WMOD00472

• Title: Estimation of Cloud Liquid Water in Winter Storms on the Mogollon Rim
• Date: 5/1/1993
• Weather Modification - Doc Type: Report

CONTENTS
Page
Introduction . . 1
Background . 1
Statistical approach . 2
Methodology . . . 2
Regression results 9
Model estimation ofCLW . 13
Model features 13
Modeling results . . . 15
Summary and discussion 15
Performing task 2 17
References . . . . . . 19
TABLES

Table

1 Multiple regression results with sounding derived relative humidities (RR) and
wind speeds (WS) as independent variables and HJ CLW as the dependent

variable . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . 12
2 Multiple regression results with SFM estimates as an independent variable and
HJ CLW as the dependent variable . . . . . . . . . . . . . . . . . . . . . . . 15

FIGURES

Figure

1 Mogollon Rim of Arizona with locations of ground instruments employed in the
1987 experiments (Super et al., 1989) . . . . . . . . . . . . . . . . . . . . . . 3
2 CVR temperatures versus corresponding INW temperatures for 50-mb levels
from 850 mb to 500 mb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 CVR relative humidities versus corresponding INW relative humidities for 50-mb
levels from 850 mb to 500 mb . . . . . . . . . ... . . . . . . . . . . . . . . . . 5
4 CVR wind directions versus corresponding INW wind directions for 50-mb levels
from 850 mb to 500 mb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 CVR wind speeds versus corresponding INW wind speeds for 50-mb levels from
850 mb to 500 mb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 CVR 750-mb temperatures versus corresponding INW temperatures .. . . . . 6
7 CVR 750-mb relative humidities versus corresponding INW relative humidities 7
8 CVR 750-mb wind directions versus corresponding INW wind directions 7
9 CVR 750-mb wind speeds versus corresponding INW wind speeds. . . . 8
10 CVR 750-mb wind speeds versus corresponding TUS wind speeds . . . . 9
11 HJ CLW 7-h means versus corresponding CVR 700- and 750-mb relative

humidities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
12 HJ CLW 7-h means versus corresponding CVR 700- and 750-mb wind speeds. 10
13 HJ CLW 7-h means versus corresponding INW 700- and 750-mb wind speeds. 11
14 HJ CL'Y ?-.h means versus corresponding TUS 700- and 750-mb relative

humIdItIes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
15 Smith-Feddes model inputs and outputs . . . . . . . . . . . . . . . . . . . . . 14
16 Smith-Feddes model generated output for cloudy layers of a Tucson sounding 14

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