Studies on water movements and sediments in Southern Lake Michigan : part 1[-3] ... / by John C. Ayers.

Drogue V was set at 36 feet; upon recovery it showed
evidence of grounding. Its direction of movement and its
rate of movement are suspect.
Drogues II, III, and IV retained the same relative
positions during the drift. Set about 50 feet apart, the intervals between them had opened to about 1/8th mile by 1245 -1255 on the 9th. At recovery IV was a half mile from III and
II was a mile behind III.
Drogue II moved an apparent 6.7 miles in 22.9 hours —an
indicated speed of 0.29 mph. Drogue III travelled an apparent
7.8 miles in 23.2 hours for an indicated speed of 0.34 mph.
Drogue IV drifted an apparent 7.9 miles during 23.4 hours,
giving an indicated speed of 0.34 mph.
The chronology of positions during this run was:
9 Oct. 0920 #II IIII IV, V 41~51.68, 87~29.3' (set, radar fix)
1245-1255 #11 41~52o.2, 87029o.0 (sextant fix)
#1II 41052o3% 87029.O0 (sextant fix)
#IV 41052.3', 87~28.98 (sextant fix)
#V 41052.28, 87029,.2 (sextant fix)
10 Oct, 0730 #V 4153.5' 87030Q*7 (recovery, sextant fix)
0815 #11 4l157.0S 87O30.1' (recovery, sextant fix)
o830 #11 41l57.9,s 87o30o2Q (recovery, sextant fix)
0845 #IV 41l58.2 87~29 60 (recovery, sextant fix)
The wind regime for this run was:
8 Oct. (evening) SE 4 knots
9 Oct. SSW 6-10 k
10 Oct. (early AM) SSE 12-20 k
Drogue run, 9-10 November 1963(Fig 6 This drogue run
was carried out with all drogue floats being of low-windage

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