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Health Physics
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August 2010, Volume 99, Number 2
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Fig. 1. Top Panel: HYSPLIT-predicted fallout pattern near Ujelang Atoll resulting from the Dog test. Bottom Panel:
HYSPLIT-predicted fallout pattern at Ujelang Atoll resulting from the Item test.
importance of accurate upper-air wind data whichlargely
influence the trajectory of the radioactive cap cloud that
contains over 80% of the radioactivity. There were,
however, only a few weather stations in the Marshall
Islands during the years of nuclear testing (1946-1958)
and they were located at significant distances from the
nuclear weapons test sites. Thus, there were limited
meteorological data collected that were directly relevant.