Volume 51 (1999) Number 4 
471 
Between the surface and about 20 m depth as 
well as in the bottom layer, the difference in the 
mean current direction is only a few degrees. As has 
been mentioned above, significant differences oc 
cur in layers 5 and 6 because the model cannot re 
solve the sharp shear due to its layer thickness. 
Variances and co-variances, as well as the mean 
and eddy kinetic energy k M and k E \ also are of a 
comparable order of magnitude. Due to the strong 
tides there is much more energy in the current fluc 
tuations than in the mean currents (see k E lk M in 
Table 3). 
layer 
bin 
depth 
m 
u 
cm/s 
V 
cm/s 
mag 
cm/s 
speed 
cm/s 
dir 
0 
k E k M 
(cm/s) 2 
u’u’ 
vV 
(cm/s) 2 
uV 
k E /k M 
M 
1 
4.0 
1.6 
0.2 
36.0 
1.6 
81 
802.2 
1.3 
1471 
133 
-392 
625 
A 
15 
6.0 
2.4 
0.4 
36.8 
2.4 
80 
832.6 
2.9 
1558 
105 
-267 
289 
M 
2 
10.0 
1.2 
0.5 
34.7 
1.3 
68 
727.7 
0.8 
1277 
177 
-405 
897 
A 
13 
10.0 
1.8 
0.5 
36.2 
1.9 
75 
806.1 
1.7 
1468 
144 
-380 
465 
M 
3 
14.0 
0.9 
0.4 
34.3 
0.9 
65 
698.2 
0.5 
1192 
205 
-396 
1565 
A 
11 
14.0 
1.4 
0.5 
34.8 
1.5 
70 
735.5 
1.2 
1289 
182 
-405 
627 
M 
4 
18.0 
0.6 
0.3 
34.0 
0.6 
63 
677.4 
0.2 
1136 
218 
-380 
3272 
A 
9 
18.0 
0.6 
0.3 
33.6 
0.7 
63 
673.7 
0.2 
1136 
209 
-386 
2716 
M 
5 
22.0 
0.3 
0.1 
33.4 
0.3 
70 
645.1 
0.0 
1071 
219 
-348 
11130 
A 
7 
22.0 
-0.1 
-0.1 
32.7 
0.2 
219 
622.9 
0.0 
1014 
229 
-352 
54705 
M 
6 
27.0 
0.0 
-0.2 
32.1 
0.2 
168 
586.2 
0.0 
958 
214 
-291 
27418 
A 
5 
26.0 
-0.5 
-0.7 
31.7 
0.9 
212 
572.5 
0.4 
907 
238 
-304 
1543 
M 
7 
34.0 
-0.2 
-0.8 
28.7 
0.8 
193 
453.0 
0.3 
720 
186 
-194 
1360 
A 
1 
34.0 
-0.3 
-1.4 
27.4 
1.4 
191 
414.4 
1.0 
639 
190 
-181 
398 
Table 3: Current statistics model (M) and ADCP (A) data 
layer 
bin 
depth 
m 
r 
% 
delta 
cm/s 
1 
15 
5 
zonal 
0.95 
91 
0.7 ± 12.1 
merid. 
0.67 
45 
0.2 ± 8.9 
2 
13 
10 
zonal 
0.96 
91 
0.5 ±11.2 
merid. 
0.87 
76 
0.1 ± 6.5 
3 
11 
14 
zonal 
0.95 
90 
0.5 ±11.3 
merid. 
0.93 
86 
0.2 ± 5.3 
4 
9 
18 
zonal 
0.95 
90 
0.0 ± 10.9 
merid. 
0.94 
88 
0.1 ± 5.1 
5 
7 
22 
zonal 
0.95 
90 
-0.5 ± 10.3 
merid. 
0.94 
88 
-0.1 ± 5.3 
6 
5 
27 
zonal 
0.95 
91 
-0.5 ± 9.5 
merid. 
0.94 
88 
-0.4 ± 5.3 
7 
1 
34 
zonal 
0.95 
90 
-0.1 ± 8.5 
merid. 
0.93 
86 
-0.5 ± 5.2 
r = correlation coefficient 
delta = mean (V 
k.. - -ra 2 + v\ - 
1 YmodelLi Std. 
-ru’u’+ v’v’1. Wll 
deviation 
lll'= U - n—