UNCLASSIFIED
CLOUD RADIUS
EFFECTIVE DOWNWIND DIRECTION
EFFECTIVE FALLOUT WIND SPEED
SECTOR ANGLE
DISTANCE TO ZONE 1
DEPOSITION BOUNDARY
CLOUD RADIUS
EFFECTIVE DOWNWIND DIRECTION
EFFECTIVE FALLOUT WIND SPEED
SECTOR ANGLE
DISTANCE TO ZONE 1
DEPOSITION BOUNDARY
1018002 MAY97 2800N 09300W
RADFO ATP-45
OUTPUTS
ENGLISH
4.9
NM
135.
DEG
24
KNOTS
40.
DEG
52.8
NM
1156.5 TO 1183.0
NM
METRIC
9.0
KM
135.
DEG
45
MIS
40
DEG
97.7
KM
2041.6 TO 2190.7
KM
UNCLASSIFIED
Figure 5-3.Example of a TESS RADFO ATP-45 output.
as discussed in ATP-45. Figure 5-3 shows a typical
TESS RADFO (radiation fallout) output for a 200 KT
weapon.
The effective downwind forecast message and the
TESS outputs are used mostly for planning purposes.
For example. a task force commander may ask what the
fallout pattern would be if a 20 KT weapon were to be
detonated at some location. You would either have
TESS calculate the parameters for you using the latest
upper-vvind data, or you would use an EDF containing
the various yield groups for the area covering the
specific location. The fallout pattern is then plotted on
an appropriate chart. In this case, you would use the
EDF message CHARLIE group. which is a forecast for
all weapons in the 5-KT to 30-KT range. Keep in mind
that the TESS RADFO program should not be used for
high altitude bursts and deep-water bursts. The actual
plotting procedure is discussed in the next section.
REVIEW QUESTIONS
Q1.
What does the term "NBC warfare" mean?
Q2.
What NATO publication outlines procedures for
reporting and plotting NBC warning hazard
areas?
Q3.
Q4.
Q5.
How many types of NBC reporting messages are
used and how do NBC messages for ground
forces and NBC messages for naval forces
differ?
What is the basic difference between an Effective
Downwind Forecast (EDF) and an Effective
Downwind Message (EDM)?
What does yield group "DELTA" indicate in an
EDF message?
NUCLEAR EFFECTIVE DOWNWIND
MESSAGE
Of the six NATO NBC reports previously
mentioned, you will be primarily concerned with the
NAV NBC 3 NUC or NBC 3 NUC when plotting nuclear
fallout patterns.
When a report of evaluated information is
composed for transmission to Naval Forces, it is entitled
NAV NBC 3 NUC, and is referred to as a Naval Effective
Downwind Message, or NAV EDM These messages
provide positions in geographical coordinates, angular
measurements in degrees true, distances in nautical
miles, and speeds in knots. The NAV NBC 3 NUC report
5-4