open sea (Fig. 8).
Preparations for the Pield:
Preliminary planning coordi-
nated by the Division of Biology and Medicine and by Joint Task
,
Force 7, specified that the survey vessel,
the WALTON (DE 361),
me
should report to Eniwetok on or about June 5 and that she should
be available for the cruise for approximately ten days after
aha,
fs
oy
June 10.
The WALTON reported on schedule at Eniwetok, and was
joined immediately thereafter by members of the survey party,
who began the supervision of the installation of survey equip-
ment.
Survey Eguipment:
ton,
sampling water,
The equipment used in collecting plani-
and continuous monitoring of surface water,
was installed on the afterdeck of the WALTON, approximately
on
ae
above the port screw.
The counters, a recorder, and chemistry
laboratory facilities were placed below decks in the after
officers' quarters and in a crew's berthing compartment.
cifically,
5 i
1.
Spe-
the major items of equipment were:
A continuous surface water monitoring probe with tank
wn |
and water connections (Pig. 1), a unit designed and constructed
oy
by the HASL.
2.
535
,
A power winch (Fig 2), feeding 3/16 inch steel cable
over an A-frame and davit, for the use of plankton nets (Fig. 3)
and water sampling bottles (Fig. 4).
3.
A steel platform (Pig. 4) extending two feet over the
port side of the ship to provide space for work with nets and
water sampling bottles.
4,
A temporary chemistry laboratory set up on sheet ply-