(3) Yield from stabilized cloud bottom or top angle.
Align 60
seconds on flash-to-bang scale with 250 mils on elevation angle scale; read
answers under pointer. Answer: Cloud bottom 10.8 2KT, cloud top 3.1
2KT.
PART B - NUCLEAR BURST REPORTING
The present reporting system is prescribed in NATO STANAG 2103. The format
provides a rapid means of disseminating information.
If security is
necessary, the commander may direct that rapid and secure means be used, if
available. When a first-use report is transmitted, it must be under a FLASH
precedence. This initial NBC 1 (Nuclear) Report is sent to the next higher
headquarters.
Subsequent NBC 1 (Nuclear) Reports are under an IMMEDIATE
precedence to the same headquarters.
1.
Nuclear Burst Reporting.
Nuclear burst information must be obtained and reported to provide data for
determining the location of ground zero and estimating nuclear yield.
Normally, only headquarters units of field artillery and air defense
artillery battalions and batteries are the most suitable units for
collecting and reporting of nuclear burst data. Appropriate commanders may
designate other units at their discretion.
Small units should train
specific personnel to collect nuclear burst data.
Small units not
specifically designated as reporting units should submit NBC 1 (Nuclear)
reports only when requested to do so by higher headquarters. It is unlikely
that any single unit will be in a position to obtain all the information
specified in the nuclear burst report.
2.
Fallout.
Exclusive of the damage from the explosion, the harm from fallout may be
extensive. Fallout may be simply defined as the settling to the earth of
airborne particles of radioactive material resulting from a nuclear
explosion.
The final location of fallout depends primarily on (1) the
heights from which the fallout particles begin their descent and (2) the
wind structure between the ground and the various parts of the nuclear cloud
when fallout begins.
It is important to expect militarily significant fallout from a surface
burst. This occurs because a considerable amount of soil is vaporized and a
large amount of dirt is drawn upward by the updraft created by the rising
fireball. As a result, the radioactive material condenses into relatively
large particles which fall back to earth rather quickly.
While the area
covered is not as large as a comparable airburst, the radioactivity in any
one place can be considerable.
CM5206
1-12
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