WMOD00310

• Title: Cloud Physics Investigations - University of Wyoming - 1977-1981
• Date: 11/1/1982
• State: WY
• Weather Modification - Doc Type: Report

TABLE OF CONTENTS

1. INTRoDUCTION .
2. GENERAL CHARACTERISTICS OF CuCg IN THE MILES CITY AREA
2. 1 Cloud Base Temperature
2.2 Cloud Horizontal Dimension
2.3 Precipitation Probability
2.4 Droplet Concentrations
2.5 Droplet Sizes
2.6 Liquid Water Content
2.7 Entrainment .
2.8 Ice Concentrations
2.9 Updrafts . .
2.10 Buoyancy . . .
2.11 Other Cloud Characteristics
2.12 CLoud Lifetime
3. PRECIPITATION PROCESSES

3.1 Ice Nucleation
3.2 Ice-Phase Precipitation Processes
3.3 Graupel Development. ; . . . . .
3.3.1 Prel iminary Calculation
3.3.2 An Improved Numerical Technique
3.3.3 Resu 1 ts ... . . . . . . . . .
3.4 Ice Multiplication . . . . . . . .
3.5 Coalescence Development of Large Drops

4. PHYSICAL INTERPRETATION OF HIPLEX-l RESULTS

4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12

The Physical Hypothesis. .
The Experimental Procedures
The Response Variables
The Initial Producation of Ice
The Onset of Riming. . . . . .
The Growth to Precipitation Embryos
The Depletion of Liquid Water Via Conversion to
Earlier Development of Precipitation
Total Rainfall ............
The Decay of Liquid Water Content. . .
Limitations on Precipitation Formation
Conclusions and Recommendations. . . .

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