. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography ArKii. 1075 KIR WAN, McNALLY, CHANG AND MOLIN'ARI T 363 Table 1. Hydrotlynann'c characteristics of Nova University Driller and drogues. '.00r Drifter <4« =' m:. (."/.» = A,** XlO-1 tn-, (."»,= 1 .2 2 Drogues m m parachute parachute Window shade A, m- 'm5 m3 the other hand, if the drifter loses its drogue, Af and Cds become thai of the buoy (see Table 1). The percentage e
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography ArKii. 1075 KIR WAN, McNALLY, CHANG AND MOLIN'ARI T 363 Table 1. Hydrotlynann'c characteristics of Nova University Driller and drogues. '.00r Drifter <4« =' m:. (."/.» = A,** XlO-1 tn-, (."»,= 1 .2 2 Drogues m m parachute parachute Window shade A, m- 'm5 m3 the other hand, if the drifter loses its drogue, Af and Cds become thai of the buoy (see Table 1). The percentage error then exceeds 100% for a wind speed of only 50 limes the surface current. 3. Three-drag body problem When the drifter is drogued at depth z, there arc three drag bodies to consider and it is necessary to invert (3) numerically. Some examples of these cal- culations are given in Figs. 2-4. These calculations are most conveniently depicted in a coordinate system oriented in the direction of the subsurface current V*. Also, the magnitude of this current is fixed at unity. The inputs for the calculation are the areas and drag coefficients for the three drag bodies (Table 1) and the magnitudes of the surface current and wind T" ij â¢â .00 â - 0 00. |Vs|-5 x|vz| |V$|* x|vz| |v0|=5o x|vz| X-VELOCITY Fig. 2. The effect of surface current with a constant wind magnitude on a Nova drifter drogued at some subsurface depth by a m parachute. The l<:cus for the drifter velocity for a given surface current magnitude occurs within the indicated enclosed region. 350 3 ⢠Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science
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