AIDJEX Bulletin #40 - Polar Science Center - University of Washington

14. Ocean currents at manned camps (combined with winds and ice velocity)
The manned camps served as floating platforms from which ocean currents relative
to ice motion were measured continuously at depths of 2 m and 30 m.
Hourly averages of ocean currents combined with hourly 10 m winds and 3-hour
smoothed ice velocity (files 12 and 2) from each manned camp for the full
operating period of the AIDJEX program are available on a single file. They
are sorted by camp by time, with separation markers between 20-day intervals.
This file is called WIIIO Wind, Ice, Ocean.
15. Ocean currents measured from RAMS buoys
Two RAMS spar buoys deployed offshore in the Beaufort Sea in November 1975
contained sensors which measured ocean currents at depths of 2 m and 30 m.
A magnetic compass heading for the buoy and internal bearing of the sensors
are given with the data at 3-hour intervals. These data have been combined
with buoy positions to allow for absolute current determination. One buoy
operated until 1 Oct. 1976; the other provided meaningful data only until
28 March 1976.
16. Oceanic mixed layer characteristics
The upper ocean mixed layer is defined in depth by the point, or points, at
which a rapid change in salinity occurs. This layer was measured for surface
temperature, surface salinity, and depth twice daily at each manned camp.
All available measurements (one per day) were published in tabular form
in AIDJEX Bulletin No. 32 (June 1976). These are data for the period
11 April-29 June 1975.
17. Ocean depth
The depth of the ocean beneath the path of the main AIDJEX camp was measured
during two periods. Acoustic soundings were taken every hour from 25 May
to 3 August 1975 and from 18 December 1975 to 25 April 1976. Round-trip
time of sound travel is given together with interpreted depth. A file of
daily average depth merged with NavSat position is also available.
18. Surface pressure (Val i dated) , offshore RAMS buoys
Four RAMS buoys deployed offshore in the Beaufort Sea measured surface pressure.
These measurements have been corrected for scale and sensor drift and
have been smoothed and interpolated to 3-hour readings. Buoys were operational
for the following periods: buoy 207, 18 March-28 August 1976; buoy 1015,
23 March-30 September 1976; buoy 1245, 4 November 1975-1 October 1976; and
buoy 1416, 5 November 1975-28 March 1976.
In March 1977 two more RAMS buoys with pressure sensors were deployed offshore
in the OCS region. Buoy 1023 operated from 18 March to 10 July, buoy 1617
from 8 March to 12 October. These pressure data were transferred to OCS.
The data are sorted by buoy by time, and are merged with buoy position in
latitude and longitude.
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