AT 
the Hawaii-to-Aleutian surveys will be extended westward, 
In the late spring a zigzag line of oceanographic stations 
is planned between the 155th and 160th meridians from 
Hawaii north. Some of the standard stations of the 1961 
and 1962 operations will be repeated, and stations will 
be concentrated in the region of the boundary between the 
Sub-Arctic water and the North Pacific Central water. 
Subsurface currents will be investigated in this region 
with Swallow pingers and possibly with current meters from 
deep anchor stations, Bottom photographs will be made in 
the Aleutian Trench, the rise to the south of it, the abys- 
sal plain, and the Hawaiian Rise to determine the visual 
changes in bottom characteristics across the region. Spe- 
cial water samples will be obtained for the National 
Institute of Oceanography in England. Details of the bio- 
logical program (BF), coring program (GS), and radioactivity 
studies (SIO) have yet to be worked out. When the late 
Summer weather makes gravity observations marginal, the area 
of underway operations will be shifted to the southern end 
of the region. 
The SURVEYOR (C&GS) with Loran-C control will make 
several crossings of the Hawaiian Swell between Hawaii and 
Midway with PDR, magnetometer, gravity meter, and surface 
water measurements. She will continue these underway sur- 
veys between Midway and 45°N working eastward from the 
