                15.8

Mar                 -23.3                12.6

Apr                  -4.3                  10.6

May                 5.7                   6.8

Jun                  14.1                 T

Jul                   16.3                 T

Aug                 14.2                 0

Sept                8.2                   5.0

Oct                  -3.0                  22.4

Nov                 -17.9                13.2

Dec                 -20.7                36.0

MAAT             -5.2

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

Air temperature: Yes [ ] No [X]    Snow thickness: Yes [ ] No[X]   Density: Yes [ ] No[X]