NP-04
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Parameter Time Coverage (Years)
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"NORTH POLE-4" DRIFTING STATION (first shift)
Drift duration: 371 days.
Mean speed: 6.8 km/day
Drift track length: 2532 km
Ice floe size at opening: 2600x2800 m
"NORTH POLE-4" DRIFTING STATION (second shift)
Drift duration: 378 days
Mean speed: 6.6km/day
Drift track length: 2500 km
Ice floe size at opening: The ice floe size at the shift start was 1100x800 m with breaks at the floe edges. In December it was 800x500 m and 1200x800 m in March.
"NORTH POLE-4" DRIFTING STATION (third shift)
Drift duration: 356 days
Mean speed: 5.3 km/day
Drift track length: 1937 km
Ice floe size at opening: The ice floe size was 800x500 m at opening the station decreasing to 400x200 m at its closing.