WMOD00406

• Contract/Permit #: 7-07-83-V0001
• Title: Turbulant Diffusion Studies of Winter Storms Over the Sierra Nevada Mountains
• Date: 12/1/1981
• Weather Modification - Doc Type: Report

6.3.3

6.3.4

6.3.5

6.3.6

6.4.1

6.4.2

6.4.3

6.4.4

sive locations of the AgI seeding curtain, on 20

February 1979 case study. . . . . . . . .

Typical power spectra of lateral (v') and true air-

speed (TAS'), on 20 February 1979 case study.

A sample of analog traces of longitudinal (u') and

la tera 1 (v') wind components

Autocorrelation functions of longitudinal (u') and

lateral (v') wind components, from data presented in

Fig. 6.3.4

L
Calculated values of variances for different T (solid
1/3
lines) by the LTD model, and S (dashed line) by the

Da tche lor's S approach when 0 = Y = 125 m

Flight track of the K/A on 8 February 1978, over the

Sierra Nevada Mountains

Aircraft sounding for 8 February 1978 case study.
Horizontal wind speed (V), potential temperature (8)

and indicated turbulence (IT) are shown. . . . . . .

Vertical cross section along the 60 0 radial over the

Sierra Nevada Mountains. The light line, with arrows

corresponding to 5 min intervals, represents the K/A's

flight tracK. Wind direction, isotach and isentrope

analysis, and observed AgI plume are also indicating.

Traces of potential temperature (8 '), longitudinal

(u'), lateral (v'), and vertical (w') wind components

with respect to the wind direction, for 8 February

1978. They correspond to the flight segment a t I tun

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