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tions of the man drier and radar dues. Moreover, since this staodard ermr is
appmximately three timer larger than the mrresponding ermr term obserwd in the
simulations, there is no strong evidenee to suggest that a good positive correlation
exists between the tangential components estimated h m the radar data and the
corresponding drifter estimates. H m , it may he noted that the scatter in the
pbts h m these cases are not ar randomly distributed ar the preceding deduction
mmts. Rom observing Figure 5.7, one notes that the points are ewnly distributed
about the line of unity slope, indicating a positive wmiation, albeit with a large
regression standard error relative to the standard devistions of the simulated radar
and drifter tangential curnnt estimates. There may he a number of ieasoas for this
result. First of all, the Large errors may indicate the current - not uniform over
the setors: a scenario that w not d e d in this thesis. In this case, the resuits
may be unpredictable since the nature of the current regime is unImo-. However,
if this the case one may expmt the radial current ertimater h m this tffhnique
and the direct radial component cornparkon to be urnorrelated. Tbis certainly
not the ease since the erron for both comparisons m e on the order of 6.5 emjs,
which is within the m r bounds of the radar and drier technique. Therefore, a
contradiction is apparent with respfft to this rdt. Semndly, it is plausible that
the mean drifter tangenti Components were not adequately reprenented by the paint
drifter estimate. In other words, the actual tangential component exhibits a greater
variabiihr bath temporally and spatially, than the radial component. This is evident
fmm Table 5.3 where the tangential component standard errors are approximately
twice that of the radial's. Another explanation for the suspect tangentlrrl component
comparison may be due to pcmible system problems which were undetected during
the experimental period. For example, the beamforming accuracy of the system was
nwer thoroughly investigated during the program period. The beamforming sys-