WtHH?’r’
The Ohief of the U. S. Weather Bureau provided the services of Pad
&
Humphrey, %3, who vae ordered to t~ortiy
duty with the Air Forces
for further ~ssignment to the meteorologicalstaff of J!l!I-7.Mr. Bumphrey,
formerly, Lieute~t
WHR, ~
served w assist~t staff SerologicalOff-
icer for Operation CROSSROADS. He provided liaieon with the U. S. Weather
Bureau where, in collaborationwith the Air Force, initial cllmatic studies
of wind, weather end air trajectorieswere prep~ed and ueed for operational
Plming
purposes.
A scieutfficprogram vae plamned and included documentationof all
meteorologicalreports, observationson the rate of rise and height of
the atomic cloud, volume of the cloud, microbarographobservationsIM order
to obtain preliminary estimates of the bomb energy, energy
estimates of
the bomb from thermodynamicconsiderations,cloud trajectorycalculation,
atmospheric turbulent diffision,