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APPENDIX A
RADIOLOGICAL DATA MAPS

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A.1

EXPLANATION OF PLOPTEN Dnata

Figures 4.1 through 4.7) show the data from the world-wide

sampling network, plotted in accordance with the key shown on

each map.

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Because of the. greater density of reporting stations

in the United States, that data is shown on separate larger scale

maps.
.

In addition to the data from the fixed station, the maps

also include the results of non-routine observations made at
selected locations for a few days following each burst. Such.
_ observations are indicated as "Special Data" on the northern
hemisphere maps. Ordinarily, these observations consist of a
series of shorter period collections rather than the. 2h-hour samples
taken by the routine network. Since the exact times of observation
‘are unavailable, these data are listed in an arbitrary order on
the appropriate day.
All activity has been extrapolated to collection date on the
basis of the MIK= burst miess otherwise indicated. Where it was
clearly evident that debris from the KING burst was present at a
station on a given day, the activity for that day and all succeeding .
- @ays was extrapolated on the basis of the second burst and indicated
by Ryn:

On the United States maps, areas nw
which at least one gummed
paper at a station had activity of 500 d/m or more are delinsated

by a solid line to show the movement of individual patches of debris

across the country.

The data has been closely inspected for inconsistencies.
Questionable data, which would be misleading if accepted as correct,
have been enclosed in parentheses. In scme cases, the data is

doubtful because they require unreasonable (and in some cases

impossible) wind speeds, others are questioned because they are

than two gummed paper samples on one map, but none on the day before
or after, no doubt the result of misdating the data card in the

field. Obviously, a portion of the data is not correctly plotted,
but the inconsistency. is obvious without being so marked. In addition,

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isolated in tims and space. . A certain number of questionable data
ars not so indicated, however. For example, some stations show more

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