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Nansen bottles,

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to 6 each cast. ]

Speciakiy improvised plastic cottles, h in every cast.
Bathythermograph at 12 positions.

Plankton net cast, samples collected at two stations at 2 knots

+ onapRE

and depths to about 500 feet,
|

|

Vertical profile measurements of intensity to 2h0 feet at
3 stations.

vee

Eight hundred miles of continuous monitoring of surface layer

intensity.

A few intercomparisons were made at deck-level and bridge-level

with Rad-Safe units.

°

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PNDrE

cpm

Inter-station Measurements

Extra surface water samples were taken at 15 points on the course

without stopping.
Preliminary Results
Fig. 2.7-1 shows:
Unprocessed field measurements of radiation intensity due to fall-out

from Runt 2,
Positions of hydrographic stations where deep water samples were

Collected, and
Positions where vertical profiles of intensity were measured directly.
The broken line represents the intensity of filtered radiation, giving
Telative intensityin terms of distance from the solid course line as a base.
No correction has been applied for attenuation due to age, character of

fall-out, nor for diffusion of surface water, and final instrumental calirations have not been utilized.

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COPIED/DOE
LANL RG 7

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-TS7-

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