The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . easternberings00hood Year: 1981 9hr Approximate ice edge (23 hr) , Direction of swell 270° 23 hr RED BLUE YELLOW GREEN PURPLE-2 PURPLE-t Km Figure 12-18. A schematic diagram of the observed ad- vance and relative positions of the targeted ice floes during the 23-hour observation period. TABLE 12-1 Averaged wind data for the 23-hour period Time Period Average Speed Average Bearing (m/sec) (true degrees) 0-4 021 4-9 000 9-23 006 0-23 008 At this time, we observ
The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . easternberings00hood Year: 1981 9hr Approximate ice edge (23 hr) , Direction of swell 270° 23 hr RED BLUE YELLOW GREEN PURPLE-2 PURPLE-t Km Figure 12-18. A schematic diagram of the observed ad- vance and relative positions of the targeted ice floes during the 23-hour observation period. TABLE 12-1 Averaged wind data for the 23-hour period Time Period Average Speed Average Bearing (m/sec) (true degrees) 0-4 021 4-9 000 9-23 006 0-23 008 At this time, we observed many bands of ice similar to those shown in Fig. 12-15. Figs. 12-2la and b show two aerial views of a band near the ship similar to the targeted band. The targets were in the band shown in Fig. 12-18, which was now about 15 km south of the ice edge. Fig. 12-22 shows a schematic drawing of the band and the target positions at 23 hours. The band was about 2 km wide at its widest part, and 8-10 km long. It was widest at the end toward the swell, and had a long, curving tail. Fig. 12-23 shows the way the band looked toward the tail; and Fig. 12-24 shows the way the head looked, sighting against the direction of swell propa- gation. Because of the action of the swell and the wind waves, this part of the band consisted of many small fragments of ice, pancake and larger, mostly
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