| Site: |
Fort Simpson (C15) |
| Responsibility: |
F. Mark Nixon, mnixon@gsc.nrcan.gc.ca, fax. (613)992-0190 |
| Location: |
61°53'13"N. 121°35'59"W. |
| Elevation: |
165 meters (estimated) |
| Slope: |
flat |
| Landform: |
glaciolacustrine plain |
| Soil: |
25 cm of organic litter over imperfectly drained sand |
| Vegetation: |
Complete ground cover of moss and typical Boreal vascular plants, 2 types
suggesting high moisture content, under mixed spruce, low to moderate canopy density |
| Installations: |
-Thaw tube for active layer development |
| |
-Time domain reflectometry probes to 60, 90,120 cm |
| |
-7 thermistor string to 1.5 m depth (data collection suspended June 1998) |
| |
-7 sensor soil temperature and potential to 48 cm (data collection
suspended August, 1999) |
| |
-air and ground temperature mast |
| |
-100 meter grid for active layer probing according to CALM protocol |
| |
|
|
air |
ground (7 cm) |
|
| |
1994 |
Mean |
-3.42°C |
0.34 |
|
| |
|
Max. |
36.43 |
20.93 |
|
| |
|
Min. |
-46.22 |
-14.52 |
|
| |
1995 |
Mean |
-2.85 |
0.59 |
|
| |
|
Max. |
32.40 |
19.33 |
|
| |
|
Min. |
-44.40 |
-15.38 |
|
| |
1996 |
Mean |
-4.2* |
45 |
mid-summer days missing |
| |
|
Max. |
30.61 |
19.23 |
|
| |
|
Min. |
-46.35 |
-19.73 |
|
| |
1997 |
Mean |
-2.7* |
0.24 |
8 days missing from July |
| |
|
Max. |
31.53 |
18.38 |
|
| |
|
Min. |
-43.28 |
-14.68 |
|
| |
1998 |
Mean |
-1.74 |
1.34 |
|
| |
|
Max |
31.52 |
20.31 |
|
| |
|
Min |
-43.83 |
-11.69 |
|
| |
1999 |
Mean |
-2.58 |
1.61 |
|
| |
|
Max |
32.96 |
19.01 |
|
| |
|
Min |
-41.41 |
-10.03 |
|
| |
2000 |
Mean |
-3.76 |
0.85 |
|
| |
|
Max |
31.03 |
13.34 |
|
| |
|
Min |
-44.86 |
-4.42 |
|
| |
*Site air temperature for 1996-97 from reconstructed data. |
| Met Station: |
Fort Simpson, 61°46'N. 121°14'W. |
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