WMOD00379

• Title: Potential Opportunities for Precipitation Augmentation in the Eastern Tennessee Valley
• Date: 2/1/1988
• Weather Modification - Doc Type: Report

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Figure 4.4

Figure 4.5

Figure 4.6

Figure 4.7

Figure 4.8

Figure 4.9

Figure 4.10
Figure 4.11

Figure 4.12

Figure 4.13

Figure 4.14

Figure 4.15

GOES 2 km resolution infrared satellite image showing
example of several different categories used in study.
The large cloud shield seen over eastern Tennessee
is an example of pre-cold frontal lIoverrunningll,
IIdeep-stratiform cloudsll, and the distinctive bend
in the clouds over Tennessee is indicative of a
II comma cloud II. .......... . 19

Same as Fig. 4.4 showing example of clo~d category called
lI~mbedded bandll. This is sho~~ as the light gray region
on the back side of the colder cloud shield associated
with a cold front., . . . . . . . . . . . . . . 19

Same as Fig. 4.4 showing ~xample of cloud category
dalled "mesoscale convective complexll. . . . . . 20

Companion picture to Fig. 4.6, only for the visibl~

i,mage. ................ . 20

Same as Fig. 4.2, only showing example of cloud category
II cum u 1 0 n i mb u s II. . . . . .. . . . . . . . . . . . 21

Same as Fig. 4.2, only showing example of cloud category
IIcirrus/middle cloudll. .... . 21

Matching infrared image to Fig. 4.9.

22

Same as Fig. 4.2, only showing example of cloud category
called IIshallow stratus.1I . . . . . . . . . . . . . . 22

Same as Fig. 4.4, only showing example of
synopt i c/mesosca 1 e category call ed IIcut-off 10\,,11.
Synoptic charts also shown. . . . . . . . . . . . . . 23

Gray-scale enhancement curve used on many infrared
satellite images shown in this report. ....... 24

Number of 6-hour periods experiencing the yarious cloud
categories described at bottom of figure. (Cl = clear,
Cv = convection (see text), Os = deep stratiform, Ws =
warm-topped stratiform, Ci = cirrus/middle cloud, MCC =
mesoscale convective complex. See text for meaning of
percentages on top of each bar. . . . . . . . . . . . 25

Same as Fig. 4.14, only showing results for various
synoptic/mesoscale classifications (CUT-off, CLO
FNT = cold front, CMA-CLO = comma cloud, OVRR =
overrunning). . . . . . . . . . . . . . . . . . . . . 25

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