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.