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Aerographers Mate 1 & C | Next
FORECASTING THE MOVEMENTS AND INTENSITY OF FRONTS |
Figure 3-12.-Visual, loud noon, second day.
center at H shows the cold temperatures of
cumulus congestus and cumulonimbus cloud tops.
The same vorticity center is apparent in the
previous (daylight) picture (fig. 3-14) west of the
frontal blind.
SATELLITE IMAGERY PRINCIPLES
The forecaster may use the following general
conclusions in adapting satellite imagery to
forecasting the change in intensity of surface
cyclones:
·
The use of nighttime IR data together with
daytime data yields 12-hour continuity with
respect to cyclone development or decay.
·
A hook-shaped cloud mass composed of cold
temperatures, (high cloud tops) indicates an area
of strong upward vertical motion with attendant
surface pressure falls.
·
As the dry tongue widens, the cyclone
continues to deepen.
3-16
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