Snowpit measurements
5 March 2002 at sauna Kilpisjarvi Biological station
weather: overcast, -10 degrees
location: in birch forest on slightly sloping surface near the sauna
Temperature and density profile (density measured with box sampler of 1 l.):
Stratigraphy:
depth (cm) |
description |
0-2 |
new snow, dendrite, very soft |
2-6 |
soft |
6-8 |
hard melt layer, melt crust |
8-40 |
soft/medium hard small crystals |
40-44 |
hard, big crystals, faceted |
44-56 |
loose soft layer, depth hoar |
56-60 |
hard, big crystals, melt crust |
60-70 |
depth hoar |
70-85 |
ice lenses and big grains, ice layer medium hard |
85-100 |
surface hoar |
depth (cm) |
grain size |
0-6 |
average, 1 mm |
6-11 |
fine, 0.5 mm |
11-16 |
fine, 0.5 mm |
16-21 |
fine, 0.5 mm |
21-26 |
very fine, < 0.5 mm |
26-31 |
very fine < 0.5 mm |
31-36 |
fine |
36-41 |
fine |
41-46 |
fine |
46-56 |
average |
56-66 |
average |
66-76 |
coarse |
76-86 |
average |
86-100 |
coarse |
Snow density (measured with water equivalent tube):
depth (cm) |
snow amount (mm w.e.) |
0-41 |
89* |
41-80 |
105 |
0-80 |
194 |
*According to snow density profile, mean snow density of upper 40 cm is 219 kg/m3, which is 87.5 mm w.e.