Lesson 2/Learning Event 8
The dose rate for letter Item X on the NBC 5 (Nuclear) Report varies
from that in STANAG 2103. The US Army has determined 20
cGy(rad)/hr is a more meaningful figure than 30 cGy(rad)/hr for the
militarily significant perimeter of the fallout area at H + 1 hour.
It is not necessary, nor even desirable, to report all four of the contours of different dose rates. Four are
given to provide flexibility. (In the example only two are reported.) (See figure 23 on page 80.)
When a contour closes to form a complete ring, the first coordinate is repeated at the end (see example
for 300 cGy(rad)/hr).
Colors used for plotting and when sending the report as a trace, are as follows:
Red for 1,000 cGy(rad)/hr.
Green for 300 cGy(rad)/hr.
Blue for 100 cGy(rad)/hr.
Black for 20 cGy(rad)/hr. (See Note above.)
Contour lines are to be annotated with the dose rates.
Users of NBC 5 are not confined solely to the use of the letter items shown in the example; other letter
items from the NBC reporting system may be added at the user's discretion.
From the division NBC 5, the readings should be transmitted to the three brigades; the division artillery;
the armored cavalry squadron; the aviation, signal, and engineer battalions; the MP company; the
support command of the division attached units; and any other units designated by the commander. A
disadvantage of this method is that it requires the addressee to replot data from the NBC 5 (Nuclear)
Report and draw in dose-rate contours, a time-consuming process. Staff planners must consider that the
shape of dose-rate contours drawn to correspond with a relatively brief series of readings and co-
ordinates can vary significantly. If practical, the NBC 5 (Nuclear) Report should be followed by
messenger-delivery of a hard copy.
If electrical communications for hard copy are not available
and if time
NBC 5 (Nuclear) Reports.