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

been made to indicate the superimposed portions.
Computed current direction changed from northward to southward about two miles east of the buoy. Major southward current
was indicated between two and four miles east of the buoy. Major
northward current was indicated to lie between 10 and 12 miles
west of the buoy.
Current directions by dynamic height computation and by
drogues were in agreement. Current velocity obtained by dynamic
computation was 0.6 to 0.7 that given by the drogues.
The wind regime for this run was:
25 Oct. SSW 8-12 knots
26 Oct. S 13 k
Studies off Milwaukee
Drogue run, 24 October 1963, near USPHS Buoy 17 (Fig. 11):
On 24 October a surface drogue (IV) and a deep drogue (I, 70
feet) were set at 0923 and at 1040, respectively, near the
position of USPHS Buoy 17. Positions were by sextant fix.
Drogue IV travelled an apparent 5.6 miles in 8 hours 25
minutes for an indicated speed of 0.67 mph.
Drogue I moved an apparent 2.8 miles during 7 hours 36
minutes, giving an indicated velocity of 0.37 mph at the 66-70
foot level.
The chronology of positions during this run was:
0923 #IV 43~07.61' 87~50.51 (set)
1040 #1I 43~07.81, 87~50.7' (set)
1140 #IV 43~08.91, 87~5101
1748 #IV 43~12.11, 87~52.4' (recovery)
1816 #1 4310lO.O' 87051.51 (recovery)

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