Chemistry Reference
In-Depth Information
slocomb.m
14135728
0.8
(a)
0.6
0.4
0.2
(b)
20.96
20.86
3
(c)
2
1
(d)
280
240
(e)
20.7
20.5
2500
3000
3500
4000
4500
5000
5500
6000
Time (s)
Fig. 1.
Case 1413, buoy encountered internal wave soliton and slick bands. (a)
Mean square curvature, (b) surface water temperature, (c) wind speed, (d) wind di-
rection, and (e) air temperature
Wind readings from shipboard display indicate northerly in the first
hour after deployment. The wind speed increased from 3.5 m s
-1
at 14:00 (
t
| 30 s) to 5 m s
-1
at 15:00 (
t
| 3630 s). The wind started shifting clockwise
and gradually decreased to 3 m s
-1
from 30q at 15:37 (
t
| 5850 s), then in-
creased to 5 m s
-1
from 30q at 16:00 (
t
| 7230 s). In the afternoon, wind
continued shifting and speed reached 9 m s
-1
from 75q at 17:00 (
t
| 10830
s). Similar fluctuation of wind velocities was recorded at the drifting buoy
(Figs. 1c, d). There are some apparent differences between the ship obser-
vation and the buoy recording. Because the buoy was too far away from
the ship, we are able to establish only semi-quantitative correlation be-
tween ship observations and buoy recording. The time difference can be
attributed to the spatial distance of the ship and the buoy. From radar
tracking, the distance was approximately 2 km at 14:49 and the buoy was
barely visible from the ship by unaided eyes. (In fact, the buoy was too far
away at the end of the experiment it disappeared from the ship radar. NRL
P3 aircraft and R/V Bartlett had to be summoned to help searching and re-
covering the buoy.) The wind direction output shown in Fig. 1 is not cali-
