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 2.1

Figure 2.2

Figure 3.1

Figure 3.2

Figure 3.3

Figure 3.4
Figure 3.5
Figure 3.6
Figure 3.7
Figure 3.8

Figure 3.9

Figure 4.1

Figure 4.2

Figure 4.3

FIGURES

Page

Eastern TVA region showing the four priority target

4

areas . . .

. . . . . . . . . . . . . . .- . . . . . .

Topography of the eastern TVA region as shown by colOr
scale on top of the figure. Primary measurement sites
referred to in the text are annotated on the figures. 6

Precipitation totals falling above Chattanooga for the
three spring months from 1970 through 1987. . . . .. 8

Moisture anomaly for eastern Tennessee plotted by year
since 1895 (from Karl and Young, 1987). . . . . 8

Percentage of normal rainfall above Chattanooga by month
for the 6-year study period. . . . . . . 9

Percentage of normal rainfall above Chattanooga by month
for the period 1970-1987. .............. 9

Frequency distribution of daily rainfall amounts above
Chattanooga for March 1982-1987. . .11

Same as Fi'g. 3.5, only for April.

. . .11

.12

Same as Fig. 3.6, ,only for May.

Correlation between monthly precipitation above
Chattanooga (as percent of normal) and the number of pre-
cipitation days per month for all years 1982-1987.
Linear correlation coefficient shown. ....... .13

~ Correlation between monthly precipitation above
Chattanooga (as percent of normal) and average daily
amount per month for each year 1982-1987. Linear corre-
lation coefficient shown. . . .. . . . . .13

Worksheet used to tabulate cloud and synoptic/mesoscale
features observed on satellite images. Four 6-hour time
blocks were used to summarize the results as shown in
upper right of figure. ............... 16

GOES 1 km resolution,visible satellite image showing
example of cloud category called "convective cells". 18

Same as Fig. 4.2, only showing example cloud category
called IIconvective bandll. . . . . . . . . . . . " . . 18

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