114
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
1989). The present study reports on particle entrainment into newly forming sea ice,
documented during freeze-up in the Laptev Sea (Siberian Arctic) in October 1995.
124
126
128
130
74
74 N
29202
LaptevSea
29101
73
73 N
72
72 N
124 E
126 E
128 E
130 E
Figure 1: Study area and location of ice stations during the expedition Transdrift III (27. Sept.
- 31. Oct. 1995). The first three digits of the station numbers are days of the year.
Methods
One aim of the Transdrift III expedition (27. Sept. - 31. Oct. 1995) conducted in the Laptev Sea
aboard the Russian lIB "Kapitan Dranitsyn", was to study sediment entrainment into sea ice. In
this paper, we focus on samples taken in and adjacent to the Lena Delta (Figure 1). A total of
seven cores of young ice (13 to 20 cm thick) were sampled by means of an ice auger (9 cm
diameter) on one helicopter and two ship stations. At two additional ship stations, three samples
of nilas were taken by hand from a diving plattform, lowered to the ice surface. The ice cores
were split into smaller sections of about 10 cm thickness, and all ice samples were melted at
room temperature and vacuum filtered over 0.45 J.1m Durapore and Whatman GFIF filters.
Afterwards, the filters were desalinated with distilled water and freeze-dryed.
The water column was sampled on three ship stations, using a 5 L water sampler, from which
I L was subsampled. A total of seven water samples were taken in 0, 5, 10 and 18 m water
depth. Additionally, four water samples were taken from directly beneath the ice underside. At
one helicopter station, three samples of the Lena River water were taken with aIL plastic
bottle. The suspended particulate matter (SPM) of all water samples was treated the same way
as the melted ice samples.
Meteorological readings were made at 0,3,6,9, 12, 15, 18 and 21 UTe time. Wind speed
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
1989). The present study reports on particle entrainment into newly forming sea ice,
documented during freeze-up in the Laptev Sea (Siberian Arctic) in October 1995.
124
126
128
130
74
74 N
29202
LaptevSea
29101
73
73 N
72
72 N
124 E
126 E
128 E
130 E
Figure 1: Study area and location of ice stations during the expedition Transdrift III (27. Sept.
- 31. Oct. 1995). The first three digits of the station numbers are days of the year.
Methods
One aim of the Transdrift III expedition (27. Sept. - 31. Oct. 1995) conducted in the Laptev Sea
aboard the Russian lIB "Kapitan Dranitsyn", was to study sediment entrainment into sea ice. In
this paper, we focus on samples taken in and adjacent to the Lena Delta (Figure 1). A total of
seven cores of young ice (13 to 20 cm thick) were sampled by means of an ice auger (9 cm
diameter) on one helicopter and two ship stations. At two additional ship stations, three samples
of nilas were taken by hand from a diving plattform, lowered to the ice surface. The ice cores
were split into smaller sections of about 10 cm thickness, and all ice samples were melted at
room temperature and vacuum filtered over 0.45 J.1m Durapore and Whatman GFIF filters.
Afterwards, the filters were desalinated with distilled water and freeze-dryed.
The water column was sampled on three ship stations, using a 5 L water sampler, from which
I L was subsampled. A total of seven water samples were taken in 0, 5, 10 and 18 m water
depth. Additionally, four water samples were taken from directly beneath the ice underside. At
one helicopter station, three samples of the Lena River water were taken with aIL plastic
bottle. The suspended particulate matter (SPM) of all water samples was treated the same way
as the melted ice samples.
Meteorological readings were made at 0,3,6,9, 12, 15, 18 and 21 UTe time. Wind speed